diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2019-12-07 15:03:31 +0100 |
---|---|---|
committer | Sam Ravnborg <sam@ravnborg.org> | 2019-12-09 22:57:26 +0100 |
commit | 0fe1564bd61642ec348efbe9ab9c50b3068fb788 (patch) | |
tree | f18edef6f405f837f577a965ec0226a42951d3dd /drivers/gpu/drm | |
parent | 152dbdeab1b2571c107357a7bd59f5cd5be52e30 (diff) | |
download | linux-0fe1564bd61642ec348efbe9ab9c50b3068fb788.tar.bz2 |
drm/panel: simple: use drm_panel backlight support
Use drm_panel infrastructure for backlight.
Replace direct calls with drm_panel_*() calls
to utilize the drm_panel support.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191207140353.23967-4-sam@ravnborg.org
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r-- | drivers/gpu/drm/panel/panel-simple.c | 50 |
1 files changed, 11 insertions, 39 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 72f69709f349..a5df6d6dd455 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -21,7 +21,6 @@ * DEALINGS IN THE SOFTWARE. */ -#include <linux/backlight.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/module.h> @@ -105,7 +104,6 @@ struct panel_simple { const struct panel_desc *desc; - struct backlight_device *backlight; struct regulator *supply; struct i2c_adapter *ddc; @@ -236,12 +234,6 @@ static int panel_simple_disable(struct drm_panel *panel) if (!p->enabled) return 0; - if (p->backlight) { - p->backlight->props.power = FB_BLANK_POWERDOWN; - p->backlight->props.state |= BL_CORE_FBBLANK; - backlight_update_status(p->backlight); - } - if (p->desc->delay.disable) msleep(p->desc->delay.disable); @@ -307,12 +299,6 @@ static int panel_simple_enable(struct drm_panel *panel) if (p->desc->delay.enable) msleep(p->desc->delay.enable); - if (p->backlight) { - p->backlight->props.state &= ~BL_CORE_FBBLANK; - p->backlight->props.power = FB_BLANK_UNBLANK; - backlight_update_status(p->backlight); - } - p->enabled = true; return 0; @@ -414,9 +400,9 @@ static void panel_simple_parse_panel_timing_node(struct device *dev, static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) { - struct device_node *backlight, *ddc; struct panel_simple *panel; struct display_timing dt; + struct device_node *ddc; int err; panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL); @@ -442,24 +428,13 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) return err; } - backlight = of_parse_phandle(dev->of_node, "backlight", 0); - if (backlight) { - panel->backlight = of_find_backlight_by_node(backlight); - of_node_put(backlight); - - if (!panel->backlight) - return -EPROBE_DEFER; - } - ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0); if (ddc) { panel->ddc = of_find_i2c_adapter_by_node(ddc); of_node_put(ddc); - if (!panel->ddc) { - err = -EPROBE_DEFER; - goto free_backlight; - } + if (!panel->ddc) + return -EPROBE_DEFER; } if (!of_get_display_timing(dev->of_node, "panel-timing", &dt)) @@ -468,6 +443,10 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) drm_panel_init(&panel->base, dev, &panel_simple_funcs, desc->connector_type); + err = drm_panel_of_backlight(&panel->base); + if (err) + goto free_ddc; + err = drm_panel_add(&panel->base); if (err < 0) goto free_ddc; @@ -479,9 +458,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) free_ddc: if (panel->ddc) put_device(&panel->ddc->dev); -free_backlight: - if (panel->backlight) - put_device(&panel->backlight->dev); return err; } @@ -491,16 +467,12 @@ static int panel_simple_remove(struct device *dev) struct panel_simple *panel = dev_get_drvdata(dev); drm_panel_remove(&panel->base); - - panel_simple_disable(&panel->base); - panel_simple_unprepare(&panel->base); + drm_panel_disable(&panel->base); + drm_panel_unprepare(&panel->base); if (panel->ddc) put_device(&panel->ddc->dev); - if (panel->backlight) - put_device(&panel->backlight->dev); - return 0; } @@ -508,8 +480,8 @@ static void panel_simple_shutdown(struct device *dev) { struct panel_simple *panel = dev_get_drvdata(dev); - panel_simple_disable(&panel->base); - panel_simple_unprepare(&panel->base); + drm_panel_disable(&panel->base); + drm_panel_unprepare(&panel->base); } static const struct drm_display_mode ampire_am_480272h3tmqw_t01h_mode = { |