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| author | Doug Anderson <dianders@chromium.org> | 2015-03-09 16:18:21 -0700 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-03-31 16:50:43 +0200 |
| commit | 5c935165da79644df90a647ecc140fb77b40dee5 (patch) | |
| tree | 0dd8f9bbc1aaa9690fa8f8257d79a6d586b4d785 /kernel/notifier.c | |
| parent | 488b8d63a63400e2839062a99358815ca21a2860 (diff) | |
| download | linux-5c935165da79644df90a647ecc140fb77b40dee5.tar.bz2 | |
mmc: dw_mmc: Add a timeout for sending CMD11
In the Designware databook's description of the "Voltage Switch Normal
Scenario" it instructs us to set a timer and fail the voltage change
if we don't see the voltage change interrupt within 2ms. Let's
implement that. Without implementing this I have often been able to
reproduce a hang while trying to send CMD11 on an rk3288-based board
while constantly ejecting and inserting UHS cards.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'kernel/notifier.c')
0 files changed, 0 insertions, 0 deletions