OpenWrt – Rev 4
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From fc25cd03ca1c696dacb74d2006c0f176ce800566 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Tue, 13 Dec 2016 15:15:10 -0800
Subject: [PATCH] ARM: bcm2835: dt: Add the DSI module nodes and clocks.
The modules stay disabled by default, and if you want to enable DSI
you'll need an overlay that connects a panel to it.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
arch/arm/boot/dts/bcm2835-rpi.dtsi | 8 +++++++
arch/arm/boot/dts/bcm283x.dtsi | 49 +++++++++++++++++++++++++++++++++++---
2 files changed, 54 insertions(+), 3 deletions(-)
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -92,3 +92,11 @@
power-domains = <&power RPI_POWER_DOMAIN_VEC>;
status = "okay";
};
+
+&dsi0 {
+ power-domains = <&power RPI_POWER_DOMAIN_DSI0>;
+};
+
+&dsi1 {
+ power-domains = <&power RPI_POWER_DOMAIN_DSI1>;
+};
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -93,10 +93,13 @@
#clock-cells = <1>;
reg = <0x7e101000 0x2000>;
- /* CPRMAN derives everything from the platform's
- * oscillator.
+ /* CPRMAN derives almost everything from the
+ * platform's oscillator. However, the DSI
+ * pixel clocks come from the DSI analog PHY.
*/
- clocks = <&clk_osc>;
+ clocks = <&clk_osc>,
+ <&dsi0 0>, <&dsi0 1>, <&dsi0 2>,
+ <&dsi1 0>, <&dsi1 1>, <&dsi1 2>;
};
rng@7e104000 {
@@ -398,6 +401,26 @@
status = "disabled";
};
+ dsi0: dsi@7e209000 {
+ compatible = "brcm,bcm2835-dsi0";
+ reg = <0x7e209000 0x78>;
+ interrupts = <2 4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #clock-cells = <1>;
+
+ clocks = <&clocks BCM2835_PLLA_DSI0>,
+ <&clocks BCM2835_CLOCK_DSI0E>,
+ <&clocks BCM2835_CLOCK_DSI0P>;
+ clock-names = "phy", "escape", "pixel";
+
+ clock-output-names = "dsi0_byte",
+ "dsi0_ddr2",
+ "dsi0_ddr";
+
+ status = "disabled";
+ };
+
aux: aux@0x7e215000 {
compatible = "brcm,bcm2835-aux";
#clock-cells = <1>;
@@ -457,6 +480,26 @@
interrupts = <2 1>;
};
+ dsi1: dsi@7e700000 {
+ compatible = "brcm,bcm2835-dsi1";
+ reg = <0x7e700000 0x8c>;
+ interrupts = <2 12>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #clock-cells = <1>;
+
+ clocks = <&clocks BCM2835_PLLD_DSI1>,
+ <&clocks BCM2835_CLOCK_DSI1E>,
+ <&clocks BCM2835_CLOCK_DSI1P>;
+ clock-names = "phy", "escape", "pixel";
+
+ clock-output-names = "dsi1_byte",
+ "dsi1_ddr2",
+ "dsi1_ddr";
+
+ status = "disabled";
+ };
+
i2c1: i2c@7e804000 {
compatible = "brcm,bcm2835-i2c";
reg = <0x7e804000 0x1000>;