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| author | Stanley Chu <stanley.chu@mediatek.com> | 2019-09-16 23:56:50 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-09-30 23:01:17 -0400 |
| commit | 49615ba144a0929c725d08f0d3ba8494c8b77404 (patch) | |
| tree | d25d1b12cb4d071cd5c5deba3ce8a7a9411b093d /drivers/scsi/ufs/ufshcd.h | |
| parent | c74f8056621738f5be9f5d3d7e0caa927b21aef6 (diff) | |
| download | lwn-49615ba144a0929c725d08f0d3ba8494c8b77404.tar.gz lwn-49615ba144a0929c725d08f0d3ba8494c8b77404.zip | |
scsi: ufs: override auto suspend tunables for ufs
Rework from previous work by:
Sujit Reddy Thumma <sthumma@codeaurora.org>
Override auto suspend tunables for UFS device LUNs during initialization so
as to efficiently manage background operations and the power consumption.
Link: https://lore.kernel.org/r/1568649411-5127-3-git-send-email-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.h')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index c94cfda52829..e0fe247c719e 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -716,6 +716,12 @@ struct ufs_hba { * the performance of ongoing read/write operations. */ #define UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND (1 << 5) + /* + * This capability allows host controller driver to automatically + * enable runtime power management by itself instead of waiting + * for userspace to control the power management. + */ +#define UFSHCD_CAP_RPM_AUTOSUSPEND (1 << 6) struct devfreq *devfreq; struct ufs_clk_scaling clk_scaling; @@ -749,6 +755,10 @@ static inline bool ufshcd_can_autobkops_during_suspend(struct ufs_hba *hba) { return hba->caps & UFSHCD_CAP_AUTO_BKOPS_SUSPEND; } +static inline bool ufshcd_is_rpm_autosuspend_allowed(struct ufs_hba *hba) +{ + return hba->caps & UFSHCD_CAP_RPM_AUTOSUSPEND; +} static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba) { |