| Message ID | 1606442334-22641-1-git-send-email-cang@codeaurora.org |
|---|---|
| State | New |
| Headers | show |
| Series | [1/1] scsi: ufs: Remove scale down gear hard code | expand |
On Thu, 2020-11-26 at 17:58 -0800, Can Guo wrote: > Instead of making the scale down gear a hard code, make it a member of > ufs_clk_scaling struct. > > Signed-off-by: Can Guo <cang@codeaurora.org> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
On Thu, 2020-11-26 at 17:58 -0800, Can Guo wrote: > Instead of making the scale down gear a hard code, make it a member > of > ufs_clk_scaling struct. > > Signed-off-by: Can Guo <cang@codeaurora.org> Reviewed-by: Bean Huo <beanhuo@micron.com>
On 11/26/2020 5:58 PM, Can Guo wrote: > Instead of making the scale down gear a hard code, make it a member of > ufs_clk_scaling struct. > > Signed-off-by: Can Guo <cang@codeaurora.org> > --- Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> > drivers/scsi/ufs/ufshcd.c | 12 +++++++----- > drivers/scsi/ufs/ufshcd.h | 2 ++ > 2 files changed, 9 insertions(+), 5 deletions(-) > > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c > index 44254c9..1789df3 100644 > --- a/drivers/scsi/ufs/ufshcd.c > +++ b/drivers/scsi/ufs/ufshcd.c > @@ -1100,7 +1100,6 @@ static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba, > */ > static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up) > { > - #define UFS_MIN_GEAR_TO_SCALE_DOWN UFS_HS_G1 > int ret = 0; > struct ufs_pa_layer_attr new_pwr_info; > > @@ -1111,16 +1110,16 @@ static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up) > memcpy(&new_pwr_info, &hba->pwr_info, > sizeof(struct ufs_pa_layer_attr)); > > - if (hba->pwr_info.gear_tx > UFS_MIN_GEAR_TO_SCALE_DOWN > - || hba->pwr_info.gear_rx > UFS_MIN_GEAR_TO_SCALE_DOWN) { > + if (hba->pwr_info.gear_tx > hba->clk_scaling.min_gear || > + hba->pwr_info.gear_rx > hba->clk_scaling.min_gear) { > /* save the current power mode */ > memcpy(&hba->clk_scaling.saved_pwr_info.info, > &hba->pwr_info, > sizeof(struct ufs_pa_layer_attr)); > > /* scale down gear */ > - new_pwr_info.gear_tx = UFS_MIN_GEAR_TO_SCALE_DOWN; > - new_pwr_info.gear_rx = UFS_MIN_GEAR_TO_SCALE_DOWN; > + new_pwr_info.gear_tx = hba->clk_scaling.min_gear; > + new_pwr_info.gear_rx = hba->clk_scaling.min_gear; > } > } > > @@ -1824,6 +1823,9 @@ static void ufshcd_init_clk_scaling(struct ufs_hba *hba) > if (!ufshcd_is_clkscaling_supported(hba)) > return; > > + if (!hba->clk_scaling.min_gear) > + hba->clk_scaling.min_gear = UFS_HS_G1; > + > INIT_WORK(&hba->clk_scaling.suspend_work, > ufshcd_clk_scaling_suspend_work); > INIT_WORK(&hba->clk_scaling.resume_work, > diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h > index 6f0f2d4..bdab23e 100644 > --- a/drivers/scsi/ufs/ufshcd.h > +++ b/drivers/scsi/ufs/ufshcd.h > @@ -385,6 +385,7 @@ struct ufs_saved_pwr_info { > * @workq: workqueue to schedule devfreq suspend/resume work > * @suspend_work: worker to suspend devfreq > * @resume_work: worker to resume devfreq > + * @min_gear: lowest HS gear to scale down to > * @is_allowed: tracks if scaling is currently allowed or not > * @is_busy_started: tracks if busy period has started or not > * @is_suspended: tracks if devfreq is suspended or not > @@ -399,6 +400,7 @@ struct ufs_clk_scaling { > struct workqueue_struct *workq; > struct work_struct suspend_work; > struct work_struct resume_work; > + u32 min_gear; > bool is_allowed; > bool is_busy_started; > bool is_suspended; > -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, Linux Foundation Collaborative Project
Can, > Instead of making the scale down gear a hard code, make it a member of > ufs_clk_scaling struct. Applied to 5.11/scsi-staging, thanks! -- Martin K. Petersen Oracle Linux Engineering
On Thu, 26 Nov 2020 17:58:48 -0800, Can Guo wrote: > Instead of making the scale down gear a hard code, make it a member of > ufs_clk_scaling struct. Applied to 5.11/scsi-queue, thanks! [1/1] scsi: ufs: Remove scale down gear hard code https://git.kernel.org/mkp/scsi/c/29b87e92a216 -- Martin K. Petersen Oracle Linux Engineering
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 44254c9..1789df3 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1100,7 +1100,6 @@ static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba, */ static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up) { - #define UFS_MIN_GEAR_TO_SCALE_DOWN UFS_HS_G1 int ret = 0; struct ufs_pa_layer_attr new_pwr_info; @@ -1111,16 +1110,16 @@ static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up) memcpy(&new_pwr_info, &hba->pwr_info, sizeof(struct ufs_pa_layer_attr)); - if (hba->pwr_info.gear_tx > UFS_MIN_GEAR_TO_SCALE_DOWN - || hba->pwr_info.gear_rx > UFS_MIN_GEAR_TO_SCALE_DOWN) { + if (hba->pwr_info.gear_tx > hba->clk_scaling.min_gear || + hba->pwr_info.gear_rx > hba->clk_scaling.min_gear) { /* save the current power mode */ memcpy(&hba->clk_scaling.saved_pwr_info.info, &hba->pwr_info, sizeof(struct ufs_pa_layer_attr)); /* scale down gear */ - new_pwr_info.gear_tx = UFS_MIN_GEAR_TO_SCALE_DOWN; - new_pwr_info.gear_rx = UFS_MIN_GEAR_TO_SCALE_DOWN; + new_pwr_info.gear_tx = hba->clk_scaling.min_gear; + new_pwr_info.gear_rx = hba->clk_scaling.min_gear; } } @@ -1824,6 +1823,9 @@ static void ufshcd_init_clk_scaling(struct ufs_hba *hba) if (!ufshcd_is_clkscaling_supported(hba)) return; + if (!hba->clk_scaling.min_gear) + hba->clk_scaling.min_gear = UFS_HS_G1; + INIT_WORK(&hba->clk_scaling.suspend_work, ufshcd_clk_scaling_suspend_work); INIT_WORK(&hba->clk_scaling.resume_work, diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 6f0f2d4..bdab23e 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -385,6 +385,7 @@ struct ufs_saved_pwr_info { * @workq: workqueue to schedule devfreq suspend/resume work * @suspend_work: worker to suspend devfreq * @resume_work: worker to resume devfreq + * @min_gear: lowest HS gear to scale down to * @is_allowed: tracks if scaling is currently allowed or not * @is_busy_started: tracks if busy period has started or not * @is_suspended: tracks if devfreq is suspended or not @@ -399,6 +400,7 @@ struct ufs_clk_scaling { struct workqueue_struct *workq; struct work_struct suspend_work; struct work_struct resume_work; + u32 min_gear; bool is_allowed; bool is_busy_started; bool is_suspended;
Instead of making the scale down gear a hard code, make it a member of ufs_clk_scaling struct. Signed-off-by: Can Guo <cang@codeaurora.org> --- drivers/scsi/ufs/ufshcd.c | 12 +++++++----- drivers/scsi/ufs/ufshcd.h | 2 ++ 2 files changed, 9 insertions(+), 5 deletions(-)