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HACK: ARM64: dts: rockchip: Hack out PWM regulators on gru

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Until we get PWM regulator solid, let's hack it out and just keep
whatever the firmware set for us.

Note that when the kernel boots it appears that it does some reparenting
of clocks and the PWM frequency actually changes.  ...but the voltage
seems OK ish.

Change-Id: I3be6ea4460f685e4a75a0f7f31f767f09b908442
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-on: https://chrome-internal-review.googlesource.com/254650
Reviewed-by: Stephen Barber <smbarber@google.com>
Tested-by: Doug Anderson <dianders@google.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
(Fixes the typo)
This commit is contained in:
Douglas Anderson
2016-04-12 14:07:11 -07:00
committed by Caesar Wang
parent aa5f0cf860
commit eb081d3ace
1 changed files with 53 additions and 0 deletions
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53
arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
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@@ -859,6 +859,59 @@ ap_i2c_audio: &i2c8 {
status = "okay";
};
/* HACKS: Poorly formatted on purpose so you know they're hacks */
/* HACK THE PWM REGULATOR OUT
*
* We'll hack them all to pretend they are fixed regulators
* and at exactly .9V, which is where cpufreq wants them.
*
* We'll also set all PWMs to disabled so we know that the PWM
* framework won't touch them.
*
* This relies on PWM clock being a critical clock.
*/
&ppvar_bigcpu {
compatible = "regulator-fixed";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
};
&ppvar_centerlogic {
compatible = "regulator-fixed";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
};
&ppvar_litcpu {
compatible = "regulator-fixed";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
};
&ppvar_gpu {
compatible = "regulator-fixed";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
};
&pwm0 {
status = "disabled";
};
&pwm1 {
status = "disabled";
};
&pwm2 {
status = "disabled";
};
&pwm3 {
status = "disabled";
};
/* PINCTRL: always below everything else */
&pinctrl {