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scsi: ufs: core: Honor runtime/system PM levels if set by host controller drivers

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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>
This commit is contained in:
Manivannan Sadhasivam 2024-12-19 22:20:42 +05:30 • committed by Martin K. Petersen
parent 7bac656875
commit bb9850704c
1 changed files with 6 additions and 3 deletions
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5
drivers/ufs/core/ufshcd.c
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@ -10590,13 +10590,16 @@ 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 * Default power saving mode is to keep UFS link in Hibern8 state
* and UFS device in sleep state. * and UFS device in sleep state.
*/ */
if (!hba->rpm_lvl)
hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(
UFS_SLEEP_PWR_MODE, UFS_SLEEP_PWR_MODE,
UIC_LINK_HIBERN8_STATE); UIC_LINK_HIBERN8_STATE);
if (!hba->spm_lvl)
hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(
UFS_SLEEP_PWR_MODE, UFS_SLEEP_PWR_MODE,
UIC_LINK_HIBERN8_STATE); UIC_LINK_HIBERN8_STATE);