arm64: dts: mediatek: mt8192: Add Smart Voltage Scaling node

Add the MediaTek SVS node: this will lower the voltage of various
components of the SoC based on chip quality (read from fuses) in
order to save power and generate less heat.

Link: https://lore.kernel.org/r/20231121125044.78642-20-angelogioacchino.delregno@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
index 238f6eb258323678c2b855a7883a76664dde4dcb..6dd32dbfb832e7d8cdbb7c8a1c8098c6834329de 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
@@ -809,6 +809,18 @@
                        #thermal-sensor-cells = <1>;
                };
 
+               svs: svs@1100bc00 {
+                       compatible = "mediatek,mt8192-svs";
+                       reg = <0 0x1100bc00 0 0x400>;
+                       interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH 0>;
+                       clocks = <&infracfg CLK_INFRA_THERM>;
+                       clock-names = "main";
+                       nvmem-cells = <&svs_calibration>, <&lvts_e_data1>;
+                       nvmem-cell-names = "svs-calibration-data", "t-calibration-data";
+                       resets = <&infracfg MT8192_INFRA_RST3_THERM_CTRL_PTP_SWRST>;
+                       reset-names = "svs_rst";
+               };
+
                pwm0: pwm@1100e000 {
                        compatible = "mediatek,mt8183-disp-pwm";
                        reg = <0 0x1100e000 0 0x1000>;