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mmc: rtsx: Let MMC core handle runtime PM

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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 5b4258f672 ("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: 7499b529d9 ("mmc: rtsx: Use pm_runtime_{get,put}() to handle runtime PM")
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20220216055435.2335297-1-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kai-Heng Feng 2022-02-16 13:54:31 +08:00 committed by Greg Kroah-Hartman
parent 4c49300d8e
commit 7570fb41e4
1 changed files with 0 additions and 18 deletions
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18
drivers/mmc/host/rtsx_pci_sdmmc.c
View File

@ -823,7 +823,6 @@ static void sd_request(struct work_struct *work)
}
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_struct *work)
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_host *mmc, struct mmc_ios *ios)
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_host *mmc, struct mmc_ios *ios)
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 *mmc)
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 *mmc)
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 *mmc)
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 *mmc)
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 mmc_host *mmc, struct mmc_ios *ios)
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 mmc_host *mmc, u32 opcode)
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 mmc_host *mmc, u32 opcode)
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;