On 08/31/2016 08:30 PM, Andrzej Hajda wrote:
Hi,
On 08/30/2016 12:50 AM, Randy Li wrote:
It is actually a lvds panel connected through a rga-lvds bridge. But I really have no idea about what does a port mean in fimd node.
Also how should I configure this panel size? I think the i2c found on the panel schematic, but it more likely to be used a touch screen touth. Also the touch screen is not supported in currently driver.
Signed-off-by: Randy Li ayaka@soulik.info
arch/arm/boot/dts/exynos4412-itop-elite.dts | 35 ++++++++++++++++++++++++++--- 1 file changed, 32 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/exynos4412-itop-elite.dts b/arch/arm/boot/dts/exynos4412-itop-elite.dts index e1cda54..2d67385 100644 --- a/arch/arm/boot/dts/exynos4412-itop-elite.dts +++ b/arch/arm/boot/dts/exynos4412-itop-elite.dts @@ -139,6 +139,20 @@ assigned-clocks = <&clock CLK_MOUT_CAM0>; assigned-clock-parents = <&clock CLK_XUSBXTI>; };
- vcc_sys_lcd: sys-lcd {
compatible = "regulator-fixed";regulator-name = "vcc_5v";regulator-min-microvolt = <5000000>;regulator-max-microvolt = <5000000>;gpio = <&gpl0 4 GPIO_ACTIVE_HIGH>;- };
- panel: panel {
ddc-i2c-bus = <&i2c_3>;power-supply = <&vcc_sys_lcd>;enable-gpios = <&gpl0 2 GPIO_ACTIVE_HIGH>;- };
Panel has no compatible string, which driver will handle this node?
The problem is that, it is panel not supported by kernel. Is it possible to support without adding a new driver for it ? I know there is a simple-dpi for MIPI, but what is for parallel video or lvds?
Regards Andrzej
The other problem is that I don't how to configure the display-times, the datasheet for CLAA070WP03XG should talk about total time, active time and blank time for both Horizontal an Vertical time. Does it mean the front-porch and sync-len for horizontal and vertical are zero ?
+ ports { + #address-cells = <1>; + #size-cells = <0>; + port@3 { + reg = <3>; + rga_lvds: endpoint { + remote-endpoint = <&panel>; + }; + }; + }; + + panel: panel@0 { + compatible = "panel-simple"; + + power-supply = <&vcc_sys_lcd>; + enable-gpios = <&gpl0 2 GPIO_ACTIVE_HIGH>; + display-timings { + timing-0 { + clock-frequency = <66770000>; + hactive = <800>; + vactive = <1280>; + hfront-porch = <0>; + hback-porch = <64>; + hsync-len = <0>; + vfront-porch = <0>; + vback-porch = <8>; + vsync-len = <0>; + };