Hello Ulf, Many WLAN chips attached to an SDIO interface needs more than one GPIO for their reset sequence and also need an external clock to be operational. Since this is very common, this series extend the simple MMC power sequence to support more than one reset GPIO and also an optional external clock. The series depend on v4 "mmc: core: Add support for MMC power sequences": http://comments.gmane.org/gmane.linux.kernel.mmc/30665 Javier Martinez Canillas (5): mmc: pwrseq: Document that simple sequence support more than one GPIO mmc: pwrseq_simple: Extend to support more pins mmc: pwrseq: Document optional clock for the simple power sequence mmc: pwrseq_simple: Add optional reference clock support ARM: dts: exynos5250-snow: Enable wifi power-on .../devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 10 ++- arch/arm/boot/dts/exynos5250-snow.dts | 25 ++++++- drivers/mmc/core/pwrseq_simple.c | 85 ++++++++++++++++++---- 3 files changed, 103 insertions(+), 17 deletions(-) Patch #1 extends the simple MMC power sequence DT binding to support more than one GPIO and patch #2 adds the actual implementation. In the same way, patch #3 and #4 extend the simple MMC power sequence DT binding and pwrseq_simple driver to support an optional external clock. Finally as an example, patch #5 adds support for the wifi chip in the Exynos5250 Snow that is attached to a SDIO interface and needs all these. Best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
 |