? 2017/9/20 9:51, Sandy Huang ??:
> Hi rob,
> ??? thanks for you review.
>
> ? 2017/9/19 22:46, Rob Herring ??:
>> On Thu, Sep 14, 2017 at 11:43:18AM +0800, Sandy Huang wrote:
>>> This path add support rv1108 rgb output interface driver.
>>>
>>> Signed-off-by: Sandy Huang <hjc at rock-chips.com>
>>> ---
>>> ? .../bindings/display/rockchip/rockchip-rgb.txt???? | 80
>>> ++++++++++++++++++++++
>>> ? 1 file changed, 80 insertions(+)
>>> ? create mode 100644
>>> Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
>>> b/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
>>> new file mode 100644
>>> index 0000000..4164512
>>> --- /dev/null
>>> +++
>>> b/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
>>> @@ -0,0 +1,80 @@
>>> +Rockchip RV1108 RGB interface
>>> +================================
>>> +
>>> +Required properties:
>>> +- compatible: matching the soc type:
>>> +??? - "rockchip,rv1108-rgb";
>>> +
>>> +Optional properties:
>>> +- pinctrl-names: must contain a "lcdc" entry.
>>> +- pinctrl-0: pin control group to be used for this interface.
>>> +
>>> +Required nodes:
>>> +- rockchip,rgb-mode: should be "p888", "p666", "p565", "s888",
>>> "s888-dummy"
>>
>> This should be a standard property. Any device with a parallel interface
>> is going to need something like this.
>>
> so, i need to move this property to panel? or just rename
> rockchip,rgb-mode to rgb-mode?
>
>>> +??? - p888: output r8-g8-b8 at each dclk cycle for per-pixel
>>> +??? - p666: output r6-g6-b6 at each dclk cycle for per-pixel
>>> +??? - p565: output r5-g6-b5 at each dclk cycle for per-pixel
>>> +??? - s888: output r8-g8-b8 in three dclk cycle for per-pixel
>>> +??? - s888-dmmy: output r8-g8-b8-dummy in four dclk cycle for per-pixel
>>> +
>>> +The rgb has two video ports described by:
>>> +??? Documentation/devicetree/bindings/media/video-interfaces.txt
>>> +Their connections are modeled using the OF graph bindings specified in
>>> +??? Documentation/devicetree/bindings/graph.txt.
>>> +
>>> +- video port 0 for the VOP input, the remote endpoint maybe
>>> vopb/vopl/vop
>>> +- video port 1 for either a panel or subsequent encoder
>>> +
>>> +the panel described by:
>>> +??? Documentation/devicetree/bindings/display/panel/simple-panel.txt
>>> +Panel other required properties:
>>> +- ports for remote rgb output.
>>> +
>>> +Example:
>>> +
>>> +panel: panel {
>>> +??? compatible = "auo,b101ean01";
>>> +??? enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
>>> +
>>> +??? ports {
>>> +??????? panel_in_rgb: endpoint {
>>> +??????????? remote-endpoint = <&rgb_out_panel>;
>>> +??????? };
>>> +??? };
>>> +};
>>> +
>>> +For Rockchip RV1108:
>>> +
>>> +??? rgb: rgb {
>>> +??????? compatible = "rockchip,rv1108-rgb";
>>> +??????? pinctrl-names = "lcdc";
>>> +??????? pinctrl-0 = <&lcdc_ctl>;
>>> +??????? rockchip,rgb-mode = "p888";
>>> +
>>> +??????? ports {
>>> +??????????? #address-cells = <1>;
>>> +??????????? #size-cells = <0>;
>>> +
>>> +??????????? rgb_in: port at 0 {
>>> +??????????????? reg = <0>;
>>> +??????????????? #address-cells = <1>;
>>> +??????????????? #size-cells = <0>;
>>> +
>>> +??????????????? rgb_in_vop: endpoint at 0 {
>>> +??????????????????? reg = <0>;
>>
>> Don't need reg for a single endpoint.
>>
> ok, this will be deleted at next version.
>>> +??????????????????? remote-endpoint = <&vop_out_rgb>;
>>> +??????????????? };
>>> +??????????? };
>>> +
>>> +??????????? rgb_out: port at 1 {
>>> +??????????????? reg = <1>;
>>> +??????????????? #address-cells = <1>;
>>> +??????????????? #size-cells = <0>;
>>> +
>>> +??????????????? rgb_out_panel: endpoint at 0 {
>>> +??????????????????? reg = <0>;
>>
>> ditto.
>>
> ok, this will be deleted at next version.
sorry,this can't be deleted, because rgb output remote endpoint maybe
panel or convert chip, the dts node maybe like this:
panel: panel {
status = "disabled";
ports {
panel_in_rgb: endpoint {
remote-endpoint = <&rgb_out_panel>;
};
};
};
bridge: bridge {
status = "okay";
ports {
bridge_in_rgb: endpoint {
remote-endpoint = <&rgb_out_bridge>;
};
};
};
rgb_out: port at 1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
rgb_out_panel: endpoint at 0 {
reg = <0>;
remote-endpoint = <&panel_in_rgb>;
};
rgb_out_bridge: endpoint at 1 {
reg = <1>;
remote-endpoint = <&bridge_in_rgb>;
};
};
so rockchip_rgb_bind() @ rockchip_rgb.c use reg id to find the remote
actived endpoint.
for_each_child_of_node(port, endpoint) {
of_property_read_u32(endpoint, "reg", &endpoint_id);
ret = drm_of_find_panel_or_bridge(dev->of_node, 1, endpoint_id,
&rgb->panel, &rgb->bridge);
if (!ret)
break;
}
>>> +??????????????????? remote-endpoint = <&panel_in_rgb>;
>>> +??????????????? };
>>> +??????????? };
>>> +??????? };
>>> +??? };
>>> --
>>> 2.7.4
>>>
>>>
>>
>>
>>
>
>
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