OMAPDSS: Taal: remove external backlight support

Taal panel driver supports two kinds of backlight control: 1) using DSI
commands sent to the panel to control the backlight, 2) calling function
pointers going to the board file to control the backlight.

The second option is a bit hacky, and will no longer be needed when the
PWM driver supports the backlight features. After that we can use the
standard PWM backlight driver.

This patch removes the second backlight control mechanism, and adds a
boolean field, use_dsi_backlight, to nokia_dsi_panel_data which the
board file can use to inform whether the panel driver should use DSI
commands to control the backlight.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/include/video/omap-panel-nokia-dsi.h b/include/video/omap-panel-nokia-dsi.h
index 921ae932722..7dc71f9c13e 100644
--- a/include/video/omap-panel-nokia-dsi.h
+++ b/include/video/omap-panel-nokia-dsi.h
@@ -10,9 +10,7 @@ struct omap_dss_device;
  * @ext_te_gpio: external TE GPIO
  * @esd_interval: interval of ESD checks, 0 = disabled (ms)
  * @ulps_timeout: time to wait before entering ULPS, 0 = disabled (ms)
- * @max_backlight_level: maximum backlight level
- * @set_backlight: pointer to backlight set function
- * @get_backlight: pointer to backlight get function
+ * @use_dsi_backlight: true if panel uses DSI command to control backlight
  */
 struct nokia_dsi_panel_data {
 	const char *name;
@@ -25,9 +23,7 @@ struct nokia_dsi_panel_data {
 	unsigned esd_interval;
 	unsigned ulps_timeout;
 
-	int max_backlight_level;
-	int (*set_backlight)(struct omap_dss_device *dssdev, int level);
-	int (*get_backlight)(struct omap_dss_device *dssdev);
+	bool use_dsi_backlight;
 };
 
 #endif /* __OMAP_NOKIA_DSI_PANEL_H */