[PATCH 0/3] drm/rockchip: lvds: add support Rockchip Soc LVDS

[PATCH 0/3] drm/rockchip: lvds: add support Rockchip Soc LVDS

[Sandy Huang]

This patches add support Rockchip RK3288 LVDS support, based on patches from
Mark yao[0] and Heiko Stuebner[1].

[0]: https://github.com/RockchipOpensourceCommunity/popmetal-kernel-3.14
[1]: http://lists.infradead.org/pipermail/linux-rockchip/2015-April/002830.html

Changes:
- Update rockchip_lvds_encoder_helper_funcs to atomic API
- Add bridge function for RGB/LVDS convert to other output type
- Fix some unreasonable define
- Adapter to the latest rockchip DRM driver framework
- Add pinctrl for RGB output type
- Reseved some define for rockchip next Soc

Sandy Huang (3):
  dt-bindings: display: Add Document for Rockchip Soc LVDS
  ARM: dts: Add LVDS info for rk3288
  drm/rockchip: Add support for Rockchip Soc LVDS

 .../bindings/display/rockchip/rockchip-lvds.txt    | 104 +++
 arch/arm/boot/dts/rk3288.dtsi                      |  52 ++
 drivers/gpu/drm/rockchip/Kconfig                   |   9 +
 drivers/gpu/drm/rockchip/Makefile                  |   1 +
 drivers/gpu/drm/rockchip/rockchip_lvds.c           | 734 +++++++++++++++++++++
 drivers/gpu/drm/rockchip/rockchip_lvds.h           | 112 ++++
 6 files changed, 1012 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
 create mode 100644 drivers/gpu/drm/rockchip/rockchip_lvds.c
 create mode 100644 drivers/gpu/drm/rockchip/rockchip_lvds.h

-- 
2.7.4


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[PATCH 1/3] dt-bindings: display: Add Document for Rockchip Soc LVDS

[Sandy Huang]

This patch add Document for Rockchip Soc RK3288 LVDS,
This based on the patches from Mark yao and Heiko Stuebner.

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Signed-off-by: Mark yao <mark.yao@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 .../bindings/display/rockchip/rockchip-lvds.txt    | 104 +++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
new file mode 100644
index 0000000..bf934ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
@@ -0,0 +1,104 @@
+Rockchip RK3288 LVDS interface
+================================
+
+Required properties:
+- compatible: matching the soc type, one of
+	- "rockchip,rk3288-lvds";
+
+- reg: physical base address of the controller and length
+	of memory mapped region.
+- clocks: must include clock specifiers corresponding to entries in the
+	clock-names property.
+- clock-names: must contain "pclk_lvds"
+
+- avdd1v0-supply: regulator phandle for 1.0V analog power
+- avdd1v8-supply: regulator phandle for 1.8V analog power
+- avdd3v3-supply: regulator phandle for 3.3V analog power
+
+- rockchip,grf: phandle to the general register files syscon
+
+Optional properties
+- pinctrl-names: must contain a "lcdc" entry.
+- pinctrl-0: pin control group to be used for this controller.
+
+Required nodes:
+
+The lvds has two video ports as 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 inputs
+- video port 1 for either a panel or subsequent encoder
+
+the lvds panel described by
+	Documentation/devicetree/bindings/display/panel/simple-panel.txt
+
+- rockchip,data-mapping: should be "vesa" or "jeida",
+	This describes how the color bits are laid out in the
+	serialized LVDS signal.
+- rockchip,data-width : should be <18> or <24>;
+- rockchip,output: should be "rgb", "lvds" or "duallvds",
+	This describes the output face.
+- ports for remote LVDS output
+
+Example:
+
+lvds_panel: lvds-panel {
+	status = "okay";
+	compatible = "simple-panel";
+	enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
+	rockchip,data-mapping = "jeida";
+	rockchip,data-width = <24>;
+	rockchip,output = "rgb";
+
+	ports {
+		panel_in_lvds: endpoint {
+			remote-endpoint = <&lvds_out_panel>;
+		};
+	};
+};
+
+
+For Rockchip RK3288:
+
+	lvds: lvds@ff96c000 {
+		compatible = "rockchip,rk3288-lvds";
+		rockchip,grf = <&grf>;
+		reg = <0xff96c000 0x4000>;
+		clocks = <&cru PCLK_LVDS_PHY>;
+		clock-names = "pclk_lvds";
+		pinctrl-names = "lcdc";
+		pinctrl-0 = <&lcdc_ctl>;
+		avdd1v0-supply = <&vdd10_lcd>;
+		avdd1v8-supply = <&vcc18_lcd>;
+		avdd3v3-supply = <&vcca_33>;
+		rockchip,data-mapping = "jeida";
+		rockchip,data-width = <24>;
+		rockchip,output = "rgb";
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			lvds_in: port@0 {
+				reg = <0>;
+
+				lvds_in_vopb: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&vopb_out_lvds>;
+				};
+				lvds_in_vopl: endpoint@1 {
+					reg = <1>;
+					remote-endpoint = <&vopl_out_lvds>;
+				};
+			};
+
+			lvds_out: port@1 {
+				reg = <1>;
+
+				lvds_out_panel: endpoint {
+					remote-endpoint = <&panel_in>;
+				};
+			};
+		};
+	};
-- 
2.7.4

Re: [PATCH 1/3] dt-bindings: display: Add Document for Rockchip Soc LVDS

[Philipp Zabel]

On Wed, 2017-08-09 at 18:00 +0800, Sandy Huang wrote:
> This patch add Document for Rockchip Soc RK3288 LVDS,
> This based on the patches from Mark yao and Heiko Stuebner.
> 
> > Signed-off-by: Sandy Huang <hjc-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> > Signed-off-by: Mark yao <mark.yao-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> > Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
> ---
>  .../bindings/display/rockchip/rockchip-lvds.txt    | 104 +++++++++++++++++++++
>  1 file changed, 104 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
> new file mode 100644
> index 0000000..bf934ba
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
> @@ -0,0 +1,104 @@
> +Rockchip RK3288 LVDS interface
> +================================
> +
> +Required properties:
> +- compatible: matching the soc type, one of
> > +	- "rockchip,rk3288-lvds";
> +
> +- reg: physical base address of the controller and length
> > +	of memory mapped region.
> +- clocks: must include clock specifiers corresponding to entries in the
> > +	clock-names property.
> +- clock-names: must contain "pclk_lvds"
> +
> +- avdd1v0-supply: regulator phandle for 1.0V analog power
> +- avdd1v8-supply: regulator phandle for 1.8V analog power
> +- avdd3v3-supply: regulator phandle for 3.3V analog power
> +
> +- rockchip,grf: phandle to the general register files syscon
> +
> +Optional properties
> +- pinctrl-names: must contain a "lcdc" entry.
> +- pinctrl-0: pin control group to be used for this controller.
> +
> +Required nodes:
> +
> +The lvds has two video ports as 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 inputs
> +- video port 1 for either a panel or subsequent encoder
> +
> +the lvds panel described by
> > +	Documentation/devicetree/bindings/display/panel/simple-panel.txt
> +
> +- rockchip,data-mapping: should be "vesa" or "jeida",
> > +	This describes how the color bits are laid out in the
> > +	serialized LVDS signal.
> +- rockchip,data-width : should be <18> or <24>;

This can already be described by the panel itself, via the bus_format
property in the panel_desc for panel-simple, or via the existing panel
device tree property "data-mapping" in panel-lvds, which can be set to
"jeida-18", "jeida-24", or "vesa-24".

The LVDS driver can then read the panel bus information from the
panel's connector->display_info.bus_formats.

So if these properties are necessary at all, they at least should be
optional (overrides).

regards
Philipp
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Re: [PATCH 1/3] dt-bindings: display: Add Document for Rockchip Soc LVDS

[Sandy Huang]

在 2017/8/11 23:38, Philipp Zabel 写道:
> On Wed, 2017-08-09 at 18:00 +0800, Sandy Huang wrote:
>> This patch add Document for Rockchip Soc RK3288 LVDS,
>> This based on the patches from Mark yao and Heiko Stuebner.
>>
>>> Signed-off-by: Sandy Huang <hjc@rock-chips.com>
>>> Signed-off-by: Mark yao <mark.yao@rock-chips.com>
>>> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
>> ---
>>   .../bindings/display/rockchip/rockchip-lvds.txt    | 104 +++++++++++++++++++++
>>   1 file changed, 104 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
>>
>> diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
>> new file mode 100644
>> index 0000000..bf934ba
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
>> @@ -0,0 +1,104 @@
>> +Rockchip RK3288 LVDS interface
>> +================================
>> +
>> +Required properties:
>> +- compatible: matching the soc type, one of
>>> +	- "rockchip,rk3288-lvds";
>> +
>> +- reg: physical base address of the controller and length
>>> +	of memory mapped region.
>> +- clocks: must include clock specifiers corresponding to entries in the
>>> +	clock-names property.
>> +- clock-names: must contain "pclk_lvds"
>> +
>> +- avdd1v0-supply: regulator phandle for 1.0V analog power
>> +- avdd1v8-supply: regulator phandle for 1.8V analog power
>> +- avdd3v3-supply: regulator phandle for 3.3V analog power
>> +
>> +- rockchip,grf: phandle to the general register files syscon
>> +
>> +Optional properties
>> +- pinctrl-names: must contain a "lcdc" entry.
>> +- pinctrl-0: pin control group to be used for this controller.
>> +
>> +Required nodes:
>> +
>> +The lvds has two video ports as 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 inputs
>> +- video port 1 for either a panel or subsequent encoder
>> +
>> +the lvds panel described by
>>> +	Documentation/devicetree/bindings/display/panel/simple-panel.txt
>> +
>> +- rockchip,data-mapping: should be "vesa" or "jeida",
>>> +	This describes how the color bits are laid out in the
>>> +	serialized LVDS signal.
>> +- rockchip,data-width : should be <18> or <24>;
> 
> This can already be described by the panel itself, via the bus_format
> property in the panel_desc for panel-simple, or via the existing panel
> device tree property "data-mapping" in panel-lvds, which can be set to
> "jeida-18", "jeida-24", or "vesa-24".
> 
> The LVDS driver can then read the panel bus information from the
> panel's connector->display_info.bus_formats.
> 
Because the lvds maybe connected to panel or some cover chip just like 
rgb2cvbs etc. , in this case, we no need to enable panel, so we have to 
get this proterty at here.

> So if these properties are necessary at all, they at least should be
> optional (overrides).
>
ok, i will set data-mapping to option.
> regards
> Philipp
> 
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip
> 

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[PATCH 2/3] ARM: dts: Add LVDS info for rk3288

[Sandy Huang]

add LVDS info in rk3288.dtsi for LVDS driver
This based on the patches from Mark yao and Heiko Stuebner.

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Signed-off-by: Mark yao <mark.yao@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm/boot/dts/rk3288.dtsi | 52 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 2484f11..c2e33b8 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -983,6 +983,11 @@
 				reg = <2>;
 				remote-endpoint = <&mipi_in_vopb>;
 			};
+
+			vopb_out_lvds: endpoint@3 {
+				reg = <3>;
+				remote-endpoint = <&lvds_in_vopb>;
+			};
 		};
 	};
 
@@ -1026,6 +1031,11 @@
 				reg = <2>;
 				remote-endpoint = <&mipi_in_vopl>;
 			};
+
+			vopl_out_lvds: endpoint@3 {
+				reg = <3>;
+				remote-endpoint = <&lvds_in_vopl>;
+			};
 		};
 	};
 
@@ -1099,6 +1109,39 @@
 		};
 	};
 
+	lvds: lvds@ff96c000 {
+		compatible = "rockchip,rk3288-lvds";
+		reg = <0xff96c000 0x4000>;
+		clocks = <&cru PCLK_LVDS_PHY>;
+		clock-names = "pclk_lvds";
+		pinctrl-names = "lcdc";
+		pinctrl-0 = <&lcdc_ctl>;
+		power-domains = <&power RK3288_PD_VIO>;
+		rockchip,grf = <&grf>;
+		status = "disabled";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			lvds_in: port@0 {
+				reg = <0>;
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				lvds_in_vopb: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&vopb_out_lvds>;
+				};
+				lvds_in_vopl: endpoint@1 {
+					reg = <1>;
+					remote-endpoint = <&vopl_out_lvds>;
+				};
+			};
+		};
+	};
+
 	hdmi: hdmi@ff980000 {
 		compatible = "rockchip,rk3288-dw-hdmi";
 		reg = <0xff980000 0x20000>;
@@ -1823,5 +1866,14 @@
 				rockchip,pins = <RK_GPIO6 11 RK_FUNC_1 &pcfg_pull_none>;
 			};
 		};
+
+		lcdc {
+			lcdc_ctl: lcdc-ctl {
+				rockchip,pins = <1 24 RK_FUNC_1 &pcfg_pull_none>,
+						<1 25 RK_FUNC_1 &pcfg_pull_none>,
+						<1 26 RK_FUNC_1 &pcfg_pull_none>,
+						<1 27 RK_FUNC_1 &pcfg_pull_none>;
+			};
+		};
 	};
 };
-- 
2.7.4