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| author | Alexander Stein <alexander.stein@systec-electronic.com> | 2010-07-20 06:55:40 (GMT) |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2010-09-25 13:22:51 (GMT) |
| commit | cdfcedbf250ba2ec01b2555cffde83e9947e9fbf (patch) | |
| tree | 8c4d372bcb71a1f801d23a479c803f67f0d214f5 | |
| parent | 55b05237b972e5bed8b9d29804bbfcbc9c5d4a55 (diff) | |
| download | u-boot-fsl-qoriq-cdfcedbf250ba2ec01b2555cffde83e9947e9fbf.tar.xz | |
atmel_lcd: Allow contrast polarity to be either positive or negative
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
| -rw-r--r-- | drivers/video/atmel_lcdfb.c | 3 | ||||
| -rw-r--r-- | 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 */ |