From: Ulf Hansson Date: Mon, 15 Dec 2014 15:07:11 +0000 (+0100) Subject: mmc: pwrseq_simple: Add support for a reset GPIO pin X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~125^2~24 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=862b5dcf9f2055ce6d1c9b0f6553079b7ee61b20;p=pandora-kernel.git mmc: pwrseq_simple: Add support for a reset GPIO pin The need for reset GPIOs has several times been pointed out from erlier posted patchsets. Especially some WLAN chips which are attached to an SDIO interface may use a GPIO reset. The reset GPIO is asserted at initialization and prior we start the power up procedure. The GPIO will be de-asserted right after the power has been provided to the card, from the ->post_power_on() callback. Note, the reset GPIO is optional. Thus we don't return an error even if we can't find a GPIO for the consumer. Signed-off-by: Ulf Hansson Tested-by: Javier Martinez Canillas Reviewed-by: Javier Martinez Canillas --- Reading git-diff-tree failed