[PATCH v2 1/7] ARM: dts: exynos: Add GPU/Mali 400 node to Exynos3250

* [PATCH v2 1/7] ARM: dts: exynos: Add GPU/Mali 400 node to Exynos3250
@ 2019-06-21 18:02 Krzysztof Kozlowski
  2019-06-21 18:02 ` [PATCH v2 2/7] ARM: dts: exynos: Add GPU/Mali 400 node to Exynos4 Krzysztof Kozlowski
                   ` (5 more replies)
  0 siblings, 6 replies; 14+ messages in thread
From: Krzysztof Kozlowski @ 2019-06-21 18:02 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Kukjin Kim, Krzysztof Kozlowski,
	Catalin Marinas, Will Deacon, Marek Szyprowski, Chanwoo Choi,
	Olof Johansson, Arnd Bergmann, devicetree, linux-arm-kernel,
	linux-samsung-soc, linux-kernel
  Cc: Joseph Kogut, Bartlomiej Zolnierkiewicz, Inki Dae

Add nodes for GPU (Mali 400) to Exynos3250.  This is still limited and
not tested:
1. No dynamic voltage and frequency scaling,
2. Not sure what to do with CLK_G3D clock responsible for gating entire
   IP block (it is now being disabled as unused).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v1:
1. Use samsung,exynos4210-mali compatible
2. Use CLK_G3D as bus clock (clock for entire IP block)
---
 arch/arm/boot/dts/exynos3250-artik5.dtsi |  5 ++++
 arch/arm/boot/dts/exynos3250-monk.dts    |  5 ++++
 arch/arm/boot/dts/exynos3250-rinato.dts  |  5 ++++
 arch/arm/boot/dts/exynos3250.dtsi        | 33 ++++++++++++++++++++++++
 4 files changed, 48 insertions(+)

diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi b/arch/arm/boot/dts/exynos3250-artik5.dtsi
index ace50e194a45..dee35e3a5c4b 100644
--- a/arch/arm/boot/dts/exynos3250-artik5.dtsi
+++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
@@ -59,6 +59,11 @@
 	cpu0-supply = <&buck2_reg>;
 };
 
+&gpu {
+	mali-supply = <&buck3_reg>;
+	status = "okay";
+};
+
 &i2c_0 {
 	#address-cells = <1>;
 	#size-cells = <0>;
diff --git a/arch/arm/boot/dts/exynos3250-monk.dts b/arch/arm/boot/dts/exynos3250-monk.dts
index e25765500e99..248bd372fe70 100644
--- a/arch/arm/boot/dts/exynos3250-monk.dts
+++ b/arch/arm/boot/dts/exynos3250-monk.dts
@@ -172,6 +172,11 @@
 	status = "okay";
 };
 
+&gpu {
+	mali-supply = <&buck3_reg>;
+	status = "okay";
+};
+
 &hsotg {
 	vusb_d-supply = <&ldo15_reg>;
 	vusb_a-supply = <&ldo12_reg>;
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index 7479993755da..86c26a4edfd7 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -244,6 +244,11 @@
 	};
 };
 
+&gpu {
+	mali-supply = <&buck3_reg>;
+	status = "okay";
+};
+
 &i2c_0 {
 	#address-cells = <1>;
 	#size-cells = <0>;
diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 8ce3a7786b19..c17870a54acf 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -126,6 +126,39 @@
 		};
 	};
 
+	gpu: gpu@13000000 {
+		compatible = "samsung,exynos4210-mali", "arm,mali-400";
+		reg = <0x13000000 0x10000>;
+		interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 182 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 179 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 185 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 181 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 177 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "gp",
+				  "gpmmu",
+				  "pp0",
+				  "ppmmu0",
+				  "pp1",
+				  "ppmmu1",
+				  "pp2",
+				  "ppmmu2",
+				  "pp3",
+				  "ppmmu3",
+				  "pmu";
+		clocks = <&cmu CLK_G3D>,
+			 <&cmu CLK_SCLK_G3D>;
+		clock-names = "bus", "core";
+		power-domains = <&pd_g3d>;
+		status = "disabled";
+		/* TODO: operating points for DVFS, assigned clock as 134 MHz */
+	};
+
 	pmu {
 		compatible = "arm,cortex-a7-pmu";
 		interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
-- 
2.17.1


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