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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2019-09-08 12:12:27 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2019-09-11 16:10:18 +0200 |
| commit | 7c526608d5afb62cbc967225e2ccaacfdd142e9d (patch) | |
| tree | 66710ab67ab6467031caafdaa56e1689725431e6 /drivers/mmc/core | |
| parent | bd880b00697befb73eff7220ee20bdae4fdd487b (diff) | |
| download | linux-7c526608d5afb62cbc967225e2ccaacfdd142e9d.tar.bz2 | |
mmc: dw_mmc: Re-store SDIO IRQs mask at system resume
In cases when SDIO IRQs have been enabled, runtime suspend is prevented by
the driver. However, this still means dw_mci_runtime_suspend|resume() gets
called during system suspend/resume, via pm_runtime_force_suspend|resume().
This means during system suspend/resume, the register context of the dw_mmc
device most likely loses its register context, even in cases when SDIO IRQs
have been enabled.
To re-enable the SDIO IRQs during system resume, the dw_mmc driver
currently relies on the mmc core to re-enable the SDIO IRQs when it resumes
the SDIO card, but this isn't the recommended solution. Instead, it's
better to deal with this locally in the dw_mmc driver, so let's do that.
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core')
0 files changed, 0 insertions, 0 deletions