fbdev: sh_mobile_lcdcfb: add backlight support

Support for backlight devices controlled through board-specific
routines. Backlights can be defined per-channel and follow fbdev
directives to switch off as the LCD blanks or is turned on/off.

Signed-off-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h
index daabae5817c6..f2e6ab857fa8 100644
--- a/include/video/sh_mobile_lcdc.h
+++ b/include/video/sh_mobile_lcdc.h
@@ -59,6 +59,8 @@ struct sh_mobile_lcdc_board_cfg {
                                struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
         void (*display_on)(void *board_data, struct fb_info *info);
         void (*display_off)(void *board_data);
+        int (*set_brightness)(void *board_data, int brightness);
+        int (*get_brightness)(void *board_data);
 };
 
 struct sh_mobile_lcdc_lcd_size_cfg { /* width and height of panel in mm */
@@ -66,6 +68,12 @@ struct sh_mobile_lcdc_lcd_size_cfg { /* width and height of panel in mm */
         unsigned long height;
 };
 
+/* backlight info */
+struct sh_mobile_lcdc_bl_info {
+        const char *name;
+        int max_brightness;
+};
+
 struct sh_mobile_lcdc_chan_cfg {
         int chan;
         int bpp;
@@ -76,6 +84,7 @@ struct sh_mobile_lcdc_chan_cfg {
         int num_cfg;
         struct sh_mobile_lcdc_lcd_size_cfg lcd_size_cfg;
         struct sh_mobile_lcdc_board_cfg board_cfg;
+        struct sh_mobile_lcdc_bl_info bl_info;
         struct sh_mobile_lcdc_sys_bus_cfg sys_bus_cfg; /* only for SYSn I/F */
 };