bc677ff4 adds a device-tree property
to specify that an external watchdog reset is used to reset other
portions of the board and not just the IMX6 SoC.

This adds the property to the proper watchdog as well as the pinmux for
the Gateworks Ventana boards that use this external watchdog reset to
reset the PMIC which will reset all the PMIC power rails and not just
a chip-level IMX6 reset. This helps to work around various system issues
that can cause a hang when coming out of reset.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Using "IMX6QDL_CLK_CKO" for the clock is easier to read instead of
the hardcoded clock number.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The GW54xx can provide PWM4 out either the off-board backlight connector
or the off-board digital I/O connector. By default the pinmux routes it
to the backlight connector but this pinctl alternate provides documentation
for those who may want to change it.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Ventana boards have an off-board connector with signals that can be pinmuxed
as either GPIO or PWM. This patch adds pwm device-tree nodes in the disabled
state which the bootloader can decide to enable based on bootloader config.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Currently it is not possible to have HDMI and LVDS working simultaneously,
because both ports try to use PLL5.

Move the LVDS clock parent to PLL3_USB_OTG, so that HDMI and LVDS can be
driven from independent sources.

With this change the LDB pixel clock goes to 68.57 MHz, which is still
within the valid range for the displays supported by the Ventana boards.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The GW54xx PMIC swbst regulator is used for LVDS power, CANbus xceiver
and HDMI DDC and is enabled by the bootloader. Set the regulator to
always-on so that Linux doesn't turn it off thinking its not needed.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Gateworks Ventana boards seem to need "RGMII-ID" (internal delay)
PHY mode, instead of simple "RGMII", for their Marvell 88E1510
transceiver. Otherwise, the Ethernet MAC doesn't work with Marvell PHY
driver (TX doesn't seem to work correctly).

Tested on GW5400 rev. C.

This bug affects ARM Fedora 23.
Signed-off-by: NKrzysztof Hałasa <khalasa@piap.pl>
Acked-by: NTim Harvey <tharvey@gateworks.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

cd-gpios polarity should be changed to GPIO_ACTIVE_LOW and wp-gpios
should be changed to GPIO_ACTIVE_HIGH.
Otherwise, the SD may not work properly due to wrong polarity inversion
specified in DT after switch to common parsing function mmc_of_parse().
Signed-off-by: NDong Aisheng <aisheng.dong@freescale.com>
Acked-by: NShawn Guo <shawnguo@kernel.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

UHS-I support is available on Ventana boards with micro-SD sockets depending
on the board revision. To support this pinctl states for 100Mhz and 200MHz
must be added as well as pinmux of the VSELECT signal. In order to support
UHS-I the I/O rail of the 4-bit data bus must be switchable between 1.8V
and 3.3V.

By adding the no-1-8-v property, which disables UHS-I support, we allow the
bootloader to be in charge of selecting which boards have this capability
by removing that property if the board model/revision implement the support.

Additionally we will remove NANDF_CS1 here from the nand pinmux group as the
second chip-select is not used on any ventana boards and this is the pad
that is used for SD3_VELECT.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

imx6qdl-gw5x boards use sgtl5000 codec and the machine file (imx-sgtl5000)
already sets SSI in slave mode and codec in master mode, so there is no need
for having this property.

Cc: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Follow the conventions for pinctrl:
 - grouping pinctrl in logical alphabatized groups
 - remove any pinctrl not being used by a driver or needed by user
 - move iomuxc to bottom of file for readability
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Follow the convention of configuring padconf for all pins and not leaving
any 0x80000000 to leave them un-configured.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Use the gpio contants defined in bindings for active high/low
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Remove aliases that are either not used by bootloader or are provided via
included dtsi files.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The general device-tree rule is to not include nodes that do not have a driver
or bindings in a dts/dtsi. Remove the place-holder nodes from the Gateworks
Ventana boards until a time that a driver with proper bindings exists.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The DAI mode is and should be configured by the sound card driver as
codec and ssi have to be in the right modes to communicate with each
other. It is possible to operate the ssi unit or the codec in master mode,
sometimes even on the same board in different configurations.

With the latest changes in the fsl-ssi driver, the 'fsl,mode' property
is only handled as a fallback property. If the sound card sets the DAI
mode correctly, this fallback configuration is dropped.
Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The 'model' property in the imx-audio-sgtl5000 binding specifies the
user-visible name of the audio device. This should be something common and
not baseboard specific.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The GW54xx/GW53xx/GW52xx all support LVDS with a PWM controlled backlight.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Configure ddc and enable HDMI
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The Gateworks Ventana product family consists of several baseboard designs
based on the Freescale i.MX6 family of processors.  Each baseboard has a
different set of possible features.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>