diff options
| author | Joonyoung Shim <jy0922.shim@samsung.com> | 2016-11-25 12:47:15 +0900 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-12-05 10:31:15 +0100 |
| commit | df9bcc2bc0a1f8d2963bd916698268fb2470713b (patch) | |
| tree | 699019edd12d2ee8cc228bae14e7122f77768b56 /drivers/mmc | |
| parent | 9b93d392fdbd336b0f1558592010c0169801afa5 (diff) | |
| download | linux-df9bcc2bc0a1f8d2963bd916698268fb2470713b.tar.bz2 | |
mmc: dw_mmc: add missing codes for runtime resume
The commit 64997de4fd17 ("mmc: dw_mmc: remove system PM callback") is
missing to call dw_mci_ctrl_reset(). This adds to call
dw_mci_ctrl_reset() and to handle error of clocks.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index d400afc74719..0aa4bcd85bb7 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -3296,7 +3296,13 @@ int dw_mci_runtime_resume(struct device *dev) ret = clk_prepare_enable(host->ciu_clk); if (ret) - return ret; + goto err; + + if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) { + clk_disable_unprepare(host->ciu_clk); + ret = -ENODEV; + goto err; + } if (host->use_dma && host->dma_ops->init) host->dma_ops->init(host); @@ -3331,6 +3337,14 @@ int dw_mci_runtime_resume(struct device *dev) /* Now that slots are all setup, we can enable card detect */ dw_mci_enable_cd(host); + return 0; + +err: + if (host->cur_slot && + (mmc_can_gpio_cd(host->cur_slot->mmc) || + !mmc_card_is_removable(host->cur_slot->mmc))) + clk_disable_unprepare(host->biu_clk); + return ret; } EXPORT_SYMBOL(dw_mci_runtime_resume); |