Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/display/simple-framebuffer-sunxi.txt b/Documentation/devicetree/bindings/display/simple-framebuffer-sunxi.txt
new file mode 100644
index 000000000..d693b8dc9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/simple-framebuffer-sunxi.txt
@@ -0,0 +1,36 @@
+Sunxi specific Simple Framebuffer bindings
+
+This binding documents sunxi specific extensions to the simple-framebuffer
+bindings. The sunxi simplefb u-boot code relies on the devicetree containing
+pre-populated simplefb nodes.
+
+These extensions are intended so that u-boot can select the right node based
+on which pipeline is being used. As such they are solely intended for
+firmware / bootloader use, and the OS should ignore them.
+
+Required properties:
+- compatible: "allwinner,simple-framebuffer"
+- allwinner,pipeline, one of:
+  "de_be0-lcd0"
+  "de_be1-lcd1"
+  "de_be0-lcd0-hdmi"
+  "de_be1-lcd1-hdmi"
+  "mixer0-lcd0"
+  "mixer0-lcd0-hdmi"
+  "mixer1-lcd1-hdmi"
+  "mixer1-lcd1-tve"
+
+Example:
+
+chosen {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	ranges;
+
+	framebuffer@0 {
+		compatible = "allwinner,simple-framebuffer", "simple-framebuffer";
+		allwinner,pipeline = "de_be0-lcd0-hdmi";
+		clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
+			 <&ahb_gates 44>;
+	};
+};