Commit Graph

30 Commits

Author SHA1 Message Date
Rob Herring 7559e7572c phy: Explicitly include correct DT includes
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for drivers/phy/phy-can-transceiver.c
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20230714174841.4061919-1-robh@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-07-17 11:52:56 +05:30
Uwe Kleine-König c7ac6dff31 phy: renesas: phy-rcar-gen3-usb2: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230307115900.2293120-17-u.kleine-koenig@pengutronix.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-03-20 18:14:57 +05:30
Biju Das b0512a6ec0 phy: renesas: phy-rcar-gen3-usb2: Add USB2.0 PHY support for RZ/G2L
This patch adds USB2.0 PHY support for RZ/G2L SoC.

We need to use a different compatible string due to some differences
with R-Car Gen3 USB2.0 PHY. It uses line ctrl register for OTG_ID
pin changes and different OTG-BC interrupt bit for device recognition.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> # on R-Car
Link: https://lore.kernel.org/r/20210727185527.19907-4-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-08-06 18:12:30 +05:30
Wang Li 51e339deab phy: renesas: rcar-gen3-usb2: disable runtime pm in case of failure
pm_runtime_enable() will decrease power disable depth. Thus a pairing
increment is needed on the error handling path to keep it balanced.

Fixes: 5d8042e95f ("phy: rcar-gen3-usb2: Add support for r8a77470")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Li <wangli74@huawei.com>
Link: https://lore.kernel.org/r/20201126024412.4046845-1-wangli74@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-12-05 13:36:12 +05:30
Chunfeng Yun 0b5604affb phy: renesas: convert to devm_platform_ioremap_resource
Use devm_platform_ioremap_resource to simplify code

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1604642930-29019-12-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-11-16 12:47:47 +05:30
Yoshihiro Shimoda b59aeb1a59 phy: renesas: rcar-gen3-usb2: exit if request_irq() failed
To avoid unexpected behaviors, it's better to exit if request_irq()
failed.

Suggested-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1594986297-12434-3-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-20 12:03:44 +05:30
Yoshihiro Shimoda 08b0ad375c phy: renesas: rcar-gen3-usb2: move irq registration to init
If CONFIG_DEBUG_SHIRQ was enabled, r8a77951-salvator-xs could boot
correctly. If we appended "earlycon keep_bootcon" to the kernel
command like, we could get kernel log like below.

    SError Interrupt on CPU0, code 0xbf000002 -- SError
    CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.8.0-rc3-salvator-x-00505-g6c843129e6faaf01 #785
    Hardware name: Renesas Salvator-X 2nd version board based on r8a77951 (DT)
    pstate: 60400085 (nZCv daIf +PAN -UAO BTYPE=--)
    pc : rcar_gen3_phy_usb2_irq+0x14/0x54
    lr : free_irq+0xf4/0x27c

This means free_irq() calls the interrupt handler while PM runtime
is not getting if DEBUG_SHIRQ is enabled and rcar_gen3_phy_usb2_probe()
failed. To fix the issue, move the irq registration place to
rcar_gen3_phy_usb2_init() which is ready to handle the interrupts.

Note that after the commit 549b6b55b0 ("phy: renesas: rcar-gen3-usb2:
enable/disable independent irqs") which is merged into v5.2, since this
driver creates multiple phy instances, needs to check whether one of
phy instances is initialized. However, if we backport this patch to v5.1
or less, we don't need to check it because such kernel have single
phy instance.

Reported-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: 9f391c574e ("phy: rcar-gen3-usb2: add runtime ID/VBUS pin detection")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1594986297-12434-2-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-20 12:03:44 +05:30
Yoshihiro Shimoda 4bd5ead82d phy: renesas: rcar-gen3-usb2: Fix sysfs interface of "role"
Since the role_store() uses strncmp(), it's possible to refer
out-of-memory if the sysfs data size is smaller than strlen("host").
This patch fixes it by using sysfs_streq() instead of strncmp().

Reported-by: Pavel Machek <pavel@denx.de>
Fixes: 9bb86777fb ("phy: rcar-gen3-usb2: add sysfs for usb role swap")
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-10-23 13:20:37 +05:30
Geert Uytterhoeven c9dfadeee8 phy: renesas: rcar-gen3-usb2: Use platform_get_irq_optional() for optional irq
As platform_get_irq() now prints an error when the interrupt does not
exist, a scary warning may be printed for an optional interrupt:

    phy_rcar_gen3_usb2 ee0a0200.usb-phy: IRQ index 0 not found

Fix this by calling platform_get_irq_optional() instead.

Fixes: 7723f4c5ec ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-10-23 13:20:27 +05:30
Yoshihiro Shimoda e6839c31a6 phy: renesas: rcar-gen3-usb2: Disable clearing VBUS in over-current
The hardware manual should be revised, but the initial value of
VBCTRL.OCCLREN is set to 1 actually. If the bit is set, the hardware
clears VBCTRL.VBOUT and ADPCTRL.DRVVBUS registers automatically
when the hardware detects over-current signal from a USB power switch.
However, since the hardware doesn't have any registers which
indicates over-current, the driver cannot handle it at all. So, if
"is_otg_channel" hardware detects over-current, since ADPCTRL.DRVVBUS
register is cleared automatically, the channel cannot be used after
that.

To resolve this behavior, this patch sets the VBCTRL.OCCLREN to 0
to keep ADPCTRL.DRVVBUS even if the "is_otg_channel" hardware
detects over-current. (We assume a USB power switch itself protects
over-current and turns the VBUS off.)

This patch is inspired by a BSP patch from Kazuya Mizuguchi.

Fixes: 1114e2d317 ("phy: rcar-gen3-usb2: change the mode to OTG on the combined channel")
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-08-26 17:20:02 +05:30
Yoshihiro Shimoda 5c9dc6379f phy: renesas: rcar-gen3-usb2: fix imbalance powered flag
The powered flag should be set for any other phys anyway. Also
the flag should be locked by the channel. Otherwise, after we have
revised the device tree for the usb phy, the following warning
happened during a second system suspend. And if the driver doesn't
lock the flag, an imbalance is possible when enabling the regulator
during system resume. So, this patch fixes the issues.

< The warning >
[   56.026531] unbalanced disables for USB20_VBUS0
[   56.031108] WARNING: CPU: 3 PID: 513 at drivers/regulator/core.c:2593 _regula
tor_disable+0xe0/0x1c0
[   56.040146] Modules linked in: rcar_du_drm rcar_lvds drm_kms_helper drm drm_p
anel_orientation_quirks vsp1 videobuf2_vmalloc videobuf2_dma_contig videobuf2_me
mops videobuf2_v4l2 videobuf2_common videodev snd_soc_rcar renesas_usbhs snd_soc
_audio_graph_card media snd_soc_simple_card_utils crct10dif_ce renesas_usb3 snd_
soc_ak4613 rcar_fcp pwm_rcar usb_dmac phy_rcar_gen3_usb3 pwm_bl ipv6
[   56.074047] CPU: 3 PID: 513 Comm: kworker/u16:19 Not tainted 5.2.0-rc3-00001-
g5f20a19 #6
[   56.082129] Hardware name: Renesas Salvator-X board based on r8a7795 ES2.0+ (
DT)
[   56.089524] Workqueue: events_unbound async_run_entry_fn
[   56.094832] pstate: 40000005 (nZcv daif -PAN -UAO)
[   56.099617] pc : _regulator_disable+0xe0/0x1c0
[   56.104054] lr : _regulator_disable+0xe0/0x1c0
[   56.108489] sp : ffff0000121c3ae0
[   56.111796] x29: ffff0000121c3ae0 x28: 0000000000000000
[   56.117102] x27: 0000000000000000 x26: ffff000010fe0e60
[   56.122407] x25: 0000000000000002 x24: 0000000000000001
[   56.127712] x23: 0000000000000002 x22: ffff8006f99d4000
[   56.133017] x21: ffff8006f99cc000 x20: ffff8006f9846800
[   56.138322] x19: ffff8006f9846800 x18: ffffffffffffffff
[   56.143626] x17: 0000000000000000 x16: 0000000000000000
[   56.148931] x15: ffff0000112f96c8 x14: ffff0000921c37f7
[   56.154235] x13: ffff0000121c3805 x12: ffff000011312000
[   56.159540] x11: 0000000005f5e0ff x10: ffff0000112f9f20
[   56.164844] x9 : ffff0000112d3018 x8 : 00000000000001ad
[   56.170149] x7 : 00000000ffffffcc x6 : ffff8006ff768180
[   56.175453] x5 : ffff8006ff768180 x4 : 0000000000000000
[   56.180758] x3 : ffff8006ff76ef10 x2 : ffff8006ff768180
[   56.186062] x1 : 3d2eccbaead8fb00 x0 : 0000000000000000
[   56.191367] Call trace:
[   56.193808]  _regulator_disable+0xe0/0x1c0
[   56.197899]  regulator_disable+0x40/0x78
[   56.201820]  rcar_gen3_phy_usb2_power_off+0x3c/0x50
[   56.206692]  phy_power_off+0x48/0xd8
[   56.210263]  usb_phy_roothub_power_off+0x30/0x50
[   56.214873]  usb_phy_roothub_suspend+0x1c/0x50
[   56.219311]  hcd_bus_suspend+0x13c/0x168
[   56.223226]  generic_suspend+0x4c/0x58
[   56.226969]  usb_suspend_both+0x1ac/0x238
[   56.230972]  usb_suspend+0xcc/0x170
[   56.234455]  usb_dev_suspend+0x10/0x18
[   56.238199]  dpm_run_callback.isra.6+0x20/0x68
[   56.242635]  __device_suspend+0x110/0x308
[   56.246637]  async_suspend+0x24/0xa8
[   56.250205]  async_run_entry_fn+0x40/0xf8
[   56.254210]  process_one_work+0x1e0/0x320
[   56.258211]  worker_thread+0x40/0x450
[   56.261867]  kthread+0x124/0x128
[   56.265094]  ret_from_fork+0x10/0x18
[   56.268661] ---[ end trace 86d7ec5de5c517af ]---
[   56.273290] phy phy-ee080200.usb-phy.10: phy poweroff failed --> -5

Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: 549b6b55b0 ("phy: renesas: rcar-gen3-usb2: enable/disable independent irqs")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-06-21 10:51:58 +05:30
Yoshihiro Shimoda 549b6b55b0 phy: renesas: rcar-gen3-usb2: enable/disable independent irqs
Since the previous code enabled/disabled the irqs both OHCI and EHCI,
it is possible to cause unexpected interruptions. To avoid this,
this patch creates multiple phy instances from phandle and
enables/disables independent irqs by the instances.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Tested-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-04-17 14:13:14 +05:30
Yoshihiro Shimoda 92fec1c27c phy: renesas: rcar-gen3-usb2: Use pdev's device pointer on dev_vdbg()
To implement multiple phy instances in the future, this patch uses
pdev's device pointer on dev_vdbg() instead of the phy's device
pointer.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-04-17 14:13:13 +05:30
Biju Das 5d8042e95f phy: rcar-gen3-usb2: Add support for r8a77470
This patch adds support for r8a77470 (RZ/G1C). We can reuse this driver for
initializing timing/interrupt generation registers.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-04-17 14:13:11 +05:30
Yoshihiro Shimoda 72c0339c11 phy: renesas: rcar-gen3-usb2: follow the hardware manual procedure
This patch modifies rcar_gen3_init_otg() procedure to follow Figure
73.4 of "R-Car Series, 3rd Generation User's Manual: Hardware Rev.1.00".

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-12-12 10:01:38 +05:30
Yoshihiro Shimoda 979b519c7a phy: renesas: rcar-gen3-usb2: add is_otg_channel to use "role" sysfs
Even if a board doesn't have otg pins connection, this hardware can
change the role by a register setting. So, this patch adds
"is_otg_channel" for it.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25 16:10:12 +05:30
Yoshihiro Shimoda a602152c81 phy: renesas: rcar-gen3-usb2: add conditions for uses_otg_pins == false
If uses_otg_pins is set to false, this driver 1) should disable otg
related interruptions, and 2) should not get ID pin signal, to avoid
unexpected behaviors. So, this patch adds conditions for it.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25 16:10:11 +05:30
Yoshihiro Shimoda 73801b90a3 phy: renesas: rcar-gen3-usb2: change a condition "dr_mode"
This patch changes a condition about dr_mode. If a device node has
any dr_mode ("host", "peripheral" or "otg"), this driver allows to
set "is_otg_channel" to true. Also, this patch keeps the dr_mode
value for future use.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25 16:10:11 +05:30
Yoshihiro Shimoda 7ab0305d4d phy: renesas: rcar-gen3-usb2: unify OBINTEN handling
This patch unifies the OBINTEN handling to clean-up the code.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25 16:10:10 +05:30
Yoshihiro Shimoda 8dde0008ff phy: renesas: rcar-gen3-usb2: Check a property to use otg pins
Since All R-Car Gen3 SoCs have dedicated otg pins actually but
some boards don't use the otg pins (e.g. R-Car D3 Draak and R-Car E3
Ebisu), the driver should not choose SoC model base by using
rcar_gen3_phy_usb2_match_table's data. So, this patch checks a
"renesas,no-otg-pins" property to set the "uses_otg_pins".

Note that since r8a77995-draak.dts and r8a77990-ebisu.dts don't have
'dr_mode = "otg";' for now, if we apply this patch, no behavior
changes (the value of "uses_otg_pins" is false).

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25 16:10:10 +05:30
Yoshihiro Shimoda cfdc66348e phy: renesas: rcar-gen3-usb2: Rename has_otg_pins to uses_otg_pins
Since R-Car E3 and D3 have dedicated otg pins actually, "has_otg_pins"
is possible to misread in the future. So, this patch renames
has_otg_pins to uses_otg_pins.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25 16:10:09 +05:30
Yoshihiro Shimoda 09938ea9d1 phy: renesas: rcar-gen3-usb2: fix vbus_ctrl for role sysfs
This patch fixes and issue that the vbus_ctrl is disabled by
rcar_gen3_init_from_a_peri_to_a_host(), so a usb host cannot
supply the vbus.

Note that this condition will exit when the otg irq happens
even if we don't apply this patch.

Fixes: 9bb86777fb ("phy: rcar-gen3-usb2: add sysfs for usb role swap")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-25 16:10:09 +05:30
Wolfram Sang eee0e5daa7 phy: renesas: use SPDX identifier for Renesas drivers
Use SPDX identifier for Renesas drivers.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-09-10 14:28:07 +05:30
Yoshihiro Shimoda 44e42df6b9 phy: rcar-gen3-usb2: Add support for r8a77965
This patch adds support for r8a77965 (R-Car M3-N). This SoC has
dedicated pins.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-03-16 16:55:26 +05:30
Greg Kroah-Hartman 4dce3c4b9b Update extcon for 4.15
Detailed description for this pull request:
 1. Split out extcon header file for consumer and provider device
 : The extcon has two type of extcon devices as following.
 - 'extcon provider deivce' adds new extcon device and detect
 the state/properties of external connector. Also, it notifies the
 state/properties to the extcon consumer device.
 - 'extcon consumer device' gets the change state/properties
 from extcon provider device.
 
 Prior to that, include/linux/extcon.h contains all exported API
 for both provider and consumer device driver. To clarify the meaning
 of header file and to remove the wrong use-case on consumer device.
 - include/linux/extcon-provider.h includes API for the provider device driver.
 - include/linux/extcon.h includes the API for the consumer device driver.
 
 2. Support the SmartDock accessory on extcon-max77843.c device driver
 - Support the SmartDock accessory which detects following connectors
  at the same time.
  : USB host throught USB hub for mouse, keyboard and so on.
  : MHL connector for video output.
  : Charger connector for battery charging.
 - It tested with Unitek Y-2165 MHL+OTG Hub Smart Phone Dock.
 
 3. Fix the minor issue of extcon driver
 - Delete the unneeded initialization in extcon-max14577.
 - Make extcon_info static const in order to fix the warning.
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Merge tag 'extcon-next-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into usb-next

Chanwoo writes:

Update extcon for 4.15

Detailed description for this pull request:
1. Split out extcon header file for consumer and provider device
: The extcon has two type of extcon devices as following.
- 'extcon provider deivce' adds new extcon device and detect
the state/properties of external connector. Also, it notifies the
state/properties to the extcon consumer device.
- 'extcon consumer device' gets the change state/properties
from extcon provider device.

Prior to that, include/linux/extcon.h contains all exported API
for both provider and consumer device driver. To clarify the meaning
of header file and to remove the wrong use-case on consumer device.
- include/linux/extcon-provider.h includes API for the provider device driver.
- include/linux/extcon.h includes the API for the consumer device driver.

2. Support the SmartDock accessory on extcon-max77843.c device driver
- Support the SmartDock accessory which detects following connectors
 at the same time.
 : USB host throught USB hub for mouse, keyboard and so on.
 : MHL connector for video output.
 : Charger connector for battery charging.
- It tested with Unitek Y-2165 MHL+OTG Hub Smart Phone Dock.

3. Fix the minor issue of extcon driver
- Delete the unneeded initialization in extcon-max14577.
- Make extcon_info static const in order to fix the warning.
2017-10-27 12:36:06 +02:00
Yoshihiro Shimoda 9adaaa9e45 phy: rcar-gen3-usb2: add SoC-specific parameter for dedicated pins
This patch adds SoC-specific parameter to avoid reading/writing
specific registers wrongly if this driver runs on a SoC which doesn't
have dedicated pins (e.g. R-Car D3). This patch also changes the
value "has_otg" to "has_otg_pins" for slightly easier reading of
the code.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-23 11:19:26 +05:30
Yoshihiro Shimoda b56acc82f9 phy: rcar-gen3-usb2: use enum phy_mode in the role_store()
This patch modifies the role_store() to use "enum phy_mode" instead
of the local "bool" for host/device mode selection.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-23 11:19:26 +05:30
Yoshihiro Shimoda 7e0540f413 phy: rcar-gen3-usb2: check dr_mode for otg mode
The previous code assumed a channel has otg capability if a channel
has interrupt property. But, it is not good because:
 - Battery charging feature also needs interrupt property.
 - Some R-Car Gen3 SoCs (e.g. R-Car D3) don't have OTG capability.

So, this patch checks whether usb 2.0 host node has dr_mode property or
not. If it has 'dr_mode = "otg";', this driver enables otg capability.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-23 11:19:26 +05:30
Chanwoo Choi 176aa36012 extcon: Split out extcon header file for consumer and provider device
The extcon has two type of extcon devices as following.
- 'extcon provider deivce' adds new extcon device and detect the
   state/properties of external connector. Also, it notifies the
   state/properties to the extcon consumer device.
- 'extcon consumer device' gets the change state/properties
   from extcon provider device.
Prior to that, include/linux/extcon.h contains all exported API for
both provider and consumer device driver. To clarify the meaning of
header file and to remove the wrong use-case on consumer device,
this patch separates into extcon.h and extcon-provider.h.

[Description for include/linux/{extcon.h|extcon-provider.h}]
- extcon.h includes the extcon API and data structure for extcon consumer
  device driver. This header file contains the following APIs:
  : Register/unregister the notifier to catch the change of extcon device
  : Get the extcon device instance
  : Get the extcon device name
  : Get the state of each external connector
  : Get the property value of each external connector
  : Get the property capability of each external connector

- extcon-provider.h includes the extcon API and data structure for extcon
  provider device driver. This header file contains the following APIs:
  : Include 'include/linux/extcon.h'
  : Allocate the memory for extcon device instance
  : Register/unregister extcon device
  : Set the state of each external connector
  : Set the property value of each external connector
  : Set the property capability of each external connector

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-23 14:07:58 +09:00
Vivek Gautam 0b56e9a7e8 phy: Group vendor specific phy drivers
Adding vendor specific directories in phy to group
phy drivers under their respective vendor umbrella.

Also updated the MAINTAINERS file to reflect the correct
directory structure for phy drivers.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-06-01 15:28:33 +05:30