dt-bindings: gpio: fsl-imx-gpio: Document imx25 and imx27

fsl,imx25-gpio and fsl,imx27-gpio are not documented, causing schema
warnings.

fsl,imx25-gpio is compatible with fsl,imx35-gpio and fsl,imx27-gpio
is compatible with fsl,imx21-gpio.

Document them accordingly.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

dt-bindings: gpio: fsl-imx-gpio: support i.MX8QM/DXL

Add i.MX8QM/DXL gpio compatible which is compatible with i.MX35.

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

dt-bindings: gpio: fsl-imx-gpio: Add i.MXRT compatibles

Both the i.MXRT1170 and 1050 have the same gpio controller as
"fsl,imx35-gpio". Add i.MXRT to the compatible list.

Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

dt-bindings: gpio: fsl-imx-gpio: add gpio-line-names

Describe common "gpio-line-names" property to fix dtbs_check warnings
like:

arch/arm/boot/dts/imx53-m53menlo.dt.yaml: gpio@53f84000:
'gpio-line-names' does not match any of the regexes: '^(hog-[0-9]+|.+-hog(-[0-9]+)?)$', 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200920195848.27075-3-krzk@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: gpio: fsl-imx-gpio: add i.MX ARMv6 and ARMv7 compatibles

Several DTSes with ARMv6 and ARMv7 i.MX SoCs introduce their own
compatibles so add them to fix dtbs_check warnings like:

arch/arm/boot/dts/imx35-pdk.dt.yaml: gpio@53fa4000:
compatible: ['fsl,imx35-gpio', 'fsl,imx31-gpio'] is not valid under any of the given schemas

arch/arm/boot/dts/imx51-babbage.dt.yaml: gpio@73f90000:
compatible: ['fsl,imx51-gpio', 'fsl,imx35-gpio'] is not valid under any of the given schemas

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200920195848.27075-2-krzk@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: gpio: fsl-imx-gpio: Add power-domains

Parse also optional power-domains property to fix dtbs_check warnings
like:

arch/arm64/boot/dts/freescale/imx8qxp-ai_ml.dt.yaml: gpio@5d080000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+'
From schema: Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200825193536.7332-5-krzk@kernel.org

dt-bindings: gpio: fsl-imx-gpio: Add parsing of hogs

Allow parsing GPIO controller children nodes with GPIO hogs to fix
warning:

arch/arm64/boot/dts/freescale/imx8mq-evk.dt.yaml: gpio@30240000: 'wl-reg-on' does not match any of the regexes: 'pinctrl-[0-9]+'
From schema: Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200825193536.7332-4-krzk@kernel.org

dt-bindings: gpio: fsl-imx-gpio: Add gpio-ranges property

The GPIO controller node can have gpio-ranges property. This fixes
dtbs_check warnings like:

arch/arm64/boot/dts/freescale/imx8mm-evk.dt.yaml: gpio@30200000: 'gpio-ranges' does not match any of the regexes: 'pinctrl-[0-9]+'
From schema: Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200825193536.7332-3-krzk@kernel.org

dt-bindings: gpio: fsl-imx-gpio: Add i.MX 8 compatibles

DTSes with new i.MX 8 SoCs introduce their own compatibles so add them
to fix dtbs_check warnings like:

arch/arm64/boot/dts/freescale/imx8mm-evk.dt.yaml: gpio@30200000:
compatible:0: 'fsl,imx8mm-gpio' is not one of ['fsl,imx1-gpio', 'fsl,imx21-gpio', 'fsl,imx31-gpio', 'fsl,imx35-gpio', 'fsl,imx7d-gpio']
From schema: Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml

arch/arm64/boot/dts/freescale/imx8mm-evk.dt.yaml: gpio@30200000:
compatible: ['fsl,imx8mm-gpio', 'fsl,imx35-gpio'] is too long

arch/arm64/boot/dts/freescale/imx8mm-evk.dt.yaml: gpio@30200000:
compatible: Additional items are not allowed ('fsl,imx35-gpio' was unexpected)

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200825193536.7332-2-krzk@kernel.org

dt-bindings: gpio: Convert i.MX to json-schema

Convert the i.MX GPIO binding to DT schema format using json-schema.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>