Add a basic GPU node for mt8183.
Signed-off-by: Nicolas Boichat
Reviewed-by: Alyssa Rosenzweig
---
Upstreaming what matches existing bindings from our Chromium OS tree:
https://chromium.googlesource.com/chromiumos/third_party/kernel/+/chromeos-4.19/arch/arm64/boot/dts/mediatek/mt8183.dtsi#1411
The evb part of this change depends on this patch to add PMIC dtsi:
https://patchwork.kernel.org/patch/10928161/
The binding we use with out-of-tree Mali drivers includes more
clocks, this is used for devfreq: the out-of-tree driver switches
clk_mux to clk_sub_parent (26Mhz), adjusts clk_main_parent, then
switches clk_mux back to clk_main_parent:
(see
https://chromium.googlesource.com/chromiumos/third_party/kernel/+/chromeos-4.19/drivers/gpu/arm/midgard/platform/mediatek/mali_kbase_runtime_pm.c#423)
clocks =
<&topckgen CLK_TOP_MFGPLL_CK>,
<&topckgen CLK_TOP_MUX_MFG>,
<&clk26m>,
<&mfgcfg CLK_MFG_BG3D>;
clock-names =
"clk_main_parent",
"clk_mux",
"clk_sub_parent",
"subsys_mfg_cg";
(based on discussions, this probably belongs in the clock core)
v5:
- Rename "2d" power domain to "core2" (keep R-B again).
v4:
- Add power-domain-names to describe the 3 domains.
(kept Alyssa's reviewed-by as the change is minor)
v3:
- No changes
v2:
- Use sram instead of mali_sram as SRAM supply name.
- Rename mali@ to gpu@.
arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 7 ++
arch/arm64/boot/dts/mediatek/mt8183.dtsi| 105
2 files changed, 112 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
index 1fb195c683c3d01..7d609e0cd9b4975 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
@@ -7,6 +7,7 @@
/dts-v1/;
#include "mt8183.dtsi"
+#include "mt6358.dtsi"
/ {
model = "MediaTek MT8183 evaluation board";
@@ -30,6 +31,12 @@ &auxadc {
status = "okay";
};
+&gpu {
+ supply-names = "mali", "sram";
+ mali-supply = <&mt6358_vgpu_reg>;
+ sram-supply = <&mt6358_vsram_gpu_reg>;
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c_pins_0>;
diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 97863adb7bc02b4..fc690c54988c8cc 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -652,6 +652,111 @@ mfgcfg: syscon@1300 {
#clock-cells = <1>;
};
+ gpu: gpu@1304 {
+ compatible = "mediatek,mt8183-mali", "arm,mali-bifrost";
+ reg = <0 0x1304 0 0x4000>;
+ interrupts =
+ ,
+ ,
+ ;
+ interrupt-names = "job", "mmu", "gpu";
+
+ clocks = <&topckgen CLK_TOP_MFGPLL_CK>;
+
+ power-domains =
+ <&scpsys MT8183_POWER_DOMAIN_MFG_CORE0>,
+ <&scpsys MT8183_POWER_DOMAIN_MFG_CORE1>,
+ <&scpsys MT8183_POWER_DOMAIN_MFG_2D>;
+ power-domain-names = "core0", "core1", "core2";
+
+ operating-points-v2 = <&gpu_opp_table>;
+ };
+
+ gpu_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-3 {
+ opp-hz = /bits/ 64 <3>;
+ opp-microvolt = <625000>, <85>;
+ };
+
+ opp-32000 {
+ opp-hz = /bits/ 64 <32000>;
+ opp-microvolt = <631250>, <85>;
+ };
+
+ opp-34000 {
+ opp-hz = /bits/ 64 <34000>;
+ opp-microvolt = <637500>, <85>;
+ };
+
+ opp-36000 {
+ opp-hz = /bits/ 64 <36000>;
+ opp-microvolt = <643750>, <85>;
+ };
+
+ opp-38000 {
+ opp-hz = /bits/ 64 <38000>;
+ opp-microvolt = <65>, <85>;
+ };
+
+ opp-4 {
+ opp-hz = /bits/ 64 <4>;
+ opp-microvolt = <656250>, <85>;
+ };
+
+ opp-42000 {
+ opp-hz = /bits/ 64 <42000>;
+ opp-microvolt = <662500>, <85>;
+ };
+
+
