Re: [U-Boot] [PATCH] Add inverted clock polarity support for Atmel LCD driver

On 18:56 Wed 15 Jul , Dimitar Dimitrov wrote:

This is my third try for Olimex SAM9-L9260/61 board support patches.

Here follows the first patch.

Boards utilizing the Atmel LCD driver can now specify that the LCD clock must be inverted by defining the macro CONFIG_LCD_INVERTED_CLOCK.

---

README | 5 +++++ drivers/video/atmel_lcdfb.c | 3 +++ 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/README b/README index de700bd..d7c0afe 100644 --- a/README +++ b/README @@ -1063,6 +1063,11 @@ The following options need to be configured: Normally display is black on white background; define CONFIG_SYS_WHITE_ON_BLACK to get it inverted.

• CONFIG_LCD_INVERTED_CLOCK
  

• Define this if your LCD needs inverted clock polarity. Note
  

• that this feature will work only if the selected LCD driver 
  

• and hardware controller support it.
  

• Splash Screen Support: CONFIG_SPLASH_SCREEN

  If this option is set, the environment is checked for

diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index db86763..d3e988e 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -112,6 +112,9 @@ void lcd_ctrl_init(void *lcdbase)

value |= panel_info.vl_sync; value |= (panel_info.vl_bpix << 5); +#if defined(CONFIG_LCD_INVERTED_CLOCK)

• value |= ATMEL_LCDC_INVCLK_INVERTED;

+#endif

NACK do this throught the struct via vl_sync as in linux

Best Regards, J.