Searched hist:b7dbc686f60b28d0843ed572f8aa59c3e76e142b (Results 1 – 3 of 3) sorted by relevance
| /linux/drivers/ufs/host/ |
| H A D | ufs-mediatek-trace.h | b7dbc686f60b28d0843ed572f8aa59c3e76e142b Tue Aug 02 23:54:37 UTC 2022 Po-Wen Kao <powen.kao@mediatek.com> scsi: ufs: ufs-mediatek: Support clk-scaling to optimize power consumption
Provide clk-scaling feature in MediaTek UFS platforms.
MediaTek platform supports clk-scaling by switching parent clock mux of
UFSHCI main clocks: ufs_sel.
The driver needs to prevent changing the rate of ufs_sel because its parent
PLL clock may be shared between multiple IPs. In order to achieve this
goal, the maximum and minimum clock rates of ufs_sel defined in dts should
match the rate of "ufs_sel_max_src" and "ufs_sel_min_src" respectively.
Link: https://lore.kernel.org/r/20220802235437.4547-6-stanley.chu@mediatek.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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| H A D | ufs-mediatek.h | b7dbc686f60b28d0843ed572f8aa59c3e76e142b Tue Aug 02 23:54:37 UTC 2022 Po-Wen Kao <powen.kao@mediatek.com> scsi: ufs: ufs-mediatek: Support clk-scaling to optimize power consumption
Provide clk-scaling feature in MediaTek UFS platforms.
MediaTek platform supports clk-scaling by switching parent clock mux of
UFSHCI main clocks: ufs_sel.
The driver needs to prevent changing the rate of ufs_sel because its parent
PLL clock may be shared between multiple IPs. In order to achieve this
goal, the maximum and minimum clock rates of ufs_sel defined in dts should
match the rate of "ufs_sel_max_src" and "ufs_sel_min_src" respectively.
Link: https://lore.kernel.org/r/20220802235437.4547-6-stanley.chu@mediatek.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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| H A D | ufs-mediatek.c | b7dbc686f60b28d0843ed572f8aa59c3e76e142b Tue Aug 02 23:54:37 UTC 2022 Po-Wen Kao <powen.kao@mediatek.com> scsi: ufs: ufs-mediatek: Support clk-scaling to optimize power consumption
Provide clk-scaling feature in MediaTek UFS platforms.
MediaTek platform supports clk-scaling by switching parent clock mux of
UFSHCI main clocks: ufs_sel.
The driver needs to prevent changing the rate of ufs_sel because its parent
PLL clock may be shared between multiple IPs. In order to achieve this
goal, the maximum and minimum clock rates of ufs_sel defined in dts should
match the rate of "ufs_sel_max_src" and "ufs_sel_min_src" respectively.
Link: https://lore.kernel.org/r/20220802235437.4547-6-stanley.chu@mediatek.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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