dt-bindings: pinctrl: ralink: rt305x: split binding

The RT3352 and RT5350 SoCs each contain different pin muxing information,
therefore, should be split. This can be done now that there are compatible
strings to distinguish them from other SoCs.

Split the schema out to ralink,rt3352-pinctrl.yaml and
ralink,rt5350-pinctrl.yaml.

Remove ralink,rt3352-pinctrl and ralink,rt5350-pinctrl from rt305x.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230317213011.13656-20-arinc.unal@arinc9.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: {mediatek,ralink}: fix formatting

Change the style of description properties to plain style where there's no
need to preserve the line endings, and vice versa.

Fix capitalisation and indentation.

Fit the schemas to 80 columns for each line.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230317213011.13656-16-arinc.unal@arinc9.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: ralink: add new compatible strings

Add the new compatible strings for mt7620, mt76x8, and rt305x to be able to
properly document the pin muxing information of each SoC, or SoCs that use
the same pinmux data.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230317213011.13656-9-arinc.unal@arinc9.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: ralink: drop quotes from referred schemas

Drop the quotes from the referred schemas.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230317213011.13656-8-arinc.unal@arinc9.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: ralink: move additionalProperties to top

Move additionalProperties to the top. It's easier to read than after a long
indented section.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230317213011.13656-7-arinc.unal@arinc9.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: rt305x: add proper function muxing binding

Not every function can be muxed to a group. Add proper binding which
documents which function can be muxed to a group or set of groups.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20221231160849.40544-6-arinc.unal@arinc9.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: ralink: Fix 'enum' lists with duplicate entries

There's no reason to list the same value twice in an 'enum'. This was fixed
treewide in commit c3b006819426 ("dt-bindings: Fix 'enum' lists with
duplicate entries"), but this one got added in the merge window.

A meta-schema change will catch future cases.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20220606212239.1360877-1-robh@kernel.org

dt-bindings: pinctrl: add binding for Ralink RT305X pinctrl

Add binding for the Ralink RT305X pin controller for RT3050, RT3052,
RT3350, RT3352 and RT5350 SoCs.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20220414173916.5552-14-arinc.unal@arinc9.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>