Commit Graph

239 Commits

Author SHA1 Message Date
Axel Lin a5e5d3c0b2 phy: ti-pipe3: Simplify ti_pipe3_dpll_wait_lock implementation
Code simplification. No functional change.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-12 11:01:17 +05:30
Axel Lin bd4abc2f96 phy: samsung-usb2: Remove NULL terminating entry from phys array
Current code uses num_phys settings to tell the number of entries in phys.
Thus remove the NULL terminating entry from phys array which is not necessary.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-12 11:01:16 +05:30
Axel Lin 1cbdfc48c3 phy: hix5hd2-sata: Check return value of platform_get_resource
This prevent NULL pointer dereference if res is NULL.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-12 11:01:16 +05:30
Axel Lin 0f9722e37f phy: exynos-dp-video: Kill exynos_dp_video_phy_pwr_isol function
If IS_ERR(state->regs) the .probe fails.
So IS_ERR(state->regs) test in exynos_dp_video_phy_pwr_isol() is not necessary.
exynos_dp_video_phy_pwr_isol() simply does a regmap_update_bits() call now,
just call regmap_update_bits() instead and return proper return value.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-12 11:01:15 +05:30
Axel Lin af69decc7c phy: exynos-mipi-video: Use spin_lock to protct state->regmap rmw operations
The state->regmap is initialized by devm_regmap_init_mmio().
So it's fine to use spin_lock rather than mutex to protct state->regmap rmw
operations.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
[Julia.Lawall@lip6.fr: Found an issue with the original patch w.r.t unbalanced
 spin_lock call]
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-11 15:51:06 +05:30
Axel Lin 739ae3452d phy: berlin-usb: Set drvdata for phy and use it
At the context where we have pointer to struct phy, it's useful to call
phy_get_drvdata() to get the address of priv. With this change, we can
remove the to_phy_berlin_usb_priv() macro and remove *phy from struct
phy_berlin_usb_priv.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-10 17:18:09 +05:30
Stephen Rothwell 7e476c7dd8 regulator: fixes for regulator_set_optimum_mode name change
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-10 10:39:32 +00:00
Axel Lin 298fe56ee2 phy: ti-pipe3: Remove unneeded ifdef CONFIG_OF guard and of_match_ptr
if !CONFIG_OF, the probe fails.
This is a dt-only driver, so the ifdef CONFIG_OF guard and of_match_ptr are
not needed.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-10 14:12:28 +05:30
Axel Lin 52a4a72a1a phy: omap-usb2: Remove unneeded ifdef CONFIG_OF guard and of_match_ptr
if !CONFIG_OF, the probe fails.
This is a dt-only driver, so the ifdef CONFIG_OF guard and of_match_ptr are
not needed.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-10 14:12:27 +05:30
Axel Lin 1f9ba767d5 phy: omap-control: Remove unneeded ifdef CONFIG_OF guard and of_match_ptr
if !CONFIG_OF, the probe fails.
This is a dt-only driver, so the ifdef CONFIG_OF guard and of_match_ptr are
not needed.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-10 14:12:27 +05:30
Axel Lin 320c3fcec6 phy: miphy28lp: Use PTR_ERR_OR_ZERO
PTR_ERR_OR_ZERO simplifies the code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Gabriel Fernandez<gabriel.fernandez@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-10 14:12:27 +05:30
Axel Lin f8f55393b2 phy: berlin-sata: Use devm_kcalloc at appropriate place
Prefer devm_kcalloc over devm_kzalloc with multiply.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-10 14:12:27 +05:30
Axel Lin 8fd0ea395f phy: xgene: Use PTR_ERR_OR_ZERO
Also remove unneeded goto and rc variable.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-10 14:12:27 +05:30
Axel Lin 82ffb676c8 phy: berlin-usb: Use PTR_ERR_OR_ZERO
PTR_ERR_OR_ZERO simplifies the code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-10 14:12:27 +05:30
Axel Lin cfd565d1e1 phy: exynos-mipi-video: Fixup the test for state->regmap
syscon_regmap_lookup_by_phandle() returns ERR_PTR on error.
Thus don't use null test against state->regmap.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-04 18:31:48 +05:30
Axel Lin 235b633eb5 phy: miphy28lp: Add missing .owner field in miphy28lp_ops
Add missing .owner field in miphy28lp_ops, which is used for refcounting.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-04 18:31:47 +05:30
Axel Lin 991e45f8f8 phy: xgene: Remove duplicate code to set ctx->dev
Set it once is enough and it's done after devm_kzalloc().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-04 18:31:47 +05:30
Axel Lin 7a83b145b5 phy: armada375-usb2: Set drvdata for phy and use it
At the context we have pointer to struct phy, it's useful to call
phy_get_drvdata() to get the address of cluster_phy. This has slightly
better readability than calling dev_get_drvdata(phy->dev.parent).

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-04 18:31:47 +05:30
Axel Lin 5bd568f5d2 phy: miphy365x: Avoid calling of_get_child_count() multiple times
Currently, of_get_child_count() is called in each iteration of the for loop in
miphy365x_xlate(). This patch stores the return value of of_get_child_count()
in miphy_dev->nphys and call of_get_child_count() once in miphy365x_probe().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-04 18:31:47 +05:30
Axel Lin 21647f7383 phy: miphy28lp: Avoid calling of_get_child_count() multiple times
Currently, of_get_child_count() is called in each iteration of the for loop in
miphy28lp_xlate(). This patch stores the return value of of_get_child_count()
in miphy_dev->nphys and call of_get_child_count() once in miphy28lp_probe().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-03-04 18:31:47 +05:30
Linus Torvalds e29876723f USB patches for 3.20-rc1
Here's the big pull request for the USB driver tree for 3.20-rc1.
 
 Nothing major happening here, just lots of gadget driver updates, new
 device ids, and a bunch of cleanups.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB patches from Greg KH:
 "Here's the big pull request for the USB driver tree for 3.20-rc1.

  Nothing major happening here, just lots of gadget driver updates, new
  device ids, and a bunch of cleanups.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (299 commits)
  usb: musb: fix device hotplug behind hub
  usb: dwc2: Fix a bug in reading the endpoint directions from reg.
  staging: emxx_udc: fix the build error
  usb: Retry port status check on resume to work around RH bugs
  Revert "usb: Reset USB-3 devices on USB-3 link bounce"
  uhci-hub: use HUB_CHAR_*
  usb: kconfig: replace PPC_OF with PPC
  ehci-pci: disable for Intel MID platforms (update)
  usb: gadget: Kconfig: use bool instead of boolean
  usb: musb: blackfin: remove incorrect __exit_p()
  USB: fix use-after-free bug in usb_hcd_unlink_urb()
  ehci-pci: disable for Intel MID platforms
  usb: host: pci_quirks: joing string literals
  USB: add flag for HCDs that can't receive wakeup requests (isp1760-hcd)
  USB: usbfs: allow URBs to be reaped after disconnection
  cdc-acm: kill unnecessary messages
  cdc-acm: add sanity checks
  usb: phy: phy-generic: Fix USB PHY gpio reset
  usb: dwc2: fix USB core dependencies
  usb: renesas_usbhs: fix NULL pointer dereference in dma_release_channel()
  ...
2015-02-15 10:24:55 -08:00
Linus Torvalds 540a7c5061 SCSI misc on 20150209
This is the usual grab bag of driver updates (hpsa, storvsc, mp2sas,
 megaraid_sas, ses) plus an assortment of minor updates.  There's also an
 update to ufs which adds new phy drivers and finally a new logging
 infrastructure for SCSI.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "This is the usual grab bag of driver updates (hpsa, storvsc, mp2sas,
  megaraid_sas, ses) plus an assortment of minor updates.

  There's also an update to ufs which adds new phy drivers and finally a
  new logging infrastructure for SCSI"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (114 commits)
  scsi_logging: return void for dev_printk() functions
  scsi: print single-character strings with seq_putc
  scsi: merge consecutive seq_puts calls
  scsi: replace seq_printf with seq_puts
  aha152x: replace seq_printf with seq_puts
  advansys: replace seq_printf with seq_puts
  scsi: remove SPRINTF macro
  sg: remove an unused variable
  hpsa: Use local workqueues instead of system workqueues
  hpsa: add in P840ar controller model name
  hpsa: add in gen9 controller model names
  hpsa: detect and report failures changing controller transport modes
  hpsa: shorten the wait for the CISS doorbell mode change ack
  hpsa: refactor duplicated scan completion code into a new routine
  hpsa: move SG descriptor set-up out of hpsa_scatter_gather()
  hpsa: do not use function pointers in fast path command submission
  hpsa: print CDBs instead of kernel virtual addresses for uncommon errors
  hpsa: do not use a void pointer for scsi_cmd field of struct CommandList
  hpsa: return failed from device reset/abort handlers
  hpsa: check for ctlr lockup after command allocation in main io path
  ...
2015-02-11 10:28:45 -08:00
Peter Griffin bbd3ce86c7 phy: miphy365x: Pass sysconfig register offsets via syscfg dt property.
Based on Arnds review comments here https://lkml.org/lkml/2014/11/13/161,
update the miphy365 phy driver to access sysconfig register offsets via
syscfg dt property.

This is because the reg property should not be mixing address spaces
like it does currently for miphy365. This change then also aligns us
to how other platforms such as keystone and bcm7445 pass there syscon
offsets via DT.

This patch breaks DT compatibility, but this platform is considered WIP,
and is only used by a few developers who are upstreaming support for it.
This change has been done as a single atomic commit to ensure it is
bisectable.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Tested-by: Maxime Coquelin <maxime.coquelin@st.com>
2015-01-30 18:12:05 +05:30
Sylwester Nawrocki e4b3d38088 phy: exynos-video-mipi: Fix regression by adding support for PMU regmap
After the Exynos Power Management Unit (PMU) driver was converted
to the platform device driver in commit 14fc8b93d4
("ARM: EXYNOS: Add platform driver support for Exynos PMU") and
then PMU device nodes added to Exynos4 DTs in commit
7b9613aca4 ("ARM: dts: add PMU syscon node for exynos4")
the mipi video phy driver started failing probing, due to overlapping
memory mapped register region resources.

Now all the Exynos peripheral devices which have registers in the PMU
region are supposed to use the regmap provided by the syscon driver.
So support for regmap is added in this patch, this unfortunately
creates yet another indirection into that supposedly trivial driver.

The additional mutex is required because single register is used by
PHY pairs (they share bit in a register). An improvement here could
be to allow a PHY instance be created with a driver custom mutex,
which would then be common for each PHY pair. This would eliminate
one of 3 mutexes which need to be taken in the phy_power_on/
phy_power_off code path. However, I tried to keep this bug fix patch
possibly simple.

This change is needed to make MIPI DSI displays and MIPI CSI-2
camera sensors working again on Exynos4 boards.

Cc: Pankaj Dubey <pankaj.dubey@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-01-30 16:06:48 +05:30
Yunzhi Li 64d11406de phy: add a driver for the Rockchip SoC internal USB2.0 PHY
This patch to add a generic PHY driver for ROCKCHIP usb PHYs,
currently this driver can support RK3288. The RK3288 SoC have
three independent USB PHY IPs which are all configured through a
set of registers located in the GRF (general register files)
module.

Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-01-30 16:06:47 +05:30
David S. Miller 95f873f2ff Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	arch/arm/boot/dts/imx6sx-sdb.dts
	net/sched/cls_bpf.c

Two simple sets of overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-27 16:59:56 -08:00
Peter Griffin 5402d927ae phy: phy-stih407-usb: Pass sysconfig register offsets via syscfg property.
Based on Arnds review comments here https://lkml.org/lkml/2014/11/13/161,
update the phy driver to not use the reg property to access the sysconfig
register offsets.

This is because other phy's (miphy28, miphy365) have a combination of
memory mapped registers and sysconfig control regs, and we shouldn't
be mixing address spaces in the reg property. In addition we would
ideally like the sysconfig offsets to be passed via DT in a uniform way.

This new method will also allow us to support devices which have sysconfig
registers in different banks more easily and it is also analagous to how
keystone and bcm7745 platforms pass there syscon offsets in DT.

This breaks DT compatibility, but this platform is considered WIP, and
is only used by a few developers who are upstreaming support for it.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-01-21 15:23:06 +05:30
Gabriel FERNANDEZ de6e0f84be phy: miphy28lp: Pass sysconfig register offsets via syscfg dt property.
Based on Arnds review comments here https://lkml.org/lkml/2014/11/13/161,
update the miphy28lp phy driver to access sysconfig register offsets via
syscfg dt property.

This is because the reg property should not be mixing address spaces like
it does currently for miphy28lp. This change then also aligns us to how other
platforms such as keystone and bcm7445 pass there syscon offsets via DT.

I have updated the miphy28lp phy driver same way as Peter's implementation.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-01-21 15:23:06 +05:30
Wei Yongjun 147fd9d6bb phy: fix return value check in armada375_usb_phy_probe()
In case of error, the function devm_ioremap_resource() returns
ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-01-21 15:23:06 +05:30
Roger Quadros 7f33912d29 phy: ti-pipe3: Fix SATA across suspend/resume
Failed test case: Boot without SATA drive connected. Suspend/resume
the board and then connect SATA drive. It fails to enumerate.

Due to Errata i783 "SATA Lockup After SATA DPLL Unlock/Relock"
we can't allow SATA DPLL to be in the unlocked state.
The SATA refclk (sata_ref_clk) is the source of the SATA_DPLL.
This clock is being controlled only by the AHCI SATA driver and is
shut off during system suspend (if the SATA drive was not already attached)
causing the SATA DPLL to be unlocked and so causing errata i783.

To prevent sata_ref_clk from being disabled, we add the control of
this clock to the SATA PHY driver and prevent it from being disabled.

This also fixes the issue of SATA not working on OMAP5/DRA7 when
AHCI platform driver is built as a module.

NOTE: Device tree changes also required for OMAP5 & DRA7.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-01-21 15:23:06 +05:30
Roger Quadros 6e7384320f phy: ti-pipe3: Disable clocks on system suspend
On system suspend, the runtime_suspend() driver hook doesn't get
called for USB phy and so the clocks are not disabled in the driver.
This causes the L3INIT_960M_GFCLK and L3INIT_480M_GFCLK to remain
active on the DRA7 platform while in system suspend.

In case of pcie-phy, the runtime_suspend hook gets called after
the suspend hook so we introduce a flag phy->enabled to keep
track if our clocks are enabled or not to prevent multiple
enable/disables.

Add suspend/resume hooks to the driver.
Move enabling/disabling clock code into helper functions.

Reported-by: Nishant Menon <nm@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-01-21 15:23:06 +05:30
Yaniv Gardi ca14ab55fb phy: qcom-ufs: add support for 14nm phy
This change adds a support for a 14nm qcom-ufs phy that is
required in platforms that use ufs-qcom controller.

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Dov Levenglick <dovl@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2015-01-20 19:43:26 +01:00
Yaniv Gardi 39e794bff7 phy: qcom-ufs: add support for 20nm phy
This change adds a support for a 20nm qcom-ufs phy that is required in
platforms that use ufs-qcom controller.

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Dov Levenglick <dovl@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2015-01-20 19:43:25 +01:00
Yaniv Gardi adaafaa393 phy: qcom-ufs: add support for QUALCOMM Technologies UFS PHY drivers
This change adds a generic and common API support for ufs phy QUALCOMM
Technologies. This support provides common code and also points
to specific phy callbacks to differentiate between different behaviors
of frequent use-cases (like power on, power off, phy calibration etc).

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Dov Levenglick <dovl@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2015-01-20 19:43:24 +01:00
Peter Griffin 63139885c4 phy: miphy365x: Pass sysconfig register offsets via syscfg dt property.
Based on Arnds review comments here https://lkml.org/lkml/2014/11/13/161,
update the miphy365 phy driver to access sysconfig register offsets via
syscfg dt property.

This is because the reg property should not be mixing address spaces
like it does currently for miphy365. This change then also aligns us
to how other platforms such as keystone and bcm7445 pass there syscon
offsets via DT.

This patch breaks DT compatibility, but this platform is considered WIP,
and is only used by a few developers who are upstreaming support for it.
This change has been done as a single atomic commit to ensure it is
bisectable.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-11 18:53:34 -05:00
Peter Griffin 937127fe13 phy: phy-stih407-usb: Pass sysconfig register offsets via syscfg property.
Based on Arnds review comments here https://lkml.org/lkml/2014/11/13/161,
update the phy driver to not use the reg property to access the sysconfig
register offsets.

This is because other phy's (miphy28, miphy365) have a combination of
memory mapped registers and sysconfig control regs, and we shouldn't
be mixing address spaces in the reg property. In addition we would
ideally like the sysconfig offsets to be passed via DT in a uniform way.

This new method will also allow us to support devices which have sysconfig
registers in different banks more easily and it is also analagous to how
keystone and bcm7745 platforms pass there syscon offsets in DT.

This breaks DT compatibility, but this platform is considered WIP, and
is only used by a few developers who are upstreaming support for it.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-11 18:53:33 -05:00
Vignesh R 0bc09f9cdc phy: phy-ti-pipe3: fix inconsistent enumeration of PCIe gen2 cards
Prior to DRA74x silicon rev 1.1, pcie_pcs register bits 8-15 and bits 16-23
were used to configure RC delay count for phy1 and phy2 respectively.
phyid was used as index to distinguish the phys and to configure the delay
values appropriately.

As of DRA74x silicon rev 1.1, pcie_pcs register definition has changed.
Bits 16-23 are used to configure delay values for *both* phy1 and phy2.

Hence phyid is no longer required.

So, drop id field from ti_pipe3 structure and its subsequent references
for configuring pcie_pcs register.

Also, pcie_pcs register now needs to be configured with delay value of 0x96
at bit positions 16-23. See register description of CTRL_CORE_PCIE_PCS in
ARM572x TRM, SPRUHZ6, October 2014, section 18.5.2.2, table 18-1804.

This is needed to ensure Gen2 cards are enumerated consistently.

DRA72x silicon behaves same way as DRA74x rev 1.1 as far as this functionality
is considered.

Test results on DRA74x and DRA72x EVMs:

Before patch
------------
DRA74x ES 1.0: Gen1 cards work, Gen2 cards do not work (expected result due to
silicon errata)
DRA74x ES 1.1: Gen1 cards work, Gen2 cards do not work sometimes due to incorrect
programming of register

DRA72x: Gen1 cards work, Gen2 cards do not work sometimes due to incorrect
programming of register

After patch
-----------
DRA74x ES 1.0: Gen1 cards work, Gen2 cards do not work (expected result due to
silicon errata)
DRA74x ES 1.1: Gen1 cards work, Gen2 cards work consistently.

DRA72x: Gen1 and Gen2 cards enumerate consistently.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-12-23 15:44:32 +05:30
Hans de Goede 372400344a phy-sun4i-usb: Change disconnect threshold value for sun6i
The allwinner SDK uses a value of 3 for the disconnect threshold setting on
sun6i, do the same in the kernel.

In my previous experience with sun5i problems getting the threshold right
is important to avoid usb2 devices being unplugged sometimes going unnoticed.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-12-23 15:44:31 +05:30
Dan Carpenter 4e038e8919 phy: miphy28lp: unlock on error in miphy28lp_init()
We need to unlock before returning the -EINVAL here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-12-23 15:44:31 +05:30
Linus Torvalds c0f486fde3 More ACPI and power management updates for 3.19-rc1
- Fix a regression in leds-gpio introduced by a recent commit that
    inadvertently changed the name of one of the properties used by
    the driver (Fabio Estevam).
 
  - Fix a regression in the ACPI backlight driver introduced by a
    recent fix that missed one special case that had to be taken
    into account (Aaron Lu).
 
  - Drop the level of some new kernel messages from the ACPI core
    introduced by a recent commit to KERN_DEBUG which they should
    have used from the start and drop some other unuseful KERN_ERR
    messages printed by ACPI (Rafael J Wysocki).
 
  - Revert an incorrect commit modifying the cpupower tool
    (Prarit Bhargava).
 
  - Fix two regressions introduced by recent commits in the OPP
    library and clean up some existing minor issues in that code
    (Viresh Kumar).
 
  - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout
    the tree (or drop it where that can be done) in order to make
    it possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki,
    Ulf Hansson, Ludovic Desroches).  There will be one more
    "CONFIG_PM_RUNTIME removal" batch after this one, because some
    new uses of it have been introduced during the current merge
    window, but that should be sufficient to finally get rid of it.
 
  - Make the ACPI EC driver more robust against race conditions
    related to GPE handler installation failures (Lv Zheng).
 
  - Prevent the ACPI device PM core code from attempting to
    disable GPEs that it has not enabled which confuses ACPICA
    and makes it report errors unnecessarily (Rafael J Wysocki).
 
  - Add a "force" command line switch to the intel_pstate driver
    to make it possible to override the blacklisting of some
    systems in that driver if needed (Ethan Zhao).
 
  - Improve intel_pstate code documentation and add a MAINTAINERS
    entry for it (Kristen Carlson Accardi).
 
  - Make the ACPI fan driver create cooling device interfaces
    witn names that reflect the IDs of the ACPI device objects
    they are associated with, except for "generic" ACPI fans
    (PNP ID "PNP0C0B").  That's necessary for user space thermal
    management tools to be able to connect the fans with the
    parts of the system they are supposed to be cooling properly.
    From Srinivas Pandruvada.
 
 /
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Merge tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI and power management updates from Rafael Wysocki:
 "These are regression fixes (leds-gpio, ACPI backlight driver,
  operating performance points library, ACPI device enumeration
  messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device
  PM), some cleanups in the operating performance points (OPP)
  framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of
  minor intel_pstate driver changes, a new MAINTAINERS entry for it and
  an ACPI fan driver change needed for better support of thermal
  management in user space.

  Specifics:

   - Fix a regression in leds-gpio introduced by a recent commit that
     inadvertently changed the name of one of the properties used by the
     driver (Fabio Estevam).

   - Fix a regression in the ACPI backlight driver introduced by a
     recent fix that missed one special case that had to be taken into
     account (Aaron Lu).

   - Drop the level of some new kernel messages from the ACPI core
     introduced by a recent commit to KERN_DEBUG which they should have
     used from the start and drop some other unuseful KERN_ERR messages
     printed by ACPI (Rafael J Wysocki).

   - Revert an incorrect commit modifying the cpupower tool (Prarit
     Bhargava).

   - Fix two regressions introduced by recent commits in the OPP library
     and clean up some existing minor issues in that code (Viresh
     Kumar).

   - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the
     tree (or drop it where that can be done) in order to make it
     possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf
     Hansson, Ludovic Desroches).

     There will be one more "CONFIG_PM_RUNTIME removal" batch after this
     one, because some new uses of it have been introduced during the
     current merge window, but that should be sufficient to finally get
     rid of it.

   - Make the ACPI EC driver more robust against race conditions related
     to GPE handler installation failures (Lv Zheng).

   - Prevent the ACPI device PM core code from attempting to disable
     GPEs that it has not enabled which confuses ACPICA and makes it
     report errors unnecessarily (Rafael J Wysocki).

   - Add a "force" command line switch to the intel_pstate driver to
     make it possible to override the blacklisting of some systems in
     that driver if needed (Ethan Zhao).

   - Improve intel_pstate code documentation and add a MAINTAINERS entry
     for it (Kristen Carlson Accardi).

   - Make the ACPI fan driver create cooling device interfaces witn
     names that reflect the IDs of the ACPI device objects they are
     associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B").

     That's necessary for user space thermal management tools to be able
     to connect the fans with the parts of the system they are supposed
     to be cooling properly.  From Srinivas Pandruvada"

* tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  MAINTAINERS: add entry for intel_pstate
  ACPI / video: update the skip case for acpi_video_device_in_dod()
  power / PM: Eliminate CONFIG_PM_RUNTIME
  NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  ACPI / EC: Fix unexpected ec_remove_handlers() invocations
  Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
  tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
  PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
  mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
  PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
  ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  ACPI / PM: Do not disable wakeup GPEs that have not been enabled
  ACPI / utils: Drop error messages from acpi_evaluate_reference()
  ...
2014-12-18 20:28:33 -08:00
Rafael J. Wysocki 7ba37053eb phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
After commit b2b49ccbdd (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks
depending on CONFIG_PM_RUNTIME may now be changed to depend on
CONFIG_PM.

Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere under
drivers/phy/.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-12-13 00:42:12 +01:00
Greg Kroah-Hartman 842f57baab Improvements in phy-core specifically on PHY core finds the PHY in the case
of non-dt boot. Adds three new PHY drivers using the PHY framework and some
 miscellaneous fixes and cleanups.
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Merge tag 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-testing

Kishon writes:

Improvements in phy-core specifically on PHY core finds the PHY in the case
of non-dt boot. Adds three new PHY drivers using the PHY framework and some
miscellaneous fixes and cleanups.
2014-11-27 08:25:20 -08:00
Gregory CLEMENT eee47538ec phy: add support for USB cluster on the Armada 375 SoC
The Armada 375 SoC comes with an USB2 host and device controller and
an USB3 controller. The USB cluster control register allows to manage
common features of both USB controllers.

This commit adds a driver integrated in the generic PHY framework to
control this USB cluster feature.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[ kishon@ti.com : Made it to use the updated devm_phy_create API and
		  soem cosmentic changes in Kconfig file.]
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26 11:07:14 +05:30
Gregory CLEMENT c1fc005010 phy: Use PTR_ERR_OR_ZERO to fix warning raised by coccinelle
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-26 11:07:13 +05:30
Greg Kroah-Hartman 2d4d9f35ba usb: patches for v3.19 merge window
This time, a very pull request with 216 non-merge
 commits. Most of the commits contained here are
 sparse or coccinelle fixes ranging from missing
 'static' to returning 0 in case of errors.
 
 More importantly, we have the removal the now
 unnecessary 'driver' argument to ->udc_stop().
 
 DWC2 learned about Dual-Role builds. Users of
 this IP can now have a single driver built for
 host and device roles.
 
 DWC3 got support for two new HW platforms: Exynos7
 and AMD.
 
 The Broadcom USB 3.0 Device Controller IP is now
 supported and so is PLX USB338x, which means DWC3
 has lost is badge as the only USB 3.0 peripheral
 IP supported on Linux.
 
 Thanks for Tony Lindgren's work, we can now have
 a distro-like kernel where all MUSB glue layers
 can be built into the same kernel (statically
 or dynamically linked) and it'll work in PIO (DMA
 will come probably on v3.20).
 
 Other than these, the usual set of cleanups and
 non-critical fixes.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.19 merge window

This time, a very pull request with 216 non-merge
commits. Most of the commits contained here are
sparse or coccinelle fixes ranging from missing
'static' to returning 0 in case of errors.

More importantly, we have the removal the now
unnecessary 'driver' argument to ->udc_stop().

DWC2 learned about Dual-Role builds. Users of
this IP can now have a single driver built for
host and device roles.

DWC3 got support for two new HW platforms: Exynos7
and AMD.

The Broadcom USB 3.0 Device Controller IP is now
supported and so is PLX USB338x, which means DWC3
has lost is badge as the only USB 3.0 peripheral
IP supported on Linux.

Thanks for Tony Lindgren's work, we can now have
a distro-like kernel where all MUSB glue layers
can be built into the same kernel (statically
or dynamically linked) and it'll work in PIO (DMA
will come probably on v3.20).

Other than these, the usual set of cleanups and
non-critical fixes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-25 09:31:14 -08:00
Vivek Gautam 556186a02c phy: exynos7-usbdrd: Update dependency for ARCH_EXYNOS
This PHY controller is also present on Exynos7 platform
in arch-exynos family.
So PHY_EXYNOS5_USBDRD should now depend on ARCH_EXYNOS.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-22 14:08:09 +05:30
Vivek Gautam a6867836db phy: exynos5-usbdrd: Add facility for VBUS-BOOST-5V supply
Some Exynos boards have a separate regulator controlling a
Boost 5V supply which goes as input for VBUS regulator.
So adding a control for the same in driver, to enable
vbus supply on the port.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-22 14:08:09 +05:30
Vivek Gautam 9bde18c1b5 phy: exynos5-usbdrd: Add pipe-clk, utmi-clk and itp-clk support
Exynos7 SoC has now separate gate control for 125MHz pipe3 phy
clock, as well as 60MHz utmi phy clock.
Additionally, separate gate control is available for the clock
used for ITP (Isochronous Transfer Packet) generation.

So get the same and control in the phy-exynos5-usbdrd driver.

Suggested-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-22 14:08:09 +05:30
Heikki Krogerus dbc98635e0 phy: remove the old lookup method
The users of the old method are now converted to the new one.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
[ kishon@ti.com : made phy-berlin-usb.c and phy-miphy28lp.c to use the updated
		  devm_phy_create API.]
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-22 13:58:39 +05:30
Heikki Krogerus 61211b1bda phy: twl4030: use the new lookup method
Creates the lookup separately. Hard coding the consumer as
it can't be anything else except musb.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-22 13:58:31 +05:30
Heikki Krogerus b7bc15b98e phy: improved lookup method
Separates registration of the phy and the lookup. The method
is copied from clkdev.c,

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-21 19:48:50 +05:30
Antoine Tenart 13ebb68cb5 phy: add the Berlin USB PHY driver
Add the driver driving the Marvell Berlin USB PHY. This allows to
initialize the PHY and to use it from the USB driver later.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-21 19:48:50 +05:30
Sebastian Hesselbarth 8203f8b461 phy: berlin-sata: Add support for BG2 SATA PHY
Berlin BG2 also has a SATA PHY compatible with the current driver
except different PHY_BASE. Add a new compatible to the driver
reflecting the different PHY_BASE.

Acked-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-13 11:49:43 +05:30
Sebastian Hesselbarth a98d41d6a1 phy: berlin-sata: Move PHY_BASE into private data struct
Currently, Berlin SATA PHY driver assumes PHY_BASE address being
constant. While this PHY_BASE is correct for BG2Q, older BG2 PHY_BASE
is different. Prepare the driver for BG2 support by moving the phy_base
into private driver data.

Acked-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-13 11:49:43 +05:30
Roman Byshko 6827a46f59 phy: sun4i: add support for USB phy0
The driver for sun4i USB phys currently supports
only phy1 and phy2 which are used for USB host
controllers. This patch adds support for USB phy0,
which is used by the musb hdrc USB controller.

Signed-off-by: Roman Byshko <rbyshko@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-13 11:49:23 +05:30
Kishon Vijay Abraham I 491e049064 phy: phy-core: use the np present in of_phandle_args to get the PHY
Instead of using the node pointer of the PHY provider and then scanning its
child nodes to get a reference to the PHY, directly use the node pointer
present in of_phandle_args to get a reference to the PHY.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-12 18:40:13 +05:30
Gabriel FERNANDEZ 28ba384dc5 phy: miphy28lp: Tune tx impedance across Soc cuts
This patch to compensate tx impedance (Sata, PCIe)
depending on Soc cuts the kernel is built for.

Signed-off-by: Giuseppe Condorelli <giuseppe.condorelli@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-12 18:40:13 +05:30
Gabriel FERNANDEZ a2108dee3c phy: miphy28lp: Add SSC support for PCIE
SSC is the technique of modulating the operating frequency of a signal
slightly to spread its radiated emissions over a range of frequencies.
This reduction in the maximum emission for a given frequency helps meet
radiated emission requirements.
These settings are applicable for PCIE with Internal clock.

Signed-off-by: Harsh Gupta <harsh.gupta@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-12 18:40:12 +05:30
Gabriel FERNANDEZ 2b041b27a8 phy: miphy28lp: Add SSC support for SATA
This patch to tune on/off the ssc on miphy sata setup.
User can now enable ssc via dt blob, it is useful to reduce
effects of EMI.

Signed-off-by: Giuseppe Condorelli <giuseppe.condorelli@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-12 18:40:12 +05:30
Gabriel FERNANDEZ 2c14e9be0c phy: miphy28lp: Provide support for the MiPHY28lp Generic PHY
The MiPHY28lp is a Generic PHY which can serve various SATA or PCIe
or USB3 devices.

Signed-off-by: alexandre torgue <alexandre.torgue@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-12 18:40:12 +05:30
Felipe Balbi 8b9ca2767b phy: twl4030: Fix build breakage
commit e47d925 (usb: move the OTG state
from the USB PHY to the OTG structure) moved
the OTG state field from struct usb_phy to
struct usb_otg but, even though I fixed many
other build breakages, I still missed one
on phy-twl4030-usb.c.

Fix the build breakage now.

While at that, also a build warning introduced
by the same commit.

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-10 17:19:34 -06:00
Oussama Ghorbel f20531a9aa phy: omap-usb2: Enable runtime PM of omap-usb2 phy properly
The USB OTG port does not work since v3.16 on omap platform.
This is a regression introduced by the commit
eb82a3d846 (phy: omap-usb2: Balance pm_runtime_enable() on probe failure
 and remove).
This because the call to pm_runtime_enable() function is moved after the
call to devm_phy_create() function, which has side effect since later in
the subsequent calls of devm_phy_create() there is a check with
pm_runtime_enabled() to configure few things.

Fixes: eb82a3d846
Signed-off-by: Oussama Ghorbel <ghorbel@pivasoftware.com>
Tested-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-05 14:34:06 -08:00
Antoine Tenart 19c1eac268 usb: rename phy to usb_phy in OTG
This patch prepares the introduction of the generic PHY support in the
USB OTG common functions. The USB PHY member of the OTG structure is
renamed to 'usb_phy' and modifications are done in all drivers accessing
it. Renaming this pointer will allow to keep the compatibility for USB
PHY drivers.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:01:25 -06:00
Antoine Tenart e47d92545c usb: move the OTG state from the USB PHY to the OTG structure
Before using the PHY framework instead of the USB PHY one, we need to
move the OTG state into another place, since it won't be available when
USB PHY isn't used. This patch moves the OTG state into the OTG
structure, and makes all the needed modifications in the drivers
using the OTG state.

[ balbi@ti.com : fix build regressions with phy-tahvo.c, musb_dsps.c,
		phy-isp1301-omap, and chipidea's debug.c ]

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:01:25 -06:00
Peter Griffin 4f0eb5d7ef phy: remove .owner field for drivers using module_platform_driver
This patch removes the superflous .owner field for drivers which
use the module_platform_driver or platform_driver_register api,
as this is overriden in __platform_driver_register.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:34 +05:30
Vivek Gautam a5ec598650 phy: exynos-dp-video: Use syscon support to control pmu register
Currently the DP_PHY_ENABLE register is mapped in the driver,
and accessed to control power to the PHY.
With mfd-syscon and regmap interface available at our disposal,
it's wise to use that instead of using a 'reg' property for the
controller and allocating a memory resource for that.

To facilitate this, we have added another compatible string
for Exynso5420 SoC to acquire driver data which contains
different DP-PHY-CONTROL register offset.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:34 +05:30
Peter Griffin 3f8da2e36c phy: phy-stih41x-usb: Add usb phy support for STiH41x SoCs.
This driver adds support for USB (1.1 and 2.0) phy for STiH415 and
STiH416 System-On-Chips from STMicroelectronics.

Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:33 +05:30
Peter Griffin 89ae1f5d4c phy: phy-stih407-usb: Add usb picoPHY driver found on stih407 SoC family
This is the generic phy driver for the picoPHY ports used by the
USB2 and USB3 Host controllers when controlling usb2/1.1 devices. It
is found on STiH407 SoC family from STMicroelectronics.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:33 +05:30
Tony Lindgren dcc35b2160 usb: phy: twl4030-usb: Use mutex instead of spinlock for protecting the data
We're using threaded irq on a I2C bus and we're sleeping in
twl4030_usb_irq() as it calls twl4030_usb_linkstat() which
calls the i2c functions. If we ever need to lock for longer
I2C transaction sequences a mutex will allow us to do that
easily.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:33 +05:30
Tony Lindgren 48f48e172c usb: phy: twl4030-usb: Remove asleep and rely on runtime PM
There's no longer need for tracking the phy state in the driver
with asleep, we can now rely on runtime PM.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:33 +05:30
Tony Lindgren bad8e33582 usb: phy: twl4030-usb: Move code from twl4030_phy_power to the runtime PM calls
We don't need twl4030_phy_power() any longer now that we have
the runtime PM calls. Let's get rid of it as it's confusing.
No functional changes, just move the code and use res instead
of ret as we are not returning that value.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Tony Lindgren 62dc5769bb usb: phy: twl4030-usb: Simplify phy init to use runtime PM
We can now let the interrupt and delayed work do all that's
needed with runtime PM.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Tony Lindgren bb419402cc usb: phy: twl4030-usb: Remove unused irq_enabled
It's not being used any longer.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Peter Griffin 25451e5cb9 phy: phy-spear1340-miphy: Use module_platform_driver to register driver.
Using the module_platform_driver macro to register the driver as this gets
rid of a lot of the boilerplate code.

Also remove .owner field as this gets overridden in __platform_driver_register.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Peter Griffin 7e65e9c94a phy: phy-spear1310-miphy: Use module_platform_driver to register driver.
Use the module_platform_driver macro to register the driver as this gets
rid of a lot of the boilerplate code.

Also remove .owner field as this gets overridden in __platform_driver_register.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Peter Griffin 556bdebb3b phy: phy-spear1340-miphy: Remove unncessary site specific OOM messages
The site specific OOM messages are unncessary, because they duplicate
messages from the memory subsystem which include dump_stack().

Removing these superflous messages makes the kernel smaller. A discussion
here http://patchwork.ozlabs.org/patch/324158/ found that all error paths
from kzalloc will print a error message, and that any error path which maybe
found which doesn't would be considered a bug in kzalloc.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Peter Griffin 0e71e23563 phy: phy-spear1310-miphy: Remove unncessary site specific OOM messages
The site specific OOM messages are unncessary, because they duplicate
messages from the memory subsystem which include dump_stack().

Removing these superflous messages makes the kernel smaller. A discussion
here http://patchwork.ozlabs.org/patch/324158/ found that all error paths
from kzalloc will print a error message, and that any error path which maybe
found which doesn't would be considered a bug in kzalloc.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Peter Griffin 3a4cfcbbaf phy: phy-ti-pipe3: Remove unncessary site specific OOM messages
The site specific OOM messages are unncessary, because they duplicate
messages from the memory subsystem which include dump_stack().

Removing these superflous messages makes the kernel smaller. A discussion
here http://patchwork.ozlabs.org/patch/324158/ found that all error paths
from kzalloc will print a error message, and that any error path which maybe
found which doesn't would be considered a bug in kzalloc.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Peter Griffin 0b68253d9f phy: phy-omap-usb2: Remove unncessary site specific OOM messages
The site specific OOM messages are unncessary, because they duplicate
messages from the memory subsystem which include dump_stack().

Removing these superflous messages makes the kernel smaller. A discussion
here http://patchwork.ozlabs.org/patch/324158/ found that all error paths
from kzalloc will print a error message, and that any error path which maybe
found which doesn't would be considered a bug in kzalloc.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:32 +05:30
Peter Griffin 1f8de849cf phy: phy-mvebu-sata: Add missing error check for devm_kzalloc
Currently this driver is missing a check on the return value of devm_kzalloc,
which would cause a NULL pointer dereference in a OOM situation.

This patch adds the aformentioned missing check.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:31 +05:30
Peter Griffin 437a6bc478 phy: phy-omap-control: Remove unncessary site specific OOM messages
The site specific OOM messages are unncessary, because they duplicate
messages from the memory subsystem which include dump_stack().

Removing these superflous messages makes the kernel smaller. A discussion
here http://patchwork.ozlabs.org/patch/324158/ found that all error paths
from kzalloc will print a error message, and that any error path which maybe
found which doesn't would be considered a bug in kzalloc.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:31 +05:30
Sergei Shtylyov 1233f59f74 phy: Renesas R-Car Gen2 PHY driver
This PHY, though formally being a part of Renesas USBHS controller, contains the
UGCTRL2 register that controls multiplexing of the USB ports (Renesas calls them
channels) to the different USB controllers: channel 0 can be connected to either
PCI EHCI/OHCI or USBHS controllers, channel 2 can be connected to PCI EHCI/OHCI
or xHCI controllers.

This is a new driver for this USB PHY currently already supported under drivers/
usb/phy/. The reason for writing the new driver was the requirement that the
multiplexing  of USB channels to the controller be dynamic, depending on what
USB drivers  are loaded,  rather than static as provided by the old driver. The
infrastructure provided by drivers/phy/phy-core.c  seems to fit that purpose
ideally. The new driver only  supports device tree probing  for now.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-24 15:18:31 +05:30
Bartlomiej Zolnierkiewicz 7652d35f98 phy: spear1340-miphy: fix driver dependencies
ST SPEAR1340-MIPHY support should be available only on
ST SPEAr1340 machine.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Mohit Kumar <mohit.kumar@st.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-12 11:35:31 +05:30
Bartlomiej Zolnierkiewicz 6100a7c1e9 phy: spear1310-miphy: fix driver dependencies
ST SPEAR1310-MIPHY support should be available only on
ST SPEAr1310 machine.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Mohit Kumar <mohit.kumar@st.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-12 11:35:31 +05:30
Lee Jones a6cc1b9478 phy: miphy365x: Fix off-by-one error
We index the RX/TX speed select values in the following way:

  rx_tx_spd[miphy_phy->sata_gen];

However rx_tx_spd[] starts at index zero and the SATA_GENx's start
at one.  In this patch we pad out the first element in rx_tx_spd[]
in an attempt to realign the values.

Cc: Alexandre Torgue <alexandre.torgue@st.com>
Reported-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-09-12 11:35:31 +05:30
Lee Jones fbb1a77003 phy: miphy365x: Select GENERIC_PHY instead of depending on it
Enabling GENERIC_PHY in the shared (by most ARM sub-architectures)
defconfig multi_v7_defconfig is prohibited.  Instead, we'll enable
it from the Kconfig whenever PHY_MIPHY365X is enabled.

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-08-28 11:17:43 +05:30
Sjoerd Simons 4cdcd14dc9 phy: exynos5-usbdrd: Add MODULE_DEVICE_TABLE entry
Add a MODULE_DEVICE_TABLE call for OF match tables. This allows the
module to be autoloaded based on devicetree information.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-08-28 11:17:43 +05:30
Tony Lindgren 85601b8d81 usb: phy: twl4030-usb: Fix lost interrupts after ID pin goes down
Commit 249751f223 ("usb: phy: twl4030-usb: poll for ID disconnect")
added twl4030_id_workaround_work() to deal with lost interrupts
after ID pin goes down. Looks like commit f1ddc24c9e ("usb: phy:
twl4030-usb: remove *set_suspend* and *phy_init* ops") changed
things around for the generic phy framework, and delayed work no
longer got called except initially during boot.

The PHY connect and disconnect interrupts for twl4030-usb are not
working after disconnecting a USB-A cable from the board, and the
deeper idle states for omap are blocked as the USB controller
stays busy.

The issue can be solved by calling delayed work from twl4030_usb_irq()
when ID pin is down and the PHY is not asleep like we already do
in twl4030_id_workaround_work().

But as both twl4030_usb_irq() and twl4030_id_workaround_work()
already do pretty much the same thing, let's call twl4030_usb_irq()
from twl4030_id_workaround_work() instead of adding some more
duplicate code. We also must call sysfs_notify() only when we have
an interrupt and not from the delayed work as notified by
Grazvydas Ignotas <notasas@gmail.com>.

Fixes: f1ddc24c9e ("usb: phy: twl4030-usb: remove *set_suspend* and *phy_init* ops")
Cc: stable@vger.kernel.org # v3.13+
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-08-24 17:47:54 +05:30
Tony Lindgren 96be39ab34 usb: phy: twl4030-usb: Fix regressions to runtime PM on omaps
Commit 30a70b026b ("usb: musb: fix obex in g_nokia.ko causing kernel
panic") attempted to fix runtime PM handling for PHYs that are on the
I2C bus. Commit 3063a12be2 ("usb: musb: fix PHY power on/off") then
changed things around to enable of PHYs that rely on runtime PM.

These changes however broke idling of the PHY and causes at least
100 mW extra power consumption on omaps, which is a lot with
the idle power consumption being below 10 mW range on many devices.

As calling phy_power_on/off from runtime PM calls in the USB
causes complicated issues with I2C connected PHYs, let's just let
the PHY do it's own runtime PM as needed. This leaves out the
dependency between PHYs and USB controller drivers for runtime
PM.

Let's fix the regression for twl4030-usb by adding minimal runtime
PM support. This allows idling the PHY on disconnect.

Note that we are changing to use standard runtime PM handling
for twl4030_phy_init() as that function just checks the state
and does not initialize the PHY. The PHY won't get initialized
until in twl4030_phy_power_on().

Fixes: 30a70b026b ("usb: musb: fix obex in g_nokia.ko causing kernel panic")
Fixes: 3063a12be2 ("usb: musb: fix PHY power on/off")
Cc: stable@vger.kernel.org # v3.15+
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-08-24 17:47:53 +05:30
Linus Torvalds 10c8e05620 ARM: SoC driver changes for 3.17
A handful of driver-related changes. We've had a bunch of them going in through
 other branches as well, so it's only a part of what we really have this release.
 
 Larger pieces are:
 
 * Removal of a now unused PWM driver for atmel
   - This includes AVR32 changes that have been appropriately acked.
 * Performance counter support for the arm CCN interconnect
 * OMAP mailbox driver cleanups and consolidation
 * PCI and SATA PHY drivers for SPEAr 13xx platforms
 * Redefinition (with backwards compatibility!) of PCI DT bindings for Tegra to
   better model regulators/power.
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Merge tag 'drivers-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver changes from Olof Johansson:
 "A handful of driver-related changes.  We've had a bunch of them going
  in through other branches as well, so it's only a part of what we
  really have this release.

  Larger pieces are:

   - Removal of a now unused PWM driver for atmel
     [ This includes AVR32 changes that have been appropriately acked ]
   - Performance counter support for the arm CCN interconnect
   - OMAP mailbox driver cleanups and consolidation
   - PCI and SATA PHY drivers for SPEAr 13xx platforms
   - Redefinition (with backwards compatibility!) of PCI DT bindings for
     Tegra to better model regulators/power"

Note: this merge also fixes up the semantic conflict with the new
calling convention for devm_phy_create(), see commit f0ed817638 ("phy:
core: Let node ptr of PHY point to PHY and not of PHY provider") that
came in through Greg's USB tree.

Semantic merge patch by Stephen Rothwell <sfr@canb.auug.org.au> through
the next tree.

* tag 'drivers-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
  bus: arm-ccn: Fix error handling at event allocation
  mailbox/omap: add a parent structure for every IP instance
  mailbox/omap: remove the private mailbox structure
  mailbox/omap: consolidate OMAP mailbox driver
  mailbox/omap: simplify the fifo assignment by using macros
  mailbox/omap: remove omap_mbox_type_t from mailbox ops
  mailbox/omap: remove OMAP1 mailbox driver
  mailbox/omap: use devm_* interfaces
  bus: ARM CCN: add PERF_EVENTS dependency
  bus: ARM CCN PMU driver
  PCI: spear: Remove spear13xx_pcie_remove()
  PCI: spear: Fix Section mismatch compilation warning for probe()
  ARM: tegra: Remove legacy PCIe power supply properties
  PCI: tegra: Remove deprecated power supply properties
  PCI: tegra: Implement accurate power supply scheme
  ARM: SPEAr13xx: Update defconfigs
  ARM: SPEAr13xx: Add pcie and miphy DT nodes
  ARM: SPEAr13xx: Add bindings and dt node for misc block
  ARM: SPEAr13xx: Fix static mapping table
  phy: Add drivers for PCIe and SATA phy on SPEAr13xx
  ...
2014-08-08 11:34:32 -07:00
Linus Torvalds b3345d7c57 ARM: SoC platform changes for 3.17
This is the bulk of new SoC enablement and other platform changes for 3.17:
 
 * Samsung S5PV210 has been converted to DT and multiplatform
 * Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms
 * Kirkwood, one of the popular Marvell platforms, is folded into the
   mvebu platform code, removing mach-kirkwood.
 * Hwmod data for TI AM43xx and DRA7 platforms.
 * More additions of Renesas shmobile platform support
 * Removal of plat-samsung contents that can be removed with S5PV210 being
   multiplatform/DT-enabled and the other two old platforms being removed.
 
 New platforms (most with only basic support right now):
 
 * Hisilicon X5HD2 settop box chipset is introduced
 * Mediatek MT6589 (mobile chipset) is introduced
 * Broadcom BCM7xxx settop box chipset is introduced
 
 + as usual a lot other pieces all over the platform code.
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Merge tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "This is the bulk of new SoC enablement and other platform changes for
  3.17:

   - Samsung S5PV210 has been converted to DT and multiplatform
   - Clock drivers and bindings for some of the lower-end i.MX 1/2
     platforms
   - Kirkwood, one of the popular Marvell platforms, is folded into the
     mvebu platform code, removing mach-kirkwood
   - Hwmod data for TI AM43xx and DRA7 platforms
   - More additions of Renesas shmobile platform support
   - Removal of plat-samsung contents that can be removed with S5PV210
     being multiplatform/DT-enabled and the other two old platforms
     being removed

  New platforms (most with only basic support right now):

   - Hisilicon X5HD2 settop box chipset is introduced
   - Mediatek MT6589 (mobile chipset) is introduced
   - Broadcom BCM7xxx settop box chipset is introduced

  + as usual a lot other pieces all over the platform code"

* tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits)
  ARM: hisi: remove smp from machine descriptor
  power: reset: move hisilicon reboot code
  ARM: dts: Add hix5hd2-dkb dts file.
  ARM: debug: Rename Hi3716 to HIX5HD2
  ARM: hisi: enable hix5hd2 SoC
  ARM: hisi: add ARCH_HISI
  MAINTAINERS: add entry for Broadcom ARM STB architecture
  ARM: brcmstb: select GISB arbiter and interrupt drivers
  ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs
  ARM: configs: enable SMP in bcm_defconfig
  ARM: add SMP support for Broadcom mobile SoCs
  Documentation: arm: misc updates to Marvell EBU SoC status
  Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC
  ARM: mvebu: fix build without platforms selected
  ARM: mvebu: add cpuidle support for Armada 38x
  ARM: mvebu: add cpuidle support for Armada 370
  cpuidle: mvebu: add Armada 38x support
  cpuidle: mvebu: add Armada 370 support
  cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7
  ARM: mvebu: export the SCU address
  ...
2014-08-08 11:14:29 -07:00
Lee Jones 7ebdb52e19 phy: miphy365x: Represent each PHY channel as a DT subnode
This has the added advantages of being able to enable/disable each
of the channels as simply as enabling/disabling the DT node.

Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-07-22 12:46:43 +05:30
Lee Jones 6e877fedb1 phy: miphy365x: Provide support for the MiPHY356x Generic PHY
The MiPHY365x is a Generic PHY which can serve various SATA or PCIe
devices. It has 2 ports which it can use for either; both SATA, both
PCIe or one of each in any configuration.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-07-22 12:46:37 +05:30
Kumar Gala 4f6160d408 phy: qcom: Add driver for QCOM IPQ806x SATA PHY
Add a PHY driver for uses with AHCI based SATA controller driver on the
IPQ806x family of SoCs.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-07-22 12:46:12 +05:30
Srinivas Kandagatla 175f02ebdf phy: qcom-apq8064: fix possible timeout without check
This patch fixes a possible timeout in poll loop without actually
checking the register before return. In theory the there is a possibility
of loop being scheduled after a long lock/delay, which would then force
the loop to exit without actually checking the register.

Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-07-22 12:46:12 +05:30
Kishon Vijay Abraham I f0ed817638 phy: core: Let node ptr of PHY point to PHY and not of PHY provider
In case of multi-phy PHY providers, each PHY should be modeled as a sub
node of the PHY provider. Then each PHY will have a different node pointer
(node pointer of sub node) than that of PHY provider. Added this provision
in the PHY core.
Also fixed all drivers to use the updated API.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
2014-07-22 12:46:11 +05:30
Kishon Vijay Abraham I 2a4c37016c phy: core: Fix of_phy_provider_lookup to return PHY provider for sub node
Fixed of_phy_provider_lookup to return 'phy_provider' if _of_phy_get
passes the node pointer of the sub-node of phy provider node. This is
needed when phy provider implements multiple PHYs and each PHY is
modelled as the sub-node of PHY provider device node.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
2014-07-22 12:46:11 +05:30
Antoine Ténart 942a31b521 phy: add a driver for the Berlin SATA PHY
The Berlin SoC has a two SATA ports. Add a PHY driver to handle them.

The mode selection can let us think this PHY can be configured to fit
other purposes. But there are reasons to think the SATA mode will be
the only one usable: the PHY registers are only accessible indirectly
through two registers in the SATA range, the PHY seems to be integrated
and no information tells us the contrary. For these reasons, make the
driver a SATA PHY driver.

Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-07-22 12:46:11 +05:30
Andrew Lunn 74d64b59b4 phy: Remove ARCH_KIRKWOOD dependency
mach-kirkwood has been removed, now that kirkwood lives in mach-mvebu.
Depend on MACH_KIRKWOOD, which will be set when these SoCs are built
as part of mach-mvebv.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-07-22 12:46:11 +05:30
Srinivas Kandagatla 1de990d8a1 phy: qcom: Add driver for QCOM APQ8064 SATA PHY
Add a PHY driver for uses with AHCI based SATA controller driver on the
APQ8064 family of SoCs.

This patch is a forward port from Qualcomm's v3.4 andriod kernel.

Tested on IFC6410 board.

CC: Sujit Reddy Thumma <sthumma@codeaurora.org>
Tested-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-07-22 12:46:11 +05:30