Currently, all imx pinctrl drivers maintain a big array of struct
imx_pin_reg which hard-codes data like register offset and mux mode
setting for each pin function.  Every time a new imx SoC support is
added, we need to add such a big mount of data.  With moving to single
kernel build, it's only matter of time to be blamed on memory consuming.

With DTC pre-processor support in place, the patch moves all these data
into device tree by redefining the PIN_FUNC_ID in imxXX-pinfunc.h and
changing the PIN_FUNC_ID parsing code a little bit.

The pin id gets re-numbered based on mux register offset, or config
register offset if the pin has no mux register, so that kernel can
identify the pin id from register offsets provided by device tree.

As a bonus point of the change, those arbitrary magic numbers standing
for particular PIN_FUNC_ID in device tree sources are now replaced by
macros to improve the readability of dts files.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NDong Aisheng <dong.aisheng@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>

Replace /include/ (dtc) with #include (C pre-processor) for all imx DT
files, so that gcc -E handles the entire include tree, and hence any of
those files can #include some other file e.g. for constant definitions.

This allows future use of #defines and header files in order to define
names for various constants, such as pinctrl settings. Use of those
features will increase the readability of the device tree files.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Following omap3-evm.dts way, it changes all imx dts files to use label
in board dts to refer to nodes defined by soc dtsi.  Thus, the board
dts files become easier to read and edit with the least indentation
levels.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Setup the GPIO7_11 pin as interrupt to the DA9053 and also rename the regulator nodes
so that they match with the datasheet.

This allows probing of DA9053 to succeed.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Since commit 8fe4554f (leds: leds-gpio: adopt pinctrl support) gpio-led driver
has pinctrl support, so setup the gpio led pin via pinctrl and avoid the
following warning:

leds-gpio leds.2: pins are not configured from the driver
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Add pinctrl settings for existing devices in imx53-qsb.dts.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Instead of adding sdma-ram-script-name into each board dts file, move
it to the SoC dtsi file instead.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Instead of enabling the watchdog in each individual dts file, select in
the SoC dtsi file instead.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Add Dialog DA9053 regulators support for imx53-qsb (Loco board)

Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Amit Kucheria <amit.kucheria@canonical.com>
Cc: Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: NYing-Chun Liu (PaulLiu) <paulliu@debian.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

It has been pointed out by device tree maintainer for several times
that the generic names 'serial' and 'ethernet' should be used for
those devices per ePAPR.  Renames imx uart and fec device tree nodes
to stop them being bad examples.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>

Remove bootargs field as this information is retrieved from the bootloader.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

UART1/UART2/... is more readable than UART0/UART1/... .
Remove redundant UART comments.
Signed-off-by: NRichard Zhao <richard.zhao@linaro.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

GPIO1/GPIO2/... is more readable than GPIO0/GPIO1/... .
Remove redundant gpio comments.
Signed-off-by: NRichard Zhao <richard.zhao@linaro.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

It adds device tree support for imx53 boards.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>