From: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> commit 7570fb41e450ba37bf9335fe3751fa9f502c30fa upstream. Since MMC core handles runtime PM reference counting, we can avoid doing redundant runtime PM work in the driver. That means the only thing commit 5b4258f6721f ("misc: rtsx: rts5249 support runtime PM") misses is to always enable runtime PM, to let its parent driver enable ASPM in the runtime idle routine. Fixes: 7499b529d97f ("mmc: rtsx: Use pm_runtime_{get,put}() to handle runtime PM") Reviewed-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220216055435.2335297-1-kai.heng.feng@xxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/mmc/host/rtsx_pci_sdmmc.c | 18 ------------------ 1 file changed, 18 deletions(-) --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -823,7 +823,6 @@ static void sd_request(struct work_struc } mutex_lock(&pcr->pcr_mutex); - pm_runtime_get_sync(dev); rtsx_pci_start_run(pcr); @@ -860,8 +859,6 @@ static void sd_request(struct work_struc data->bytes_xfered = data->blocks * data->blksz; } - pm_runtime_mark_last_busy(dev); - pm_runtime_put_autosuspend(dev); mutex_unlock(&pcr->pcr_mutex); finish: @@ -1093,7 +1090,6 @@ static void sdmmc_set_ios(struct mmc_hos return; mutex_lock(&pcr->pcr_mutex); - pm_runtime_get_sync(dev); rtsx_pci_start_run(pcr); @@ -1127,8 +1123,6 @@ static void sdmmc_set_ios(struct mmc_hos rtsx_pci_switch_clock(pcr, ios->clock, host->ssc_depth, host->initial_mode, host->double_clk, host->vpclk); - pm_runtime_mark_last_busy(dev); - pm_runtime_put_autosuspend(dev); mutex_unlock(&pcr->pcr_mutex); } @@ -1144,7 +1138,6 @@ static int sdmmc_get_ro(struct mmc_host return -ENOMEDIUM; mutex_lock(&pcr->pcr_mutex); - pm_runtime_get_sync(dev); rtsx_pci_start_run(pcr); @@ -1154,8 +1147,6 @@ static int sdmmc_get_ro(struct mmc_host if (val & SD_WRITE_PROTECT) ro = 1; - pm_runtime_mark_last_busy(dev); - pm_runtime_put_autosuspend(dev); mutex_unlock(&pcr->pcr_mutex); return ro; @@ -1173,7 +1164,6 @@ static int sdmmc_get_cd(struct mmc_host return cd; mutex_lock(&pcr->pcr_mutex); - pm_runtime_get_sync(dev); rtsx_pci_start_run(pcr); @@ -1183,8 +1173,6 @@ static int sdmmc_get_cd(struct mmc_host if (val & SD_EXIST) cd = 1; - pm_runtime_mark_last_busy(dev); - pm_runtime_put_autosuspend(dev); mutex_unlock(&pcr->pcr_mutex); return cd; @@ -1282,7 +1270,6 @@ static int sdmmc_switch_voltage(struct m return err; mutex_lock(&pcr->pcr_mutex); - pm_runtime_get_sync(dev); rtsx_pci_start_run(pcr); @@ -1312,8 +1299,6 @@ out: err = rtsx_pci_write_register(pcr, SD_BUS_STAT, SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP, 0); - pm_runtime_mark_last_busy(dev); - pm_runtime_put_autosuspend(dev); mutex_unlock(&pcr->pcr_mutex); return err; @@ -1334,7 +1319,6 @@ static int sdmmc_execute_tuning(struct m return err; mutex_lock(&pcr->pcr_mutex); - pm_runtime_get_sync(dev); rtsx_pci_start_run(pcr); @@ -1367,8 +1351,6 @@ static int sdmmc_execute_tuning(struct m err = sd_change_phase(host, DDR50_RX_PHASE(pcr), true); out: - pm_runtime_mark_last_busy(dev); - pm_runtime_put_autosuspend(dev); mutex_unlock(&pcr->pcr_mutex); return err; Patches currently in stable-queue which might be from kai.heng.feng@xxxxxxxxxxxxx are queue-5.17/alsa-hda-realtek-fix-audio-regression-on-mi-notebook-pro-2020.patch queue-5.17/mmc-rtsx-use-pm_runtime_-get-put-to-handle-runtime-pm.patch queue-5.17/mmc-rtsx-fix-build-errors-warnings-for-unused-variable.patch queue-5.17/mmc-rtsx-let-mmc-core-handle-runtime-pm.patch