在 2017年07月12日 15:19, Heiko Stuebner 写道:
Hi Caesar,
Am Mittwoch, 12. Juli 2017, 14:29:28 CEST schrieb Caesar Wang:
Add Mali GPU device tree node for the RK3399 SoCs, with devfreq
opp table.
RK3399 and RK3399-OP1 SoCs have a different recommendation table with
gpu opp. As the ARM's mali driver found on
https://developer.arm.com/products/software/mali-drivers/midgard-kernel.
Signed-off-by: Caesar Wang <wxt@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3399-op1-opp.dtsi | 33 ++++++++++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi | 33 ++++++++++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3399.dtsi | 16 ++++++++++++
3 files changed, 82 insertions(+)
[...]
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 1cbd7a2..8c6438b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1443,6 +1443,22 @@
status = "disabled";
};
+ gpu: gpu@ff9a0000 {
+ compatible = "arm,rk3399-mali",
+ "arm,malit860",
+ "arm,malit86x",
+ "arm,malit8xx";
no wildcards and correct compatibles please.
The binding specifies arm,mali-t860 for your chip and the soc
specific compatible needs a rockchip vendor, so you need
compatible = "rockchip,rk3399-mali", "arm,mali-t860";
Okay, sound resonable.
+ reg = <0x0 0xff9a0000 0x0 0x10000>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH 0>,
+ <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH 0>,
+ <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "GPU", "JOB", "MMU";
interrupt names are job, mmu, gpu in lower case. The out-of-tree driver
will need to conform to that.
Okay, we need update the ARM's mali driver to follow up.
+ clocks = <&cru ACLK_GPU>;
+ clock-names = "clk_mali";
no clock-names property, as midgard malis only have one clock input
Sorry, I seem to be reference for the MAILI's document, not the Linux
document.
Update these for patches v2.
Thanks your comments.
-Caesar
Heiko
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