* [PATCH] drm/panel: novatek, nt39016: Remove 'dev' field in priv struct
@ 2020-08-19 18:14 ` Paul Cercueil
0 siblings, 0 replies; 4+ messages in thread
From: Paul Cercueil @ 2020-08-19 18:14 UTC (permalink / raw)
To: Thierry Reding, Sam Ravnborg; +Cc: Paul Cercueil, od, linux-kernel, dri-devel
There is already a 'struct device' pointer in the drm_panel structure,
that we can access easily from our priv structure, so there's no need
for a separate 'dev' field there.
This also allows drm_panel_of_backlight() to work properly, as it
requires the drm_panel.dev field to be initialized.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
drivers/gpu/drm/panel/panel-novatek-nt39016.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-novatek-nt39016.c b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
index 39f7be679da5..292ad1d58313 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt39016.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
@@ -56,7 +56,6 @@ struct nt39016_panel_info {
struct nt39016 {
struct drm_panel drm_panel;
- struct device *dev;
struct regmap *map;
struct regulator *supply;
const struct nt39016_panel_info *panel_info;
@@ -124,7 +123,7 @@ static int nt39016_prepare(struct drm_panel *drm_panel)
err = regulator_enable(panel->supply);
if (err) {
- dev_err(panel->dev, "Failed to enable power supply: %d\n", err);
+ dev_err(drm_panel->dev, "Failed to enable power supply: %d\n", err);
return err;
}
@@ -143,7 +142,7 @@ static int nt39016_prepare(struct drm_panel *drm_panel)
err = regmap_multi_reg_write(panel->map, nt39016_panel_regs,
ARRAY_SIZE(nt39016_panel_regs));
if (err) {
- dev_err(panel->dev, "Failed to init registers: %d\n", err);
+ dev_err(drm_panel->dev, "Failed to init registers: %d\n", err);
goto err_disable_regulator;
}
@@ -173,7 +172,7 @@ static int nt39016_enable(struct drm_panel *drm_panel)
ret = regmap_write(panel->map, NT39016_REG_SYSTEM,
NT39016_SYSTEM_RESET_N | NT39016_SYSTEM_STANDBY);
if (ret) {
- dev_err(panel->dev, "Unable to enable panel: %d\n", ret);
+ dev_err(drm_panel->dev, "Unable to enable panel: %d\n", ret);
return ret;
}
@@ -193,7 +192,7 @@ static int nt39016_disable(struct drm_panel *drm_panel)
err = regmap_write(panel->map, NT39016_REG_SYSTEM,
NT39016_SYSTEM_RESET_N);
if (err) {
- dev_err(panel->dev, "Unable to disable panel: %d\n", err);
+ dev_err(drm_panel->dev, "Unable to disable panel: %d\n", err);
return err;
}
@@ -252,7 +251,7 @@ static int nt39016_probe(struct spi_device *spi)
if (!panel)
return -ENOMEM;
- panel->dev = dev;
+ panel->drm_panel.dev = dev;
spi_set_drvdata(spi, panel);
panel->panel_info = of_device_get_match_data(dev);
--
2.28.0
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH] drm/panel: novatek,nt39016: Remove 'dev' field in priv struct
@ 2020-08-19 18:14 ` Paul Cercueil
0 siblings, 0 replies; 4+ messages in thread
From: Paul Cercueil @ 2020-08-19 18:14 UTC (permalink / raw)
To: Thierry Reding, Sam Ravnborg; +Cc: od, dri-devel, linux-kernel, Paul Cercueil
There is already a 'struct device' pointer in the drm_panel structure,
that we can access easily from our priv structure, so there's no need
for a separate 'dev' field there.
This also allows drm_panel_of_backlight() to work properly, as it
requires the drm_panel.dev field to be initialized.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
drivers/gpu/drm/panel/panel-novatek-nt39016.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-novatek-nt39016.c b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
index 39f7be679da5..292ad1d58313 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt39016.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
@@ -56,7 +56,6 @@ struct nt39016_panel_info {
struct nt39016 {
struct drm_panel drm_panel;
- struct device *dev;
struct regmap *map;
struct regulator *supply;
const struct nt39016_panel_info *panel_info;
@@ -124,7 +123,7 @@ static int nt39016_prepare(struct drm_panel *drm_panel)
err = regulator_enable(panel->supply);
if (err) {
- dev_err(panel->dev, "Failed to enable power supply: %d\n", err);
+ dev_err(drm_panel->dev, "Failed to enable power supply: %d\n", err);
return err;
}
@@ -143,7 +142,7 @@ static int nt39016_prepare(struct drm_panel *drm_panel)
err = regmap_multi_reg_write(panel->map, nt39016_panel_regs,
ARRAY_SIZE(nt39016_panel_regs));
if (err) {
- dev_err(panel->dev, "Failed to init registers: %d\n", err);
+ dev_err(drm_panel->dev, "Failed to init registers: %d\n", err);
goto err_disable_regulator;
}
@@ -173,7 +172,7 @@ static int nt39016_enable(struct drm_panel *drm_panel)
ret = regmap_write(panel->map, NT39016_REG_SYSTEM,
NT39016_SYSTEM_RESET_N | NT39016_SYSTEM_STANDBY);
if (ret) {
- dev_err(panel->dev, "Unable to enable panel: %d\n", ret);
+ dev_err(drm_panel->dev, "Unable to enable panel: %d\n", ret);
return ret;
}
@@ -193,7 +192,7 @@ static int nt39016_disable(struct drm_panel *drm_panel)
err = regmap_write(panel->map, NT39016_REG_SYSTEM,
NT39016_SYSTEM_RESET_N);
if (err) {
- dev_err(panel->dev, "Unable to disable panel: %d\n", err);
+ dev_err(drm_panel->dev, "Unable to disable panel: %d\n", err);
return err;
}
@@ -252,7 +251,7 @@ static int nt39016_probe(struct spi_device *spi)
if (!panel)
return -ENOMEM;
- panel->dev = dev;
+ panel->drm_panel.dev = dev;
spi_set_drvdata(spi, panel);
panel->panel_info = of_device_get_match_data(dev);
--
2.28.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] drm/panel: novatek,nt39016: Remove 'dev' field in priv struct
2020-08-19 18:14 ` [PATCH] drm/panel: novatek,nt39016: " Paul Cercueil
@ 2020-08-19 18:20 ` Sam Ravnborg
-1 siblings, 0 replies; 4+ messages in thread
From: Sam Ravnborg @ 2020-08-19 18:20 UTC (permalink / raw)
To: Paul Cercueil; +Cc: Thierry Reding, od, linux-kernel, dri-devel
Hi Paul.
On Wed, Aug 19, 2020 at 08:14:12PM +0200, Paul Cercueil wrote:
> There is already a 'struct device' pointer in the drm_panel structure,
> that we can access easily from our priv structure, so there's no need
> for a separate 'dev' field there.
>
> This also allows drm_panel_of_backlight() to work properly, as it
> requires the drm_panel.dev field to be initialized.
>
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
> drivers/gpu/drm/panel/panel-novatek-nt39016.c | 11 +++++------
> 1 file changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-novatek-nt39016.c b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> index 39f7be679da5..292ad1d58313 100644
> --- a/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> +++ b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> @@ -56,7 +56,6 @@ struct nt39016_panel_info {
>
> struct nt39016 {
> struct drm_panel drm_panel;
> - struct device *dev;
> struct regmap *map;
> struct regulator *supply;
> const struct nt39016_panel_info *panel_info;
> @@ -124,7 +123,7 @@ static int nt39016_prepare(struct drm_panel *drm_panel)
>
> err = regulator_enable(panel->supply);
> if (err) {
> - dev_err(panel->dev, "Failed to enable power supply: %d\n", err);
> + dev_err(drm_panel->dev, "Failed to enable power supply: %d\n", err);
> return err;
> }
>
> @@ -143,7 +142,7 @@ static int nt39016_prepare(struct drm_panel *drm_panel)
> err = regmap_multi_reg_write(panel->map, nt39016_panel_regs,
> ARRAY_SIZE(nt39016_panel_regs));
> if (err) {
> - dev_err(panel->dev, "Failed to init registers: %d\n", err);
> + dev_err(drm_panel->dev, "Failed to init registers: %d\n", err);
> goto err_disable_regulator;
> }
>
> @@ -173,7 +172,7 @@ static int nt39016_enable(struct drm_panel *drm_panel)
> ret = regmap_write(panel->map, NT39016_REG_SYSTEM,
> NT39016_SYSTEM_RESET_N | NT39016_SYSTEM_STANDBY);
> if (ret) {
> - dev_err(panel->dev, "Unable to enable panel: %d\n", ret);
> + dev_err(drm_panel->dev, "Unable to enable panel: %d\n", ret);
> return ret;
> }
>
> @@ -193,7 +192,7 @@ static int nt39016_disable(struct drm_panel *drm_panel)
> err = regmap_write(panel->map, NT39016_REG_SYSTEM,
> NT39016_SYSTEM_RESET_N);
> if (err) {
> - dev_err(panel->dev, "Unable to disable panel: %d\n", err);
> + dev_err(drm_panel->dev, "Unable to disable panel: %d\n", err);
> return err;
> }
>
> @@ -252,7 +251,7 @@ static int nt39016_probe(struct spi_device *spi)
> if (!panel)
> return -ENOMEM;
>
> - panel->dev = dev;
> + panel->drm_panel.dev = dev;
This is wrong. You need to fix when drm_panel_of_backlight is called.
From drm_panel.c:
* drm_panel_of_backlight() must be called after the call to drm_panel_init().
Then the assignment can go away.
Sam
> spi_set_drvdata(spi, panel);
>
> panel->panel_info = of_device_get_match_data(dev);
> --
> 2.28.0
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] drm/panel: novatek,nt39016: Remove 'dev' field in priv struct
@ 2020-08-19 18:20 ` Sam Ravnborg
0 siblings, 0 replies; 4+ messages in thread
From: Sam Ravnborg @ 2020-08-19 18:20 UTC (permalink / raw)
To: Paul Cercueil; +Cc: Thierry Reding, od, dri-devel, linux-kernel
Hi Paul.
On Wed, Aug 19, 2020 at 08:14:12PM +0200, Paul Cercueil wrote:
> There is already a 'struct device' pointer in the drm_panel structure,
> that we can access easily from our priv structure, so there's no need
> for a separate 'dev' field there.
>
> This also allows drm_panel_of_backlight() to work properly, as it
> requires the drm_panel.dev field to be initialized.
>
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
> drivers/gpu/drm/panel/panel-novatek-nt39016.c | 11 +++++------
> 1 file changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-novatek-nt39016.c b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> index 39f7be679da5..292ad1d58313 100644
> --- a/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> +++ b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> @@ -56,7 +56,6 @@ struct nt39016_panel_info {
>
> struct nt39016 {
> struct drm_panel drm_panel;
> - struct device *dev;
> struct regmap *map;
> struct regulator *supply;
> const struct nt39016_panel_info *panel_info;
> @@ -124,7 +123,7 @@ static int nt39016_prepare(struct drm_panel *drm_panel)
>
> err = regulator_enable(panel->supply);
> if (err) {
> - dev_err(panel->dev, "Failed to enable power supply: %d\n", err);
> + dev_err(drm_panel->dev, "Failed to enable power supply: %d\n", err);
> return err;
> }
>
> @@ -143,7 +142,7 @@ static int nt39016_prepare(struct drm_panel *drm_panel)
> err = regmap_multi_reg_write(panel->map, nt39016_panel_regs,
> ARRAY_SIZE(nt39016_panel_regs));
> if (err) {
> - dev_err(panel->dev, "Failed to init registers: %d\n", err);
> + dev_err(drm_panel->dev, "Failed to init registers: %d\n", err);
> goto err_disable_regulator;
> }
>
> @@ -173,7 +172,7 @@ static int nt39016_enable(struct drm_panel *drm_panel)
> ret = regmap_write(panel->map, NT39016_REG_SYSTEM,
> NT39016_SYSTEM_RESET_N | NT39016_SYSTEM_STANDBY);
> if (ret) {
> - dev_err(panel->dev, "Unable to enable panel: %d\n", ret);
> + dev_err(drm_panel->dev, "Unable to enable panel: %d\n", ret);
> return ret;
> }
>
> @@ -193,7 +192,7 @@ static int nt39016_disable(struct drm_panel *drm_panel)
> err = regmap_write(panel->map, NT39016_REG_SYSTEM,
> NT39016_SYSTEM_RESET_N);
> if (err) {
> - dev_err(panel->dev, "Unable to disable panel: %d\n", err);
> + dev_err(drm_panel->dev, "Unable to disable panel: %d\n", err);
> return err;
> }
>
> @@ -252,7 +251,7 @@ static int nt39016_probe(struct spi_device *spi)
> if (!panel)
> return -ENOMEM;
>
> - panel->dev = dev;
> + panel->drm_panel.dev = dev;
This is wrong. You need to fix when drm_panel_of_backlight is called.
From drm_panel.c:
* drm_panel_of_backlight() must be called after the call to drm_panel_init().
Then the assignment can go away.
Sam
> spi_set_drvdata(spi, panel);
>
> panel->panel_info = of_device_get_match_data(dev);
> --
> 2.28.0
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-08-20 7:15 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-08-19 18:14 [PATCH] drm/panel: novatek, nt39016: Remove 'dev' field in priv struct Paul Cercueil
2020-08-19 18:14 ` [PATCH] drm/panel: novatek,nt39016: " Paul Cercueil
2020-08-19 18:20 ` Sam Ravnborg
2020-08-19 18:20 ` Sam Ravnborg
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.