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| author | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2024-12-19 22:20:42 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-23 17:22:55 +0100 |
| commit | ac216ffa697cf6468a4c0b053e30463c06e053fb (patch) | |
| tree | 99058ed09b660f3cb08d6f87e77e257fc1dede7e /drivers | |
| parent | 04c3c7acb5ecf5b7023ea42e5f2f2379ea89f187 (diff) | |
| download | linux-ac216ffa697cf6468a4c0b053e30463c06e053fb.tar.gz linux-ac216ffa697cf6468a4c0b053e30463c06e053fb.tar.bz2 linux-ac216ffa697cf6468a4c0b053e30463c06e053fb.zip | |
scsi: ufs: core: Honor runtime/system PM levels if set by host controller drivers
[ Upstream commit bb9850704c043e48c86cc9df90ee102e8a338229 ]
Otherwise, the default levels will override the levels set by the host
controller drivers.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20241219-ufs-qcom-suspend-fix-v3-2-63c4b95a70b9@linaro.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ufs/core/ufshcd.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 05b936ad353b..6cc9e61cca07 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -10589,14 +10589,17 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) } /* - * Set the default power management level for runtime and system PM. + * Set the default power management level for runtime and system PM if + * not set by the host controller drivers. * Default power saving mode is to keep UFS link in Hibern8 state * and UFS device in sleep state. */ - hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( + if (!hba->rpm_lvl) + hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( UFS_SLEEP_PWR_MODE, UIC_LINK_HIBERN8_STATE); - hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( + if (!hba->spm_lvl) + hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( UFS_SLEEP_PWR_MODE, UIC_LINK_HIBERN8_STATE); |