[PATCH 14/17] ARM: dts: Add missing gpu node and binding for omap4

Tony Lindgren
2017-08-30T15:19:50Z

On omap4 we're missing the PowerVR SGX GPU node with it's related
"ti,hwmods" property that the SoC interconnect code needs.

Note that this will only show up as a bug with "doesn't have
mpu register target base" boot errors when the legacy platform
data is removed.

Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Tomi Valkeinen <tomi.valkeinen-l0cyMroinI0@public.gmane.org>
Signed-off-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
---
.../devicetree/bindings/gpu/ti-powervr-sgx.txt | 39 ++++++++++++++++++++++
arch/arm/boot/dts/omap4.dtsi | 7 ++++
2 files changed, 46 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpu/ti-powervr-sgx.txt

diff --git a/Documentation/devicetree/bindings/gpu/ti-powervr-sgx.txt b/Documentation/devicetree/bindings/gpu/ti-powervr-sgx.txt
new file mode 100644
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpu/ti-powervr-sgx.txt
@@ -0,0 +1,39 @@
+Texas Instruments PowevVR SGX binding
+
+SGX can be used for graphics acceleration on Texas Instruments SoCs.
+
+Note that the SGX binding is currently only used by the SoC interconnect
+code to idle the module on init and no open source driver is available
+for SGX. The PowerVR model specific driver nodes should be child nodes
+of this instance, and a clock binding may need to be added.
+
+Required properties:
+
+compatible: Shall be one of the following:
+ "ti,omap3-sgx530"
+ "ti,am335-sgx530"
+ "ti,omap4-sgx540"
+ "ti,omap5-sgx544"
+ "ti,dra7-sgx544"
+
+reg: Shall contain the device instance IO range
+
+interrupts: Shall contain the device instance interrupt
+
+
+Optional properties:
+
+reg-names: Shall contain the IO range names if multiple IO
+ ranges are used by the SoC
+
+ti,hwmods: Shall contain the TI interconnect module name if needed
+ by the SoC
+
+
+Example:
+ gpu: gpu@56000000 {
+ compatible = "ti,omap4-sgx540";
+ reg = <0x56000000 0x10000>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+ ti,hwmods = "gpu";
+ };
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -1111,6 +1111,13 @@
status = "disabled";
};

+ gpu: gpu@56000000 {
+ compatible = "ti,omap4-sgx540";
+ reg = <0x56000000 0x10000>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+ ti,hwmods = "gpu";
+ };
+
dss: dss@58000000 {
compatible = "ti,omap4-dss";
reg = <0x58000000 0x80>;