pinctrl: renesas: r8a7779: s/LSBC/LBSC/

Fix a misspelling of "LBSC" (Local Bus State Controller).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/129f08c4246f88fd5a25ca5b82c255919b71ca6c.1693409115.git.geert+renesas@glider.be

pinctrl: renesas: r8a7779: Add PWM pins, groups, and functions

Add pins, groups, and functions for the PWM Timers on the Renesas R-Car
H1 (R8A7779) SoC.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/cea9723e9c3df4b1408750caa38886aac1fab5f7.1679329090.git.geert+renesas@glider.be

pinctrl: renesas: r8a7779: Add bias pinconf support

Implement support for pull-up handling for the R-Car H1 SoC, using the
common R-Car bias handling.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/dd966cfc916ef881051ec53bc3393dce7eea8e03.1679328215.git.geert+renesas@glider.be

pinctrl: renesas: Annotate sentinels in tables

It does not make sense to have a comma after a sentinel, as any new
elements must be added before the sentinel. Hence drop all such commas.

Add comments to clarify the purpose of the empty elements.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/845f1d8285dd44522af1b0f429d4c6bd4759eb9e.1678272180.git.geert+renesas@glider.be

pinctrl: renesas: r8a7779: Optimize fixed-width reserved fields

Describe registers with fixed-width register fields and many reserved
fields using the PINMUX_CFG_REG_VAR() macro, as the latter supports a
shorthand not requiring dummy values.

This reduces kernel size by 81 bytes.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/ecc7377d2992694226dcf055bed0b617701a3d71.1649865241.git.geert+renesas@glider.be

pinctrl: renesas: r8a7779: Use shorthands for reserved fields

Replace the full descriptions of reserved register fields by shorthands
with a negative field width, and merge adjacent reserved fields.

This reduces kernel size by 197 bytes.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/4b468118e0da681c860ed750976a990a0930dcba.1649865241.git.geert+renesas@glider.be

pinctrl: renesas: r8a7779: Share SDHI pin group data

Pin groups sdhi[0-3]_data1 are subsets of sdhi[0-3]_data4.

This reduces kernel size by 32 bytes.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/01fd254a90be16bf37be5ecd20ada0ab2b50abd2.1640269757.git.geert+renesas@glider.be

pinctrl: renesas: r8a7779: Share MMC pin group data

Pin groups mmc[01]_data[14] are subsets of mmc[01]_data8.

This reduces kernel size by 80 bytes.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/3484b3cd6b4ca19788fafc01f5ead4e067275e8d.1640269757.git.geert+renesas@glider.be

pinctrl: renesas: r8a7779: Restore pin function sort order

Move the sdhi* pin functions where they belong.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/f69d05a760445c8d67bedcb39cf5959333c71a1f.1643199959.git.geert+renesas@glider.be

pinctrl: Rename sh-pfc to renesas

The drivers/pinctrl/sh-pfc subdirectory was originally created to group
pin control drivers for various Renesas SuperH and SH-Mobile platforms.
However, the name "sh-pfc" no longer reflects its contents, as the
directory now contains pin control drivers for Renesas SuperH, ARM32,
and ARM64 SoCs.

Hence rename the subdirectory from drivers/pinctrl/sh-pfc to
drivers/pinctrl/renesas, and the related Kconfig symbol from
PINCTRL_SH_PFC to PINCTRL_RENESAS.

Rename the git branch in MAINTAINERS, too, for consistency.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-3-geert+renesas@glider.be