| Message ID | 20241211-ufs-qcom-suspend-fix-v1-0-83ebbde76b1c@linaro.org |
|---|---|
| Headers | show |
| Series | scsi: ufs: qcom: Suspend fixes | expand |
On 12/11/24 9:40 AM, Manivannan Sadhasivam via B4 Relay wrote: > This series fixes the several suspend issues on Qcom platforms. Patch 1 fixes > the resume failure with spm_lvl=5 suspend on most of the Qcom platforms. For > this patch, I couldn't figure out the exact commit that caused the issue. So I > used the commit that introduced reinit support as a placeholder. > > Patch 3 fixes the suspend issue on SM8550 and SM8650 platforms where UFS > PHY retention is not supported. Hence the default spm_lvl=3 suspend fails. So > this patch configures spm_lvl=5 as the default suspend level to force UFSHC/ > device powerdown during suspend. This supersedes the previous series [1] that > tried to fix the issue in clock drivers. If Avri's comment is addressed, feel free to add my reviewed-by to this series. Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Hi, This series fixes the several suspend issues on Qcom platforms. Patch 1 fixes the resume failure with spm_lvl=5 suspend on most of the Qcom platforms. For this patch, I couldn't figure out the exact commit that caused the issue. So I used the commit that introduced reinit support as a placeholder. Patch 3 fixes the suspend issue on SM8550 and SM8650 platforms where UFS PHY retention is not supported. Hence the default spm_lvl=3 suspend fails. So this patch configures spm_lvl=5 as the default suspend level to force UFSHC/ device powerdown during suspend. This supersedes the previous series [1] that tried to fix the issue in clock drivers. This series is tested on Qcom SM8550 MTP and Qcom RB5 boards. [1] https://lore.kernel.org/linux-arm-msm/20241107-ufs-clk-fix-v1-0-6032ff22a052@linaro.org Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- Manivannan Sadhasivam (3): scsi: ufs: qcom: Power off the PHY if it was already powered on in ufs_qcom_power_up_sequence() scsi: ufs: qcom: Allow passing platform specific OF data scsi: ufs: qcom: Power down the controller/device during system suspend for SM8550/SM8650 SoCs drivers/ufs/core/ufshcd-priv.h | 6 ------ drivers/ufs/core/ufshcd.c | 1 - drivers/ufs/host/ufs-qcom.c | 31 +++++++++++++++++++------------ drivers/ufs/host/ufs-qcom.h | 5 +++++ include/ufs/ufshcd.h | 2 -- 5 files changed, 24 insertions(+), 21 deletions(-) --- base-commit: 40384c840ea1944d7c5a392e8975ed088ecf0b37 change-id: 20241211-ufs-qcom-suspend-fix-5618e9c56d93 Best regards,