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Message-Id: <20170920193831.20268-5-jernej.skrabec@siol.net>
Date: Wed, 20 Sep 2017 21:38:28 +0200
From: Jernej Skrabec <jernej.skrabec@...l.net>
To: maxime.ripard@...e-electrons.com, wens@...e.org
Cc: Laurent.pinchart@...asonboard.com, narmstrong@...libre.com,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-clk@...r.kernel.org, icenowy@...c.io,
linux-sunxi@...glegroups.com
Subject: [RFC PATCH 4/7] dt-bindings: Document Allwinner DWC HDMI TX node
Add documentation about Allwinner DWC HDMI TX node, found in H3 SoC.
Signed-off-by: Jernej Skrabec <jernej.skrabec@...l.net>
---
.../bindings/display/sunxi/sun4i-drm.txt | 158 ++++++++++++++++++++-
1 file changed, 157 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
index 92512953943e..cb6aee5c486f 100644
--- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
+++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
@@ -60,6 +60,40 @@ Required properties:
first port should be the input endpoint. The second should be the
output, usually to an HDMI connector.
+DWC HDMI TX Encoder
+-----------------------------
+
+The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
+with Allwinner's own PHY IP. It supports audio and video outputs and CEC.
+
+These DT bindings follow the Synopsys DWC HDMI TX bindings defined in
+Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt with the
+following device-specific properties.
+
+Required properties:
+
+ - compatible: value must be one of:
+ * "allwinner,sun8i-h3-dw-hdmi"
+ - reg: two pairs of base address and size of memory-mapped region, first
+ for controller and second for PHY
+ registers.
+ - reg-io-width: See dw_hdmi.txt. Shall be 1.
+ - interrupts: HDMI interrupt number
+ - clocks: phandles to the clocks feeding the HDMI encoder
+ * iahb: the HDMI interface clock
+ * isfr: the HDMI module clock
+ * ddc: the HDMI ddc clock
+ - clock-names: the clock names mentioned above
+ - resets: phandles to the reset controllers driving the encoder
+ * hdmi: the reset line for the HDMI
+ * ddc: the reset line for the DDC
+ - reset-names: the reset names mentioned above
+
+ - ports: A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt. The
+ first port should be the input endpoint. The second should be the
+ output, usually to an HDMI connector.
+
TV Encoder
----------
@@ -255,7 +289,7 @@ Required properties:
- allwinner,pipelines: list of phandle to the display engine
frontends (DE 1.0) or mixers (DE 2.0) available.
-Example:
+Example 1:
panel: panel {
compatible = "olimex,lcd-olinuxino-43-ts";
@@ -455,3 +489,125 @@ display-engine {
compatible = "allwinner,sun5i-a13-display-engine";
allwinner,pipelines = <&fe0>;
};
+
+Example 2:
+
+connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_con_in: endpoint {
+ remote-endpoint = <&hdmi_out_con>;
+ };
+ };
+};
+
+de: display-engine {
+ compatible = "allwinner,sun8i-h3-display-engine";
+ allwinner,pipelines = <&mixer0>;
+};
+
+hdmi: hdmi@...0000 {
+ compatible = "allwinner,h3-dw-hdmi";
+ reg = <0x01ee0000 0x10000>,
+ <0x01ef0000 0x10000>;
+ reg-io-width = <1>;
+ interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_HDMI>, <&ccu CLK_HDMI>,
+ <&ccu CLK_HDMI_DDC>;
+ clock-names = "iahb", "isfr", "ddc";
+ resets = <&ccu RST_BUS_HDMI0>, <&ccu RST_BUS_HDMI1>;
+ reset-names = "hdmi", "ddc";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi_in: port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ hdmi_in_tcon0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_out_hdmi>;
+ };
+ };
+
+ hdmi_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ hdmi_out_con: endpoint {
+ remote-endpoint = <&hdmi_con_in>;
+ };
+ };
+ };
+};
+
+mixer0: mixer@...0000 {
+ compatible = "allwinner,sun8i-h3-de2-mixer0";
+ reg = <0x01100000 0x100000>;
+ clocks = <&display_clocks CLK_BUS_MIXER0>,
+ <&display_clocks CLK_MIXER0>;
+ clock-names = "bus",
+ "mod";
+ resets = <&display_clocks RST_MIXER0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mixer0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ mixer0_out_tcon0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_in_mixer0>;
+ };
+ };
+ };
+};
+
+tcon0: lcd-controller@...c000 {
+ compatible = "allwinner,sun8i-h3-tcon";
+ reg = <0x01c0c000 0x1000>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_TCON0>,
+ <&ccu CLK_TCON0>;
+ clock-names = "ahb",
+ "tcon-ch1";
+ resets = <&ccu RST_BUS_TCON0>;
+ reset-names = "lcd";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tcon0_in: port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ tcon0_in_mixer0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&mixer0_out_tcon0>;
+ };
+ };
+
+ tcon0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ tcon0_out_hdmi: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&hdmi_in_tcon0>;
+ };
+ };
+ };
+};
--
2.14.1
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