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authorKai-Heng Feng <kai.heng.feng@canonical.com>2022-02-16 13:54:31 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-02-22 08:41:06 +0100
commit7570fb41e450ba37bf9335fe3751fa9f502c30fa (patch)
tree59c6ddb75f78b2b225cd62fd27b5d7ebf221f463 /drivers/mmc
parent4c49300d8e676702cc097784007bf11735821d6d (diff)
downloadlinux-7570fb41e450ba37bf9335fe3751fa9f502c30fa.tar.bz2
mmc: rtsx: Let MMC core handle runtime PM
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@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>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/rtsx_pci_sdmmc.c18
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 2a3f14afe9f8..265b3889f9d7 100644
--- 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_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;