The PIO4 is introduced from SAMA5D2, as a new version
for Atmel PIO controller.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>

This supports RK3288 at present. It does not implement functions or support
for pull up/down.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add driver for the DesignWare APB GPIO IP block.
This driver is DM capable and probes from DT.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>

This patch adds support for the GPIO perif found on hi6220
SoC.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>

Now that we support driver model in SPL, allow GPIO drivers to be used there
also.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add GPIO driver support to Freescale VF610

Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>

Move the axp-gpio code out of the drivers/power/axp*.c code, and into
a new separate axpi-gpio driver.

This change drops supports for the gpio3 pin on the axp209, as that requires
special handling, and no boards are using it.

Besides cleaning things up by moving the code to a separate driver, as
a bonus this change also adds support for the (non vusb) gpio pins on the
axp221 and the gpio pins on the axp152.

The new axp-gpio driver gets its own Kconfig option, and is only enabled
on boards which need it. Besides that it only gets enabled in the regular
u-boot build and not for the SPL as we never need it in the SPL.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

Most of the code is taken (and adapted) from Linux kernel driver.

Just add CONFIG_ZYNQ_GPIO to you config to enable it

Signed-off-by: Andrea Scian <andrea.scian@dave.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Signed-off-by: Kamil Lulko <rev13@wp.pl>
Reviewed-by: Tom Rini <trini@konsulko.com>

This driver only supports Driver Model, not legacy model.

Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>