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authorDoug Anderson <dianders@chromium.org>2014-12-03 02:42:46 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2015-01-19 11:56:05 +0300
commitb24c8b260189fe21cca992d2f5175a33f6cc5477 (patch)
treeca723fba1fee785efbf9977a8e22d43528676d38 /Documentation/phy
parenteac86321b5c33e6b68aa4a4e0517c45df3ef02c0 (diff)
downloadlinux-b24c8b260189fe21cca992d2f5175a33f6cc5477.tar.xz
mmc: dw_mmc: Cleanup disable of low power mode w/ SDIO interrupts
In the patch (9623b5b mmc: dw_mmc: Disable low power mode if SDIO interrupts are used) I added code that disabled the low power mode of dw_mmc when SDIO interrupts are used. That code worked but always felt a little hacky because we ended up disabling low power as a side effect of the first enable_sdio_irq() call. That wouldn't be so bad except that disabling low power involves a complicated process of writing to the CMD/CMDARG registers and that extra process makes it difficult to cleanly the read-modify-write race in dw_mci_enable_sdio_irq() (see future patch in the series). Change the code to take advantage of the init_card() callback of the mmc core to do this right at bootup. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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