Align compatible strings for several IP blocks present on Tegra chips
with the latest doctrine from the DT maintainers:

http://marc.info/?l=devicetree&m=142255654213019&w=2

The primary objective here is to avoid checkpatch warnings, per:

http://marc.info/?l=linux-tegra&m=142201349727836&w=2

DT binding text files have been updated for the following IP blocks:

- PCIe
- SOR
- SoC timers
- AHB "gizmo"
- APB_MISC
- pinmux control
- UART
- PWM
- I2C
- SPI
- RTC
- PMC
- eFuse
- AHCI
- HDA
- XUSB_PADCTRL
- SDHCI
- SOC_THERM
- AHUB
- I2S
- EHCI
- USB PHY

N.B. The nvidia,tegra20-timer compatible string is removed from the
nvidia,tegra30-timer.txt documentation file because it's already
mentioned in the nvidia,tegra20-timer.txt documentation file.

This second version takes into account the following requests from
Rob Herring <robherring2@gmail.com>:

- Per-IP block patches have been combined into a single patch

- Explicit documentation about which compatible strings are actually
  matched by the driver has been removed.  In its place is implicit
  documentation that loosely follows Rob's prescribed format:

  "Must contain '"nvidia,<chip>-pcie", "nvidia,tegra20-pcie"' where
   <chip> is tegra30, tegra132, ..." [...]  "You should attempt to
   document known values of <chip> if you use it"
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Dylan Reid <dgreid@chromium.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Jingchang Lu <jingchang.lu@freescale.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mikko Perttunen <mperttunen@nvidia.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Terje Bergström" <tbergstrom@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-i2c@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-pwm@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Acked-by: NEduardo Valentin <edubezval@gmail.com>
Signed-off-by: NRob Herring <robh@kernel.org>

This patch adds dma_request_slave_channel_reason() calling to request
dma slave channels for multiplatform environment.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Three compatible strings have been added to the at91_udc driver.
Update the documentation accordingly.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>

The at91_udc driver request 2 clocks, and thus need them to be defined in
the device tree.
Document the clocks and clock-names properties so that everybody use the
correct names.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>

Tested-by: NRobert Baldyga <r.baldyga@samsung.com>
Acked-by: NPaul Zimmerman <paulz@synopsys.com>
Signed-off-by: NGregory Herrero <gregory.herrero@intel.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Indicate if gadget driver must use dma for usb transfers.
Tested-by: NRobert Baldyga <r.baldyga@samsung.com>
Acked-by: NPaul Zimmerman <paulz@synopsys.com>
Signed-off-by: NGregory Herrero <gregory.herrero@intel.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Enhance the phy documentation by adding 2 new optional bindings :
 - the vbus gpio, which detects usb insertion
 - the vbus regulator, which provides current drawn from the usb cable
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

at91sam9rl SoC has an erratum forcing us to toggle the BIAS on USB
suspend/resume events.

This specific handling is only activated when CONFIG_ARCH_AT91SAM9RL is
set and this option is only set when building a non-DT kernel, which is
problematic since non-DT support for at91sam9rl SoC has been removed.

Rework the toggle_bias implementation to attach it to the "at91sam9rl-udc"
compatible string.

Add new compatible strings to avoid executing at91sam9rl erratum handling
on other SoCs.
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Since bd27fa44 ("usb: phy: generic: Don't use regulator framework for
RESET line") we no longer model the reset line as a regulator supply, so
adapt the documentation accordingly.
Acked-by: NRoger Quadros <rogerq@ti.com>
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Add device-tree bindings for EHCI so we can use "needs-reset-on-resume"
property to force EHCI reset after resume if necessary. This is necessary
on platforms like rk3288 that need a reset after resume to detect if a
device has been disconnected during suspend time.
Signed-off-by: NWu Liang feng <wulf@rock-chips.com>
Reviewed-by: NJulius Werner <jwerner@google.com>
Reviewed-by: NDoug Anderson <dianders@google.com>
Reviewed-by: NTomasz Figa <tfiga@google.com>
Reviewed-by: NPawel Osciak <posciak@google.com>
Reviewed-by: NSonny Rao <sonnyrao@google.com>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Tested-by: NDoug Anderson <dianders@google.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Document the USB2 ChipIdea driver (ci13xxx) bindings.
Signed-off-by: NAntoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

DWC3 controller on Exynos7 SoC has separate control for
AXI UpScaler which connects DWC3 DRD controller to AXI bus.
Get the gate clock for the same to control it across power
cycles.
Suggested-by: NAnton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: NVivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

These quirks are currently set through platform_data; allow DT-based SoCs
to use them too.
Signed-off-by: NKevin Cernekee <cernekee@gmail.com>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

HIRD threshold should be configurable by different platforms.

From DesignWare databook:
When HIRD_Threshold[4] is set to 1b1 and HIRD value is greater than or
equal to the value in HIRD_Threshold[3:0], dwc3 asserts output signals
utmi_l1_suspend_n to put PHY into Deep Low-Power mode in L1.

When HIRD_Threshold[4] is set to 1b0 or the HIRD value is less than
HIRD_Threshold[3:0], dwc3 asserts output signals utmi_sleep_n on L1.
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds disable usb2 suspend phy quirk, and some special platforms
can configure that if it is needed.
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds disable usb3 suspend phy quirk, and some special platforms
can configure that if it is needed.
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds Tx de-emphasis quirk, and the Tx de-emphasis value is
configurable according to PIPE3 specification.

Value		Description
0		-6dB de-emphasis
1		-3.5dB de-emphasis
2		No de-emphasis
3		Reserved

It can be configured on DT or platform data.
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds RX_DETECT to Polling.LFPS control quirk, and some special
platforms can configure that if it is needed.

[ balbi@ti.com : added DeviceTree binding documentation ]
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds LFPS filter quirk, and some special platforms can configure
that if it is needed.

[ balbi@ti.com : added DeviceTree binding documentation ]
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds delay PHY power change from P0 to P1/P2/P3 when link state
changing from U0 to U1/U2/U3 respectively, and some special platforms can
configure that if it is needed.

[ balbi@ti.com : added DeviceTree binding documentation ]
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds delay P0 to P1/P2/P3 quirk for U2/U2/U3, and some special
platforms can configure that if it is needed.

[ balbi@ti.com : added DeviceTree binding documentation ]
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds request P1/P2/P3 quirk for U2/U2/U3, and some special
platforms can configure that if it is needed.

[ balbi@ti.com : added DeviceTree binding documentation ]
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds P3 in U2 SS inactive quirk, and some special platforms can
configure that if it is needed.

[ balbi@ti.com : added DeviceTree binding documentation ]
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds u2exit lfps quirk, and some special platforms can configure
that if it is needed.

[ balbi@ti.com : added DeviceTree binding documentation ]
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

When parameter DWC_USB3_LPM_ERRATA_ENABLE is enabled in Andvanced
Configuration of coreConsultant, it supports of xHCI BESL Errata Dated
10/19/2011 is enabled in host mode. In device mode it adds the capability
to send NYET response threshold based on the BESL value received in the LPM
token, and the threhold is configurable for each soc platform.

This patch adds an entry that soc platform is able to define the lpm
capacity with their own device tree or bus glue layer.

[ balbi@ti.com : added devicetree documentation, spelled threshold
		completely, made sure threshold is only applied to
		proper core revisions. ]
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds disscramble quirk, and it only needs to be enabled at fpga
board on some vendor platforms.
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Add documentation for device-tree binding of arm PXA 27x udc (usb
device) driver.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Cc: devicetree@vger.kernel.org
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

'availe' to 'available'
'desribed' to 'described'
Signed-off-by: NTobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch documents the device tree bindings required for
the ohci on-chip controller found in ST consumer electronics SoC's.
Signed-off-by: NPeter Griffin <peter.griffin@linaro.org>
Reviewed-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch documents the device tree bindings required for the
ehci on-chip controller found in ST consumer electronics SoC's.
Signed-off-by: NPeter Griffin <peter.griffin@linaro.org>
Reviewed-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This adds Vybrid VF610 SoC support. The IP is very similar to i.MX6,
however, the non-core registers are spread in two different register
areas. Hence we support multiple instances of the USB misc driver
and add the driver instance to the imx_usbmisc_data structure.
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

TPL (Targeted Peripheral List) is needed for targets host
(OTG and Embedded Hosts) for usb certification and other
vendor specific requirements.
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

QCOM USB3.0 core wrapper consist of USB3.0 IP from Synopsys
(SNPS) and HS, SS PHY's control and configuration registers.

It could operate in device mode (SS, HS, FS) and host
mode (SS, HS, FS, LS).
Signed-off-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NAndy Gross <agross@codeaurora.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Add devicetree bindings for Xilinx udc driver.
Signed-off-by: NSubbaraya Sundeep Bhatta <sbhatta@xilinx.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Indicate that the generic dr_mode binding should be used for dwc2.
Signed-off-by: NKever Yang <kever.yang@rock-chips.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This add necessary dwc2 binding documentation for Rockchip socs:
rk3066, rk3188 and rk3288
Signed-off-by: NKever Yang <kever.yang@rock-chips.com>
Acked-by: NStephen Warren <swarren@nvidia.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Document the device tree bindings for the Renesas USBHS controller.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch documents the device tree documentation required for
the ST usb3 controller glue layer found in STiH407 devices.
Signed-off-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NPeter Griffin <peter.griffin@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Add compatible string for imx6sx-usbphy.
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This adds support for the USB PHY in Vybrid VF610. We assume that
the disconnection without VBUS is also needed for Vybrid.

Tests showed, without MXS_PHY_NEED_IP_FIX, enumeration of devices
behind a USB Hub fails with errors:

[  215.163507] usb usb1-port1: cannot reset (err = -32)
[  215.170498] usb usb1-port1: cannot reset (err = -32)
[  215.185120] usb usb1-port1: cannot reset (err = -32)
[  215.191345] usb usb1-port1: cannot reset (err = -32)
[  215.202487] usb usb1-port1: cannot reset (err = -32)
[  215.207718] usb usb1-port1: Cannot enable. Maybe the USB cable is bad?
[  215.219317] usb usb1-port1: unable to enumerate USB device

Hence we also enable the MXS_PHY_NEED_IP_FIX flag.
Acked-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NFelipe Balbi <balbi@ti.com>