diff options
| author | Sonny Rao <[email protected]> | 2014-10-16 09:58:05 -0700 |
|---|---|---|
| committer | Ulf Hansson <[email protected]> | 2014-11-10 12:40:35 +0100 |
| commit | 536f6b91d21b81bec6c8a675b3a00052ee05f986 (patch) | |
| tree | c9e998819fd46fc6a64bd0b12bcfcf7cef86a511 /tools/perf/scripts/python | |
| parent | 390e316c606de2f839389698f4531004cfe1bafd (diff) | |
mmc: dw_mmc: Reset DMA before enabling IDMAC
We've already got a reset of DMA after it's done. Add one before we
start DMA too. This fixes a data corruption on Rockchip SoCs which
will get bad data when doing a DMA transfer after doing a PIO transfer.
We tested this on an Exynos 5800 with HS200 and didn't notice any
difference in sequential read throughput.
Signed-off-by: Sonny Rao <[email protected]>
Signed-off-by: Doug Anderson <[email protected]>
Tested-by: Doug Anderson <[email protected]>
Acked-by: Jaehoon Chung <[email protected]>
Tested-by: Jaehoon Chung <[email protected]>
Reviewed-by: Alim Akhtar <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions