[U-Boot] [PATCH v4] video: atmel: implement lcd_setcolreg funtion

[Bo Shen]

implement the common api lce_setcolreg in include/lcd.h

Signed-off-by: Bo Shen <voice.shen at atmel.com>
---
since v3:
  * add magic number
since v2:
  * add this single patch
---
 drivers/video/atmel_hlcdfb.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/video/atmel_hlcdfb.c b/drivers/video/atmel_hlcdfb.c
index beb7fa3..8ebde04 100644
--- a/drivers/video/atmel_hlcdfb.c
+++ b/drivers/video/atmel_hlcdfb.c
@@ -51,6 +51,16 @@ short console_row;
 #define lcdc_readl(reg)		__raw_readl((reg))
 #define lcdc_writel(reg, val)	__raw_writel((val), (reg))
 
+/*
+ * the CLUT register map as following
+ * RCLUT(24 ~ 16), GCLUT(15 ~ 8), BCLUT(7 ~ 0)
+ */
+void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
+{
+	lcdc_writel((red << 16) & 0xff0000 | (green << 8) & 0xff00 |
+		blue & 0xff, panel_info.mmio + ATMEL_LCDC_LUT(regno));
+}
+
 void lcd_ctrl_init(void *lcdbase)
 {
 	unsigned long value;
-- 
1.7.9.5