Commit Graph

660 Commits

Author SHA1 Message Date
Vivek Gautam 858edde001 phy: Move ULPI phy header out of drivers to include path
Although ULPI phy is currently being used by tusb1210,
there can be other consumers too in future. So move this
to the includes path for phy.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-06-01 15:28:27 +05:30
Vivek Gautam 706a3b6995 phy: qcom-usb: Remove unused ulpi phy header
Ulpi phy header is not used for anything. Remove the same
from qcom-hs and qcom-hsic phy drivers.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Suggested-by: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-06-01 15:28:24 +05:30
Fengguang Wu 9605bc4643 phy: qualcomm: phy-qcom-qmp: fix application of sizeof to pointer
drivers/phy/qualcomm/phy-qcom-qmp.c:847:37-43: ERROR: application of sizeof to pointer

 sizeof when applied to a pointer typed expression gives the size of
 the pointer

Generated by: scripts/coccinelle/misc/noderef.cocci

CC: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-06-01 15:03:41 +05:30
Wei Yongjun 53bf959015 phy: qcom-qmp: fix return value check in qcom_qmp_phy_create()
In case of error, the function of_iomap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.

Fixes: e78f3d15e1 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets")
Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-05-19 14:13:39 +05:30
Tobias Regnery 6239879b41 phy: qcom-qusb2: add NVMEM dependency
With CONFIG_NVMEM=m and CONFIG_PHY_QCOM_QUSB2=y we get a link error from
calls to devm_nvmem_cell_get and nvmem_cell_read:

drivers/built-in.o: In function `qusb2_phy_probe':
binder.c:(.text+0x4750): undefined reference to `devm_nvmem_cell_get'
drivers/built-in.o: In function `qusb2_phy_init':
binder.c:(.text+0x489c): undefined reference to `nvmem_cell_read'

Fix this by adding a Kconfig dependency to ensure we can only have this
driver built in when the nvmem functions are also built in or we see the
empty stub functions. We can still build this driver as a module when the
nvmem core is build as module, too.

Fixes: deffad633413 ("phy: qcom-qusb2: New driver for QUSB2 PHY on Qcom chips")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Sjoerd Simons 9d685ed77b phy: rockchip-usb: Add vbus regulator support.
On rockchip devices vbus is supplied by a separate power supply, often
through a regulator. Add support for describing the the regulator in
device-tree following the same convention as several other usb phy's.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Rafał Miłecki fff3364a63 phy: bcm-ns-usb3: split all writes into reg & val pairs
So far all the PHY initialization was implemented using some totally
magic values. There was some pattern there but it wasn't clear what is
it about.

Thanks to the patch submitted by Broadcom:
[PATCH 5/6] phy: Add USB3 PHY support for Broadcom NSP SoC
and the upstream "iproc-mdio" driver we now know there is a MDIO bus
underneath with PHY(s) and their registers.

It allows us to clean the driver a bit by making all these values less
magical. The next step is switching to using a proper MDIO layer.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Vivek Gautam e78f3d15e1 phy: qcom-qmp: new qmp phy driver for qcom-chipsets
Qualcomm SOCs have QMP phy controller that provides support
to a number of controller, viz. PCIe, UFS, and USB.
Add a new driver, based on generic phy framework, for this
phy controller.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Vivek Gautam ca04d9d3e1 phy: qcom-qusb2: New driver for QUSB2 PHY on Qcom chips
PHY transceiver driver for QUSB2 phy controller that provides
HighSpeed functionality for DWC3 controller present on
Qualcomm chipsets.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Meng Dongyang d99b1ab323 phy: rockchip-inno-usb2: add support of usb2-phy for rk3328
Add usb2-phy config information in the data of match table for
rk3328.

Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Chunfeng Yun c0250fe50e phy: phy-mt65xx-usb3: disable 100uA extraction from SS port to HS port
There will be a problem if SS port is diasbled and HS port extracts
100uA from SS port, so disable extract 100uA from SS port in the case,
when disable it, PA0_RG_USB20_INTR_EN should be set, otherwise HS port
only works on LS.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Chunfeng Yun 8d6e1957f1 phy: phy-mt65xx-usb3: add support for new version phy
There are some variations from mt2701 to mt2712:
1. banks shared by multiple ports are put back into each port,
    such as SPLLC and U2FREQ;
2. add a new bank MISC for u2port, and CHIP for u3port;
3. bank's offset in each port are also rearranged;

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Chunfeng Yun 15de15c6b4 phy: phy-mt65xx-usb3: move clock from phy node into port nodes
each port has its own reference clock, the HighSpeed port is 48M,
and the SuperSpeed port is usually 26M, put them into port node for
flexibility, this can close clock if the port is not used.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Chunfeng Yun 04466efca5 phy: phy-mt65xx-usb3: split SuperSpeed port into two ones
Currently usb3 port in fact includes two sub-ports, but it is not
flexible for some cases, such as following one:
    usb3 port0 includes u2port0 and u3port0;
    usb2 port0 includes u2port1;
If wants to support only HS, we can use u2port0 or u2port1, when
select u2port0, u3port0 is not needed;
If wants to support SS, we can compound u2port0 and u3port0,
or u2port1 and u3port0, if select latter one, u2port0 is not needed.

So it's more flexible to split usb3 port into two ones and also try
best to save power by disabling unnecessary ports.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Chunfeng Yun 98cd83a056 phy: phy-mt65xx-usb3: increase LFPS filter threshold
Increase LFPS filter threshold to avoid some fake remote wakeup
signal which cause U3 link fail and link to U2 only at about
0.01% probability.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Chunfeng Yun 1969f6952b phy: phy-mt65xx-usb3: improve RX detection stable time
The default value of RX detection stable time is 10us, and this
margin is too big for some critical cases which cause U3 link fail
and link to U2(probability is about 1%). So change it to 5us.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Icenowy Zheng c957b7d236 phy: sun4i-usb: enable PHY0 dual route switching for A64 USB PHY
Allwinner A64 SoC features a switchable PHY0 like the one in H3, which
can switch between a MUSB controller and a pair of OHCI/EHCI controller.

Enable PHY0 route auto switching for A64.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Yoshihiro Shimoda 441a681b88 phy: rcar-gen3-usb2: fix implementation for runtime PM
This patch fixes an issue that this driver doesn't take care of the runtime
PM. This code assumed that devm_phy_create() called pm_runtime_enable(dev),
but it misunderstood the dev_phy_create()'s specification.
This driver should call its own pm_runtime_enable() before
dev_phy_create().

Fixes: f3b5a8d9b5 ("phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Colin Ian King 7dfa3026db phy: rockchip-inno-usb2: fix spelling mistake: "connecetd" -> "connected"
trivial fix to spelling mistake in dev_dbg message, also rejoin
lines to clean up checkpatch warning

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Krzysztof Kozlowski 7a66647b25 phy: exynos: Use one define for enable bit
There is no need for separate defines for Exynos4 and Exynos5 phy enable
bit and MIPI phy reset bits.  In both cases there are the same so
simplify it.

This reduces number of defines and allows removal of one header file.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:18 +05:30
Krzysztof Kozlowski cf09ee5997 phy: exynos-mipi-video: Use consistent method to address phy registers
Exynos4 MIPI phy registers are defined with macro calculating the offset
for given phyN.  Use the same method for Exynos5420 to be consistent.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:05 +05:30
Krzysztof Kozlowski 424c984148 phy: exynos5: Remove duplicated defines of PHY register defines
Phy drivers access PMU region through regmap provided by exynos-pmu
driver.   However there is no need to duplicate defines for PMU
registers.  Instead just use whatever is defined in exynos-regs-pmu.h.

This reduces number of defines.

Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:42:58 +05:30
Krzysztof Kozlowski 5812f0106c phy: exynos4: Remove duplicated defines of PHY register defines
Phy drivers access PMU region through regmap provided by exynos-pmu
driver.   However there is no need to duplicate defines for PMU
registers.  Instead just use whatever is defined in exynos-regs-pmu.h.

Additionally MIPI PHY registers for Exynos5433 start from the same
address as Exynos4 and Exynos5250 so re-use existing defines.

This reduces number of defines and allows removal of one header file.

Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:42:58 +05:30
Martin Blumenstingl 5b85927e5c phy: meson8b-usb2: fix offsets for some of the registers
The register offsets for REG_DBG_UART (and all following) were off by
0x4. This was not a problem yet because these registers are currently
not used by the driver.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:42:58 +05:30
Icenowy Zheng 3ecc25e12f phy: sun4i-usb: support automatically switch PHY0 route to MUSB/HCI
On newer Allwinner SoCs (H3 and after), the PHY0 node is routed to both
MUSB controller for peripheral and host support (the host support is
slightly broken), and a pair of EHCI/OHCI controllers, which provide a
better support for host mode.

Add support for automatically switch the route of PHY0 according to the
status of dr_mode and id det pin.

Only H3 have this function enabled in this patch, as further SoCs will
be tested later and then have it enabled.

As H5 is reusing the PHY driver of H3, this function is also enabled.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:42:58 +05:30
Icenowy Zheng 864ebdf0bd phy: sun4i-usb: add PHYCTL offset for H3 SoC
The config structure of H3 in phy-sun4i-usb driver have the PHYCTL
register offset missing.

Add it. From the BSP source code, we know that the offset should be
0x10.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:42:57 +05:30
Icenowy Zheng d699c1d086 phy: sun4i-usb: change PHYCTL register clearing code
It seems that all SoCs with the PHYCTL register offset as 0x10 need the
PHYCTL register to be cleared before it's written.

Change PHYCTL register clearing code to judge whether clearing is needed
based on the PHYCTL offset.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:42:57 +05:30
Paul Gortmaker 4574a92c59 phy: phy-exynos-pcie: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/phy/Kconfig:config PHY_EXYNOS_PCIE
drivers/phy/Kconfig:    bool "Exynos PCIe PHY driver"

...meaning that it currently is not being built as a module by anyone.

Lets remove the couple traces of modular infrastructure use, so that
when reading the driver there is no doubt it is builtin-only.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Pankaj Dubey <pankaj.dubey@samsung.com>
Cc: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:42:57 +05:30
Stephen Boyd 1a09b6a7c1 phy: qcom-usb-hs: Add depends on EXTCON
We get the following compile errors if EXTCON is enabled as a
module but this driver is builtin:

drivers/built-in.o: In function `qcom_usb_hs_phy_power_off':
phy-qcom-usb-hs.c:(.text+0x1089): undefined reference to `extcon_unregister_notifier'
drivers/built-in.o: In function `qcom_usb_hs_phy_probe':
phy-qcom-usb-hs.c:(.text+0x11b5): undefined reference to `extcon_get_edev_by_phandle'
drivers/built-in.o: In function `qcom_usb_hs_phy_power_on':
phy-qcom-usb-hs.c:(.text+0x128e): undefined reference to `extcon_get_state'
phy-qcom-usb-hs.c:(.text+0x12a9): undefined reference to `extcon_register_notifier'

so let's mark this as needing to follow the modular status of
the extcon framework.

Fixes: 9994a33865 e2427b09ba (phy: Add support for Qualcomm's USB HS phy")
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-03-09 15:29:57 +05:30
Jaehoon Chung 11d94e026b phy: phy-exynos-pcie: fix the wrong error return
When it doesn't get the blk_base's resource, it was returned
the error about phy_base, not blk_base.
This patch is for fixing the wrong error return about blk_base.

Fixes: cf0adb8e28 ("phy: phy-exynos-pcie: Add support for Exynos PCIe PHY")

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-03-09 15:29:57 +05:30
Rafał Miłecki 9200c6f177 Revert "phy: Add USB3 PHY support for Broadcom NSP SoC"
This reverts commit d7bc1a7d41 ("phy: Add USB3 PHY support for
Broadcom NSP SoC") as we already have driver for this PHY (shared by NS
and NSP). It was added in commit e5666281d9 ("phy: bcm-ns-usb3: new
driver for USB 3.0 PHY on Northstar").

Instead of adding separated driver & duplicating code we should work on
improving existing (old) one. Thanks to work done by Broadcom we know
there is MDIO bus we weren't aware of & we know register names which
makes initialization more clear. This is very valuable info and we
should work on using it in existing driver afterwards.

Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2017-03-09 15:29:44 +05:30
Linus Torvalds 60e8d3e116 pci-v4.11-changes
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJYrvYlAAoJEFmIoMA60/r8FuQQAMDpia3kacyCAJpa+zjmyMNF
 1slytaoIvP37dFq9XF1em031lwGNr5sahZ7nP1EKgALz4odZUzait7BUABcfviIn
 Uesz2E1s/miMo4/0X1j9DqY9xV649DmmSIgk1yn3kvCkH/+Ix27dexu47auGzPEb
 H/sEfd1RZidjZ5EWaG0ww5FrHcuge+JHtcH6vFQtWsTOspcx++IhaVIGjC0JCpqK
 DnlQKilsJ38KUkvuDcxWjtFKxAc8De9jvCR4kX96OvbHahfAWwBO4AtUv7U3JpJN
 2nyQk+I5kRagbfBucaXZISUtWM7h4peLiL+TGkvKg8eOVlOCedjYlrZW4SWkbAN+
 0qwcHRQ8lwhNmgp3VYq7pmnugIvW4P2Fh3uqaplCAIwlpODxWPDQP7HLM2kyzmvq
 gPGi0R4Yo2PdIXqfbilrzbFVeyqkIFECr287a6+5PekC0DxsqZvOG0uA1mWKLIaH
 pRQMT0FO2SCCSOpcxRExeIj+XxhXlDVOrIBP6eMiFXAMgzUAyU8fLSZVMtXAvsTS
 02hVDOc/Fq2jKlCSoJRIiRp5aj1QDFS/DjBhOnW7pXuvUTCrfYBXY5NCdT9UV3Q7
 W6qHWkizRmRDGxUzqSODRt5aU7VOKbWvZnp10eJyKt5s2Iawe6We5V1NX+u18UIS
 Scc1nbuPTL6u1n8PsaBG
 =4Owc
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - add ASPM L1 substate support

 - enable PCIe Extended Tags when supported

 - configure PCIe MPS settings on iProc, Versatile, X-Gene, and Xilinx

 - increase VPD access timeout

 - add ACS quirks for Intel Union Point, Qualcomm QDF2400 and QDF2432

 - use new pci_irq_alloc_vectors() in more drivers

 - fix MSI affinity memory leak

 - remove unused MSI interfaces and update documentation

 - remove unused AER .link_reset() callback

 - avoid pci_lock / p->pi_lock deadlock seen with perf

 - serialize sysfs enable/disable num_vfs operations

 - move DesignWare IP from drivers/pci/host/ to drivers/pci/dwc/ and
   refactor so we can support both hosts and endpoints

 - add DT ECAM-like support for HiSilicon Hip06/Hip07 controllers

 - add Rockchip system power management support

 - add Thunder-X cn81xx and cn83xx support

 - add Exynos 5440 PCIe PHY support

* tag 'pci-v4.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (93 commits)
  PCI: dwc: Remove dependency of designware on CONFIG_PCI
  PCI: dwc: Add CONFIG_PCIE_DW_HOST to enable PCI dwc host
  PCI: dwc: Split pcie-designware.c into host and core files
  PCI: dwc: designware: Fix style errors in pcie-designware.c
  PCI: dwc: designware: Parse "num-lanes" property in dw_pcie_setup_rc()
  PCI: dwc: all: Split struct pcie_port into host-only and core structures
  PCI: dwc: designware: Get device pointer at the start of dw_pcie_host_init()
  PCI: dwc: all: Rename cfg_read/cfg_write to read/write
  PCI: dwc: all: Use platform_set_drvdata() to save private data
  PCI: dwc: designware: Move register defines to designware header file
  PCI: dwc: Use PTR_ERR_OR_ZERO to simplify code
  PCI: dra7xx: Group PHY API invocations
  PCI: dra7xx: Enable MSI and legacy interrupts simultaneously
  PCI: dra7xx: Add support to force RC to work in GEN1 mode
  PCI: dra7xx: Simplify probe code with devm_gpiod_get_optional()
  PCI: Move DesignWare IP support to new drivers/pci/dwc/ directory
  PCI: exynos: Support the PHY generic framework
  Documentation: binding: Modify the exynos5440 PCIe binding
  phy: phy-exynos-pcie: Add support for Exynos PCIe PHY
  Documentation: samsung-phy: Add exynos-pcie-phy binding
  ...
2017-02-23 11:53:22 -08:00
Jaehoon Chung cf0adb8e28 phy: phy-exynos-pcie: Add support for Exynos PCIe PHY
Add support for Generic PHY framework about Exynos SoCs.  Current Exynos
PCIe driver doesn't use the PHY framework, which makes it difficult to
upstream the other Exynos variants because of different PHY registers.

Move the codes relevant to PHY from Exnyos PCIe driver to PHY Exynos PCIe
driver.

[bhelgaas: depend on "OF && (ARCH_EXYNOS || COMPILE_TEST)", update
copyright year, both per Vivek]
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Jingoo Han <jingoohan1@gmail.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-02-21 07:48:42 -06:00
Vivek Gautam 0b10f64dbe phy: qcom-ufs: Fix misplaced jump label
We want to skip only tx/rx_iface clocks and not ref_clk_src
as well. Fix the jump label accordingly.

Fixes: 300f96771d ("phy: qcom-ufs: Skip obtaining rx/tx_iface_clk for msm8996 based phy")

Cc: Subhash Jadavani <subhashj@codeaurora.org>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: stable@vger.kernel.org
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:59:13 +05:30
Randy Dunlap fb43e86f42 phy: fix rockchip-inno-usb2 build errors
Fix build errors in phy-rockchip-inno-usb2.c. The driver uses
extcon interfaces so it should depend on EXTCON.

Fixes these build errors:

drivers/built-in.o: In function `rockchip_usb2phy_otg_sm_work':
phy-rockchip-inno-usb2.c:(.text+0x2bcb): undefined reference to `extcon_get_state'
phy-rockchip-inno-usb2.c:(.text+0x2cd4): undefined reference to `extcon_set_state_sync'
phy-rockchip-inno-usb2.c:(.text+0x2cec): undefined reference to `extcon_set_state_sync'
phy-rockchip-inno-usb2.c:(.text+0x2d2d): undefined reference to `extcon_get_state'
drivers/built-in.o: In function `rockchip_usb2phy_probe':
phy-rockchip-inno-usb2.c:(.text+0x31d7): undefined reference to `extcon_get_edev_by_phandle'
phy-rockchip-inno-usb2.c:(.text+0x321a): undefined reference to `devm_extcon_dev_allocate'
phy-rockchip-inno-usb2.c:(.text+0x3230): undefined reference to `devm_extcon_dev_register'
phy-rockchip-inno-usb2.c:(.text+0x375a): undefined reference to `extcon_register_notifier'

Found in linux-next but is also needed in mainline.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:06:53 +05:30
Yendapally Reddy Dhananjaya Reddy d7bc1a7d41 phy: Add USB3 PHY support for Broadcom NSP SoC
This patch adds support for Broadcom NSP USB3 PHY

Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:06:53 +05:30
Bjorn Andersson 42020c7065 phy: qcom-ufs: Suppress extraneous logging
The error paths of the common qcom-ufs functions for registering the
phy, acquiring clocks and acquiring regulators all print specific error
messages before returning an error, so there is no value in printing yet
another - more generic - message when this occur.

Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:06:53 +05:30
Bjorn Andersson 96c163f108 phy: qcom-ufs: Remove -always-on property
The fact that a regulator is always-on is a property of the regulator,
not a specific consumer. Implementing this in the driver leads to a
system behaviour that is dependent on if the Qualcomm UFS PHY was ever
(partially) probed.

If the specific regulator should be always on in a particular device,
mark it so by specifying "regulator-always-on" in the regulator node.

Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:06:52 +05:30
Bjorn Andersson 3471426f6d phy: qcom-ufs: Correct usage of regulator_get()
When regulator_get() tries to resolve a regulator supply but fail to
find a matching property in DeviceTree it returns a dummy regulator, if
a matching supply is specified but unavailable the regulator core will
return an error.

Based on this we should not ignore errors upon failing to acquire the
optional "vddp-ref-clk" supply.

Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:06:52 +05:30
Bjorn Andersson e7d5e41216 phy: qcom-ufs: Don't kfree devres resource
Upon failing to acquire regulator supplies the qcom-ufs driver calls
kfree() on the devm allocated memory used to store the name of the
regulator, leading to devres corruption.

Rather than switching to using the appropriate free function the patch
acknowledge the fact that "name" is always a constant string and we
don't actually need to create a local copy of it, but rather just
reference the constant string.

Fixes: add78fc057 ("phy: qcom-ufs: Use devm sibling of kstrdup for regulator names")
Cc: stable@vger.kernel.org
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:06:52 +05:30
Stephen Boyd e2427b09ba phy: Add support for Qualcomm's USB HS phy
The high-speed phy on qcom SoCs is controlled via the ULPI
viewport.

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: <devicetree@vger.kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:06:52 +05:30
Stephen Boyd 605b8652f7 phy: Add support for Qualcomm's USB HSIC phy
The HSIC USB controller on qcom SoCs has an integrated all
digital phy controlled via the ULPI viewport.

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-27 13:06:52 +05:30
Bhumika Goyal a8df2768c2 drivers: phy: constify phy_ops structures
Declare phy_ops structures as const as they are only passed as an
argument to the function devm_phy_create. This argument is of type const
struct phy_ops *, so phy_ops structures having this property can be
declared as const.
Done using Coccinelle:

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-16 16:41:51 +05:30
Chanwoo Choi 66adb88955 phy: sun4i-usb: Replace the deprecated extcon API
This patch replaces the deprecated extcon API as following:
- extcon_set_cable_state_() -> extcon_set_state_sync()

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-16 16:41:51 +05:30
Chanwoo Choi c6f30a5b8e phy: rcar-gen3-usb2: Replace the deprecated extcon API
This patch replaces the deprecated extcon API as following:
- extcon_set_cable_state_() -> extcon_set_state_sync()

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-16 16:41:51 +05:30
Icenowy Zheng 16c403614b phy: sun4i-usb: add support for V3s USB PHY
Allwinner V3s come with a USB PHY controller slightly different to other
SoCs, with only one PHY.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-16 16:41:51 +05:30
Baolin Wang 3445be595b phy: rockchip-inno-usb2: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set
According to the documentation, we should set the EXTCON_USB when
one SDP charger connector was reported.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-01-16 16:41:50 +05:30
Linus Torvalds a829a8445f SCSI misc on 20161213
This update includes the usual round of major driver updates (ncr5380,
 lpfc, hisi_sas, megaraid_sas, ufs, ibmvscsis, mpt3sas).  There's also
 an assortment of minor fixes, mostly in error legs or other not very
 user visible stuff.  The major change is the pci_alloc_irq_vectors
 replacement for the old pci_msix_.. calls; this effectively makes IRQ
 mapping generic for the drivers and allows blk_mq to use the
 information.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJYUJOvAAoJEAVr7HOZEZN42B0P/1lj1W2N7y0LOAbR2MasyQvT
 fMD/SSip/v+R/zJiTv+5M/IDQT6ez62JnQGWyX3HZTob9VEfoqagbUuHH6y+fmib
 tHyqiYc9FC/NZSRX/0ib+rpnSVhC/YRSVV7RrAqilbpOKAzeU25FlN/vbz+Nv/XL
 ReVBl+2nGjJtHyWqUN45Zuf74c0zXOWPPUD0hRaNclK5CfZv5wDYupzHzTNSQTkj
 nWvwPYT0OgSMNe7mR+IDFyOe3UQ/OYyeJB0yBNqO63IiaUabT8/hgrWR9qJAvWh8
 LiH+iSQ69+sDUnvWvFjuls/GzcFuuTljwJbm+FyTsmNHONPVY8JRCLNq7CNDJ6Vx
 HwpNuJdTSJpne4lAVBGPwgjs+GhlMvUP/xYVLWAXdaBxU9XGePrwqQDcFu1Rbx3P
 yfMiVaY1+e45OEjLRCbDAwFnMPevC3kyymIvSsTySJxhTbYrOsyrrWt5kwWsvE3r
 SKANsub+xUnpCkyg57nXRQStJSCiSfGIDsydKmMX+pf1SR4k6gCUQZlcchUX0uOa
 dcY6re0c7EJIQQiT7qeGP5TRBblxARocCA/Igx6b5U5HmuQ48tDFlMCps7/TE84V
 JBsBnmkXcEi/ALShL/Tui+3YKA1DfOtEnwHtXx/9Ecx/nxP2Sjr9LJwCKiONv8NY
 RgLpGfccrix34lQumOk5
 =sPXh
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This update includes the usual round of major driver updates (ncr5380,
  lpfc, hisi_sas, megaraid_sas, ufs, ibmvscsis, mpt3sas).

  There's also an assortment of minor fixes, mostly in error legs or
  other not very user visible stuff. The major change is the
  pci_alloc_irq_vectors replacement for the old pci_msix_.. calls; this
  effectively makes IRQ mapping generic for the drivers and allows
  blk_mq to use the information"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (256 commits)
  scsi: qla4xxx: switch to pci_alloc_irq_vectors
  scsi: hisi_sas: support deferred probe for v2 hw
  scsi: megaraid_sas: switch to pci_alloc_irq_vectors
  scsi: scsi_devinfo: remove synchronous ALUA for NETAPP devices
  scsi: be2iscsi: set errno on error path
  scsi: be2iscsi: set errno on error path
  scsi: hpsa: fallback to use legacy REPORT PHYS command
  scsi: scsi_dh_alua: Fix RCU annotations
  scsi: hpsa: use %phN for short hex dumps
  scsi: hisi_sas: fix free'ing in probe and remove
  scsi: isci: switch to pci_alloc_irq_vectors
  scsi: ipr: Fix runaway IRQs when falling back from MSI to LSI
  scsi: dpt_i2o: double free on error path
  scsi: cxlflash: Migrate scsi command pointer to AFU command
  scsi: cxlflash: Migrate IOARRIN specific routines to function pointers
  scsi: cxlflash: Cleanup queuecommand()
  scsi: cxlflash: Cleanup send_tmf()
  scsi: cxlflash: Remove AFU command lock
  scsi: cxlflash: Wait for active AFU commands to timeout upon tear down
  scsi: cxlflash: Remove private command pool
  ...
2016-12-14 10:49:33 -08:00
Greg Kroah-Hartman cdefb95bfc phy: for 4.10
Merge contains:
  *) Add new usb2 phy driver for Meson8b and GXBB
  *) Remove phy drivers added for miphy365 and STiH415/6 (as support for
     these SoCs are removed from the kernel)
  *) Add a sysfs entry to facilitate usb role swap in rcar SoC
  *) Add support for otg port in rk3399
  *) misc fixes in various phy drivers and cleanups
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJYLv5WAAoJEA5ceFyATYLZaiIQAJsYakJyg1yBks/z32eDPOBW
 KQVjh8OUsRr+ThKgV3eYaKcT9rSf1DvgYmzRtrLYtmzSXT39ttEg8Bg1GpfhzvzE
 zBUUOqmihc6idsnOseodviR5xzyT4LBhB0uTKpLN7WWA/GuIhT2uQlAiFqynLSrc
 TNF36K2PzespNss3/qBuOV+DVYzNpknctK7QmmbnaR46i+ZJUQv0HnzmXp/O0fzW
 WG98RY2Dd/udcq4CbFkkKScFu0JmF3Ec9wfF6/7JB8x4vrvg9WpG3R4WqDtc+Dsz
 o3htpDGUavafyzWnjvPCHhmnPdxRqM+7P+iyxonz/hOPIn6QN4dG1/5NqrMgc2oi
 Q4tIOKFPOhmCDvc7d+5AVLjfQhNZX4pfU8eZuOdWwgj3vZ2uwgyo2RGsLBqvqSXe
 dFLvQSEBZY71pMPC4CEKgwvwTh3Vu6GTVq5/FvqXYT127gWzfFynwLFNd2SjEFJ4
 urgRh+0Ankb0G5syZq6zerZC0SbWJnH56Lv+cgYwqndLZRHlFw/OsmyUBQi6iEhB
 mfCCrholxhJdsrVpSnXuRqiDG175MICNvYafT/Srcs3ozTmLDISn1HpjazFzDsY1
 Z357Nbv6pC2HahdvugmNaNtkoJrricxtDDF6B5CaARloRtSAUbjWA5BoClSaRa3c
 HfnXmFJnUbE69aDUspMj
 =jfKK
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

phy: for 4.10

Merge contains:
 *) Add new usb2 phy driver for Meson8b and GXBB
 *) Remove phy drivers added for miphy365 and STiH415/6 (as support for
    these SoCs are removed from the kernel)
 *) Add a sysfs entry to facilitate usb role swap in rcar SoC
 *) Add support for otg port in rk3399
 *) misc fixes in various phy drivers and cleanups

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-28 08:44:54 +01:00
Arnd Bergmann 5e253dfbdb phy: rockchip-inno-usb2: select USB_COMMON
When USB is disabled, we get a link error for this driver
because of the added OTG support

drivers/phy/phy-rockchip-inno-usb2.o: In function `rockchip_usb2phy_otg_sm_work':
phy-rockchip-inno-usb2.c:(.text.rockchip_usb2phy_otg_sm_work+0x1f4): undefined reference to `usb_otg_state_string'
drivers/phy/phy-rockchip-inno-usb2.o: In function `rockchip_usb2phy_probe':
phy-rockchip-inno-usb2.c:(.text.rockchip_usb2phy_probe+0x2c8): undefined reference to `of_usb_get_dr_mode_by_phy'

Other phy drivers select USB_COMMON for this, so let's do the same
here.

Fixes: 0c42fe48fd23 ("phy: rockchip-inno-usb2: support otg-port for rk3399")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:16 +05:30
Arnd Bergmann dd796e921e phy: rockchip-inno-usb2: fix uninitialized tmout variable
The newly added OTG support has an obvious uninitialized variable
access that gcc warns about:

drivers/phy/phy-rockchip-inno-usb2.c: In function 'rockchip_chg_detect_work':
drivers/phy/phy-rockchip-inno-usb2.c:717:7: error: 'tmout' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This replaces the use of the uninitialized variable with what
the value was in the previous USB_CHG_STATE_WAIT_FOR_DCD
state.

Fixes: 0c42fe48fd23 ("phy: rockchip-inno-usb2: support otg-port for rk3399")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:16 +05:30
Matt Ranostay 9d052aa01b phy: phy-twl4030-usb: emit VBUS status events to userspace
Emit KOBJ_ONLINE/KOBJ_OFFLINE action uevent on VBUS status changes.

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:16 +05:30
Hans de Goede 5d04c88379 phy_sun4i_usb: set_mode: Allow using set_mode to force end the current session
The sunxi musb has a bug where sometimes it will generate a babble
error on device disconnect instead of a disconnect irq. When this
happens the musb-controller switches from host mode to device mode
(it clears MUSB_DEVCTL_SESSION and sets MUSB_DEVCTL_BDEVICE) and
gets stuck in this state.

Clearing this requires reporting Vbus low for 200 or more ms, but
on some devices Vbus is simply always high (host-only mode, no Vbus
control).

This commit modifies sun4i_usb_phy_set_mode so that it will force
end the current session when called with the current mode, before this
commit calling set_mode with the current mode was a nop since id_det
would stay the same resulting in the detect_work not doing anything.

This allows the sunxi-musb glue to use sun4i_usb_phy_set_mode to force
end the current session without changing the mode, to fixup the stuck
state after a babble error.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:16 +05:30
Vivek Gautam e4d5973f9c phy: fix returnvar.cocci warnings
Remove unneeded variables when "0" can be returned.

Generated by: scripts/coccinelle/misc/returnvar.cocci

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:16 +05:30
Vivek Gautam 045ef31153 phy: Fix ptr_ret.cocci warnings
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR.

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:16 +05:30
Vivek Gautam 0e65ba283e phy: fix semicolon.cocci warnings
Remove unneeded semicolon.

Generated by: coccinellery/semicolon/semicolon.cocci

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:15 +05:30
Marek Szyprowski b3e78cbc3d phy: exynos-mipi-video: simplify check for coupled phy status
There is no need to access regmap of coupled phy to check its state - such
information is already in the phy device itself, so use it directly. This
let us to avoid possible access to registers of the device in the disabled
power domain if the coupled phy is already disabled.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:15 +05:30
Yoshihiro Shimoda 9bb86777fb phy: rcar-gen3-usb2: add sysfs for usb role swap
This patch adds sysfs "role" for usb role swap. This parameter can be
read and write. If you use this file as the following, you can swap
the usb role.

For example:
 1) Connect a usb cable using 2 Salvator-x boards
 2) On A-Device (ID pin is low), you input the following command:
   # echo peripheral > /sys/devices/platform/soc/ee080200.usb-phy/role
 3) On B-Device (ID pin is high), you input the following command:
   # echo host > /sys/devices/platform/soc/ee080200.usb-phy/role

Then, the A-device acts as a peripheral and the B-device acts as a host.
Please note that A-Device must input the following command if you
want the board to act as a host again. (even if you disconnect the usb
cable, since id state may be the same, the A-Device keeps to act as
peripheral.)
 # echo host > /sys/devices/platform/soc/ee080200.usb-phy/role

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:15 +05:30
Alexandre Bailon 23e9b38d8e phy: da8xx-usb: Configure CFGCHIP2 to support OTG workaround
If we configure the da8xx OTG phy in OTG mode, neither device or host
mode will work. That is because the PHY is not able to detect and notify
the driver that value of ID pin changed.
To work despite this hardware limitation, the da8xx glue implement a
workaround.
But to work, the workaround require the VBUS sense and the session end
comparator to enabled.
Enable them if the phy is configured in OTG mode.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:15 +05:30
Peter Griffin fb954c48ae phy: stih41x-usb: Remove usb phy driver and dt binding
documentation.

This phy is only used on STiH415/6 based silicon, and support for
these SoC's is being removed from the kernel.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:15 +05:30
Peter Griffin 4eb8eb1d30 phy: phy-miphy365x: Remove miphy365 driver and dt binding
documentation.

This phy is only used on STiH415/6 based silicon, and support for
these SoC's is being removed from the kernel.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:15 +05:30
William Wu 882e1492c7 phy: rockchip-inno-usb2: correct 480MHz output clock stable time
We found that the system crashed due to 480MHz output clock of
USB2 PHY was unstable after clock had been enabled by gpu module.

Theoretically, 1 millisecond is a critical value for 480MHz
output clock stable time, so we try to change the delay time
to 1.2 millisecond to avoid this issue.

And the commit ed907fb1d7c3 ("phy: rockchip-inno-usb2: correct
clk_ops callback") used prepare callbacks instead of enable
callbacks to support gate a clk if the operation may sleep. So
we can switch from delay to sleep functions.

Also fix a spelling error from "waitting" to "waiting".

Signed-off-by: William Wu <wulf@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:15 +05:30
William Wu ae9fc711d3 phy: rockchip-inno-usb2: correct clk_ops callback
Since we needs to delay ~1ms to wait for 480MHz output clock
of USB2 PHY to become stable after turn on it, the delay time
is pretty long for something that's supposed to be "atomic"
like a clk_enable(). Consider that clk_enable() will disable
interrupt and that a 1ms interrupt latency is not sensible.

The 480MHz output clock should be handled in prepare callbacks
which support gate a clk if the operation may sleep.

Signed-off-by: William Wu <wulf@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:15 +05:30
William Wu 98898f3bc8 phy: rockchip-inno-usb2: support otg-port for rk3399
The rk3399 SoC USB2 PHY is comprised of one Host port and
one OTG port. And OTG port is for USB2.0 part of USB3.0 OTG
controller, as a part to construct a fully feature Type-C
subsystem.

With this patch, we can support OTG port with the following
functions:
- Support BC1.2 charger detect, and use extcon notifier to
  send USB charger types to power driver.
- Support PHY suspend for power management.
- Support OTG Host only mode.

Signed-off-by: William Wu <wulf@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:14 +05:30
Martin Blumenstingl 5acefd4aed phy: meson8b-usb2: request a shared reset line
Both PHYs are sharing one reset line. With recent improvements to the
reset framework we can now also use reset_control_reset with shared
resets.
This allows us to drop some workarounds where the reset was only
specified for one PHY but not the other, to make sure that the reset it
only executed once (as the reset framework was not able to use
reset_control_reset with shared reset lines).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:14 +05:30
Wei Yongjun f42bec197d phy: meson8b-usb2: fix missing clk_disable_unprepare() on error
Fix the missing clk_disable_unprepare() before return from
phy_meson8b_usb2_power_on() in the error handling case.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:14 +05:30
Martin Blumenstingl 7965ba051e phy: meson: add USB2 PHY support for Meson8b and GXBB
This is a new driver for the USB PHY found in Meson8b and GXBB SoCs.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18 18:19:14 +05:30
Tony Lindgren f7c4a46352 phy: twl4030-usb: Fix for musb session bit based PM
Now with musb driver implementing generic session bit based
PM, we need to have the USB PHYs behaving in a sane way for
platforms implementing PM.

Currently twl4030-usb enables PM in twl4030_phy_power_on()
and then disables it in twl4030_phy_power_off(). This will
block PM runtime for the SoC when no cable is connected.

Fix the issue by moving PM runtime autosuspend call to
happen where it gets called in twl4030_phy_power_on().

Note that this patch should not be backported to anything
before commit 467d5c9807 ("usb: musb: Implement session bit
based runtime PM for musb-core") as before that all the
glue layers implemented their own PM.

Fixes: 467d5c9807 ("usb: musb: Implement session bit based
runtime PM for musb-core")
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-17 16:25:40 +01:00
Vivek Gautam 3d4640f1cf phy: qcom-ufs: Remove common layer phy exit callback
The common layer phy exit callback ufs_qcom_phy_exit()
calls phy_power_off() that has no meaning when phy_power_off()
callback is already registered with the phy provider and
the consumer makes use of the same.
Instead, add a no-op specific phy_exit() callback for now
to add the exit sequence at a later point.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:45 -05:00
Vivek Gautam feb3d79800 scsi: ufs-qcom: phy/hcd: Refactoring phy clock handling
Add phy clock enable code to phy_power_on/off callbacks, and
remove explicit calls to enable these phy clocks from the
ufs-qcom hcd driver.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:45 -05:00
Vivek Gautam 9c7ce698ba phy: qcom-ufs-qmp-xx: Move clock and regulator init out of phy init
The phy init is meant to do phy initialization rather than
just getting the clock and regulator. Move these clock and
regulator get to probe(), to make room for actual phy
initialization sequence.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:45 -05:00
Vivek Gautam 15887cb8cb phy: qcom-ufs: Remove unnecessary function declarations
Move the functions' definitions to remove unnecessary
declarations.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:45 -05:00
Vivek Gautam a378508d36 phy: qcom-ufs-qmp-xx: Discard remove callback for drivers.
remove() callback does a phy_power_off() only over the phy,
and nothing else now.
The phy_power_off() over the generic phy is called from the phy
consumer, and phy provider driver should not explicitly need to
call any phy ops.
So discard the remove callback for qcom-ufs phy platform drivers.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:45 -05:00
Vivek Gautam 300f96771d phy: qcom-ufs: Skip obtaining rx/tx_iface_clk for msm8996 based phy
The tx_iface_clk and rx_iface_clk no longer exist with UFS Phy
present on msm8996. So skip obtaining these clocks using
compatible match.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:45 -05:00
Vivek Gautam e41973769b phy: qcom-ufs-14nm: Add new compatible for msm8996 based phy
Add a new compatible string for 14nm ufs phy present on msm8996
chipset. This phy is bit different from the legacy 14nm ufs phy
in terms of the clocks that are needed to be handled in the driver.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:45 -05:00
Vivek Gautam 89bd296b78 phy: qcom-ufs: Cleanup clock and regulator initialization
Different menthods pass around generic phy pointer to
extract device pointer. Instead, pass the device pointer
directly between function calls.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:44 -05:00
Vivek Gautam add78fc057 phy: qcom-ufs: Use devm sibling of kstrdup for regulator names
This helps us in avoiding any requirement for kfree() operation
to be called exclusively over the allocated string pointer.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:44 -05:00
Vivek Gautam fd91ddad2e phy: qcom-ufs: Remove unnecessary BUG_ON
BUG_ON() are not preferred in the driver, plus the variable
on which BUG_ON is asserted is already checked in the code
before passing.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 18:05:44 -05:00
Icenowy Zheng 4320f9d4c1 phy: sun4i: check PMU presence when poking unknown bit of pmu
Allwinner SoC's PHY 0, when used as OTG controller, have no pmu part.
The code that poke some unknown bit of PMU for H3/A64 didn't check
the PHY, and will cause kernel oops when PHY 0 is used.

This patch will check whether the pmu is not NULL before poking.

Fixes: b3e0d141ca (phy: sun4i: add support for A64 usb phy)

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-05 13:45:02 +05:30
Shawn Lin 232c260982 phy-rockchip-pcie: remove deassert of phy_rst from exit callback
The deassert of phy_rst from exit callback is incorrect as when
doing phy_exit, we expect the phy_rst is on asserted state which was
done by power_off callback, but not deasserted state. Meanwhile when
disabling clk_pciephy_ref, the assert/deassert signal can't actually
take effect on the phy. So let's fix it anyway.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-05 13:45:02 +05:30
Axel Haslam 766325427f phy: da8xx-usb: rename the ohci device to ohci-da8xx
The ohci device name has changed in the board configuraion files,
hence, change the phy lookup table to match the new name.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-05 13:45:02 +05:30
Andreas Kemnade b78ea84a7d phy-twl4030-usb: initialize charging-related stuff via pm_runtime
twl4030_phy_power_on() initializes some bits which are required for
charging. As they are not set in twl4030_usb_runtime_resume()
a call to pm_runtime_get_sync() is not sufficient to enable charging.

This patch moves the initialization to twl4030_usb_runtime_resume()
so everything needed for charging is initialized upon
pm_runtime_get_sync().

That also gives improved possibilities to debug problems in that area
because the relevant parts can be checked separately. Charging can be
enabled without having the musb subsystem active.

As a side effect this hides some bugs in musb which causes
unbalanced calls to phy_power_off()/phy_power_on() so that
phy->power_count becomes -1.

The result is that e.g. the GTA04 phone (dm3730 + twl4030) works
finally as a usb gadget again and charging is working.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-14 10:59:12 +05:30
Andreas Kemnade 78489c7c48 phy-twl4030-usb: better handle musb_mailbox() failure
setting twl->linkstat = MUSB_UNKNOWN upon error in musb_mailbox as
introduced in
commit 12b7db2bf8 ("usb: musb: Return error value from musb_mailbox")
causes twl4030_usb_irq() to not detect a state change form cable connected
to cable disconnected after such an error so that
pm_runtime_put_autosuspend() will not be called and the usage counter
gets unbalanced. Such errors happen e.g. if the omap2430 module is not
(yet) loaded during plug/unplug events.

This patch introduces a flag instead that indicates whether there is
information for the musb_mailbox pending and calls musb_mailbox() if
that flag is set.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-14 10:59:11 +05:30
Chen-Yu Tsai 919ab2524c phy: sun4i-usb: Use spinlock to guard phyctl register access
The musb driver calls into this phy driver to disable/enable squelch
detection. This function was introduced in 24fe86a617 ("phy: sun4i-usb:
Add a sunxi specific function for setting squelch-detect"). This
function in turn calls sun4i_usb_phy_write, which uses a mutex to
guard the common access register. Unfortunately musb does this
in atomic context, which results in the following warning with lock
debugging enabled:

BUG: sleeping function called from invalid context at kernel/locking/mutex.c:97
in_atomic(): 1, irqs_disabled(): 128, pid: 96, name: kworker/0:2
CPU: 0 PID: 96 Comm: kworker/0:2 Not tainted 4.8.0-rc4-00181-gd502f8ad1c3e #13
Hardware name: Allwinner sun8i Family
Workqueue: events musb_deassert_reset
[<c010bc01>] (unwind_backtrace) from [<c0109237>] (show_stack+0xb/0xc)
[<c0109237>] (show_stack) from [<c02a669b>] (dump_stack+0x67/0x74)
[<c02a669b>] (dump_stack) from [<c05d68c9>] (mutex_lock+0x15/0x2c)
[<c05d68c9>] (mutex_lock) from [<c02c3589>] (sun4i_usb_phy_write+0x39/0xec)
[<c02c3589>] (sun4i_usb_phy_write) from [<c03e6327>] (musb_port_reset+0xfb/0x184)
[<c03e6327>] (musb_port_reset) from [<c03e4917>] (musb_deassert_reset+0x1f/0x2c)
[<c03e4917>] (musb_deassert_reset) from [<c012ecb5>] (process_one_work+0x129/0x2b8)
[<c012ecb5>] (process_one_work) from [<c012f5e3>] (worker_thread+0xf3/0x424)
[<c012f5e3>] (worker_thread) from [<c0132dbd>] (kthread+0xa1/0xb8)
[<c0132dbd>] (kthread) from [<c0105f31>] (ret_from_fork+0x11/0x20)

Since the register access is mmio, we can use a spinlock to guard this
specific access, rather than the mutex that guards the entire phy.

Fixes: ba4bdc9e1d ("PHY: sunxi: Add driver for sunxi usb phy")
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:43:38 +05:30
Randy Li 0f74ab59ce phy: rockchip-usb: use rockchip_usb_phy_reset to reset phy during wakeup
It is a hardware bug in RK3288, the only way to solve it is to
reset the phy.

Signed-off-by: Randy Li <ayaka@soulik.info>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:31:40 +05:30
Randy Li cac18ecb6f phy: Add reset callback
The only use for this is for solving a hardware design problem in
usb of Rockchip RK3288.

Signed-off-by: Randy Li <ayaka@soulik.info>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:31:39 +05:30
Hans de Goede 91d6e3b6bc phy-sun4i-usb: Warn when external vbus is detected
Warn when external vbus is detected when we're trying to enable our
own vbus.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Hans de Goede 6ba43c2919 phy-sun4i-usb: Add support for phy_set_mode
Together with some musb sunxi glue changes this allows run-time dr_mode
switching support via the "mode" musb sysfs attribute.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Hans de Goede 5f90d31cab phy-sun4i-usb: Simplify missing dr_mode handling
If we cannot get dr_mode or no id gpio is specified simply assume
peripheral mode, as this is always safe.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Hans de Goede 36f9159ba9 phy-sun4i-usb: Refactor forced session ending
The phy-sun4i-usb code supports forced ending a session on systems
which lack Vbus detection, to allow switching between host and peripheral
mode on such systems.

Role switching via the musb driver "mode" sysfs attribute requires force
ending the session too. This commit refactors the code to allow other
parts of the phy-sun4i-usb code to request a forced session end.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Hans de Goede 9745ceebc4 phy-sun4i-usb: Use bool where appropriate
We're using bool as true/false type in most places in phy-sun4i-usb.c
for consistency fixup the remaining uses of ints which are ever only
0 or 1 to be bools too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:15:19 +05:30
Chris Zhong 2a4d59625b phy: rockchip-typec: add pm runtime support
Adds pm_runtime support for rockchip Type-C, so that power domain is
enabled only when there is a transaction going on to help save power.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:13:29 +05:30
Arnd Bergmann cddbc4b7ef usb: phy: add USB_SUPPORT dependency
The driver now calls of_usb_get_dr_mode_by_phy, which is part of the
USB core layer, and it fails to build when that is not provided:

drivers/phy/phy-sun4i-usb.o: In function `sun4i_usb_phy_probe':
phy-sun4i-usb.c:(.text.sun4i_usb_phy_probe+0x140): undefined reference to `of_usb_get_dr_mode_by_phy'

We already have a couple of other PHY drivers with a dependency
on USB_SUPPORT, so that seems to be the easiest fix here.

An alternative would be to adjust the #ifdef in include/linux/usb/of.h
to also check for CONFIG_USB_SUPPORT.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Fixes: b33ecca87d ("phy-sun4i-usb: Add support for peripheral-only mode")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 17:12:58 +05:30
Chris Zhong e96be45cb8 phy: Add USB Type-C PHY driver for rk3399
Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
Type-C PHY is designed to support the USB3 and DP applications.
The USB3 operates in SuperSpeed mode and the DP can operate at RBR,
HBR and HBR2 data rates. This driver create 2 PHY devices separately
for USB3 and DisplyPort, and registers them under the child node.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:49:01 +05:30
David Lechner 4033d95218 phy: da8xx-usb: Fix syscon device name
The syscon device in board config/device tree has been renamed.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:49:00 +05:30
Frank Wang 3fa295667a phy: rockchip-inno-usb2: add COMMON_CLK dependency
On kernel builds without COMMON_CLK, the newly added rockchip-inno-usb2
driver fails to build:

drivers/phy/phy-rockchip-inno-usb2.c:124:16: error: field 'clk480m_hw'
has incomplete type
   struct clk_hw clk480m_hw;

In file included from include/linux/clk.h:16:0
                 from drivers/phy/phy-rockchip-inno-usb2.c:17:
include/linux/kernel.h:831:48: error: initialization from incompatible
pointer type [-Werror=incompatible-pointer-types]
   const typeof( ((type *)0)->member ) *__mptr = (ptr); \

  ... ...

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
2016-09-10 16:48:41 +05:30
Sekhar Nori 80fc6660ca phy: omap-usb2: support suspend/resume
Relying on PM-ops for shutting down PHY clocks was a
bad idea since the users (e.g. USB DWC3) might not
have been suspended by then.

Get rid of all PM-ops. It is the sole responsibility
of the PHY user to properly turn OFF and de-initialize
the PHY as part of its suspend routine.

Enable/disable PHY clock as part of ->init()/->exit()
call respectively. With this phy_init() and phy_exit()
can be called by PHY user during suspend/resume.

This is similar to what is done for ti-pipe3 driver.
See 31c8954efb1b ("phy: ti-pipe3: fix suspend")

The pm_runtime_enable() call in omap_usb2_probe()
is still required because without it, phy_create()
will not enable runtime PM on the phy device it
creates and phy_init() will not call
pm_runtime_get_sync().

Without pm_runtime_get_sync(), ocp2scp hwmod will
_not_ enable the IP and, thus, we will have abort
exceptions.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:39 +05:30
Yoshihiro Shimoda 800dcc307d phy: rcar-gen3-usb2: Add a compatible string for r8a7796
This driver can support for r8a7796 SoC. So, this patch adds it.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:38 +05:30
Axel Lin 5ed0e74104 phy: bcm-ns2-pcie: Set missing .owner field in ns2_pci_phy_ops
Add missing .owner field in ns2_pci_phy_ops, which is used for refcounting.
While at it, also makes ns2_pci_phy_ops const as it's never get modified.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-and-tested-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Pramod Kumar <pramodku@broadcom.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:36 +05:30
Axel Lin b9d0397fef phy: bcm-ns2-pcie: Get rid of struct ns2_pci_phy
By setting phy_set_drvdata(phy, mdiodev), struct ns2_pci_phy can be
removed.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-and-tested-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Pramod Kumar <pramodku@broadcom.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:36 +05:30
Baoyou Xie 713b3ce9a3 phy: tegra: mark tegra_xusb_lane_lookup_function() static
We get 1 warning when building kernel with W=1:
drivers/phy/tegra/xusb.c:104:5: warning: no previous prototype for 'tegra_xusb_lane_lookup_function' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:35 +05:30
Baoyou Xie 0674b440b8 phy: tegra: add missing header dependencies
We get 5 warnings when building kernel with W=1:
drivers/phy/tegra/xusb.c:948:27: warning: no previous prototype for 'tegra_xusb_padctl_get' [-Wmissing-prototypes]
drivers/phy/tegra/xusb.c:981:6: warning: no previous prototype for 'tegra_xusb_padctl_put' [-Wmissing-prototypes]
drivers/phy/tegra/xusb.c:988:5: warning: no previous prototype for 'tegra_xusb_padctl_usb3_save_context' [-Wmissing-prototypes]
drivers/phy/tegra/xusb.c:998:5: warning: no previous prototype for 'tegra_xusb_padctl_hsic_set_idle' [-Wmissing-prototypes]
drivers/phy/tegra/xusb.c:1008:5: warning: no previous prototype for 'tegra_xusb_padctl_usb3_set_lfps_detect' [-Wmissing-prototypes]

In fact, these functions are declared in linux/phy/tegra/xusb.h,
so this patch adds missing header dependencies.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:34 +05:30
Shawn Lin fcffee3d54 phy: add a driver for the Rockchip SoC internal PCIe PHY
This patch to add a generic PHY driver for rockchip PCIe PHY.
Access the PHY via registers provided by GRF (general register
files) module.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:33 +05:30
Frank Wang 0e08d2a727 phy: rockchip-inno-usb2: add a new driver for Rockchip usb2phy
The newer SoCs (rk3366, rk3399) take a different usb-phy IP block
than rk3288 and before, and most of phy-related registers are also
different from the past, so a new phy driver is required necessarily.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Suggested-by: Heiko Stuebner <heiko@sntech.de>
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Suggested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:31 +05:30
Julia Lawall 3ea981ed81 phy: qcom-ufs: use of_property_read_bool
Use of_property_read_bool to check for the existence of a property.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e1,e2,x;
@@
-	if (of_get_property(e1,e2,NULL))
-		x = true;
-	else
-		x = false;
+	x = of_property_read_bool(e1,e2);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:29 +05:30
Rafał Miłecki e5666281d9 phy: bcm-ns-usb3: new driver for USB 3.0 PHY on Northstar
Northstar is a family of SoCs used in home routers. They have USB 2.0
and 3.0 controllers with PHYs that need to be properly initialized.
This driver provides PHY init support in a generic way and can be bound
with XHCI controller driver.

There aren't any public datasheets from Broadcom so we can't have nice
defines for all used bits. It means we just follow Broadcom's
initialization procedure using their magic values. We were quite lucky
actually that Broadcom put some comments in their SDK reference code
explaining what given writes are responsible for.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:28 +05:30
Icenowy Zheng b3e0d141ca phy: sun4i: add support for A64 usb phy
There's something unknown in the pmu part that shared with H3.
It's renamed as PMU_UNK1 from PMU_UNK_H3.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:27 +05:30
Axel Lin d223472505 phy: exynos5-usbdrd: Remove "static" from local variable
The 'reg' local variable does not need to be static.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10 16:48:25 +05:30
Christophe JAILLET 017300da3a phy: sun9i-usb: fix error handling
This is likely that checking 'phy->hsic_clk' instead of 'phy->clk' is
expected here.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Chen-Yu Tsai <wens@csie.org
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-08-12 14:59:10 +05:30
Axel Lin bf8ca651e1 phy: brcm-sata: Return proper error if brcm_sata_phy_init fails
Return proper error instead of 0 if brcm_sata_phy_init fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-08-12 14:59:10 +05:30
Hans de Goede b33ecca87d phy-sun4i-usb: Add support for peripheral-only mode
Use the new of_usb_get_dr_mode_by_phy() function to get the dr_mode
from the musb controller node instead of assuming that having an id_det
gpio means otg mode, and not having one means host mode.

Implement peripheral-only mode by adding a sun4i_usb_phy0_get_id_det
helper which looks at the dr_mode, always registering our extcon and
always monitoring vbus.

If dr_mode is not specified in the dts, do not register phy0 as we then
do not know how to treat it. This is actually a good thing as this means
we will not be registering phy0 on devices where the otg controller is
not enabled in the devicetree.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-08-12 14:59:10 +05:30
Linus Torvalds 07f00f06ba MMC core:
- A couple of changes to improve the support for erase/discard/trim cmds
  - Add eMMC HS400 enhanced strobe support
  - Show OCR and DSR registers in SYSFS for MMC/SD cards
  - Correct and improve busy detection logic for MMC switch (CMD6) cmds
  - Disable HPI cmds for certain broken Hynix eMMC cards
  - Allow MMC hosts to specify non-support for SD and MMC cmds
  - Some minor additional fixes
 
 MMC host:
  - sdhci: Re-works, fixes and clean-ups
  - sdhci: Add HW auto re-tuning support
  - sdhci: Re-factor code to prepare for adding support for eMMC CMDQ
  - sdhci-esdhc-imx: Fixes and clean-ups
  - sdhci-esdhc-imx: Update system PM support
  - sdhci-esdhc-imx: Enable HW auto re-tuning
  - sdhci-bcm2835: Remove driver as sdhci-iproc is used instead
  - sdhci-brcmstb: Add new driver for Broadcom BRCMSTB SoCs
  - sdhci-msm: Add support for UHS cards
  - sdhci-tegra: Improve support for UHS cards
  - sdhci-of-arasan: Update phy support for Rockchip SoCs
  - sdhci-of-arasan: Deploy enhanced strobe support
  - dw_mmc: Some fixes and clean-ups
  - dw_mmc: Enable support for erase/discard/trim cmds
  - dw_mmc: Enable CMD23 support
  - mediatek: Some fixes related to the eMMC HS400 support
  - sh_mmcif: Improve support for HW busy detection
  - rtsx_pci: Enable support for erase/discard/trim cmds
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJXnibNAAoJEP4mhCVzWIwpKIQQAM2iTx5ROuOe3/CmWEAv5phg
 XpgmuWz/R/KQH1wyDor4zEJUE5mUYpvSg9vSCByYnVwHpoNKg4R0t0OJZJSN05Z0
 njdKCtkVXlRaQitX3tiFQazkMLaQER0tRrqrHjYZYkBgr8DnSEf00aueSGshrr/p
 g/JE7Z+eGVJx6d3Lvd24NMVZYSGbVq5lY/JTbURkKR5C9OhEe5GMfUsw1M+aVhUo
 pvxeGVYuIr4WsP+c+roa6czTO8VMrsd71syLDCweWMk+GOHvaSjpzvdC7iFGAl4B
 CoN6f3LTpJGpDCBWnqp/yQMvrMsR1SKlrwOUph4XEAXZCaz5WtF8+vhQaK7gwYGO
 RiyIIh04Bup+gzY6w0Mwgsw0jAkw5ahXl6xknD58q/sPEdlKe0ATyxl0oUwDntc0
 957BtmOvChYG13Q5pW6VNef0jKW6LOU+brJKEGxtr8x9OPeCiQOBO/GCUTg3IwA5
 ohylmjS+/6G3G4bgGvfXyGvObOsdAh3RQ8g7/1pVb0hQobDhxO5PjtTqVtelfFJk
 PRdKKIWhROiNMrpVLZnL7+OLkusEQ4s0Lmq08T1dVXvV+hLITwyTyWYmBr6Kb51B
 2x3DO7PcfEyytSn3TjPjdp7Wax+19YL+tMmu2QAlXv3iHSKFAH17nLk0bPO6VOWZ
 FHzKKutm4TwZJ/fyyiqP
 =wzSC
 -----END PGP SIGNATURE-----

Merge tag 'mmc-v4.8' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - A couple of changes to improve the support for erase/discard/trim cmds
   - Add eMMC HS400 enhanced strobe support
   - Show OCR and DSR registers in SYSFS for MMC/SD cards
   - Correct and improve busy detection logic for MMC switch (CMD6) cmds
   - Disable HPI cmds for certain broken Hynix eMMC cards
   - Allow MMC hosts to specify non-support for SD and MMC cmds
   - Some minor additional fixes

  MMC host:
   - sdhci: Re-works, fixes and clean-ups
   - sdhci: Add HW auto re-tuning support
   - sdhci: Re-factor code to prepare for adding support for eMMC CMDQ
   - sdhci-esdhc-imx: Fixes and clean-ups
   - sdhci-esdhc-imx: Update system PM support
   - sdhci-esdhc-imx: Enable HW auto re-tuning
   - sdhci-bcm2835: Remove driver as sdhci-iproc is used instead
   - sdhci-brcmstb: Add new driver for Broadcom BRCMSTB SoCs
   - sdhci-msm: Add support for UHS cards
   - sdhci-tegra: Improve support for UHS cards
   - sdhci-of-arasan: Update phy support for Rockchip SoCs
   - sdhci-of-arasan: Deploy enhanced strobe support
   - dw_mmc: Some fixes and clean-ups
   - dw_mmc: Enable support for erase/discard/trim cmds
   - dw_mmc: Enable CMD23 support
   - mediatek: Some fixes related to the eMMC HS400 support
   - sh_mmcif: Improve support for HW busy detection
   - rtsx_pci: Enable support for erase/discard/trim cmds"

* tag 'mmc-v4.8' of git://git.linaro.org/people/ulf.hansson/mmc: (135 commits)
  mmc: rtsx_pci: Remove deprecated create_singlethread_workqueue
  mmc: rtsx_pci: Enable MMC_CAP_ERASE to allow erase/discard/trim requests
  mmc: rtsx_pci: Use the provided busy timeout from the mmc core
  mmc: sdhci-pltfm: Drop define for SDHCI_PLTFM_PMOPS
  mmc: sdhci-pltfm: Convert to use the SET_SYSTEM_SLEEP_PM_OPS
  mmc: sdhci-pltfm: Make sdhci_pltfm_suspend|resume() static
  mmc: sdhci-esdhc-imx: Use common sdhci_suspend|resume_host()
  mmc: sdhci-esdhc-imx: Assign system PM ops within #ifdef CONFIG_PM_SLEEP
  mmc: sdhci-sirf: Remove non needed #ifdef CONFIG_PM* for dev_pm_ops
  mmc: sdhci-s3c: Remove non needed #ifdef CONFIG_PM for dev_pm_ops
  mmc: sdhci-pxav3: Remove non needed #ifdef CONFIG_PM for dev_pm_ops
  mmc: sdhci-of-esdhc: Simplify code by using SIMPLE_DEV_PM_OPS
  mmc: sdhci-acpi: Simplify code by using SET_SYSTEM_SLEEP_PM_OPS
  mmc: sdhci-pci-core: Simplify code by using SET_SYSTEM_SLEEP_PM_OPS
  mmc: Change the max discard sectors and erase response when HW busy detect
  phy: rockchip-emmc: Wait even longer for the DLL to lock
  phy: rockchip-emmc: Be tolerant to card clock of 0 in power on
  mmc: sdhci-of-arasan: Revert: Always power the PHY off/on when clock changes
  mmc: sdhci-msm: Add support for UHS cards
  mmc: sdhci-msm: Add set_uhs_signaling() implementation
  ...
2016-07-31 21:36:58 -04:00
Linus Torvalds 468fc7ed55 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Unified UDP encapsulation offload methods for drivers, from
    Alexander Duyck.

 2) Make DSA binding more sane, from Andrew Lunn.

 3) Support QCA9888 chips in ath10k, from Anilkumar Kolli.

 4) Several workqueue usage cleanups, from Bhaktipriya Shridhar.

 5) Add XDP (eXpress Data Path), essentially running BPF programs on RX
    packets as soon as the device sees them, with the option to mirror
    the packet on TX via the same interface.  From Brenden Blanco and
    others.

 6) Allow qdisc/class stats dumps to run lockless, from Eric Dumazet.

 7) Add VLAN support to b53 and bcm_sf2, from Florian Fainelli.

 8) Simplify netlink conntrack entry layout, from Florian Westphal.

 9) Add ipv4 forwarding support to mlxsw spectrum driver, from Ido
    Schimmel, Yotam Gigi, and Jiri Pirko.

10) Add SKB array infrastructure and convert tun and macvtap over to it.
    From Michael S Tsirkin and Jason Wang.

11) Support qdisc packet injection in pktgen, from John Fastabend.

12) Add neighbour monitoring framework to TIPC, from Jon Paul Maloy.

13) Add NV congestion control support to TCP, from Lawrence Brakmo.

14) Add GSO support to SCTP, from Marcelo Ricardo Leitner.

15) Allow GRO and RPS to function on macsec devices, from Paolo Abeni.

16) Support MPLS over IPV4, from Simon Horman.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
  xgene: Fix build warning with ACPI disabled.
  be2net: perform temperature query in adapter regardless of its interface state
  l2tp: Correctly return -EBADF from pppol2tp_getname.
  net/mlx5_core/health: Remove deprecated create_singlethread_workqueue
  net: ipmr/ip6mr: update lastuse on entry change
  macsec: ensure rx_sa is set when validation is disabled
  tipc: dump monitor attributes
  tipc: add a function to get the bearer name
  tipc: get monitor threshold for the cluster
  tipc: make cluster size threshold for monitoring configurable
  tipc: introduce constants for tipc address validation
  net: neigh: disallow transition to NUD_STALE if lladdr is unchanged in neigh_update()
  MAINTAINERS: xgene: Add driver and documentation path
  Documentation: dtb: xgene: Add MDIO node
  dtb: xgene: Add MDIO node
  drivers: net: xgene: ethtool: Use phy_ethtool_gset and sset
  drivers: net: xgene: Use exported functions
  drivers: net: xgene: Enable MDIO driver
  drivers: net: xgene: Add backward compatibility
  drivers: net: phy: xgene: Add MDIO driver
  ...
2016-07-27 12:03:20 -07:00
Linus Torvalds 75a442efb1 Merge branch 'for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
 "libata saw quite a bit of activities in this cycle:

   - SMR drive support still being worked on

   - bug fixes and improvements to misc SCSI command emulation

   - some low level driver updates"

* 'for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (39 commits)
  libata-scsi: better style in ata_msense_*()
  AHCI: Clear GHC.IS to prevent unexpectly asserting INTx
  ata: sata_dwc_460ex: remove redundant dev_err call
  ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_*
  libata: remove ATA_PROT_FLAG_DATA
  libata: remove ata_is_nodata
  ata: make lba_{28,48}_ok() use ATA_MAX_SECTORS{,_LBA48}
  libata-scsi: minor cleanup for ata_scsi_zbc_out_xlat
  libata-scsi: Fix ZBC management out command translation
  libata-scsi: Fix translation of REPORT ZONES command
  ata: Handle ATA NCQ NO-DATA commands correctly
  libata-eh: decode all taskfile protocols
  ata: fixup ATA_PROT_NODATA
  libsas: use ata_is_ncq() and ata_has_dma() accessors
  libata: use ata_is_ncq() accessors
  libata: return boolean values from ata_is_*
  libata-scsi: avoid repeated calculation of number of TRIM ranges
  libata-scsi: reject WRITE SAME (16) with n_block that exceeds limit
  libata-scsi: rename ata_msense_ctl_mode() to ata_msense_control()
  libata-scsi: fix D_SENSE bit relection in control mode page
  ...
2016-07-26 14:39:40 -07:00
Douglas Anderson 95cc46fee6 phy: rockchip-emmc: Wait even longer for the DLL to lock
Two times out of 2000 reboots I ran into the error message
"rockchip_emmc_phy_power: dllrdy timeout".  Presumably there is some
corner case where the DLL just takes a little longer to timeout.  Let's
give it even more time to handle these corner cases.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:38:00 +02:00
Douglas Anderson 4e2ea67086 phy: rockchip-emmc: Be tolerant to card clock of 0 in power on
It's possible that there are some reasons to turn the PHY on while the
clock is 0.  In this case we just won't wait for the DLL to lock.

This is a bit of a stopgap until we figure out exactly when we're
supposed to wait for the DLL to lock and when we're supposed to power
cycle the PHY.

Note: this patch should help with suspend/resume where the system will
try to turn the PHY back on when the clock is 0.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:38:00 +02:00
Douglas Anderson 52c0624a10 phy: rockchip-emmc: Set phyctrl_frqsel based on card clock
The "phyctrl_frqsel" is described in the Arasan datasheet [1] as "the
frequency range of DLL operation".  Although the Rockchip variant of
this PHY has different ranges than the reference Arasan PHY it appears
as if the functionality is similar.  We should set this phyctrl field
properly.

Note: as per Rockchip engineers, apparently the "phyctrl_frqsel" is
actually only useful in HS200 / HS400 modes even though the DLL itself
it used for some purposes in all modes.  See the discussion in the
earlier change in this series: ("mmc: sdhci-of-arasan: Always power the
PHY off/on when clock changes").  In any case, it shouldn't hurt to set
this always.

Note that this change should allow boards to run at HS200 / HS400 speed
modes while running at 100 MHz or 150 MHz.  In fact, running HS400 at
150 MHz (giving 300 MB/s) is the main motivation of this series, since
performance is still good but signal integrity problems are less
prevelant at 150 MHz.

[1]: https://arasan.com/wp-content/media/eMMC-5-1-Total-Solution_Rev-1-3.pdf

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:20 +02:00
Douglas Anderson 352051ef1f phy: rockchip-emmc: Minor code cleanup in rockchip_emmc_phy_power_on/off()
There's no reason to store the return value of rockchip_emmc_phy_power()
in a variable nor to check it.  Just return it.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:20 +02:00
Douglas Anderson 49f9ccd888 phy: rockchip-emmc: Increase lock time allowance
Previous PHY code waited a fixed amount of time for the DLL to lock at
power on time.  Unfortunately, the time for the DLL to lock is actually
a bit more dynamic and can be longer if the card clock is slower.

Instead of waiting a fixed 30 us, let's now dynamically wait until the
lock bit gets set.  We'll wait up to 10 ms which should be OK even if
the card clock is at the super slow 100 kHz.

On its own, this change makes the PHY power on code a little more
robust.  Before this change the PHY was relying on the eMMC code to make
sure the PHY was only powered on when the card clock was set to at least
50 MHz before, though this reliance wasn't documented anywhere.

This change will be even more useful in future changes where we actually
need to be able to wait for a DLL lock at slower clock speeds.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:16 +02:00
Brian Norris 675f65c444 phy: rockchip-emmc: reindent the register definitions
Some of the spacing was wrong (spaces instead of tabs), and due to
longer entries added later, the columns weren't aligned. Let's get
everything consistent.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:16 +02:00
Brian Norris 36b5d46026 phy: rockchip-emmc: configure default output tap delay
The output tap delay controls helps maintain the hold requirements for
eMMC. The exact value is dependent on the SoC and other factors, though
it isn't really an exact science. But the default of 0 is not very good,
as it doesn't give the eMMC much hold time, so let's bump up to 4
(approx 90 degree phase?). If we need to configure this any further
(e.g., based on board or speed factors), we may need to consider a
device tree representation.

Suggested-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:15 +02:00
Shawn Lin d74857720d phy: rockchip-emmc: configure frequency range and drive impedance
Signal integrity analysis has suggested we set these values. Do this in
power_on(), so that they get reconfigured after suspend/resume.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:15 +02:00
Shawn Lin 4d54a25ba5 phy: rockchip-emmc: give DLL some extra time to be ready
According to the databook, 10.2us is the max time for dll to be ready to
work. However in testing, some chips need 20us for dll to be ready. This
patch adds some extra margin for dllrdy to be ready, fixing our
-ETIMEDOUT issues.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:14 +02:00
Greg Kroah-Hartman ca2b6faeb9 phy: for 4.8 -rc1
*) Add a new phy_ops for setting the phy mode
 *) Add a new phy driver for DA8xx SoC USB PHY
 *) Minor fixes and cleanups
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJXel4TAAoJEA5ceFyATYLZrXYP/1RcGZCktZxW43MQNNtGUjlR
 4jhc36FlVQ+9Lrlp5ewLW6RPl/Z1D2ImYyTvxsWDRZhlj0T0N7F/AgwFWQXKPiKs
 l5opMvBL04dIy98M0Za68sr9SlPNxTZNyirejVm8oMtv2vA0+b18/YDZM2YFbt0N
 dTzVfJqvqrvFMSg2avVcTjARRQBnT5zNnKEjniDetVCSZ2yaD+yabrZ3OLh2JhZX
 AJdjvvxkOAVHqF1hBB1D/cNpf5N6fjgUu+xTI8MDDkYf81A3mOm8w7MjYDpusLjO
 Ix/AcuJqzg2216BzdyGF7zzg4wfgl3WmITXqUy+G9wuW4JPOZmeakTfppErAJPHr
 Quw1fIl0Je6l3xuSGGKIyPy3L4v5YvJeeZkhDzxATzhstKgk1fL4KJBN4lEjdRcs
 SeME8e1GVTiKFjFy4RTiP8bGBuUYRSHZVhLK7eeqcyE0hzQUD2LEyGQgLaj1s86k
 U+zFQoTNJwSenZsWINb/Skzwjg2E3kqEWsTbgLNDy02llvBaEykfVdjh6qk+4J5x
 1GbywhJiba5x/1G1v5M4U2A1Fnw3u4Rhb5k64Qqur2mWNIDEUc85M0G8+m6z9io3
 LqRitKkXxP6t/sp7KK3YAas6WnD5jRALgZpRBCsCYXW2lbTGb9Odi54LH4165xMP
 UFBoZLM1VDnK1Ja5fLbX
 =5bMI
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-testing

Kishon writes:

phy: for 4.8 -rc1

*) Add a new phy_ops for setting the phy mode
*) Add a new phy driver for DA8xx SoC USB PHY
*) Minor fixes and cleanups

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-14 12:03:50 +09:00
David S. Miller 30d0844bdc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en.h
	drivers/net/ethernet/mellanox/mlx5/core/en_main.c
	drivers/net/usb/r8152.c

All three conflicts were overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-06 10:35:22 -07:00
Greg Kroah-Hartman c318a821b9 Merge 4.7-rc6 into usb-next
We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-04 08:19:21 -07:00
Yoshihiro Shimoda c14f8a4032 phy: rcar-gen3-usb2: fix mutex_lock calling in interrupt
This patch fixes an issue that the extcon_set_cable_state_() is possible
to cause "BUG: scheduling while atomic" because this driver calls
extcon_set_cable_state_() in the interrupt handler and mutex_lock()
is possible to be called by like the following call trace.
So, this patch adds a workqueue function to resolve this issue.

[    9.706504] BUG: scheduling while atomic: systemd-journal/25893/0x00010303
[    9.714569] Modules linked in:
[    9.717629] CPU: 0 PID: 25893 Comm: systemd-journal Not tainted 4.7.0-rc4+ #86
[    9.724844] Hardware name: Renesas Salvator-X board based on r8a7795 (DT)
[    9.731624] Call trace:
[    9.734077] [<ffff0000080889f0>] dump_backtrace+0x0/0x1a8
[    9.739470] [<ffff000008088bac>] show_stack+0x14/0x20
[    9.744520] [<ffff000008348ab4>] dump_stack+0x94/0xb8
[    9.749568] [<ffff0000080da18c>] __schedule_bug+0x44/0x58
[    9.754966] [<ffff0000087c6394>] __schedule+0x4e4/0x598
[    9.760185] [<ffff0000087c6484>] schedule+0x3c/0xa8
[    9.765057] [<ffff0000087c6928>] schedule_preempt_disabled+0x20/0x38
[    9.771408] [<ffff0000080f20dc>] mutex_optimistic_spin+0x18c/0x1d0
[    9.777583] [<ffff0000087c7ef0>] __mutex_lock_slowpath+0x38/0x140
[    9.783669] [<ffff0000087c803c>] mutex_lock+0x44/0x60
[    9.788717] [<ffff00000834ca48>] kobject_uevent_env+0x250/0x500
[    9.794634] [<ffff0000086ae8c0>] extcon_update_state+0x220/0x298
[    9.800634] [<ffff0000086ae9d8>] extcon_set_cable_state_+0x78/0x88
[    9.806812] [<ffff000008376004>] rcar_gen3_device_recognition+0x5c/0xe0
[    9.813420] [<ffff0000083761bc>] rcar_gen3_phy_usb2_irq+0x3c/0x48
[    9.819509] [<ffff0000080fae94>] handle_irq_event_percpu+0x94/0x140
[    9.825769] [<ffff0000080faf88>] handle_irq_event+0x48/0x78
[    9.831334] [<ffff0000080fe620>] handle_fasteoi_irq+0xb8/0x1b0
[    9.837162] [<ffff0000080fa3c4>] generic_handle_irq+0x24/0x38
[    9.842900] [<ffff0000080fa6fc>] __handle_domain_irq+0x5c/0xb8
[    9.848727] [<ffff000008081520>] gic_handle_irq+0x58/0xb0

Reported-by: Simon Horman <horms@verge.net.au>
Fixes: 2b38543c8d ("phy: rcar-gen3-usb2: add extcon support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:39 +05:30
Sudip Mukherjee d33fb008e4 phy: rockhip-usb: use devm_add_action_or_reset()
If devm_add_action() fails we are explicitly calling the cleanup to free
the resources allocated.  Lets use the helper devm_add_action_or_reset()
and return directly in case of error, as we know that the cleanup function
has been already called by the helper if there was any error.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:39 +05:30
Hans de Goede 91d96f06a7 phy-sun4i-usb: Add workaround for missing Vbus det interrupts on A31
The A31 companion pmic (axp221) does not generate vbus change interrupts
when the board is driving vbus, so we must poll when using the pmic for
vbus-det _and_ we're driving vbus.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:39 +05:30
Peter Griffin 956bc8696e phy: phy-qcom-ufs-qmp-14nm: Remove site specific OOM error message
kzalloc will issue its own error message including a dump_stack()
so remote the site specific message.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:39 +05:30
Peter Griffin b4bd4b2c47 phy: phy-qcom-ufs-qmp-20nm: Remove site specific OOM error message
kzalloc will issue its own error message including a dump_stack()
so remote the site specific message.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:39 +05:30
Heiko Stuebner a0da445aab phy: rockchip-usb: should be a child device of the GRF
The usb-phy is fully enclosed in the general register files (GRF).
Therefore as seen from the device-tree it shouldn't be a separate
platform-device but instead a sub-device of the GRF - using the
simply-mfd mechanism.

As the usb-phy is part of the kernel for some releases now, we keep
the old (and now deprecated) binding for compatibility purposes.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:39 +05:30
David Lechner f2e600411b phy: da8xx-usb: new driver for DA8xx SoC USB PHY
This is a new phy driver for the SoC USB controllers on the TI DA8xx
family of microcontrollers. The USB 1.1 PHY is just a simple on/off.
The USB 2.0 PHY also allows overriding the VBUS and ID pins.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:39 +05:30
Kishon Vijay Abraham I 6f7d2346cb Add new set_mode phy ops
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJXelfSAAoJEA5ceFyATYLZNZ4QAIyGsCDp9OyWFbstr+iR7+JG
 TFIlrRvtCX2AdG0C0/cX5XWDWji4vmWlnjmyKtjQqCwe+LmRXUOzbHgayhmzm2XK
 8HgDbj0YUHUZLAK4yoZ3S5un+kG/tyPJSKnLfZj3yfzPjslQQzPSDCcqdULtPMi1
 bgsvCM8plEgP7Bl6STMShR6WJCHTXP6/p1RsBgnmEZ74yMkSri5Usxlrd3oOmql6
 2rREqWhrmVCQaGcQfLLNmFjU8vjI2ow54VPBRxnI/ZbNsmu/c5b0EpQ6SQVOiX1q
 QAsf+YiaR+sL4/orHeEXTWO/J3qtSoIGHSo6ypnlKN7A/29taXqHm7G6AqYmchN2
 zbWXCnNAcL8r7z4xHMovjks5FLRMTsN1IQSX3X6cvp9x/RDdhmEXjDyxoJdQHVh5
 cT0R2oDQ6qdAemT34HW4/F7oE6ft2v6amQPY1HChIi2KGT5mnf7qc79Ma5++aEq5
 +qPmAXBTkhz0uowZ1MH996XfuYzIoU37qRsB4IQX3zLEM4SFt5De/7QX+BrpiyY9
 /V3tUA/aaHBqoGvIJmggty71V0HDzmjIqtmR+z2ALS2IEavnv7lrfsURh0Wi7uKb
 Wq8U0l6j/LKMrMqmGIGSl/POYrn7i/DVzAAQnxFA2AHQHKOqC8noOn3jQJeWHByC
 xuRjNTQUfynjx0IXenk0
 =lBOF
 -----END PGP SIGNATURE-----

Merge tag 'phy-set-mode-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into next

Add new set_mode phy ops

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-07-04 18:07:25 +05:30
David Lechner 300eb0139c phy: Add set_mode callback
The initial use for this is for PHYs that have a mode related to USB OTG.
There are several SoCs (e.g. TI OMAP and DA8xx) that have a mode setting
in the USB PHY to override OTG VBUS and ID signals.

Of course, the enum can be expaned in the future to include modes for
other types of PHYs as well.

Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: David Lechner <david@lechnology.com>
2016-07-04 17:19:22 +05:30
Kishon Vijay Abraham I 65048f4dd9 phy: xgene: rename "enum phy_mode" to "enum xgene_phy_mode"
No functional change. Rename "enum phy_mode" to
"enum xgene_phy_mode" in xgene phy driver in
preparation for adding set_mode callback in
phy core.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Loc Ho <lho@apm.com>
2016-07-04 17:19:21 +05:30
Linus Torvalds 0d064a7b9c - Final patches fixing Reset API change
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJXdkJCAAoJEFGvii+H/Hdh4fIP/0U47cICszk6AkV2P3q3yRc6
 RyIfjBddVxAnNnUQoJAkyDnZmZnCH33wMa3NG8BlXCrtPUSMoUkG78RIN6mWjgp6
 pooaXBylqIiU4ZoyQVXvxTQZhM7u/ox+2InrXOeZXirkJvRY4GzwsNWtdhzclHq2
 iM86K1cfaIPdJ4d3y7WF6/5DOsdMiYQUvmtxLEYTKgJgGvkgM/9I7Ws8vk3R0lXk
 wO8EItxIZecAIEwfwI8HgYCoyPctevMSnXMTWAJTF+5m3Wprhhv0lEjCTEBHbmJb
 kkrAr86tNj4nNVG9pQCDYL/XX0Zpub0vTA4+mPL5/WTrVpI/RRYlJXKIlR25vvlN
 wlYRrY4mE4gKFJh7t6DhQiHdrrQcoWPymKZ7CSF2GZvc65xwBa0u3ZkeLhurgj0N
 C8Zj7QRIqHfP4O8JDMRvuToWJWtc8sfSvh2Y9szkevwNjZjO9INSM/hStfJZ1S0E
 EnZIcHSKehjdiLHiMgyWGRB3Fq24u41u8aVAGvCfCsSe7CZKYKzyAHEQSC7solSJ
 GmbJ6F2gB65v62rNReZeP9NCc25fex7ZkdYMr6XYqrSh7GoxtF+9VPHEvYXs5BVK
 +rVVCOvuvqSy4+oQ+N/0grLHIThqSVbAusXBSLFPykHO7R4Z30f3wIiSPTq8m2VW
 c5qwGR4ceOBRrX8fQw0c
 =PpU9
 -----END PGP SIGNATURE-----

Merge tag 'mfd-fixes-4.7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull more MFD fixes from Lee Jones:
 "Apologies for missing these from the first pull request.

  Final patches fixing Reset API change"

* tag 'mfd-fixes-4.7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  usb: dwc3: st: Use explicit reset_control_get_exclusive() API
  phy: phy-stih407-usb: Use explicit reset_control_get_exclusive() API
  phy: miphy28lp: Inform the reset framework that our reset line may be shared
2016-07-01 15:17:16 -07:00
Linus Torvalds 0232b23d08 USB and PHY fixes for 4.7-rc6
Here are a number of small USB and PHY driver fixes for 4.7-rc6.
 
 Nothing major here, all are described in the shortlog below.  All have
 been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iFYEABECABYFAld2ljcPHGdyZWdAa3JvYWguY29tAAoJEDFH1A3bLfspN+sAn28Z
 +GbDzyY5XwZ7Qs5/5uPYoGONAKCObDpgZr1A+/EMvDd57gfHWmFqTw==
 =uYl3
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB and PHY fixes from Greg KH:
 "Here are a number of small USB and PHY driver fixes for 4.7-rc6.

  Nothing major here, all are described in the shortlog below.  All have
  been in linux-next with no reported issues"

* tag 'usb-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: don't free bandwidth_mutex too early
  USB: EHCI: declare hostpc register as zero-length array
  phy-sun4i-usb: Fix irq free conditions to match request conditions
  phy: bcm-ns-usb2: checking the wrong variable
  phy-sun4i-usb: fix missing __iomem *
  phy: phy-sun4i-usb: Fix optional gpios failing probe
  phy: rockchip-dp: fix return value check in rockchip_dp_phy_probe()
  phy: rcar-gen3-usb2: fix unexpected repeat interrupts of VBUS change
  usb: common: otg-fsm: add license to usb-otg-fsm
2016-07-01 09:18:17 -07:00
Lee Jones f5f35830fb phy: phy-stih407-usb: Use explicit reset_control_get_exclusive() API
We're making all reset line users specify whether their lines are
shared with other IP or they operate them exclusively.  In this case
the line is exclusively used only by this IP, so use the *_exclusive()
API accordingly.

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-07-01 10:52:09 +01:00
Lee Jones 8293c8a3bb phy: miphy28lp: Inform the reset framework that our reset line may be shared
On the STiH410 B2120 development board the MiPHY28lp shares its reset
line with the Synopsys DWC3 SuperSpeed (SS) USB 3.0 Dual-Role-Device
(DRD).  New functionality in the reset subsystems forces consumers to
be explicit when requesting shared/exclusive reset lines.

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-07-01 10:51:30 +01:00
Linus Torvalds 4aa34ce3c1 - Bug Fixes
- Use new reset_*_get_shared() variant to prevent reset line obtainment failure
     - Fixes: 0b52297 ("reset: Add support for shared reset controls")
   - Fix unintentional switch() fall-through into error path
   - Fix uninitialised variable compiler warning
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJXdMAeAAoJEFGvii+H/Hdh2JsQAJ5ez/+WlfVY5enmZTCPTfjv
 YAZOhGuKyK1RcNKVmhRTXKDDlEQtbzX01AG73UOsMuR6Gjfq4q+lsK88ybE6Y3MS
 YuIBa0TXicyywbLhAh4bCqbImFQZ2MhU07mJWn5n6qX1LwrxncKN5MdRj2DKzldv
 s9AG1EKUKf/83k6kuODaP8dXutvWPEGKYKXnq9MQPBliU2j7DT7mfEp3jLGlJvXy
 UkW2uq1RAhu27fe7TKVefatXLIyqo74fi3fuHVZpWfPsoUTFlQd3RzeFL7Q/orWH
 JqiUk55xAbsmtkEeKNbpph1gPyR1pzKKHiNvSfRt/yIjsxOVPGZQZA2y4OpIcOKV
 mbxPUrurhcdI+sK2+7JpcbjKYJpCsGgCXtwbLubLcgler+RatmFWOB8+ayH32eVC
 DELYFtc80YBaDS+2KrgY4la1Mk1agbfDpyhq4Vp5uiRZFhQyldd1XrPPQssMJNc+
 Zme+LRu+EQiullbHDRb6cb0dnV2Tcek4IjI1CsNA6UMAMLcVb8IZ1gX39vWr+BNt
 ZWxxoBOcskPJ/t3h4ddPbuMzSA0ctBkJct9bdjg+bpZeA0aJ46lTQCJk4fZfjViu
 YcDgO8/ZVaDLz5f4f44xJ+Hwnzxr2fezBUirD3UtPvs57BSVnFbHMBXUdy0NCBHk
 mZi1lFOjy7eKuW1+kbrx
 =mo7m
 -----END PGP SIGNATURE-----

Merge tag 'mfd-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD fixes from Lee Jones:
 "Contained are some standard fixes and unusually an extension to the
  Reset API.  Some of those changes are required to fix a bug introduced
  in -rc1, which introduces extra 'reset line checks' i.e. whether the
  line is shared or not.  If a line is shared and the new *_shared() API
  is not used, the request fails with an error.  This breaks USB in v4.7
  for ST's platforms.

  Admittedly, there are some patches contained in our (MFD/Reset)
  immutable branch which are not true -fixes, but there isn't anything I
  can do about that.  Rest assured though, there aren't any API
  'changes'.  Everything is the same from the consumer's perspective.

   - Use new reset_*_get_shared() variant to prevent reset line
     obtainment failure (Fixes commit 0b52297f2288: "reset: Add support
     for shared reset controls")

   - Fix unintentional switch() fall-through into error path

   - Fix uninitialised variable compiler warning"

* tag 'mfd-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: da9053: Fix compiler warning message for uninitialised variable
  mfd: max77620: Fix FPS switch statements
  phy: phy-stih407-usb: Inform the reset framework that our reset line may be shared
  usb: dwc3: st: Inform the reset framework that our reset line may be shared
  usb: host: ehci-st: Inform the reset framework that our reset line may be shared
  usb: host: ohci-st: Inform the reset framework that our reset line may be shared
  reset: TRIVIAL: Add line break at same place for similar APIs
  reset: Supply *_shared variant calls when using *_optional APIs
  reset: Supply *_shared variant calls when using of_* API
  reset: Ensure drivers are explicit when requesting reset lines
  reset: Reorder inline reset_control_get*() wrappers
2016-06-30 09:44:34 -07:00
David S. Miller ee58b57100 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of overlapping changes, except the packet scheduler
conflicts which deal with the addition of the free list parameter
to qdisc_enqueue().

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 05:03:36 -04:00
Lee Jones 9278e707f4 phy: phy-stih407-usb: Inform the reset framework that our reset line may be shared
On the STiH410 B2120 development board the ports on the Generic PHY
share their reset lines with each other.  New functionality in the
reset subsystems forces consumers to be explicit when requesting
shared/exclusive reset lines.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-30 07:44:22 +01:00
Greg Kroah-Hartman 1a34c4d0ae phy: for 4.7-rc5
*) Fix in sun4i-usb phy driver to properly handle the return value of
    gpiod_to_irq
 *) Fix a sparse warning in sun4i-usb phy driver
 *) Fix bcm-ns-usb2 phy driver to check the correct variable
 *) Fix spurious interrupts during VBUS change in rcar-gen3-usb2 phy
    driver
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJXaoNJAAoJEA5ceFyATYLZNaMP/jvuMm85UWMTU/G21lULLv3D
 XpTHWdVd0s21IyuR7eFiGpo8pA0AyluCmcB+ZzNZz1cXZWvS9fZNJgKwB/L0hYlZ
 uvnbD5d7WdAS981izQ+ke6EeL5lZ+I0RYtP64yoSocVu50Fpmh3dqPkXJNjYttk/
 ch/rX+hgYHB7Pm8mmhJ/kI1KjyrZVzCIUB0A7C5w+74x4uDNN4odXRUXpdy+ZLmd
 ZAktvqAOpCnwQcK269Sm3AzhvPeelG8fyaeB7wHabq5duiUnZK+a8vpdV43548Gp
 +nLZPlyhfPBKLZXLKPv1Sml9rjf452xTQi+zYfY62HLb0saSHWJ85eUWlydqbkg4
 TtpIcfNQqNuaso8BTrqoMQ/Mnn7ryjPhqi7BonBhLrVbpCe05Nd5Qy0n4xNyjtLv
 tx+kgWzYq5ROH+URKEqzKhp82lHXL/IX86w0UetvhUjlsk3QxvncE/Ta34cJct0Z
 68sPGWL74MAP1MCvQdZKkZYafyvUVzsdBCV/asaIY5oEDD9MD8yaj4fCgAW9wKyR
 M/oIJKyI95uajmdmvkyuzA3FGXZaM+21eaWIUGWSJolV/CIsg8QlFVd1C8yrHLvn
 UJ/vCm1PC3EOkyHttCdDvMu57Ab3HHS36D0Uq7SOCUhDyY1WPmhyNUb2it02xN45
 0Mpw9EYkstUILswvN/DG
 =kUtK
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus

Kishon writes:

phy: for 4.7-rc5

*) Fix in sun4i-usb phy driver to properly handle the return value of
   gpiod_to_irq
*) Fix a sparse warning in sun4i-usb phy driver
*) Fix bcm-ns-usb2 phy driver to check the correct variable
*) Fix spurious interrupts during VBUS change in rcar-gen3-usb2 phy
   driver

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-24 17:01:43 -07:00
Hans de Goede 04e59a0211 phy-sun4i-usb: Fix irq free conditions to match request conditions
commit 5cf700ac9d ("phy: phy-sun4i-usb: Fix optional gpios failing
probe")
changed the condition under which irqs are requested, but omitted matching
changes to sun4i_usb_phy_remove(). This commit fixes this.

Fixes: 5cf700ac9d ("phy: phy-sun4i-usb: Fix optional gpios failing probe")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-22 11:33:46 +05:30
Felipe Balbi 5a8d651a2b usb: gadget: move gadget API functions to udc-core
instead of defining all functions as static inlines,
let's move them to udc-core and export them with
EXPORT_SYMBOL_GPL, that way we can make sure that
only GPL drivers will use them.

As a side effect, it'll be nicer to add tracepoints
to the gadget API.

While at that, also fix Kconfig dependencies to
avoid randconfig build failures.

Acked-By: Sebastian Reichel <sre@kernel.org>
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 10:38:34 +03:00
Dan Carpenter 6c081ff6fd phy: bcm-ns-usb2: checking the wrong variable
We intended to test "usb2->phy" here instead of "dev".

Fixes: d3feb40673 ('phy: bcm-ns-usb2: new driver for USB 2.0 PHY on Northstar')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-17 19:02:08 +05:30
Ben Dooks d99cb37828 phy-sun4i-usb: fix missing __iomem *
Fix the missing __iomem attribute in sun4i_usb_phy_write()
function. This fixes the following sparse warnings:

drivers/phy/phy-sun4i-usb.c:178:39: warning: incorrect type in initializer (different address spaces)
drivers/phy/phy-sun4i-usb.c:178:39:    expected void *phyctl
drivers/phy/phy-sun4i-usb.c:178:39:    got void [noderef] <asn:2>*
drivers/phy/phy-sun4i-usb.c:185:17: warning: incorrect type in argument 2 (different address spaces)
drivers/phy/phy-sun4i-usb.c:185:17:    expected void volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:185:17:    got void *phyctl
drivers/phy/phy-sun4i-usb.c:189:24: warning: incorrect type in argument 1 (different address spaces)
drivers/phy/phy-sun4i-usb.c:189:24:    expected void const volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:189:24:    got void *phyctl
drivers/phy/phy-sun4i-usb.c:196:17: warning: incorrect type in argument 2 (different address spaces)
drivers/phy/phy-sun4i-usb.c:196:17:    expected void volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:196:17:    got void *phyctl
drivers/phy/phy-sun4i-usb.c:199:24: warning: incorrect type in argument 1 (different address spaces)
drivers/phy/phy-sun4i-usb.c:199:24:    expected void const volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:199:24:    got void *phyctl
drivers/phy/phy-sun4i-usb.c:205:17: warning: incorrect type in argument 2 (different address spaces)
drivers/phy/phy-sun4i-usb.c:205:17:    expected void volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:205:17:    got void *phyctl
drivers/phy/phy-sun4i-usb.c:208:24: warning: incorrect type in argument 1 (different address spaces)
drivers/phy/phy-sun4i-usb.c:208:24:    expected void const volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:208:24:    got void *phyctl
drivers/phy/phy-sun4i-usb.c:210:17: warning: incorrect type in argument 2 (different address spaces)
drivers/phy/phy-sun4i-usb.c:210:17:    expected void volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:210:17:    got void *phyctl
drivers/phy/phy-sun4i-usb.c:212:24: warning: incorrect type in argument 1 (different address spaces)
drivers/phy/phy-sun4i-usb.c:212:24:    expected void const volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:212:24:    got void *phyctl
drivers/phy/phy-sun4i-usb.c:214:17: warning: incorrect type in argument 2 (different address spaces)
drivers/phy/phy-sun4i-usb.c:214:17:    expected void volatile [noderef] <asn:2>*addr
drivers/phy/phy-sun4i-usb.c:214:17:    got void *phyctl

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-17 18:56:00 +05:30
Quentin Schulz 5cf700ac9d phy: phy-sun4i-usb: Fix optional gpios failing probe
The interrupt 0 is not a valid interrupt number. In the event where the
retrieval of the vbus-det gpio would return null, the gpiod_to_irq
callback would return 0, while the current code makes the assumption
that it is a valid interrupt, and would go on calling request_irq.
Obviously, this would fail, preventing the driver from probing properly,
while the vbus and id gpios are optional.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-17 18:48:59 +05:30
Wei Yongjun 075adb8046 phy: rockchip-dp: fix return value check in rockchip_dp_phy_probe()
In case of error, the function devm_kzalloc() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-17 18:44:24 +05:30
Yoshihiro Shimoda 6762925df4 phy: rcar-gen3-usb2: fix unexpected repeat interrupts of VBUS change
This patch fixes an issue that the driver is possible to cause
unexpected repeat interrupts if a board condition is wrong
(e.g. even if the ID pin is as function, a board supplies the VBUS.)

The reason why unexpected repeat interrupts happen is:
 1) The driver changed the mode to function if it detected the ID pin
    is high and the VBUS is high.
 2) After the driver changed function mode, it disabled the "VBUS control"
    feature. Then, the VBUS signal will be low.
 3) Since the VBUS change interruption happened, the driver checked
    the ID pin and VBUS.
 4) Since VBUS was low, the driver changed the mode to host and enabled
    the "VBUS control" feature. Then the VBUS signal will be high.
 5) Since the VBUS change interruption happened, the driver did 1) above.

So, this patch modified the condition in rcar_gen3_device_recognition()
to check the ID pin only.

Fixes: 1114e2d (phy: rcar-gen3-usb2: change the mode to OTG on the combined channel)
Cc: <stable@vger.kernel.org> # v4.5+
Reported-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-17 18:25:48 +05:30
Yendapally Reddy Dhananjaya Reddy 024812889a phy: Add SATA3 PHY support for Broadcom NSP SoC
This patch adds support for Broadcom NSP SATA3 PHY in existing
Broadcom SATA PHY driver.

Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-16 16:24:55 -04:00
Pramod Kumar 4484f730b3 phy: Add Northstar2 PCI Phy support
Add PCI Phy support for Broadcom Northstar2 SoCs.  This driver uses the
interface from the iproc mdio mux driver to enable the devices
respective phys.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jon Mason <jonmason@broadcom.com>
Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-10 23:24:54 -07:00
Greg Kroah-Hartman e4600d5632 phy: for 4.7-rc
*) Fix compiler warning in exynos-mipi-video
 *) Fix in ti-pipe3 PHY to program the DPLL
    even if it was already locked
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJXWnWXAAoJEA5ceFyATYLZuPAP/0V/XbSQYq+lwOsSIgAN0q81
 gPf14fDjg/i8sLl5U8t632LCE93xB+eHukVaka/XA5Ri2kwVP+SyErJIw5rcqxmb
 HdEBY+8xw4uAS0oEr4rgbL/BBJMW5zl/+IeFL+VaUSH0uAW25hrNGGugnCOaFqNC
 zcwGJwYBt6w6i2g6L+Y59K/TslPRw/n/SX0e29op/eyssmLb6lgGVR8icANqz+rT
 CvgnghnRW8ljX4eJjQcp4WvVQcZRcHqNjX0jibf8TVrqY8ovL56kOzBSNfAkiGNj
 S7j12kBvU+BWKY1MwtcBE6EAvQin/Wgq9Gm1mpSigqEGCk98El5XMpsyjwfZlViR
 jD/bWhMuHojuN7tIWDsb2H6/sSJL9Fu94lVhGI6sLUs3fbV27P/qbeqox0aWJ8l8
 CyN3qNTd/4HEbo/ty6w3Yzfu8WWyE8LzlVEkmnlfVEKhh3TQaX6hjiCd+lD0RNXY
 nTvWMPzgOvENhLqRlKkUHJRuUTcTRFKgUHJVe82h8qHWqFRQN+0UfcUZ0Kosd2ms
 6gZg1LQgl/TxX8QkgdVB3Z+zy2tfeqU06CecV9/pyOKkCqDUXOXqKg4SQ35AY06Y
 PLLWCVyJhvkmW4ol35Atv9guRXrHZIyLEomhR4Qx5rzxxj1CekoJYVQr8D7ctwmV
 H8jLjQKScFW3GZscTozS
 =AmRN
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-4.7-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus

Kishon writes:

phy: for 4.7-rc

*) Fix compiler warning in exynos-mipi-video
*) Fix in ti-pipe3 PHY to program the DPLL
   even if it was already locked

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-10 23:06:21 -07:00
Roger Quadros 31b2a32f70 phy: ti-pipe3: Program the DPLL even if it was already locked
If bootloader has set a wrong DPLL then we must trash those values
and re-program it anyways. This fixes USB3 devices not being enumerated
on beagle-x15 if usb was started in u-boot.

We don't re-program SATA DPLL if it is locked as it was causing
SATA failures if device was hotpluged after boot.

Reported-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-03 12:06:41 +05:30
Tony Lindgren 12b7db2bf8 usb: musb: Return error value from musb_mailbox
At least on n900 we have phy-twl4030-usb only generating cable
interrupts, and then have a separate USB PHY.

In order for musb to know the real cable status, we need to
clear any cached state until musb is ready. Otherwise the cable
status interrupts will get just ignored if the status does
not change from the initial state.

To do this, let's add a return value to musb_mailbox(), and
reset cached linkstat to MUSB_UNKNOWN on error. Sorry to cause
a bit of churn here, I should have added that already last time
patching musb_mailbox().

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-01 14:58:59 -07:00
Arnd Bergmann 06061dc63b phy: exynos-mipi-video: avoid uninitialized variable use
A rework of the exynos-mipi-video driver caused a warning
about the new __set_phy_state function potentially accessing
a variable before its initialization:

drivers/phy/phy-exynos-mipi-video.c: In function '__set_phy_state':
drivers/phy/phy-exynos-mipi-video.c:238:13: error: 'val' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  return val & data->resetn_val;
         ~~~~^~~~~~~~~~~~~~~~~~
drivers/phy/phy-exynos-mipi-video.c:235:6: note: 'val' was declared here
  u32 val;

The failure scenario here is the offset passed into a the
stub regmap_read() function that does not modify its output,
however regmap_read() can also fail for other reasons, so
adding error handling (in this case, returning zero from
is_running) seems the best solution.

Note that this warning showed up with the ARM s5pv210_defconfig,
indicating that we most likely want to either enable CONFIG_REGMAP
in that defconfig as well, or disable the phy-exynos-mipi-video
driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 97a3042f76 ("phy: exynos-mipi-video: Rewrite handling of phy registers")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-05-30 18:21:37 +05:30
Linus Torvalds 19e36ad292 USB patches for 4.7-rc1
Here's the big pull request for USB and PHY drivers for 4.7-rc1
 
 Full details in the shortlog, but it's the normal major gadget driver
 updates, phy updates, new usbip code, as well as a bit of lots of other
 stuff.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlc/0P8ACgkQMUfUDdst+ykkFQCg0kJlxIiCU1FYBZYriqo4vX3F
 9N8AoM/8nO8Y6vMpF2LWnamafYgqscTE
 =ZuCh
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big pull request for USB and PHY drivers for 4.7-rc1

  Full details in the shortlog, but it's the normal major gadget driver
  updates, phy updates, new usbip code, as well as a bit of lots of
  other stuff.

  All have been in linux-next with no reported issues"

* tag 'usb-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (164 commits)
  USB: serial: ti_usb_3410_5052: add MOXA UPORT 11x0 support
  USB: serial: fix minor-number allocation
  USB: serial: quatech2: fix use-after-free in probe error path
  USB: serial: mxuport: fix use-after-free in probe error path
  USB: serial: keyspan: fix debug and error messages
  USB: serial: keyspan: fix URB unlink
  USB: serial: keyspan: fix use-after-free in probe error path
  USB: serial: io_edgeport: fix memory leaks in probe error path
  USB: serial: io_edgeport: fix memory leaks in attach error path
  usb: Remove unnecessary space before operator ','.
  usb: Remove unnecessary space before open square bracket.
  USB: FHCI: avoid redundant condition
  usb: host: xhci-rcar: Avoid long wait in xhci_reset()
  usb/host/fotg210: remove dead code in create_sysfs_files
  usb: wusbcore: Do not initialise statics to 0.
  usb: wusbcore: Remove space before ',' and '(' .
  USB: serial: cp210x: clean up CRTSCTS flag code
  USB: serial: cp210x: get rid of magic numbers in CRTSCTS flag code
  USB: serial: cp210x: fix hardware flow-control disable
  USB: serial: option: add even more ZTE device ids
  ...
2016-05-20 21:12:25 -07:00
Linus Torvalds 4a5219edcd ARM: SoC driver updates for v4.7
Driver updates for ARM SoCs, these contain various things that touch
 the drivers/ directory but got merged through arm-soc for practical
 reasons. For the most part, this is now related to power management
 controllers, which have not yet been abstracted into a separate
 subsystem, and typically require some code in drivers/soc or arch/arm
 to control the power domains.
 
 Another large chunk here is a rework of the NVIDIA Tegra USB3.0
 support, which was surprisingly tricky and took a long time to
 get done.
 
 Finally, reset controller handling as always gets merged through here
 as well.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIVAwUAVzuXkGCrR//JCVInAQKb5BAAv2HuJ/tDjC8nNfYi0/aIt4uaRfRWE84t
 +nIpdKl/pB9AQo+HdG9WNihHs2GN44PdQRrDZ1enQX8nvTzc+dUl0AI1GZmUDpF/
 zCV2UJ39HMZcEPwf8lZk9X/JP4VOkJDM5pDgNZnnqdvkq0oqtKzmh0Kt6m2g6fIS
 LR3FVtCRxJDeT+pT+EpoN4jpW0cb3mjTWbn/a8Ar3BH07KBA3U22MVJhHArLjS30
 /aXP+AkgdvlgmBher5z44N6Qd/KOLn78rnE4LCRC4FwSCqA+qqPJQNGNblV5MHjE
 s5CYTqlihqLiGapqJ4zGBhmqj0XU/3kFVboGqYlTGjzMkOFgjddTpMdfkBUoG5oJ
 UubJ51zzSLXTcMwILGNXVls4YjJRKwNH7jeSjuMqpWrAYP4qBcMn/HQ1GqUjkNv+
 yWkheHiLDYgYkIDOBDuFUtJ7OXiVumGGxIE+r2K/sXeNI7gFcDxFExMIo11vPAWP
 WJ8ydTchyb/RUQbzhjEXhoIeCZwXQfe9s11qsyFQDCZLleWYQGs3gFKdEI1E7+BE
 oe018BSP+uaVXdaV18Ne4smwzydLAU9/ieUoO45PAUSN2reV4lWhFTlNiiiMd3Id
 IWoYwpxqP2VW9zJvLz6QGF/P+3cZ00m/1lecJCKHHPBmbUijCHWJmgLT73AdSXmR
 YIJ2UM5QMiY=
 =x+iD
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "Driver updates for ARM SoCs, these contain various things that touch
  the drivers/ directory but got merged through arm-soc for practical
  reasons.

  For the most part, this is now related to power management
  controllers, which have not yet been abstracted into a separate
  subsystem, and typically require some code in drivers/soc or arch/arm
  to control the power domains.

  Another large chunk here is a rework of the NVIDIA Tegra USB3.0
  support, which was surprisingly tricky and took a long time to get
  done.

  Finally, reset controller handling as always gets merged through here
  as well"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  arm-ccn: Enable building as module
  soc/tegra: pmc: Add generic PM domain support
  usb: xhci: tegra: Add Tegra210 support
  usb: xhci: Add NVIDIA Tegra XUSB controller driver
  dt-bindings: usb: xhci-tegra: Add Tegra210 XUSB controller support
  dt-bindings: usb: Add NVIDIA Tegra XUSB controller binding
  PCI: tegra: Support per-lane PHYs
  dt-bindings: pci: tegra: Update for per-lane PHYs
  phy: tegra: Add Tegra210 support
  phy: Add Tegra XUSB pad controller support
  dt-bindings: phy: tegra-xusb-padctl: Add Tegra210 support
  dt-bindings: phy: Add NVIDIA Tegra XUSB pad controller binding
  phy: core: Allow children node to be overridden
  clk: tegra: Add interface to enable hardware control of SATA/XUSB PLLs
  drivers: firmware: psci: make two helper functions inline
  soc: renesas: rcar-sysc: Add support for R-Car H3 power areas
  soc: renesas: rcar-sysc: Add support for R-Car E2 power areas
  soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas
  soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas
  soc: renesas: rcar-sysc: Add support for R-Car H2 power areas
  ...
2016-05-18 13:14:02 -07:00
Greg Kroah-Hartman e6c037bfca phy: for 4.7
*) Add a new PHY driver for USB2 PHY on Northstar SoC
 *) Add support for Broadcom NS2 SATA3 PHY in existing
    Broadcom SATA3 PHY driver
 *) Add support for MIPI DPHYs in Exynos5420-compatible
    (5420, 5422 and 5800) and Exynos5433 SoCs
 *) Add support for USB3 PHY on mt2701
 *) Add extcon support for Renesas R-car USB2 PHY driver
 *) Misc cleanups
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJXJNglAAoJEA5ceFyATYLZIDAP/Ror/l8L3JGyFS/EK/Z5GCGA
 cPAyMmh9RXUhFZyPdW/IAv5qlexYIP7/iv73ggeDQucCLriPo9P02Ec85FKk1X5W
 ePM35SWYfnc1698fZoNGacqgB3MFavwvaBgCGolM0vBPTglJlPQvng5Z5Sy8ajgc
 uZZMa/QRvmXpRiD7yUGBRo+l0MdYBiR8GtDEKvUj3I9uxq1CfAxDr1Cwrc9HhyMz
 5L77ddFwdlgU993cQUwZiUw5T01lFS/NQVVc3lGXs2xDKXlt2u39yMPpQB5zW7BB
 1YbCkbLCI5bzu3UeThOLJCIaHb70ZKes7GO5rbayoFeJ6a+voZpSiyM3lz6oiUqg
 B4ovB4gFwV/Zt+0rAJJgk+Z7Qx5E0GANd2iCnMrMwnRLAR+bR3m6ODIyDMlGKq5x
 DpdowbqZg7OQ/93/pQDFmkm1JrmuU1Mpy0c2z76TVCyOKudT49OSdNmZ1WA7QIsn
 RUqKNMBkxsNlkeWvIAbKORvG0MSUCtfFEAgFo6LwQ+qJpW1aF6BPmGKc5xY9VWiu
 HF83cFY5dHiMYUXHEaTenx3K1L+kYaOAJqfRmtyXBbDlCFHNR1MRJhpn1OmgON44
 u1rVBJJGlhYaKixa0v+XhmVLXcqRDIFjfAp20kgfqtIs4bfh/lBubYZiPcigR/KA
 4ztCeI2/8rpk+iJsmWO+
 =uHWi
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-testing

Kishon writes:

phy: for 4.7

*) Add a new PHY driver for USB2 PHY on Northstar SoC
*) Add support for Broadcom NS2 SATA3 PHY in existing
   Broadcom SATA3 PHY driver
*) Add support for MIPI DPHYs in Exynos5420-compatible
   (5420, 5422 and 5800) and Exynos5433 SoCs
*) Add support for USB3 PHY on mt2701
*) Add extcon support for Renesas R-car USB2 PHY driver
*) Misc cleanups

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-05-03 14:49:46 -07:00
Marek Szyprowski 71f5c63c07 phy: exynos-mipi-video: Add support for Exynos 5420 and 5433 SoCs
This patch adds support for MIPI DPHYs found in Exynos5420-compatible
(5420, 5422 and 5800) and Exynos5433 SoCs. Those SoCs differs from
earlier by different offset of MIPI DPHY registers in PMU controllers
(Exynos 5420-compatible case) or by moving MIPI DPHY reset registers to
separate system register controllers (Exynos 5433 case). In both case
also additional 5th PHY (MIPI CSIS 2) has been added.

Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:30 +05:30
Marek Szyprowski 97a3042f76 phy: exynos-mipi-video: Rewrite handling of phy registers
Controlling Exynos MIPI DPHY is done by handling 2 registers: one for
phy reset and one for enabling it. This patch moves definitions of those
2 registers to speparate exynos_mipi_phy_desc structure, which can be
defined separately for each PHY for each supported hardware variant.
This code rewrite is needed to add support for newer Exynos SoCs, which
have MIPI PHY related registers at different offsets or even different
register regions.

Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:29 +05:30
Sylwester Nawrocki 26dbadba49 phy: exynos-mipi-video: Drop support for direct access to PMU
There is no need to support access to the PMU through memory ioresource
as now access through PMU regmap should only be used.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:29 +05:30
Rafał Miłecki d3feb40673 phy: bcm-ns-usb2: new driver for USB 2.0 PHY on Northstar
Northstar is a family of SoCs used in home routers. They have USB 2.0
and 3.0 controllers with PHYs that need to be properly initialized.
This driver provides PHY init support in a generic way and can be bound
with an EHCI controller driver.
There are (just a few) registers being defined in bcma header. It's
because DMU/CRU registers will be also needed in other drivers. We will
need them e.g. in PCIe controller/PHY driver and at some point probably
in clock driver for BCM53573 chipset. By using include/linux/bcma/ we
avoid code duplication.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:28 +05:30
Stephen Boyd 444525d4f5 phy: rockhip-usb: Remove CLK_IS_ROOT
This flag is a no-op now (see commit 47b0eeb3dc "clk: Deprecate
CLK_IS_ROOT", 2016-02-02) so remove it.

Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:28 +05:30
Chunfeng Yun e1d76530d7 phy: phy-mt65xx-usb3: add support for mt2701 platform
Add a new OF device ID for mt2701

Some register settings to avoid RX sensitivity level degradation
which may arise on mt8173 platform are separated from other
platforms.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:27 +05:30
Yoshihiro Shimoda 2b38543c8d phy: rcar-gen3-usb2: add extcon support
This patch adds extcon support for otg related channel.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:26 +05:30
Yoshihiro Shimoda 6dcfd7c300 phy: rcar-gen3-usb2: Add vbus-supply to handle VBUS on/off
To handle the VBUS on/off by a regulator driver, this patch adds
regulator APIs calling in the driver and description about vbus-supply
in the rcar-gen3-phy-usb2.txt.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:25 +05:30
Yoshihiro Shimoda 801a69c787 phy: rcar-gen3-usb2: remove unnecesary struct rcar_gen3_data
Since this driver uses the struct rcar_gen3_data in struct rcar_gen3_chan
only, we can remove the rcar_gen3_data.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:25 +05:30
Anup Patel 4faee9a43d phy: Add support for NS2 SATA3 PHY in Broadcom SATA3 PHY driver
This patch adds support for Broadcom NS2 SATA3 PHY in existing
Broadcom SATA3 PHY driver.

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-30 20:12:24 +05:30
Thierry Reding 87d66f2806 phy: tegra: Add Tegra210 support
Add support for the XUSB pad controller found on Tegra210 SoCs. The
hardware is roughly the same, but some of the registers have been moved
around and the number and type of supported pads has changed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 16:44:48 +02:00
Thierry Reding 53d2a715c2 phy: Add Tegra XUSB pad controller support
Add a new driver for the XUSB pad controller found on NVIDIA Tegra SoCs.
This hardware block used to be exposed as a pin controller, but it turns
out that this isn't a good fit. The new driver and DT binding much more
accurately describe the hardware and are more flexible in supporting new
SoC generations.

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 16:44:47 +02:00
Thierry Reding 1140f7c899 phy: core: Allow children node to be overridden
In order to more flexibly support device tree bindings, allow drivers to
override the container of the child nodes. By default the device node of
the PHY provider is assumed to be the parent for children, but bindings
may decide to add additional levels for better organization.

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 16:39:39 +02:00
Anup Patel 037c418945 phy: Rename phy-brcmstb-sata driver to phy-brcm-sata driver
Currently, we have a common SATA3 PHY driver for all Broadcom
STB SoCs. This driver can be extended and re-used for Broadcom
iProc SoCs having same SATA3 PHY.

This patch renames existing Broadcom STB SATA3 PHY driver to
common Broadcom SATA3 PHY driver to share this PHY driver across
Broadcom SoCs.

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-29 14:40:07 +05:30
Simon Horman ec9e805276 phy: rcar-gen3-usb2, rcar-gen2: Use ARCH_RENESAS
Make use of ARCH_RENESAS in place of ARCH_SHMOBILE.
A now redundant dependency on OF is also dropped.

This is part of an ongoing process to migrate from ARCH_SHMOBILE to
ARCH_RENESAS the motivation for which being that RENESAS seems to be a more
appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-29 14:40:07 +05:30
Simon Horman cde7bc367f phy: rcar-gen3-usb2: add fallback binding
In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 2 and Gen 3. But beyond that its not clear what the
relationship between IP blocks might be. For example, I believe that
r8a7790 is older than r8a7791 but that doesn't imply that the latter is a
descendant of the former or vice versa.

We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.

For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme being adopted for
drivers for Renesas SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-29 14:40:07 +05:30
Simon Horman 7777cb8ba0 phy: rcar-gen2: add fallback binding
In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 2 and Gen 3. But beyond that its not clear what the
relationship between IP blocks might be. For example, I believe that
r8a7790 is older than r8a7791 but that doesn't imply that the latter is a
descendant of the former or vice versa.

We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.

For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme being adopted for
drivers for Renesas SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-29 14:40:07 +05:30
Greg Kroah-Hartman ce15bda101 usb: changes for v4.7 merge window
Here's the big USB Gadget pull request. This time
 not as large as usual with only 57 non-merge
 commits.
 
 The most important part here is, again, all the work
 on dwc3. This time around we're treating all
 endpoints (except for control endpoint) exactly the
 same. They all have the same amount of TRBs on the
 ring, they all treat the ring as an actual ring with
 a link TRB pointing to the head, etc.
 
 We're also helping the host side burst (on
 SuperSpeed GEN1 or GEN2 at least) for as long as
 possible until the endpoint returns NRDY.
 
 Other than this big TRB ring rework on dwc3, we also
 have a dwc3-omap DMA initialization fix, some extra
 debugfs files to aid in some odd debug sessions and
 a complete removal of our FIFO resizing logic.
 
 We have a new quirk for some dwc3 P3 quirk in some
 implementations.
 
 The rest is basically non-critical fixes and the
 usual cleanups.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJXIek2AAoJEIaOsuA1yqRE2+cP/iZzzRshn6atj4b0BaRzyk6k
 acK6YNs8pBgJMt9FaVWhDOlCfa/8hg5W+6Z5Ovpx4WPyJdZbYkoxJ0ZJGKYjYZ/y
 U8hUxpTJ2s2wZKXRKchzT90hQvNlHdg3u2okP2GK0Oa17/idcQf2w1+0Cscm/dqN
 Ur5HgukLe31/MrcPr49OuLkahSPfHUQlOn8i4AZyBTh9L8ouzKDCvzUt2ABoCRLE
 wPcMegJhks7FQ5fksXtLsfqhqAoHpYHlsZQcH35iV8wPdtSueAtZ8tS6t445XbX9
 vEsFq1ovpBMYfl/dwV6RBZiQTjZiGWaIdjOZMUcpbD03yXE2IC6l+mtE/wuhlnHu
 J0Rr4YmfS4g++J1+380NQGoreOBZ2u7pujQ4TAy399zsLD8LR3zOQK5IErILSfpO
 m6p3ElkGuAyHJKmo4CysSspXnnNGBp/fuTkYdPM9IJRJCe0YwnF/zsQd0OrNZ/Pm
 39f6woE2aBQaEzdn+3Nya9B2IWYi6SIheQXPg0HETX/hujZHJv1x758VO6+c7aeq
 nlhRlxSe8u8DKryBG43+F+myHaIz1p0Y2O3MzIlvRv0yw87QevJ4pAWptdMITaMh
 YpgSjDPw5y2z91AhK/Fv+AXswKaoWBc6EEzBirW6hQWllSp+7qWloA6vYXkdHDr7
 QajUBeXzNgXF8JfIos5H
 =7szP
 -----END PGP SIGNATURE-----

Merge tag 'usb-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: changes for v4.7 merge window

Here's the big USB Gadget pull request. This time
not as large as usual with only 57 non-merge
commits.

The most important part here is, again, all the work
on dwc3. This time around we're treating all
endpoints (except for control endpoint) exactly the
same. They all have the same amount of TRBs on the
ring, they all treat the ring as an actual ring with
a link TRB pointing to the head, etc.

We're also helping the host side burst (on
SuperSpeed GEN1 or GEN2 at least) for as long as
possible until the endpoint returns NRDY.

Other than this big TRB ring rework on dwc3, we also
have a dwc3-omap DMA initialization fix, some extra
debugfs files to aid in some odd debug sessions and
a complete removal of our FIFO resizing logic.

We have a new quirk for some dwc3 P3 quirk in some
implementations.

The rest is basically non-critical fixes and the
usual cleanups.
2016-04-28 09:32:39 -07:00
Arnd Bergmann badf6d47f8 usb: common: rework CONFIG_USB_COMMON logic
The phy-am335x driver selects 'USB_COMMON', but all other drivers
use 'depends on' for that symbol, and it depends on USB || USB_GADGET
itself, which causes a Kconfig warning:

warning: (AM335X_PHY_USB) selects USB_COMMON which has unmet direct dependencies (USB_SUPPORT && (USB || USB_GADGET))

As suggested by Felipe Balbi, this turns the logic around, and makes
'USB_COMMON' selected by everything else that needs it, so we can
remove the dependencies.

Fixes: 59f042f644 ("usb: phy: phy-am335x: bypass first VBUS sensing for host-only mode")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@kernel.org>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-18 15:23:36 +03:00
Heiko Stuebner 332184adff phy: rockchip-emmc: should be a child device of the GRF
The emmc-phy is fully enclosed in the general register files (GRF).
Therefore as seen from the device-tree it shouldn't be a separate platform-
device but instead a sub-device of the GRF - using the simply-mfd mechanism.

The driver entered the kernel in the current merge-window, so we can still
adapt the binding without needing a fallback, as the binding hasn't been
released with a full kernel yet.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-13 18:33:05 +05:30
Heiko Stuebner 0311c76e47 phy: rockchip-dp: should be a child device of the GRF
The displayport-phy is fully enclosed in the general register files (GRF).
Therefore as seen from the device-tree it shouldn't be a separate platform-
device but instead a sub-device of the GRF - using the simply-mfd mechanism.

The driver entered the kernel in the current merge-window, so we can still
adapt the binding without needing a fallback, as the binding hasn't been
released with a full kernel yet.

While the edp phy is fully part of the GRF, it doesn't have any separate
register set there, so doesn't get any register-area assigned.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-13 18:33:05 +05:30
Greg Kroah-Hartman a567500598 phy: for 4.6
*) Add driver for rockchip Display Port PHY
 *) Add driver for the Rockchip SoC internal eMMC PHY
 *) Add usb-uart functionality in rockchip-usb
 *) cleanup rcar usb2 PHY driver
 *) Fix for randconfig error
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJW1oAnAAoJEA5ceFyATYLZo6QP/3gZP5FBMJFNhwKSWiu9o0J3
 /GtnpoD/SsgVQ0zGu7KJE3nO2wB0qZS26CrKbKkpF5nP2+ySjMs3X5NXTbgd0Ayo
 rLY4TeqYbYi5Xrahcl6Zf2HdszpKVZY1hHjp8OZV/PvcOqDMqtVZYUgDjh078c6U
 5R4TwokyMfScJuYguBfz6XFX+Aj8Du56Iz846gsAeV05aIRXDolY0kKUyLUN3cDW
 jCWnoDgPvFCGBpU/n8n0xA9bNX7uf/0fjp8otomznDeMtJTW+VnzT0KwPpJ0wc4M
 uL/o6zw6a1wuW1iv9XxYZhbmhLlSyrgHKCcD+MMTssAf1xwpwBI7cQ6mEYrMxnFC
 nBSSDu6iklS7p8x8iRTxFJq6zAqMC7y/hCLXRzlI3A3hKqAglEnth4TWOx/QRVgP
 Lz4pAk/pdJtU573LsInE7gBnGmZnHQOQMPD2CXfNOt8vczPiRs8o4GRgkMs2VQPU
 PmMK1IaPIPBHgz+RdGfGxSckIaXILyCwDYMnytR0GodPidarbbfaMZCrBQg/Qo0a
 eFRZKpYXF21EQSjGEXOLTI4FeGxDTeGAIPW7K/v6Zx9M8BfsEBtwTGS9WaiAqqe4
 eD/woa600w/TBOnE7eFcooR6d0uugbJAiUZdlPrCwlGZQqy5gMf87OkVwqxFNcVW
 pGQujRqVkYNmTNFRtoHW
 =mp9/
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-testing

Kishon writes:

phy: for 4.6

*) Add driver for rockchip Display Port PHY
*) Add driver for the Rockchip SoC internal eMMC PHY
*) Add usb-uart functionality in rockchip-usb
*) cleanup rcar usb2 PHY driver
*) Fix for randconfig error

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-03-05 12:22:41 -08:00
Arnd Bergmann 8073fb8283 phy: twl4030: use __maybe_unused to hide pm functions
The twl4030 USB PHY driver uses UNIVERSAL_DEV_PM_OPS to access
its suspend/resume functions, which causes a warning about
unused symbols when CONFIG_PM is disabled:

drivers/phy/phy-twl4030-usb.c:394:12: error: 'twl4030_usb_runtime_suspend' defined but not used [-Werror=unused-function]
drivers/phy/phy-twl4030-usb.c:408:12: error: 'twl4030_usb_runtime_resume' defined but not used [-Werror=unused-function]

This adds __maybe_unused annotations to let the compiler know
it can silently drop the function definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03 20:37:41 -08:00
Arnd Bergmann 9cea322ec9 phy: dm816x: use __maybe_unused to hide pm functions
The dm816x USB PHY driver uses UNIVERSAL_DEV_PM_OPS to access
its suspend/resume functions, which causes a warning about
unused symbols when CONFIG_PM is disabled:

drivers/phy/phy-dm816x-usb.c:121:12: error: 'dm816x_usb_phy_runtime_suspend' defined but not used [-Werror=unused-function]
drivers/phy/phy-dm816x-usb.c:139:12: error: 'dm816x_usb_phy_runtime_resume' defined but not used [-Werror=unused-function]

This adds __maybe_unused annotations to let the compiler know
it can silently drop the function definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03 20:37:41 -08:00
Krzysztof Kozlowski 89636adde4 phy: Fix armada375 compile test build on UM
The phy-armada375-usb2 driver uses IOMEM functions so COMPILE_TEST && OF
build failed with:

drivers/built-in.o: In function `armada375_usb_phy_probe':
phy-armada375-usb2.c:(.text+0x121d): undefined reference to
`devm_ioremap_resource'

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-03-01 17:13:51 +05:30
Yoshihiro Shimoda b956401699 phy: rcar-gen3-usb2: remove HSUSB registers handling
Since the related driver (CPG/MSSR driver) only manages the first module
clock, this driver should not handle the HSUSB registers. So, this patch
removes the HSUSB registers handling.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-03-01 17:13:50 +05:30
Heiko Stuebner 605df8af33 phy: rockchip-usb: add handler for usb-uart functionality
Most newer Rockchip SoCs provide the possibility to use a usb-phy
as passthrough for the debug uart (uart2), making it possible to
for example get console output without needing to open the device.

This patch adds an early_initcall to enable this functionality
conditionally via the commandline and also disables the corresponding
usb controller in the devicetree.

Currently only data for the rk3288 is provided, but at least the
rk3188 and arm64 rk3368 also provide this functionality and will be
enabled later.

On a spliced usb cable the signals are tx on white wire(D+) and
rx on green wire(D-).

The one caveat is that currently the reconfiguration of the phy
happens as early_initcall, as the code depends on the unflattened
devicetree being available. Everything is fine if only a regular
console is active as the console-replay will happen after the
reconfiguation. But with earlycon active output up to smp-init
currently will get lost.

The phy is an optional property for the connected dwc2 controller,
so we still provide the phy device but fail all phy-ops with -EBUSY
to make sure the dwc2 does not try to transmit anything on the
repurposed phy.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-03-01 17:13:50 +05:30
Yakir Yang fd968973de phy: Add driver for rockchip Display Port PHY
Add phy driver for the Rockchip DisplayPort PHY module. This
is required to get DisplayPort working in Rockchip SoCs.

Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-03-01 17:13:50 +05:30
Shawn Lin c474a94950 phy: add a driver for the Rockchip SoC internal eMMC PHY
This patch to add a generic PHY driver for ROCKCHIP eMMC PHY.
Access the PHY via registers provided by GRF (general register
files) module.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-03-01 17:13:50 +05:30
Tony Lindgren 58a66dba1b phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload
If we reload phy-twl4030-usb, we get a warning about unbalanced
pm_runtime_enable. Let's fix the issue and also fix idling of the
device on unload before we attempt to shut it down.

If we don't properly idle the PHY before shutting it down on removal,
the twl4030 ends up consuming about 62mW of extra power compared to
running idle with the module loaded.

Cc: stable@vger.kernel.org
Cc: Bin Liu <b-liu@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: NeilBrown <neil@brown.name>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-02-10 11:46:01 +05:30
Tony Lindgren b241d31ef2 phy: twl4030-usb: Relase usb phy on unload
Otherwise rmmod omap2430; rmmod phy-twl4030-usb; modprobe omap2430
will try to use a non-existing phy and oops:

Unable to handle kernel paging request at virtual address b6f7c1f0
...
[<c048a284>] (devm_usb_get_phy_by_node) from [<bf0758ac>]
(omap2430_musb_init+0x44/0x2b4 [omap2430])
[<bf0758ac>] (omap2430_musb_init [omap2430]) from [<bf055ec0>]
(musb_init_controller+0x194/0x878 [musb_hdrc])

Cc: stable@vger.kernel.org
Cc: Bin Liu <b-liu@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: NeilBrown <neil@brown.name>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-02-10 11:46:00 +05:30
Shawn Lin b82fcabe21 phy: core: fix wrong err handle for phy_power_on
If phy_pm_runtime_get_sync failed but we already
enable regulator, current code return directly without
doing regulator_disable. This patch fix this problem
and cleanup err handle of phy_power_on to be more readable.

Fixes: 3be88125d8 ("phy: core: Support regulator ...")
Cc: <stable@vger.kernel.org> # v3.18+
Cc: Roger Quadros <rogerq@ti.com>
Cc: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-02-10 11:45:41 +05:30
Geert Uytterhoeven d896910f38 phy: Restrict phy-hi6220-usb to HiSilicon arm64
The HiSilicon Hi6220 USB PHY is available in HiSilicon Hi6220 SoCs only.
Restrict it to HiSilicon arm64, unless compile-testing.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-02-03 11:55:28 +05:30
Greg Kroah-Hartman daf273350d phy: for 4.5
*) new PHY driver for hi6220 usb and rcar gen3 usb2
 *) deprecate phy-omap-control driver. phy-omap-control driver was added
    when there was no proper infrastructure for doing control module
    initialization. The phy-omap-control driver is not an 'actual' PHY
    driver and it was just a hack to do PHY related control module
    initialization. Now with SYSCON framework in the kernel, control
    module setttings can be done using APIs provided by syscon.
 *) usbphy-internal pll creates the needed 480MHz and is also a
    supply-clock back to the core clock-controller in Rockchip SoCs.
    This is now modeled as a real clock.
 *) calibrate mt65xx usb3 PHY for better eye diagram and receiver
    sensitivity.
 *) Miscellaneous cleanups.
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJWeR+CAAoJEA5ceFyATYLZG8QP/jlux4ejRKhaO/BYd2gSEOij
 H6CO+3O+oQqgKHdDvgGrE5vAqRfxBZI9UErOEBUcPOY+Qdp0s5Wg657WuJR1sSDK
 iNwho1AS2ZuQHqxVDaDToBCTIwliDVkT0+eIgq5tGZaHBh0/iOUEzjnODcaR36a/
 VFPPTTFmkeX9Y0qzyWx/eVASBNguKo6/8/h9PV0zIFkunaE28rDvR2F9x4QSfBaV
 737iivHmVxe+/dQ3EwLymrVu1LMwporEqctWUFzUVHsSZfJH7lCErzCs5qPNCoOw
 OqqHJXmk+FtYix3GMj+sGSD3qR83ml031EeCxpmHQ4OVNfTTIodF/po9K9NRkM8K
 4rA9EkV5xjgWZFw/38ANvozcUXDbVOKMqhwMAH8hLWvIDzO4HfPY/hpRpXzTc+vo
 c7QowH+SP/8lXWGEVvFNjDWaowC7ajkAq94RFXQLTucySP9jgaDDD9nK2onMPD2S
 Z2t7QXgdu9zuLziWeigriSIsjQIJ7gCfAHpUAaeX9VDocgzTqOoweYFTQuU89S9S
 FrfE/B3k+ZI+RDwvsbAShzmMxoYSpct5fhwjA+6D0L1v7piU0GSAT5wMGYFumC32
 BQWi41I2o5ory3rOOfzFa5GUxBEG8dJNjIgJKvcMT/2QH0zinY6c03a1wN+V7iRV
 i1YqBUUvHCEnbsNHrxmN
 =Bu7H
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

phy: for 4.5

*) new PHY driver for hi6220 usb and rcar gen3 usb2
*) deprecate phy-omap-control driver. phy-omap-control driver was added
   when there was no proper infrastructure for doing control module
   initialization. The phy-omap-control driver is not an 'actual' PHY
   driver and it was just a hack to do PHY related control module
   initialization. Now with SYSCON framework in the kernel, control
   module setttings can be done using APIs provided by syscon.
*) usbphy-internal pll creates the needed 480MHz and is also a
   supply-clock back to the core clock-controller in Rockchip SoCs.
   This is now modeled as a real clock.
*) calibrate mt65xx usb3 PHY for better eye diagram and receiver
   sensitivity.
*) Miscellaneous cleanups.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-12-26 17:01:18 -08:00
Greg Kroah-Hartman 87cf5586fd usb: patches for v4.5
A ton of improvements to dwc2 have been made. The
 driver should be a lot more stable on v4.5 then ever
 before.
 
 Our good old dwc3 got a few cleanups and misc fixes
 and also added support to Xilinx's integration of
 this IP.
 
 Yoshihiro Shimoda gives us support for a new USB3
 peripheral controller from Renesas.
 
 Other than these, the usual misc fixes all over the
 place.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWes7RAAoJEIaOsuA1yqREC5cP/jzIWxyHj5rNPr8VGnjzd4Wh
 wcsxGmTLHA+c5FFer0+hnj8DXSELyYV2Lcfng1pkPuGWAsPzdd9FvNV/9Q1RmqPG
 R96JB9N3dnDY7erJZkmpDOJvGg+p/Ec6GmFkrTVWQeXTwlkI1mdvaZwV9iFQfmb0
 V/gdQWdlmbTarmwPLxEpaDN+JDB9Gm6RdyK/B5pC8ZeF9S42aQIFCrfOfjP3OiZj
 o5Q6Gv2YxElSKscObLFyltfgb05YD/yO0al/wm7p0lGXdsaMMokjyxrbibnoFNic
 Z5lexn8DqJ/yjy9w5K3Tj+b4nSfokUibUB3r0Cwbv6di7g0gUNclUwg79X8tSoDS
 T2hkpmpAIvb2z80wlLFpGptfC39JoLtzAkxfBbnu025QxFeI4AknzQuXiW8UgvSO
 /t1Aq6jg3j+GTuU+BiBnLjEPBZSsh/b7qIpreaXIIb7A01e2T7QT5i8kB7Zk5d5F
 4aLBH/QHHXS+RGJmY9qgW6wee0XcaCysCUctwVuPY1fGukPrIFxjhPnJtjjqKnW7
 41RCTwv2DKmm6CV5xVXYfSMVkmWBrNlpjugZkYH9yRbAzwPA/H/A5iPJwoOnGshn
 VNuFJOBKJJFR0u072LidgMWZ7AaeBmWnageAU1sFr8iXWiWESwaAjI4ouPNVugPI
 PxYdhPlc+lHBPXDrPh8p
 =8vM4
 -----END PGP SIGNATURE-----

Merge tag 'usb-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.5

A ton of improvements to dwc2 have been made. The
driver should be a lot more stable on v4.5 then ever
before.

Our good old dwc3 got a few cleanups and misc fixes
and also added support to Xilinx's integration of
this IP.

Yoshihiro Shimoda gives us support for a new USB3
peripheral controller from Renesas.

Other than these, the usual misc fixes all over the
place.
2015-12-26 16:56:25 -08:00
Kishon Vijay Abraham I 9955a7835b phy: omap-usb2: use *syscon* framework API to power on/off the PHY
Deprecate using phy-omap-control driver to power on/off the PHY,
and use *syscon* framework to do the same. This handles
powering on/off the PHY for the USB2 PHYs used in various TI SoCs.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-12-21 14:26:28 +05:30
Kishon Vijay Abraham I 86c574e4bc phy: omap-usb2: use omap_usb_power_off to power off the PHY during probe
No functional change. Previously omap_control_phy_power() was used to power
off the PHY during probe. But once phy-omap-usb2 driver is adapted to
use syscon, omap_control_phy_power() cannot be used. Hence used
omap_usb_power_off to power off the PHY.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
2015-12-21 14:26:28 +05:30
Kishon Vijay Abraham I 3f2362c56f phy: ti-pipe3: use *syscon* framework API to set PCS value of the PHY
Deprecate using phy-omap-control driver to set PCS value of the PHY
and start using *syscon* API to do the same.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
2015-12-21 14:26:27 +05:30
Kishon Vijay Abraham I c396a1c7ee phy: ti-pipe3: use *syscon* framework API to power on/off the PHY
Deprecate using phy-omap-control driver to power on/off the PHY and
use *syscon* framework to do the same.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
2015-12-21 14:26:27 +05:30
Kishon Vijay Abraham I cc34ace73d phy: ti-pipe3: use ti_pipe3_power_off to power off the PHY during probe
No functional change. Previously omap_control_phy_power() was used to power
off the PHY during probe. But once PIPE3 driver is adapted to use syscon,
omap_control_phy_power() cannot be used. Hence used ti_pipe3_power_off
to power off the PHY.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
2015-12-21 14:26:27 +05:30