@@ -1559,3 +1559,34 @@ Description:
Symbol - HCMID. This file shows the UFSHCD manufacturer id.
The Manufacturer ID is defined by JEDEC in JEDEC-JEP106.
The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/clkscale_enable
+What: /sys/bus/platform/devices/*.ufs/clkscale_enable
+Date: January 2025
+Contact: Ziqi Chen <quic_ziqichen@quicinc.com>
+Description:
+ This file shows the status of UFS clock scaling enablement
+ and it can be used to enable/disable clock scaling.
+
+ The file is read write.
+
+What: /sys/bus/platform/drivers/ufshcd/*/clkgate_enable
+What: /sys/bus/platform/devices/*.ufs/clkgate_enable
+Date: January 2025
+Contact: Ziqi Chen <quic_ziqichen@quicinc.com>
+Description:
+ This file shows the status of UFS clock gating enablement
+ and it can be used to enable/disable clock gating.
+
+ The file is read write.
+
+What: /sys/bus/platform/drivers/ufshcd/*/clkgate_delay_ms
+What: /sys/bus/platform/devices/*.ufs/clkgate_delay_ms
+Date: January 2025
+Contact: Ziqi Chen <quic_ziqichen@quicinc.com>
+Description:
+ This file shows and sets the number of milliseconds of idle
+ time before the UFS driver start to do clock gating. This can
+ prevent the UFS from frequently performing clock gate/ungate.
+
+ The file is read write.
Add UFS driver sysfs addributes clkscale_enable, clkgate_enable and clkgate_delay_ms to this doucment. Signed-off-by: Ziqi Chen <quic_ziqichen@quicinc.com> --- v1 -> v2: It is a new patch be added to this series since v2. --- Documentation/ABI/testing/sysfs-driver-ufs | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+)