Hi Frank,
Am Dienstag, 4. Juli 2017, 16:12:42 CEST schrieb Frank Wang:
> This patch adds vcc_io, vdd_arm and vdd_log regulator nodes
> for rk3229-evb board.
>
> Signed-off-by: Frank Wang <frank.wang@xxxxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/rk3229-evb.dts | 54
> ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+)
>
> diff --git a/arch/arm/boot/dts/rk3229-evb.dts
> b/arch/arm/boot/dts/rk3229-evb.dts index 82e8a53..8b10c64 100644
> --- a/arch/arm/boot/dts/rk3229-evb.dts
> +++ b/arch/arm/boot/dts/rk3229-evb.dts
> @@ -78,6 +78,52 @@
> regulator-always-on;
> regulator-boot-on;
> };
> +
> + vdd_arm: vdd-arm-regulator {
> + compatible = "pwm-regulator";
> + rockchip,pwm_id = <1>;
> + rockchip,pwm_voltage = <1100000>;
This doesn't look like a part of the mainline pwm-regulator binding
(both rockchip,* properties)
> + pwms = <&pwm1 0 25000 1>;
> + regulator-name = "vdd_arm";
> + regulator-min-microvolt = <950000>;
> + regulator-max-microvolt = <1400000>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
please also add supplies for regulators. Information on supplies
should be easily extractable from the board schematics.
This not only results in a nice tree in debugfs (regulator/regulator_summary)
but also makes sure supplying regulators are not accidentially turned off.
(pwm-supply for pwm-regulators, vin-supply for fixed regulators)
> +
> + vdd_log: vdd-log-regulator {
> + compatible = "pwm-regulator";
> + rockchip,pwm_id = <2>;
> + rockchip,pwm_voltage = <1200000>;
> + pwms = <&pwm2 0 25000 1>;
> + regulator-name = "vdd_log";
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <1300000>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + regulators {
> + compatible = "simple-bus";
don't create a subnode/bus for regulators. Just add them
regularly. Take a look at all the other boards (like rk3399-firefly,
gru, veyron) for reference.
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + vccio_1v8_reg: regulator@0 {
Same here, no regulator@0 please, just name this one
vccio_1v8: vccio-1v8-regulator {
(removed _reg from phandle and changed node name)
> + compatible = "regulator-fixed";
> + regulator-name = "vccio_1v8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + };
> +
> + vccio_3v3_reg: regulator@1 {
> + compatible = "regulator-fixed";
> + regulator-name = "vccio_3v3";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> + };
> };
Thanks
Heiko
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