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| author | Bing Zhao <bzhao@marvell.com> | 2013-11-26 15:39:20 -0800 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-01-17 22:55:01 -0500 |
| commit | e5624054c1726a16c13a89c08b2792aba3df06eb (patch) | |
| tree | 2f54f5abf6337ed1571e6dd872a2e32164382f70 /include/drm/i915_pciids.h | |
| parent | 2b35bd83467df6f8284b9148d6f768148c3a5e5f (diff) | |
| download | linux-e5624054c1726a16c13a89c08b2792aba3df06eb.tar.gz linux-e5624054c1726a16c13a89c08b2792aba3df06eb.tar.bz2 linux-e5624054c1726a16c13a89c08b2792aba3df06eb.zip | |
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>
Diffstat (limited to 'include/drm/i915_pciids.h')
0 files changed, 0 insertions, 0 deletions