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arm64: dts: rockchip: Enable the GPU on quartzpro64

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Following the approach used to enable the Mali GPU on the rk3588-evb1, [1]
do the same for the Pine64 QuartzPro64, which uses nearly identical hardware
design as the RK3588 EVB1.

The slight disadvantage is that the regulator coupling logic requires the
regulators to be always on, which is also noted in the comments.  This is
obviously something to be improved at some point in the future, but should
be fine for now, especially because the QuartzPro64 isn't a battery-powered
board, so low power consumption isn't paramount.

[1] https://lore.kernel.org/linux-rockchip/20240325153850.189128-5-sebastian.reichel@collabora.com/

Signed-off-by: Dragan Simic <dsimic@manjaro.org>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/0f3759ee390f245dac447bbee038445ddfecbec0.1711383286.git.dsimic@manjaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Dragan Simic 2024-03-25 17:19:04 +01:00 committed by Heiko Stuebner
parent 75a287219a
commit 3a9172fe55
1 changed files with 14 additions and 0 deletions
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14
arch/arm64/boot/dts/rockchip/rk3588-quartzpro64.dts
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@ -285,6 +285,12 @@
status = "okay";
};
&gpu {
mali-supply = <&vdd_gpu_s0>;
sram-supply = <&vdd_gpu_mem_s0>;
status = "okay";
};
&i2c2 {
status = "okay";
@ -491,11 +497,15 @@
regulators {
vdd_gpu_s0: dcdc-reg1 {
regulator-name = "vdd_gpu_s0";
/* regulator coupling requires always-on */
regulator-always-on;
regulator-boot-on;
regulator-enable-ramp-delay = <400>;
regulator-min-microvolt = <550000>;
regulator-max-microvolt = <950000>;
regulator-ramp-delay = <12500>;
regulator-coupled-with = <&vdd_gpu_mem_s0>;
regulator-coupled-max-spread = <10000>;
regulator-state-mem {
regulator-off-in-suspend;
@ -545,11 +555,15 @@
vdd_gpu_mem_s0: dcdc-reg5 {
regulator-name = "vdd_gpu_mem_s0";
/* regulator coupling requires always-on */
regulator-always-on;
regulator-boot-on;
regulator-enable-ramp-delay = <400>;
regulator-min-microvolt = <675000>;
regulator-max-microvolt = <950000>;
regulator-ramp-delay = <12500>;
regulator-coupled-with = <&vdd_gpu_s0>;
regulator-coupled-max-spread = <10000>;
regulator-state-mem {
regulator-off-in-suspend;