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ARM: vexpress: Enable regulator framework when MMCI is in use

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The MMCI driver, when used with a Device Tree described device, relies
on the "vmmc" voltage regulator supply to set the OCR register voltage bits,
using MMC core's mmc_regulator_get_supply() function.

Without the regulator framework present there are no valid operating
voltages reported and the device initialisation fails:

mmci-pl18x 10005000.mmci: No vmmc regulator found
mmci-pl18x 10005000.mmci: no support for card's volts
mmc0: error -22 whilst initialising SD card

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Pawel Moll 2014-11-28 16:44:31 +00:00 committed by Arnd Bergmann
parent 00239d9da3
commit 1f1dd5889c
1 changed files with 1 additions and 0 deletions
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arch/arm/mach-vexpress/Kconfig
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@ -16,6 +16,7 @@ menuconfig ARCH_VEXPRESS
select POWER_RESET
select POWER_RESET_VEXPRESS
select POWER_SUPPLY
select REGULATOR if MMC_ARMMMCI
select REGULATOR_FIXED_VOLTAGE if REGULATOR
select VEXPRESS_CONFIG
select VEXPRESS_SYSCFG