* [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support @ 2019-01-19 18:21 Andreas Kemnade 2019-01-19 18:21 ` [PATCH 1/2] " Andreas Kemnade ` (2 more replies) 0 siblings, 3 replies; 8+ messages in thread From: Andreas Kemnade @ 2019-01-19 18:21 UTC (permalink / raw) To: tomi.valkeinen, airlied, daniel, laurent.pinchart, sre, dri-devel, robh+dt, mark.rutland, devicetree, linux-kernel, letux-kernel Cc: Andreas Kemnade This panel has a backlight, so add a property describing that and add the code to use that. This makes things like xset dpms force off also turn off the backlight, so we do not need to rely on additional userspace programs to do that. Andreas Kemnade (2): drm/omap: panel-tpo-td028ttec1: add backlight support dt-bindings: panel: td028ttec1: add backlight property .../bindings/display/panel/tpo,td028ttec1.txt | 2 ++ .../gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | 18 +++++++++++++++--- 2 files changed, 17 insertions(+), 3 deletions(-) -- 2.11.0 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH 1/2] drm/omap: panel-tpo-td028ttec1: add backlight support 2019-01-19 18:21 [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support Andreas Kemnade @ 2019-01-19 18:21 ` Andreas Kemnade 2019-02-04 8:13 ` Tomi Valkeinen 2019-01-19 18:21 ` [PATCH 2/2] dt-bindings: panel: td028ttec1: add backlight property Andreas Kemnade 2019-02-01 11:33 ` [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support Andreas Kemnade 2 siblings, 1 reply; 8+ messages in thread From: Andreas Kemnade @ 2019-01-19 18:21 UTC (permalink / raw) To: tomi.valkeinen, airlied, daniel, laurent.pinchart, sre, dri-devel, robh+dt, mark.rutland, devicetree, linux-kernel, letux-kernel Cc: Andreas Kemnade This panel has a backlight, so fetch it from devicetree using the as documented in panel-common.txt. It is implemented the same way as in panel-dpi.c This ensures the backlight is also disabled when the display is turned off like when doing xset dpms force off. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> --- .../gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c index 7ddc8c574a61..f326ba9dcf62 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c @@ -35,6 +35,8 @@ struct panel_drv_data { struct videomode vm; + struct backlight_device *backlight; + struct spi_device *spi_dev; }; @@ -268,6 +270,8 @@ static int td028ttec1_panel_enable(struct omap_dss_device *dssdev) r |= jbt_ret_write_0(ddata, JBT_REG_DISPLAY_ON); + backlight_enable(ddata->backlight); + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; transfer_err: @@ -283,6 +287,8 @@ static void td028ttec1_panel_disable(struct omap_dss_device *dssdev) if (!omapdss_device_is_enabled(dssdev)) return; + backlight_disable(ddata->backlight); + dev_dbg(dssdev->dev, "td028ttec1_panel_disable()\n"); jbt_ret_write_0(ddata, JBT_REG_DISPLAY_OFF); @@ -321,6 +327,15 @@ static int td028ttec1_panel_probe(struct spi_device *spi) dev_dbg(&spi->dev, "%s\n", __func__); + ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); + if (ddata == NULL) + return -ENOMEM; + + ddata->backlight = devm_of_find_backlight(&spi->dev); + + if (IS_ERR(ddata->backlight)) + return PTR_ERR(ddata->backlight); + spi->bits_per_word = 9; spi->mode = SPI_MODE_3; @@ -330,9 +345,6 @@ static int td028ttec1_panel_probe(struct spi_device *spi) return r; } - ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); - if (ddata == NULL) - return -ENOMEM; dev_set_drvdata(&spi->dev, ddata); -- 2.11.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH 1/2] drm/omap: panel-tpo-td028ttec1: add backlight support 2019-01-19 18:21 ` [PATCH 1/2] " Andreas Kemnade @ 2019-02-04 8:13 ` Tomi Valkeinen 0 siblings, 0 replies; 8+ messages in thread From: Tomi Valkeinen @ 2019-02-04 8:13 UTC (permalink / raw) To: Andreas Kemnade Cc: airlied, daniel, laurent.pinchart, sre, dri-devel, robh+dt, mark.rutland, devicetree, linux-kernel, letux-kernel Hi, On 19/01/2019 20:21, Andreas Kemnade wrote: > This panel has a backlight, so fetch it from devicetree using the > as documented in panel-common.txt. It is implemented the same way as in Extra words above, or maybe some are missing... > panel-dpi.c > This ensures the backlight is also disabled when the display is > turned off like when doing xset dpms force off. > > Signed-off-by: Andreas Kemnade <andreas@kemnade.info> > --- > .../gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | 18 +++++++++++++++--- > 1 file changed, 15 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > index 7ddc8c574a61..f326ba9dcf62 100644 > --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > @@ -35,6 +35,8 @@ struct panel_drv_data { > > struct videomode vm; > > + struct backlight_device *backlight; > + > struct spi_device *spi_dev; > }; > > @@ -268,6 +270,8 @@ static int td028ttec1_panel_enable(struct omap_dss_device *dssdev) > > r |= jbt_ret_write_0(ddata, JBT_REG_DISPLAY_ON); > > + backlight_enable(ddata->backlight); > + > dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; > > transfer_err: > @@ -283,6 +287,8 @@ static void td028ttec1_panel_disable(struct omap_dss_device *dssdev) > if (!omapdss_device_is_enabled(dssdev)) > return; > > + backlight_disable(ddata->backlight); > + > dev_dbg(dssdev->dev, "td028ttec1_panel_disable()\n"); > > jbt_ret_write_0(ddata, JBT_REG_DISPLAY_OFF); > @@ -321,6 +327,15 @@ static int td028ttec1_panel_probe(struct spi_device *spi) > > dev_dbg(&spi->dev, "%s\n", __func__); > > + ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); > + if (ddata == NULL) > + return -ENOMEM; > + > + ddata->backlight = devm_of_find_backlight(&spi->dev); > + > + if (IS_ERR(ddata->backlight)) > + return PTR_ERR(ddata->backlight); > + Is there a reason for moving the ddata alloc here, instead of keeping it where it was? > spi->bits_per_word = 9; > spi->mode = SPI_MODE_3; > > @@ -330,9 +345,6 @@ static int td028ttec1_panel_probe(struct spi_device *spi) > return r; > } > > - ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); > - if (ddata == NULL) > - return -ENOMEM; > This leaves an extra empty line here. > dev_set_drvdata(&spi->dev, ddata); > Tomi -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 1/2] drm/omap: panel-tpo-td028ttec1: add backlight support @ 2019-02-04 8:13 ` Tomi Valkeinen 0 siblings, 0 replies; 8+ messages in thread From: Tomi Valkeinen @ 2019-02-04 8:13 UTC (permalink / raw) To: Andreas Kemnade Cc: mark.rutland, devicetree, airlied, sre, dri-devel, linux-kernel, robh+dt, laurent.pinchart, letux-kernel Hi, On 19/01/2019 20:21, Andreas Kemnade wrote: > This panel has a backlight, so fetch it from devicetree using the > as documented in panel-common.txt. It is implemented the same way as in Extra words above, or maybe some are missing... > panel-dpi.c > This ensures the backlight is also disabled when the display is > turned off like when doing xset dpms force off. > > Signed-off-by: Andreas Kemnade <andreas@kemnade.info> > --- > .../gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | 18 +++++++++++++++--- > 1 file changed, 15 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > index 7ddc8c574a61..f326ba9dcf62 100644 > --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > @@ -35,6 +35,8 @@ struct panel_drv_data { > > struct videomode vm; > > + struct backlight_device *backlight; > + > struct spi_device *spi_dev; > }; > > @@ -268,6 +270,8 @@ static int td028ttec1_panel_enable(struct omap_dss_device *dssdev) > > r |= jbt_ret_write_0(ddata, JBT_REG_DISPLAY_ON); > > + backlight_enable(ddata->backlight); > + > dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; > > transfer_err: > @@ -283,6 +287,8 @@ static void td028ttec1_panel_disable(struct omap_dss_device *dssdev) > if (!omapdss_device_is_enabled(dssdev)) > return; > > + backlight_disable(ddata->backlight); > + > dev_dbg(dssdev->dev, "td028ttec1_panel_disable()\n"); > > jbt_ret_write_0(ddata, JBT_REG_DISPLAY_OFF); > @@ -321,6 +327,15 @@ static int td028ttec1_panel_probe(struct spi_device *spi) > > dev_dbg(&spi->dev, "%s\n", __func__); > > + ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); > + if (ddata == NULL) > + return -ENOMEM; > + > + ddata->backlight = devm_of_find_backlight(&spi->dev); > + > + if (IS_ERR(ddata->backlight)) > + return PTR_ERR(ddata->backlight); > + Is there a reason for moving the ddata alloc here, instead of keeping it where it was? > spi->bits_per_word = 9; > spi->mode = SPI_MODE_3; > > @@ -330,9 +345,6 @@ static int td028ttec1_panel_probe(struct spi_device *spi) > return r; > } > > - ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); > - if (ddata == NULL) > - return -ENOMEM; > This leaves an extra empty line here. > dev_set_drvdata(&spi->dev, ddata); > Tomi -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 1/2] drm/omap: panel-tpo-td028ttec1: add backlight support 2019-02-04 8:13 ` Tomi Valkeinen @ 2019-02-04 10:23 ` Andreas Kemnade -1 siblings, 0 replies; 8+ messages in thread From: Andreas Kemnade @ 2019-02-04 10:23 UTC (permalink / raw) To: Tomi Valkeinen Cc: airlied, daniel, laurent.pinchart, sre, dri-devel, robh+dt, mark.rutland, devicetree, linux-kernel, letux-kernel [-- Attachment #1: Type: text/plain, Size: 2815 bytes --] Hi, On Mon, 4 Feb 2019 10:13:46 +0200 Tomi Valkeinen <tomi.valkeinen@ti.com> wrote: > Hi, > > On 19/01/2019 20:21, Andreas Kemnade wrote: > > This panel has a backlight, so fetch it from devicetree using the > > as documented in panel-common.txt. It is implemented the same way as in > > Extra words above, or maybe some are missing... > oops, This panel has a backlight, so fetch it from devicetree using the properties as documented in panel-common.txt. It is implemented the same way as in panel-dpi.c > > panel-dpi.c > > This ensures the backlight is also disabled when the display is > > turned off like when doing xset dpms force off. > > > > Signed-off-by: Andreas Kemnade <andreas@kemnade.info> > > --- > > .../gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | 18 +++++++++++++++--- > > 1 file changed, 15 insertions(+), 3 deletions(-) > > > > diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > > index 7ddc8c574a61..f326ba9dcf62 100644 > > --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > > +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > > @@ -35,6 +35,8 @@ struct panel_drv_data { > > > > struct videomode vm; > > > > + struct backlight_device *backlight; > > + > > struct spi_device *spi_dev; > > }; > > > > @@ -268,6 +270,8 @@ static int td028ttec1_panel_enable(struct omap_dss_device *dssdev) > > > > r |= jbt_ret_write_0(ddata, JBT_REG_DISPLAY_ON); > > > > + backlight_enable(ddata->backlight); > > + > > dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; > > > > transfer_err: > > @@ -283,6 +287,8 @@ static void td028ttec1_panel_disable(struct omap_dss_device *dssdev) > > if (!omapdss_device_is_enabled(dssdev)) > > return; > > > > + backlight_disable(ddata->backlight); > > + > > dev_dbg(dssdev->dev, "td028ttec1_panel_disable()\n"); > > > > jbt_ret_write_0(ddata, JBT_REG_DISPLAY_OFF); > > @@ -321,6 +327,15 @@ static int td028ttec1_panel_probe(struct spi_device *spi) > > > > dev_dbg(&spi->dev, "%s\n", __func__); > > > > + ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); > > + if (ddata == NULL) > > + return -ENOMEM; > > + > > + ddata->backlight = devm_of_find_backlight(&spi->dev); > > + > > + if (IS_ERR(ddata->backlight)) > > + return PTR_ERR(ddata->backlight); > > + > > Is there a reason for moving the ddata alloc here, instead of keeping it > where it was? > Well, I was just unsure if the spi_setup needs to be undone on error, so I moved things around. But the kzalloc() error check would face the same problem and other error checks further on, too. So I can rather keep it as is. I will send a v2. Regards, Andreas [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 833 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 1/2] drm/omap: panel-tpo-td028ttec1: add backlight support @ 2019-02-04 10:23 ` Andreas Kemnade 0 siblings, 0 replies; 8+ messages in thread From: Andreas Kemnade @ 2019-02-04 10:23 UTC (permalink / raw) To: Tomi Valkeinen Cc: airlied, daniel, laurent.pinchart, sre, dri-devel, robh+dt, mark.rutland, devicetree, linux-kernel, letux-kernel [-- Attachment #1: Type: text/plain, Size: 2815 bytes --] Hi, On Mon, 4 Feb 2019 10:13:46 +0200 Tomi Valkeinen <tomi.valkeinen@ti.com> wrote: > Hi, > > On 19/01/2019 20:21, Andreas Kemnade wrote: > > This panel has a backlight, so fetch it from devicetree using the > > as documented in panel-common.txt. It is implemented the same way as in > > Extra words above, or maybe some are missing... > oops, This panel has a backlight, so fetch it from devicetree using the properties as documented in panel-common.txt. It is implemented the same way as in panel-dpi.c > > panel-dpi.c > > This ensures the backlight is also disabled when the display is > > turned off like when doing xset dpms force off. > > > > Signed-off-by: Andreas Kemnade <andreas@kemnade.info> > > --- > > .../gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | 18 +++++++++++++++--- > > 1 file changed, 15 insertions(+), 3 deletions(-) > > > > diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > > index 7ddc8c574a61..f326ba9dcf62 100644 > > --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > > +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c > > @@ -35,6 +35,8 @@ struct panel_drv_data { > > > > struct videomode vm; > > > > + struct backlight_device *backlight; > > + > > struct spi_device *spi_dev; > > }; > > > > @@ -268,6 +270,8 @@ static int td028ttec1_panel_enable(struct omap_dss_device *dssdev) > > > > r |= jbt_ret_write_0(ddata, JBT_REG_DISPLAY_ON); > > > > + backlight_enable(ddata->backlight); > > + > > dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; > > > > transfer_err: > > @@ -283,6 +287,8 @@ static void td028ttec1_panel_disable(struct omap_dss_device *dssdev) > > if (!omapdss_device_is_enabled(dssdev)) > > return; > > > > + backlight_disable(ddata->backlight); > > + > > dev_dbg(dssdev->dev, "td028ttec1_panel_disable()\n"); > > > > jbt_ret_write_0(ddata, JBT_REG_DISPLAY_OFF); > > @@ -321,6 +327,15 @@ static int td028ttec1_panel_probe(struct spi_device *spi) > > > > dev_dbg(&spi->dev, "%s\n", __func__); > > > > + ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); > > + if (ddata == NULL) > > + return -ENOMEM; > > + > > + ddata->backlight = devm_of_find_backlight(&spi->dev); > > + > > + if (IS_ERR(ddata->backlight)) > > + return PTR_ERR(ddata->backlight); > > + > > Is there a reason for moving the ddata alloc here, instead of keeping it > where it was? > Well, I was just unsure if the spi_setup needs to be undone on error, so I moved things around. But the kzalloc() error check would face the same problem and other error checks further on, too. So I can rather keep it as is. I will send a v2. Regards, Andreas [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 833 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH 2/2] dt-bindings: panel: td028ttec1: add backlight property 2019-01-19 18:21 [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support Andreas Kemnade 2019-01-19 18:21 ` [PATCH 1/2] " Andreas Kemnade @ 2019-01-19 18:21 ` Andreas Kemnade 2019-02-01 11:33 ` [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support Andreas Kemnade 2 siblings, 0 replies; 8+ messages in thread From: Andreas Kemnade @ 2019-01-19 18:21 UTC (permalink / raw) To: tomi.valkeinen, airlied, daniel, laurent.pinchart, sre, dri-devel, robh+dt, mark.rutland, devicetree, linux-kernel, letux-kernel Cc: Andreas Kemnade This add an additional backlight property as described in panel-common.txt Signed-off-by: Andreas Kemnade <andreas@kemnade.info> --- Documentation/devicetree/bindings/display/panel/tpo,td028ttec1.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/display/panel/tpo,td028ttec1.txt b/Documentation/devicetree/bindings/display/panel/tpo,td028ttec1.txt index ed34253d9fb1..898e06ecf4ef 100644 --- a/Documentation/devicetree/bindings/display/panel/tpo,td028ttec1.txt +++ b/Documentation/devicetree/bindings/display/panel/tpo,td028ttec1.txt @@ -6,6 +6,7 @@ Required properties: Optional properties: - label: a symbolic name for the panel +- backlight: phandle of the backlight device Required nodes: - Video port for DPI input @@ -21,6 +22,7 @@ lcd-panel: td028ttec1@0 { spi-cpha; label = "lcd"; + backlight = <&backlight>; port { lcd_in: endpoint { remote-endpoint = <&dpi_out>; -- 2.11.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support 2019-01-19 18:21 [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support Andreas Kemnade 2019-01-19 18:21 ` [PATCH 1/2] " Andreas Kemnade 2019-01-19 18:21 ` [PATCH 2/2] dt-bindings: panel: td028ttec1: add backlight property Andreas Kemnade @ 2019-02-01 11:33 ` Andreas Kemnade 2 siblings, 0 replies; 8+ messages in thread From: Andreas Kemnade @ 2019-02-01 11:33 UTC (permalink / raw) To: tomi.valkeinen, airlied, daniel, laurent.pinchart, sre, dri-devel, robh+dt, mark.rutland, devicetree, linux-kernel, letux-kernel [-- Attachment #1: Type: text/plain, Size: 727 bytes --] ping On Sat, 19 Jan 2019 19:21:29 +0100 Andreas Kemnade <andreas@kemnade.info> wrote: > This panel has a backlight, so add a property describing that and > add the code to use that. > This makes things like xset dpms force off > also turn off the backlight, so we do not need to rely on additional > userspace programs to do that. > > Andreas Kemnade (2): > drm/omap: panel-tpo-td028ttec1: add backlight support > dt-bindings: panel: td028ttec1: add backlight property > > .../bindings/display/panel/tpo,td028ttec1.txt | 2 ++ > .../gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | 18 +++++++++++++++--- > 2 files changed, 17 insertions(+), 3 deletions(-) > > -- > 2.11.0 > > [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 833 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2019-02-04 10:24 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-01-19 18:21 [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support Andreas Kemnade 2019-01-19 18:21 ` [PATCH 1/2] " Andreas Kemnade 2019-02-04 8:13 ` Tomi Valkeinen 2019-02-04 8:13 ` Tomi Valkeinen 2019-02-04 10:23 ` Andreas Kemnade 2019-02-04 10:23 ` Andreas Kemnade 2019-01-19 18:21 ` [PATCH 2/2] dt-bindings: panel: td028ttec1: add backlight property Andreas Kemnade 2019-02-01 11:33 ` [PATCH 0/2] drm/omap: panel-tpo-td028ttec1: add backlight support Andreas Kemnade
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