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| author | Andreas Kemnade <andreas@kemnade.info> | 2019-02-05 07:38:12 +0100 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2019-03-18 11:42:14 +0200 |
| commit | b477a009b4266a3bdb851477e3f77bf27c2efcc3 (patch) | |
| tree | bc310635bd8ea4edc18e0fcdd3c0154887fb4dad /drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | |
| parent | fe4ed1b457943113ee1138c939fbdeede4af6cf3 (diff) | |
| download | linux-b477a009b4266a3bdb851477e3f77bf27c2efcc3.tar.bz2 | |
drm/omap: panel-tpo-td028ttec1: add backlight support
This panel has a backlight, so fetch it from devicetree using the
corresponding property 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>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c index fa80d4f7f699..2ad161e33106 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; }; @@ -258,12 +260,16 @@ static void td028ttec1_panel_enable(struct omap_dss_device *dssdev) if (r) dev_err(dssdev->dev, "%s: write error\n", __func__); + + backlight_enable(ddata->backlight); } static void td028ttec1_panel_disable(struct omap_dss_device *dssdev) { struct panel_drv_data *ddata = to_panel_data(dssdev); + backlight_disable(ddata->backlight); + dev_dbg(dssdev->dev, "td028ttec1_panel_disable()\n"); jbt_ret_write_0(ddata, JBT_REG_DISPLAY_OFF); @@ -311,6 +317,10 @@ static int td028ttec1_panel_probe(struct spi_device *spi) if (ddata == NULL) return -ENOMEM; + ddata->backlight = devm_of_find_backlight(&spi->dev); + if (IS_ERR(ddata->backlight)) + return PTR_ERR(ddata->backlight); + dev_set_drvdata(&spi->dev, ddata); ddata->spi_dev = spi; |