Signed-off-by: Alexander Stein <[email protected]>
---
drivers/video/atmel_lcdfb.c | 3 ++-
include/lcd.h | 1 +
2 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index db86763..c02ffd8 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -143,8 +143,9 @@ void lcd_ctrl_init(void *lcdbase)
/* Set contrast */
value = ATMEL_LCDC_PS_DIV8 |
- ATMEL_LCDC_POL_POSITIVE |
ATMEL_LCDC_ENA_PWMENABLE;
+ if (!panel_info.vl_cont_pol_low)
+ value |= ATMEL_LCDC_POL_POSITIVE;
lcdc_writel(panel_info.mmio, ATMEL_LCDC_CONTRAST_CTR, value);
lcdc_writel(panel_info.mmio, ATMEL_LCDC_CONTRAST_VAL,
ATMEL_LCDC_CVAL_DEFAULT);
diff --git a/include/lcd.h b/include/lcd.h
index cd9d49d..0e098d9 100644
--- a/include/lcd.h
+++ b/include/lcd.h
@@ -167,6 +167,7 @@ typedef struct vidinfo {
u_long vl_sync; /* Horizontal / vertical sync */
u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8,
4 = 16 */
u_long vl_tft; /* 0 = passive, 1 = TFT */
+ u_long vl_cont_pol_low; /* contrast polarity is low */
/* Horizontal control register. */
u_long vl_hsync_len; /* Length of horizontal sync */
--
1.7.1
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