diff options
| author | Bing Zhao <[email protected]> | 2013-11-26 15:39:20 -0800 |
|---|---|---|
| committer | Chris Ball <[email protected]> | 2014-01-17 22:55:01 -0500 |
| commit | e5624054c1726a16c13a89c08b2792aba3df06eb (patch) | |
| tree | 2f54f5abf6337ed1571e6dd872a2e32164382f70 /tools/perf/util/trace-event-scripting.c | |
| parent | 2b35bd83467df6f8284b9148d6f768148c3a5e5f (diff) | |
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 <[email protected]>
Reviewed-by: Paul Stewart <[email protected]>
Reviewed-by: Doug Anderson <[email protected]>
Acked-by: Ulf Hansson <[email protected]>
Signed-off-by: Chris Ball <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions