arm64: dts: mediatek: mt8195: Add SVS node and reduce LVTS_AP iospace

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.
Also, reduce the LVTS_AP iospace to 0xc00, because that's exactly
where SVS starts.
 - LVTS_AP start: 0x1100b000 length: 0xc00
 - SVS start:     0x1100bc00 length: 0x400

Link: https://lore.kernel.org/r/20231121125044.78642-21-angelogioacchino.delregno@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
index 97f0c6d38f4a0ee4ef1b8b6700f90aed248f66a1..bbeaa4516c55ceb8f45549f5685efa558020a9db 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
@@ -1115,7 +1115,7 @@
 
                lvts_ap: thermal-sensor@1100b000 {
                        compatible = "mediatek,mt8195-lvts-ap";
-                       reg = <0 0x1100b000 0 0x1000>;
+                       reg = <0 0x1100b000 0 0xc00>;
                        interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH 0>;
                        clocks = <&infracfg_ao CLK_INFRA_AO_THERM>;
                        resets = <&infracfg_ao MT8195_INFRA_RST0_THERM_CTRL_SWRST>;
@@ -1124,6 +1124,18 @@
                        #thermal-sensor-cells = <1>;
                };
 
+               svs: svs@1100bc00 {
+                       compatible = "mediatek,mt8195-svs";
+                       reg = <0 0x1100bc00 0 0x400>;
+                       interrupts = <GIC_SPI 199 IRQ_TYPE_LEVEL_HIGH 0>;
+                       clocks = <&infracfg_ao CLK_INFRA_AO_THERM>;
+                       clock-names = "main";
+                       nvmem-cells = <&svs_calib_data &lvts_efuse_data1>;
+                       nvmem-cell-names = "svs-calibration-data", "t-calibration-data";
+                       resets = <&infracfg_ao MT8195_INFRA_RST3_THERM_CTRL_PTP_SWRST>;
+                       reset-names = "svs_rst";
+               };
+
                disp_pwm0: pwm@1100e000 {
                        compatible = "mediatek,mt8195-disp-pwm", "mediatek,mt8183-disp-pwm";
                        reg = <0 0x1100e000 0 0x1000>;
@@ -1682,6 +1694,9 @@
                        lvts_efuse_data2: lvts2-calib@1d0 {
                                reg = <0x1d0 0x38>;
                        };
+                       svs_calib_data: svs-calib@580 {
+                               reg = <0x580 0x64>;
+                       };
                };
 
                u3phy2: t-phy@11c40000 {