On Fri, 24 Jan 2014, Krzysztof Kozlowski wrote: > Add support for GPIO control (enable/disable) over Buck9. The Buck9 > Converter is used as a supply for eMMC Host Controller. > > BUCK9EN GPIO of S5M8767 chip may be used by application processor to > enable or disable the Buck9. This has two benefits: > - It is faster than toggling it over I2C bus. > - It allows disabling the regulator during suspend to RAM; The AP will > enable it during resume; Without the patch the regulator supplying > eMMC must be defined as fixed-regulator. > > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx> > Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> > Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx> > --- > drivers/regulator/s5m8767.c | 87 +++++++++++++++++++++++++++++++++-- > include/linux/mfd/samsung/core.h | 3 +- > include/linux/mfd/samsung/s5m8767.h | 7 +++ > 3 files changed, 93 insertions(+), 4 deletions(-) For the MFD changes: Acked-by: Lee Jones <lee.jones@xxxxxxxxxx> -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
