pinctrl: sh-pfc: r8a7790: Implement voltage switching for SDHI

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All the SHDIs can operate with either 3.3V or 1.8V signals, depending
on negotiation with the card.

Implement the {get,set}_io_voltage operations and set the related
capability flag for the associated pins.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

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Wolfram Sang 2016-03-12 10:15:03 +01:00 • committed by Geert Uytterhoeven

parent f55532a0c0

commit 60d8fcef13

1 changed files with 53 additions and 1 deletions

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drivers/pinctrl/sh-pfc/pfc-r8a7790.c

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