sh-pfc: sh73a0: Add VCCQ MC0 regulator

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The sh73a0 has an internal power gate on the VCCQ power supply for the
SDHI0 device that is controlled (for some strange reason) by a bit in a
PFC register. This feature should be exposed as a regulator.

As the same register is also used for pin control purposes there is no
way to achieve atomic read/write sequences with a separate regulator
driver. We thus need to implement the regulator here.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

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Laurent Pinchart 2013-04-21 23:26:26 +02:00 • committed by Simon Horman

parent 0c151062f3

commit ea770ad2ec

2 changed files with 135 additions and 0 deletions

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1

drivers/pinctrl/sh-pfc/Kconfig

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134

drivers/pinctrl/sh-pfc/pfc-sh73a0.c

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