| Message ID | 20191202193230.21310-26-sam@ravnborg.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | drm/panel infrastructure + backlight update | expand |
Hi Sam, Thank you for the patch. On Mon, Dec 02, 2019 at 08:32:29PM +0100, Sam Ravnborg wrote: > Use the backlight support in drm_panel to simplify the driver > > Signed-off-by: Sam Ravnborg <sam@ravnborg.org> > Cc: Thierry Reding <thierry.reding@gmail.com> > Cc: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > --- > drivers/gpu/drm/panel/panel-tpo-td028ttec1.c | 14 ++++---------- > 1 file changed, 4 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c > index 37252590b541..cf29405a2dbe 100644 > --- a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c > +++ b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c > @@ -17,7 +17,6 @@ > * H. Nikolaus Schaller <hns@goldelico.com> > */ > > -#include <linux/backlight.h> > #include <linux/delay.h> > #include <linux/module.h> > #include <linux/spi/spi.h> > @@ -83,7 +82,6 @@ struct td028ttec1_panel { > struct drm_panel panel; > > struct spi_device *spi; > - struct backlight_device *backlight; > }; > > #define to_td028ttec1_device(p) container_of(p, struct td028ttec1_panel, panel) > @@ -243,8 +241,6 @@ static int td028ttec1_enable(struct drm_panel *panel) > if (ret) > return ret; > > - backlight_enable(lcd->backlight); > - > return 0; > } > > @@ -252,8 +248,6 @@ static int td028ttec1_disable(struct drm_panel *panel) > { > struct td028ttec1_panel *lcd = to_td028ttec1_device(panel); > > - backlight_disable(lcd->backlight); > - > jbt_ret_write_0(lcd, JBT_REG_DISPLAY_OFF, NULL); > > return 0; > @@ -334,10 +328,6 @@ static int td028ttec1_probe(struct spi_device *spi) > spi_set_drvdata(spi, lcd); > lcd->spi = spi; > > - lcd->backlight = devm_of_find_backlight(&spi->dev); > - if (IS_ERR(lcd->backlight)) > - return PTR_ERR(lcd->backlight); > - > spi->mode = SPI_MODE_3; > spi->bits_per_word = 9; > > @@ -350,6 +340,10 @@ static int td028ttec1_probe(struct spi_device *spi) > drm_panel_init(&lcd->panel, &lcd->spi->dev, &td028ttec1_funcs, > DRM_MODE_CONNECTOR_DPI); > > + ret = drm_panel_of_backlight(&lcd->panel); > + if (ret) > + return ret; > + > return drm_panel_add(&lcd->panel); > } >
diff --git a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c index 37252590b541..cf29405a2dbe 100644 --- a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c +++ b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c @@ -17,7 +17,6 @@ * H. Nikolaus Schaller <hns@goldelico.com> */ -#include <linux/backlight.h> #include <linux/delay.h> #include <linux/module.h> #include <linux/spi/spi.h> @@ -83,7 +82,6 @@ struct td028ttec1_panel { struct drm_panel panel; struct spi_device *spi; - struct backlight_device *backlight; }; #define to_td028ttec1_device(p) container_of(p, struct td028ttec1_panel, panel) @@ -243,8 +241,6 @@ static int td028ttec1_enable(struct drm_panel *panel) if (ret) return ret; - backlight_enable(lcd->backlight); - return 0; } @@ -252,8 +248,6 @@ static int td028ttec1_disable(struct drm_panel *panel) { struct td028ttec1_panel *lcd = to_td028ttec1_device(panel); - backlight_disable(lcd->backlight); - jbt_ret_write_0(lcd, JBT_REG_DISPLAY_OFF, NULL); return 0; @@ -334,10 +328,6 @@ static int td028ttec1_probe(struct spi_device *spi) spi_set_drvdata(spi, lcd); lcd->spi = spi; - lcd->backlight = devm_of_find_backlight(&spi->dev); - if (IS_ERR(lcd->backlight)) - return PTR_ERR(lcd->backlight); - spi->mode = SPI_MODE_3; spi->bits_per_word = 9; @@ -350,6 +340,10 @@ static int td028ttec1_probe(struct spi_device *spi) drm_panel_init(&lcd->panel, &lcd->spi->dev, &td028ttec1_funcs, DRM_MODE_CONNECTOR_DPI); + ret = drm_panel_of_backlight(&lcd->panel); + if (ret) + return ret; + return drm_panel_add(&lcd->panel); }
Use the backlight support in drm_panel to simplify the driver Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> --- drivers/gpu/drm/panel/panel-tpo-td028ttec1.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-)