pinctrl: sh-pfc: r8a77990: Add voltage switch operations for SDHI

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This patch supports the {get,set}_io_voltage operations of SDHI.

This operates the IOCTRL30 register on the R8A77990 SoC and makes
1.8V/3.3V signal voltage switch possible.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

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Takeshi Kihara 2018-11-05 22:40:12 +01:00 • committed by Geert Uytterhoeven

parent 21ac0d58bb

commit 33847a7137

1 changed files with 33 additions and 2 deletions

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drivers/pinctrl/sh-pfc/pfc-r8a77990.c

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