[v2,7/7] ARM: bcm2835: Add VC4 to the device tree.
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Message ID 1439934848-7196-8-git-send-email-eric@anholt.net
State New
Headers show

Commit Message

Eric Anholt Aug. 18, 2015, 9:54 p.m. UTC
VC4 is the GPU (display and 3D) present on the 2835.

Signed-off-by: Eric Anholt <eric@anholt.net>
---

v2: Sort by register address, mark HDMI as disabled by default in the
    SoC file and enable it from -rpi.

 arch/arm/boot/dts/bcm2835-rpi.dtsi |  4 ++++
 arch/arm/boot/dts/bcm2835.dtsi     | 44 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)

Comments

Stephen Warren Aug. 26, 2015, 2:04 a.m. UTC | #1
On 08/18/2015 03:54 PM, Eric Anholt wrote:
> VC4 is the GPU (display and 3D) present on the 2835.

This patch and patch 1 seem OK to me, although I'll withhold any ack
until the DT binding design discussion with Rob has been resolved. I
haven't looked at the OF graph bindings he mentioned so have no clue
about his suggestions.

Patch
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diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 29cc7ba..f7217906 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -49,6 +49,10 @@ 
 	status = "okay";
 };
 
+&hdmi {
+	status = "okay";
+};
+
 &sdhci {
 	status = "okay";
 	bus-width = <4>;
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 20574cc..e625a21 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -1,4 +1,5 @@ 
 #include <dt-bindings/pinctrl/bcm2835.h>
+#include <dt-bindings/gpio/gpio.h>
 #include "skeleton.dtsi"
 
 / {
@@ -131,6 +132,18 @@ 
 			status = "disabled";
 		};
 
+		pv0: brcm,vc4-pixelvalve@7e206000 {
+			compatible = "brcm,vc4-pixelvalve";
+			reg = <0x7e206000 0x100>;
+			interrupts = <2 13>; /* pwa2 */
+		};
+
+		pv1: brcm,vc4-pixelvalve@7e207000 {
+			compatible = "brcm,vc4-pixelvalve";
+			reg = <0x7e207000 0x100>;
+			interrupts = <2 14>; /* pwa1 */
+		};
+
 		sdhci: sdhci@7e300000 {
 			compatible = "brcm,bcm2835-sdhci";
 			reg = <0x7e300000 0x100>;
@@ -139,6 +152,12 @@ 
 			status = "disabled";
 		};
 
+		hvs: brcm,hvs@7e400000 {
+			compatible = "brcm,vc4-hvs";
+			reg = <0x7e400000 0x6000>;
+			interrupts = <2 1>;
+		};
+
 		i2c1: i2c@7e804000 {
 			compatible = "brcm,bcm2835-i2c";
 			reg = <0x7e804000 0x1000>;
@@ -159,6 +178,23 @@ 
 			status = "disabled";
 		};
 
+		pv2: brcm,vc4-pixelvalve@7e807000 {
+			compatible = "brcm,vc4-pixelvalve";
+			reg = <0x7e807000 0x100>;
+			interrupts = <2 10>; /* pixelvalve */
+		};
+
+		hdmi: brcm,vc4-hdmi@7e902000 {
+			compatible = "brcm,vc4-hdmi";
+			reg = <0x7e902000 0x600>,
+			      <0x7e808000 0x100>;
+			interrupts = <2 8>, <2 9>;
+			ddc = <&i2c2>;
+			hpd-gpio = <&gpio 46 GPIO_ACTIVE_HIGH>;
+			crtc = <&pv2>;
+			status = "disabled";
+		};
+
 		usb@7e980000 {
 			compatible = "brcm,bcm2835-usb";
 			reg = <0x7e980000 0x10000>;
@@ -168,6 +204,14 @@ 
 		arm-pmu {
 			compatible = "arm,arm1176-pmu";
 		};
+
+		vc4: vc4@0x7e4c0000 {
+			compatible = "brcm,vc4";
+
+			crtcs = <&pv0>, <&pv1>, <&pv2>;
+			encoders = <&hdmi>;
+			hvss = <&hvs>;
+		};
 	};
 
 	clocks {