Add optional ngpios and gpio-reserved-ranges property.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250520-gpio-dts-v3-1-04771c6cf325@nxp.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add compatible string "fsl,imx94-gpio" for the i.MX94 chip, which is
backward compatible with i.MX8ULP. Set it to fall back to
"fsl,imx8ulp-gpio".

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250306170921.241690-1-Frank.Li@nxp.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Describe common "gpio-line-names" property to allow DTs to
specify names for GPIO lines.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240708084107.38986-2-frieder@fris.de
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add i.MX95 compatible string which is compatible with i.MX8ULP

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

i.MX8ULP and i.MX93 actually has two interrupts for each gpio
controller, one for Trustzone non-secure world, one for secure world.

And they has one register based, not two as i.MX7ULP or VF610.

Although the Linux Kernel driver gpio-vf610.c could work with
fsl,imx7ulp-gpio compatible, it is based on some tricks did in
device tree with some offset added to base address.

So actually i.MX8ULP/i.MX93 is not compatible with i.MX7ULP.

Last, i.MX93 is directly derived from i.MX8ULP, so make i.MX93 GPIO
compatible with i.MX8ULP

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

i.MX93 supports four gpio-ranges at max. To fix below issue:
"gpio@43820080: gpio-ranges: [[30, 0, 84, 8], [30, 8, 66, 18],
 [30, 26, 34, 2], [30, 28, 0, 4]] is too long"

 Update the gpio-ranges property

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Allow parsing GPIO controller children nodes with GPIO hogs.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add the compatible string for i.MX93

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

Add the compatible string for i.MX8ULP.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

The i.MX 7ULP DTSes use two compatibles so update the binding to fix
dtbs_check warnings like:

  arch/arm/boot/dts/imx7ulp-com.dt.yaml: gpio@40ae0000:
    compatible: ['fsl,imx7ulp-gpio', 'fsl,vf610-gpio'] is too long

  arch/arm/boot/dts/imx7ulp-com.dt.yaml: gpio@40ae0000:
    compatible: Additional items are not allowed ('fsl,vf610-gpio' was unexpected)

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>