Hello Bo,
On 19/06/2014 09:07, Bo Shen wrote:
Hi Boris,
On 06/10/2014 12:04 AM, Boris BREZILLON wrote:
The HLCDC (High LCD Controller) IP supports 4 different output mode (RGB444, RGB565, RGB666 and RGB888) and the pin muxing depends on the chosen RGB mode.
Split the pin definition to be able to set the pin config according to the selected mode.
Signed-off-by: Boris BREZILLON boris.brezillon@free-electrons.com
arch/arm/boot/dts/sama5d3_lcd.dtsi | 127 ++++++++++++++++++++++++++++--------- 1 file changed, 96 insertions(+), 31 deletions(-)
On sama5d3xek board, it only works in 24bits output mode. And it depends on the hardware design. So, I think only keep only one pinctrl configuration.
I'm not describing a specific board design but rather SoC capabilities (this dtsi is SoC related not board related), and the sama5d3 SoC supports 4 different RGB output modes through the RGB connector.
If you take a look at patch 7, you'll see that I chose mode 3 (which is RGB888), and given this mode the HLCDC driver (atmel_hlcdc_panel.c) will request the appropriate pin state:
atmel,panel = <&panel 3 0>;
Best Regards,
Boris