linux-kernel-test/drivers/mmc
Bing Zhao e5624054c1 mmc: sdio: add a quirk for broken SDIO_CCCR_INTx polling
Polling SDIO_CCCR_INTx could create a fake interrupt with Marvell
SD8797 card. Add a quirk to handle this case. The fixup here is
to issue a dummy CMD52 read to function 0 register 0xff, and this
dummy read must be right after SDIO_CCCR_INTx is read.

Patch has been verified on a dw_mmc controller (Samsung Chromebook)
with MMC_CAP_SDIO_IRQ disabled.

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
2014-01-17 22:55:01 -05:00
..
card mmc: fix host release issue after discard operation 2014-01-13 12:48:10 -05:00
core mmc: sdio: add a quirk for broken SDIO_CCCR_INTx polling 2014-01-17 22:55:01 -05:00
host mmc: sdhci: fix lockdep error in tuning routine 2014-01-17 22:39:18 -05:00
Kconfig
Makefile mmc: sdhci-pci: add platform data 2012-01-11 23:58:47 -05:00