diff options
| author |   Ulf Hansson <ulf.hansson@linaro.org> | 2019-09-08 12:12:32 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2019-09-11 16:10:18 +0200 |
| commit | c5d3e8fa1a1bf28ac9997421fd18fcbecef941bd (patch) | |
| tree | b76c49b729272da870ed625517d5f5e4d51dcc5b /drivers/mmc | |
| parent | mmc: core: Clarify that the ->ack_sdio_irq() callback is mandatory (diff) | |
| download | linux-dev-c5d3e8fa1a1bf28ac9997421fd18fcbecef941bd.tar.xz linux-dev-c5d3e8fa1a1bf28ac9997421fd18fcbecef941bd.zip | |
mmc: core: WARN if SDIO IRQs are enabled for non-powered card in suspend
To make sure SDIO func drivers behaves correctly during system
suspend/resume, let add a WARN_ON in case the condition is a non-powered
SDIO card and there are some SDIO IRQs still being claimed.
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/sdio.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 8dd8fc32ecca..c557f1519b77 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -951,6 +951,8 @@ static int mmc_sdio_pre_suspend(struct mmc_host *host) */ static int mmc_sdio_suspend(struct mmc_host *host) { + WARN_ON(host->sdio_irqs && !mmc_card_keep_power(host)); + /* Prevent processing of SDIO IRQs in suspended state. */ mmc_card_set_suspended(host->card); cancel_delayed_work_sync(&host->sdio_irq_work); |