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arm64: tegra: Enable DFLL clock on P2894

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Add pinmux for PWM-based DFLL support.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
This commit is contained in:
Aaron Kling
2025-05-09 00:45:40 -05:00
committed by Thomas Makin
parent b603d035b1
commit a4ac4e98a5
1 changed files with 35 additions and 0 deletions
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35
arch/arm64/boot/dts/nvidia/tegra210-p2894.dtsi
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@@ -1347,6 +1347,20 @@
nvidia,open-drain = <TEGRA_PIN_DISABLE>;
};
};
dvfs_pwm_active_state: pinmux-dvfs-pwm-active {
dvfs_pwm_pbb1 {
nvidia,pins = "dvfs_pwm_pbb1";
nvidia,tristate = <TEGRA_PIN_DISABLE>;
};
};
dvfs_pwm_inactive_state: pinmux-dvfs-pwm-inactive {
dvfs_pwm_pbb1 {
nvidia,pins = "dvfs_pwm_pbb1";
nvidia,tristate = <TEGRA_PIN_ENABLE>;
};
};
};
serial@70006000 {
@@ -1776,6 +1790,27 @@
hvdd-usb-supply = <&vdd_3v3>;
};
clock@70110000 {
status = "okay";
nvidia,cf = <6>;
nvidia,ci = <0>;
nvidia,cg = <2>;
nvidia,droop-ctrl = <0x00000f00>;
nvidia,force-mode = <1>;
nvidia,sample-rate = <25000>;
nvidia,pwm-min-microvolts = <708000>;
nvidia,pwm-period-nanoseconds = <2500>; /* 2.5us */
nvidia,pwm-to-pmic;
nvidia,pwm-tristate-microvolts = <1000000>;
nvidia,pwm-voltage-step-microvolts = <19200>;
pinctrl-names = "dvfs_pwm_enable", "dvfs_pwm_disable";
pinctrl-0 = <&dvfs_pwm_active_state>;
pinctrl-1 = <&dvfs_pwm_inactive_state>;
};
clk32k_in: clock-32k {
compatible = "fixed-clock";
clock-frequency = <32768>;