gpio: fixes for gpio-hog support

recently added gpio hog patch was "in discussion"
state with Simon Glass. This patch now adds most
of comments from Simon Glass.

(cherry-picked from 49b10cb4926285b

gpio: fixes for gpio-hog support

recently added gpio hog patch was "in discussion"
state with Simon Glass. This patch now adds most
of comments from Simon Glass.

(cherry-picked from 49b10cb4926285b856b207c1f5bb40c75487f08b)

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20220207231334.59845-4-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>

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gpio: add gpio-hog support

add gpio-hog support. GPIO hogging is a mechanism
providing automatic GPIO request and configuration
as part of the gpio-controller's driver probe function.

for more info

gpio: add gpio-hog support

add gpio-hog support. GPIO hogging is a mechanism
providing automatic GPIO request and configuration
as part of the gpio-controller's driver probe function.

for more infos see:
doc/device-tree-bindings/gpio/gpio.txt

(cherry-picked from 5fc7cf8c8e268590f3b0037eecea7f6798209f78)

Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Michal Simek <michal.simek@xilinx.com> (zcu102)
Tested-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20220207231334.59845-3-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>

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mips: mscc_sgpio: Add DT bindings documentation

This add device tree binding documentation for the MSCC serial GPIO
driver.

Signed-off-by: Lars Povlsen <lars.povlsen@microsemi.com>
Acked-by: Linus

mips: mscc_sgpio: Add DT bindings documentation

This add device tree binding documentation for the MSCC serial GPIO
driver.

Signed-off-by: Lars Povlsen <lars.povlsen@microsemi.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

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