On Mon, 2013-06-10 at 14:50 -0700, Christoffer Dall wrote:
Enable the Versatile Express voltage regulators by default.
This should work on all verstatile express platforms and not enabling it prevents a defconfig'ed kernel from using the SD card controller on the qemu emulated platform, which is unfortunate for first-time casual users.
Cc: Peter Maydell peter.maydell@linaro.org Signed-off-by: Christoffer Dall christoffer.dall@linaro.org
arch/arm/configs/vexpress_defconfig | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/configs/vexpress_defconfig b/arch/arm/configs/vexpress_defconfig index f2de51f..17104d9 100644 --- a/arch/arm/configs/vexpress_defconfig +++ b/arch/arm/configs/vexpress_defconfig @@ -138,3 +138,6 @@ CONFIG_DEBUG_LL=y CONFIG_EARLY_PRINTK=y # CONFIG_CRYPTO_ANSI_CPRNG is not set # CONFIG_CRYPTO_HW is not set +CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y +CONFIG_REGULATOR_VEXPRESS=y
From my testing, only the CONFIG_REGULATOR=y is required to get MMC
working on real hardware with Linux 3.10. Is CONFIG_REGULATOR_VEXPRESS actually required to get QEMU working properly?
We definitely don't need CONFIG_REGULATOR_FIXED_VOLTAGE because config ARCH_VEXPRESS has "select REGULATOR_FIXED_VOLTAGE if REGULATOR".