[PATCH v5 15/21] dt-bindings: gpu: Add support for T-HEAD TH1520 GPU

Michal Wilczynski
2025-02-19T14:03:12Z

Add bindings for the PowerVR BXM-4-64 GPU integrated in the T-HEAD
TH1520 SoC.

Add a dt-bindings example showing the proper usage of the compatible
string "thead,th1520-gpu" along with "img,img-bxm".

Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
---
.../bindings/gpu/img,powervr-rogue.yaml | 39 +++++++++++++++++--
1 file changed, 35 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
index bb607d4b1e07..2005dcefcaf9 100644
--- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
+++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
@@ -12,10 +12,15 @@ maintainers:

properties:
compatible:
- items:
- - enum:
- - ti,am62-gpu
- - const: img,img-axe # IMG AXE GPU model/revision is fully discoverable
+ oneOf:
+ - items:
+ - enum:
+ - ti,am62-gpu
+ - const: img,img-axe # IMG AXE GPU model/revision is fully discoverable
+ - items:
+ - enum:
+ - thead,th1520-gpu
+ - const: img,img-bxm

reg:
maxItems: 1
@@ -60,6 +65,16 @@ allOf:
clocks:
maxItems: 1

+ - if:
+ properties:
+ compatible:
+ contains:
+ const: thead,th1520-gpu
+ then:
+ properties:
+ clocks:
+ minItems: 3
+
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
@@ -74,3 +89,19 @@ examples:
interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
power-domains = <&k3_pds 187 TI_SCI_PD_EXCLUSIVE>;
};
+
+ #include <dt-bindings/clock/thead,th1520-clk-ap.h>
+ #include <dt-bindings/power/thead,th1520-power.h>
+ #include <dt-bindings/reset/thead,th1520-reset.h>
+
+ gpu: gpu@fff0000 {
+ compatible = "thead,th1520-gpu", "img,img-bxm";
+ reg = <0xfff0000 0x1000>;
+ interrupt-parent = <&plic>;
+ interrupts = <102 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk CLK_GPU_CORE>, <&clk CLK_GPU_MEM>,
+ <&clk CLK_GPU_CFG_ACLK>;
+ clock-names = "core", "mem", "sys";
+ power-domains = <&pd TH1520_GPU_PD>;
+ resets = <&rst TH1520_RESET_ID_GPU>;
+ };
--
2.34.1