diff mbox series

[v3,4/6] drm/msm/dsi: Use the new regulator bulk feature to specify the load

Message ID 20220802153434.v3.4.I7b3c72949883846badb073cfeae985c55239da1d@changeid (mailing list archive)
State New, archived
Headers show
Series drm/msm/dsi regulator improvements | expand

Commit Message

Doug Anderson Aug. 2, 2022, 10:37 p.m. UTC
As of commit 6eabfc018e8d ("regulator: core: Allow specifying an
initial load w/ the bulk API") we can now specify the initial load in
the bulk data rather than having to manually call regulator_set_load()
on each regulator. Let's use it.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

Changes in v3:
- Update commit message to point at the git hash of the regulator change.

Changes in v2:
- ("Use the new regulator bulk feature to specify the load") new for v2.

 drivers/gpu/drm/msm/dsi/dsi_host.c    | 13 +++----------
 drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 13 +++----------
 2 files changed, 6 insertions(+), 20 deletions(-)

Comments

Dmitry Baryshkov Aug. 3, 2022, 7:12 a.m. UTC | #1
On 03/08/2022 01:37, Douglas Anderson wrote:
> As of commit 6eabfc018e8d ("regulator: core: Allow specifying an
> initial load w/ the bulk API") we can now specify the initial load in
> the bulk data rather than having to manually call regulator_set_load()
> on each regulator. Let's use it.
> 
> Signed-off-by: Douglas Anderson <dianders@chromium.org>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

It might have been better, if the previous patch had only removed the 
load_setting on disable and inlined the dsi_host_regulator_disable(). 
Then this patch would drop the regulator_set_load() from 
dsi_host_regulator_enable() path and inline it. Then it would have been 
more obvious that after these two changes the time when we set loads is 
not changed.

> ---
> 
> Changes in v3:
> - Update commit message to point at the git hash of the regulator change.
> 
> Changes in v2:
> - ("Use the new regulator bulk feature to specify the load") new for v2.
> 
>   drivers/gpu/drm/msm/dsi/dsi_host.c    | 13 +++----------
>   drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 13 +++----------
>   2 files changed, 6 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index 9df278d39559..a0a1b6d61d05 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -260,8 +260,10 @@ static int dsi_regulator_init(struct msm_dsi_host *msm_host)
>   	int num = msm_host->cfg_hnd->cfg->reg_cfg.num;
>   	int i, ret;
>   
> -	for (i = 0; i < num; i++)
> +	for (i = 0; i < num; i++) {
>   		s[i].supply = regs[i].name;
> +		s[i].init_load_uA = regs[i].enable_load;
> +	}
>   
>   	ret = devm_regulator_bulk_get(&msm_host->pdev->dev, num, s);
>   	if (ret < 0) {
> @@ -270,15 +272,6 @@ static int dsi_regulator_init(struct msm_dsi_host *msm_host)
>   		return ret;
>   	}
>   
> -	for (i = 0; i < num; i++) {
> -		if (regs[i].enable_load >= 0) {
> -			ret = regulator_set_load(s[i].consumer,
> -						 regs[i].enable_load);
> -			if (ret < 0)
> -				return ret;
> -		}
> -	}
> -
>   	return 0;
>   }
>   
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> index 7c105120d73e..efb6b1726cdb 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> @@ -515,8 +515,10 @@ static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
>   	int num = phy->cfg->reg_cfg.num;
>   	int i, ret;
>   
> -	for (i = 0; i < num; i++)
> +	for (i = 0; i < num; i++) {
>   		s[i].supply = regs[i].name;
> +		s[i].init_load_uA = regs[i].enable_load;
> +	}
>   
>   	ret = devm_regulator_bulk_get(dev, num, s);
>   	if (ret < 0) {
> @@ -529,15 +531,6 @@ static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
>   		return ret;
>   	}
>   
> -	for (i = 0; i < num; i++) {
> -		if (regs[i].enable_load >= 0) {
> -			ret = regulator_set_load(s[i].consumer,
> -							regs[i].enable_load);
> -			if (ret < 0)
> -				return ret;
> -		}
> -	}
> -
>   	return 0;
>   }
>
Doug Anderson Aug. 3, 2022, 1:50 p.m. UTC | #2
Hi,

On Wed, Aug 3, 2022 at 12:12 AM Dmitry Baryshkov
<dmitry.baryshkov@linaro.org> wrote:
>
> On 03/08/2022 01:37, Douglas Anderson wrote:
> > As of commit 6eabfc018e8d ("regulator: core: Allow specifying an
> > initial load w/ the bulk API") we can now specify the initial load in
> > the bulk data rather than having to manually call regulator_set_load()
> > on each regulator. Let's use it.
> >
> > Signed-off-by: Douglas Anderson <dianders@chromium.org>
>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>
> It might have been better, if the previous patch had only removed the
> load_setting on disable and inlined the dsi_host_regulator_disable().
> Then this patch would drop the regulator_set_load() from
> dsi_host_regulator_enable() path and inline it. Then it would have been
> more obvious that after these two changes the time when we set loads is
> not changed.

Seems like I should post a v4 to update the commit message of the
final patch in the series, but I'm going to leave this the way it is
since the end result is the same. Originally when I wrote the series I
didn't know if the new regulator API changes would be accepted, so the
previous patch did the most cleanup it could do with the old API. ;-)

-Doug
Abhinav Kumar Aug. 4, 2022, 12:18 a.m. UTC | #3
On 8/2/2022 3:37 PM, Douglas Anderson wrote:
> As of commit 6eabfc018e8d ("regulator: core: Allow specifying an
> initial load w/ the bulk API") we can now specify the initial load in
> the bulk data rather than having to manually call regulator_set_load()
> on each regulator. Let's use it.
> 
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
> ---
> 
> Changes in v3:
> - Update commit message to point at the git hash of the regulator change.
> 
> Changes in v2:
> - ("Use the new regulator bulk feature to specify the load") new for v2.
> 
>   drivers/gpu/drm/msm/dsi/dsi_host.c    | 13 +++----------
>   drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 13 +++----------
>   2 files changed, 6 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index 9df278d39559..a0a1b6d61d05 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -260,8 +260,10 @@ static int dsi_regulator_init(struct msm_dsi_host *msm_host)
>   	int num = msm_host->cfg_hnd->cfg->reg_cfg.num;
>   	int i, ret;
>   
> -	for (i = 0; i < num; i++)
> +	for (i = 0; i < num; i++) {
>   		s[i].supply = regs[i].name;
> +		s[i].init_load_uA = regs[i].enable_load;
> +	}
>   
>   	ret = devm_regulator_bulk_get(&msm_host->pdev->dev, num, s);
>   	if (ret < 0) {
> @@ -270,15 +272,6 @@ static int dsi_regulator_init(struct msm_dsi_host *msm_host)
>   		return ret;
>   	}
>   
> -	for (i = 0; i < num; i++) {
> -		if (regs[i].enable_load >= 0) {
> -			ret = regulator_set_load(s[i].consumer,
> -						 regs[i].enable_load);
> -			if (ret < 0)
> -				return ret;
> -		}
> -	}
> -
>   	return 0;
>   }
>   
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> index 7c105120d73e..efb6b1726cdb 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> @@ -515,8 +515,10 @@ static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
>   	int num = phy->cfg->reg_cfg.num;
>   	int i, ret;
>   
> -	for (i = 0; i < num; i++)
> +	for (i = 0; i < num; i++) {
>   		s[i].supply = regs[i].name;
> +		s[i].init_load_uA = regs[i].enable_load;
> +	}
>   
>   	ret = devm_regulator_bulk_get(dev, num, s);
>   	if (ret < 0) {
> @@ -529,15 +531,6 @@ static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
>   		return ret;
>   	}
>   
> -	for (i = 0; i < num; i++) {
> -		if (regs[i].enable_load >= 0) {
> -			ret = regulator_set_load(s[i].consumer,
> -							regs[i].enable_load);
> -			if (ret < 0)
> -				return ret;
> -		}
> -	}
> -
>   	return 0;
>   }
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 9df278d39559..a0a1b6d61d05 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -260,8 +260,10 @@  static int dsi_regulator_init(struct msm_dsi_host *msm_host)
 	int num = msm_host->cfg_hnd->cfg->reg_cfg.num;
 	int i, ret;
 
-	for (i = 0; i < num; i++)
+	for (i = 0; i < num; i++) {
 		s[i].supply = regs[i].name;
+		s[i].init_load_uA = regs[i].enable_load;
+	}
 
 	ret = devm_regulator_bulk_get(&msm_host->pdev->dev, num, s);
 	if (ret < 0) {
@@ -270,15 +272,6 @@  static int dsi_regulator_init(struct msm_dsi_host *msm_host)
 		return ret;
 	}
 
-	for (i = 0; i < num; i++) {
-		if (regs[i].enable_load >= 0) {
-			ret = regulator_set_load(s[i].consumer,
-						 regs[i].enable_load);
-			if (ret < 0)
-				return ret;
-		}
-	}
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
index 7c105120d73e..efb6b1726cdb 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
@@ -515,8 +515,10 @@  static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
 	int num = phy->cfg->reg_cfg.num;
 	int i, ret;
 
-	for (i = 0; i < num; i++)
+	for (i = 0; i < num; i++) {
 		s[i].supply = regs[i].name;
+		s[i].init_load_uA = regs[i].enable_load;
+	}
 
 	ret = devm_regulator_bulk_get(dev, num, s);
 	if (ret < 0) {
@@ -529,15 +531,6 @@  static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
 		return ret;
 	}
 
-	for (i = 0; i < num; i++) {
-		if (regs[i].enable_load >= 0) {
-			ret = regulator_set_load(s[i].consumer,
-							regs[i].enable_load);
-			if (ret < 0)
-				return ret;
-		}
-	}
-
 	return 0;
 }