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Date: Thu, 5 Nov 2020 02:44:23 +0300
From: Dmitry Osipenko <digetx@...il.com>
To: Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Alan Stern <stern@...land.harvard.edu>,
Peter Chen <Peter.Chen@....com>,
Mark Brown <broonie@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Lee Jones <lee.jones@...aro.org>,
Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>,
Ulf Hansson <ulf.hansson@...aro.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Peter Geis <pgwipeout@...il.com>,
Nicolas Chauvet <kwizart@...il.com>
Cc: linux-samsung-soc@...r.kernel.org, devel@...verdev.osuosl.org,
linux-usb@...r.kernel.org, linux-pwm@...r.kernel.org,
linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-media@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: [PATCH v1 26/30] ARM: tegra: ventana: Add voltage supplies to DVFS-capable devices
Add voltage supplies to DVFS-capable devices in order to enable
system-wide voltage scaling and allow CORE/RTC regulators to go lower.
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
arch/arm/boot/dts/tegra20-ventana.dts | 65 +++++++++++++++++++++++----
1 file changed, 56 insertions(+), 9 deletions(-)
diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index b158771ac0b7..d5d90605e649 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -23,7 +23,19 @@ memory@0 {
};
host1x@...00000 {
+ core-supply = <&vdd_core>;
+
+ gr2d@...40000 {
+ core-supply = <&vdd_core>;
+ };
+
+ gr3d@...80000 {
+ core-supply = <&vdd_core>;
+ };
+
dc@...00000 {
+ core-supply = <&vdd_core>;
+
rgb {
status = "okay";
@@ -31,11 +43,16 @@ rgb {
};
};
+ dc@...40000 {
+ core-supply = <&vdd_core>;
+ };
+
hdmi@...80000 {
status = "okay";
vdd-supply = <&hdmi_vdd_reg>;
pll-supply = <&hdmi_pll_reg>;
+ core-supply = <&vdd_core>;
nvidia,ddc-i2c-bus = <&hdmi_ddc>;
nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7)
@@ -43,6 +60,10 @@ hdmi@...80000 {
};
};
+ vde@...1a000 {
+ core-supply = <&vdd_core>;
+ };
+
pinmux@...00014 {
pinctrl-names = "default";
pinctrl-0 = <&state_default>;
@@ -419,18 +440,28 @@ sys_reg: sys {
regulator-always-on;
};
- sm0 {
+ vdd_core: sm0 {
regulator-name = "vdd_sm0,vdd_core";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-coupled-with = <&rtc_vdd &vdd_cpu>;
+ regulator-coupled-max-spread = <170000 550000>;
regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-core-regulator;
};
- sm1 {
+ vdd_cpu: sm1 {
regulator-name = "vdd_sm1,vdd_cpu";
- regulator-min-microvolt = <1000000>;
- regulator-max-microvolt = <1000000>;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1125000>;
+ regulator-coupled-with = <&vdd_core &rtc_vdd>;
+ regulator-coupled-max-spread = <550000 550000>;
regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-cpu-regulator;
};
sm2_reg: sm2 {
@@ -449,10 +480,16 @@ ldo1 {
regulator-always-on;
};
- ldo2 {
+ rtc_vdd: ldo2 {
regulator-name = "vdd_ldo2,vdd_rtc";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-coupled-with = <&vdd_core &vdd_cpu>;
+ regulator-coupled-max-spread = <170000 550000>;
+ regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-rtc-regulator;
};
ldo3 {
@@ -526,8 +563,13 @@ pmc@...0e400 {
nvidia,sys-clock-req-active-high;
};
+ memory-controller@...0f400 {
+ core-supply = <&vdd_core>;
+ };
+
usb@...00000 {
status = "okay";
+ core-supply = <&vdd_core>;
};
usb-phy@...00000 {
@@ -538,6 +580,7 @@ usb@...04000 {
status = "okay";
nvidia,phy-reset-gpio = <&gpio TEGRA_GPIO(V, 1)
GPIO_ACTIVE_LOW>;
+ core-supply = <&vdd_core>;
};
usb-phy@...04000 {
@@ -548,6 +591,7 @@ usb-phy@...04000 {
usb@...08000 {
status = "okay";
+ core-supply = <&vdd_core>;
};
usb-phy@...08000 {
@@ -559,6 +603,7 @@ mmc@...00000 {
power-gpios = <&gpio TEGRA_GPIO(K, 6) GPIO_ACTIVE_HIGH>;
bus-width = <4>;
keep-power-in-suspend;
+ core-supply = <&vdd_core>;
};
mmc@...00400 {
@@ -567,12 +612,14 @@ mmc@...00400 {
wp-gpios = <&gpio TEGRA_GPIO(H, 1) GPIO_ACTIVE_HIGH>;
power-gpios = <&gpio TEGRA_GPIO(I, 6) GPIO_ACTIVE_HIGH>;
bus-width = <4>;
+ core-supply = <&vdd_core>;
};
mmc@...00600 {
status = "okay";
bus-width = <8>;
non-removable;
+ core-supply = <&vdd_core>;
};
backlight: backlight {
--
2.27.0
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