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Date: Mon, 22 Aug 2022 10:33:39 +0200
From: Ondřej Jirman <megi@....cz>
To: Tom Fitzhenry <tom@...-fitzhenry.me.uk>
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Heiko Stuebner <heiko@...ech.de>, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
phone-devel@...r.kernel.org, Martijn Braam <martijn@...xit.nl>,
Kamil Trzciński <ayufan@...fan.eu>,
Caleb Connolly <kc@...tmarketos.org>,
Nícolas F . R . A . Prado <n@...aprado.net>
Subject: Re: [PATCH v4 1/1] arm64: dts: rockchip: Add initial support for
Pine64 PinePhone Pro
Hello Tom,
On Mon, Aug 22, 2022 at 11:08:08AM +1000, Tom Fitzhenry wrote:
> From: Martijn Braam <martijn@...xit.nl>
>
> This is a basic DT containing regulators and UART, intended to be a
> base that myself and others can add additional nodes in future patches.
>
[...]
> +
> + vcc_sys: vcc-sys-regulator {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_sys";
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + vcc3v3_sys: vcc3v3-sys-regulator {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc3v3_sys";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + vin-supply = <&vcc_sys>;
> + };
> +
> + vcca1v8_s3: vcc1v8-s3-regulator {
> + compatible = "regulator-fixed";
> + regulator-name = "vcca1v8_s3";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + vin-supply = <&vcc3v3_sys>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +};
> +
> +&cpu_l0 {
> + cpu-supply = <&vdd_cpu_l>;
> +};
> +
> +&cpu_l1 {
> + cpu-supply = <&vdd_cpu_l>;
> +};
> +
> +&cpu_l2 {
> + cpu-supply = <&vdd_cpu_l>;
> +};
> +
> +&cpu_l3 {
> + cpu-supply = <&vdd_cpu_l>;
> +};
> +
> +&cpu_b0 {
> + cpu-supply = <&vdd_cpu_b>;
> +};
> +
> +&cpu_b1 {
> + cpu-supply = <&vdd_cpu_b>;
> +};
> +
> +&emmc_phy {
> + status = "okay";
> +};
> +
> +&i2c0 {
> + clock-frequency = <400000>;
> + i2c-scl-rising-time-ns = <168>;
> + i2c-scl-falling-time-ns = <4>;
> + status = "okay";
> +
> + rk818: pmic@1c {
> + compatible = "rockchip,rk818";
> + reg = <0x1c>;
> + interrupt-parent = <&gpio1>;
> + interrupts = <RK_PC5 IRQ_TYPE_LEVEL_LOW>;
> + #clock-cells = <1>;
> + clock-output-names = "xin32k", "rk808-clkout2";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pmic_int_l>;
> + rockchip,system-power-controller;
> + wakeup-source;
> +
> + vcc1-supply = <&vcc_sys>;
> + vcc2-supply = <&vcc_sys>;
> + vcc3-supply = <&vcc_sys>;
> + vcc4-supply = <&vcc_sys>;
> + vcc6-supply = <&vcc_sys>;
> + vcc7-supply = <&vcc3v3_sys>;
> + vcc8-supply = <&vcc_sys>;
> + vcc9-supply = <&vcc3v3_sys>;
> +
> + regulators {
> + vdd_cpu_l: DCDC_REG1 {
> + regulator-name = "vdd_cpu_l";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <875000>;
> + regulator-max-microvolt = <975000>;
> + regulator-ramp-delay = <6001>;
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdd_center: DCDC_REG2 {
> + regulator-name = "vdd_center";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <1350000>;
Looks like a wrong top voltage. https://megous.com/dl/tmp/ad3dcc62bd00f41f.png
> + regulator-ramp-delay = <6001>;
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcc_ddr: DCDC_REG3 {
> + regulator-name = "vcc_ddr";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + vcc_1v8: DCDC_REG4 {
> + regulator-name = "vcc_1v8";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + vcca3v0_codec: LDO_REG1 {
> + regulator-name = "vcca3v0_codec";
> + regulator-always-on;
> + regulator-boot-on;
This should not be always on, but only enabled by the codec when needed.
You don't have codec described in this DT.
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + vcc3v0_touch: LDO_REG2 {
> + regulator-name = "vcc3v0_touch";
> + regulator-always-on;
> + regulator-boot-on;
This should not be always on. It should be enabled by touch controller,
when needed. You don't have touch controller described in this DT.
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcca1v8_codec: LDO_REG3 {
> + regulator-name = "vcca1v8_codec";
> + regulator-always-on;
> + regulator-boot-on;
This should not be always on, but only enabled by the codec when needed,
I suppose. Also modem codec is supplied by vcc1v8_codec which may need
a gpio configured as pull-down or drive low to be properly disabled,
and it is not defined in this DT. Please make sure that regulator's input
doesn't float and is disabled by default.
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + rk818_pwr_on: LDO_REG4 {
> + regulator-name = "rk818_pwr_on";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + vcc_3v0: LDO_REG5 {
> + regulator-name = "vcc_3v0";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + vcc_1v5: LDO_REG6 {
> + regulator-name = "vcc_1v5";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1500000>;
> + regulator-max-microvolt = <1500000>;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + vcc1v8_dvp: LDO_REG7 {
> + regulator-name = "vcc1v8_dvp";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + vcc3v3_s3: LDO_REG8 {
> + regulator-name = "vcc3v3_s3";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vccio_sd: LDO_REG9 {
> + regulator-name = "vccio_sd";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + vcc3v3_s0: SWITCH_REG {
> + regulator-name = "vcc3v3_s0";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> + };
> + };
> +
> + vdd_cpu_b: regulator@40 {
> + compatible = "silergy,syr827";
> + reg = <0x40>;
> + fcs,suspend-voltage-selector = <1>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&vsel1_pin>;
> + regulator-name = "vdd_cpu_b";
> + regulator-min-microvolt = <875000>;
> + regulator-max-microvolt = <1150000>;
> + regulator-ramp-delay = <1000>;
> + regulator-always-on;
> + regulator-boot-on;
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdd_gpu: regulator@41 {
> + compatible = "silergy,syr828";
> + reg = <0x41>;
> + fcs,suspend-voltage-selector = <1>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&vsel2_pin>;
> + regulator-name = "vdd_gpu";
> + regulator-min-microvolt = <875000>;
> + regulator-max-microvolt = <975000>;
> + regulator-ramp-delay = <1000>;
> + regulator-always-on;
> + regulator-boot-on;
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +};
> +
> +&cluster0_opp {
> + opp04 {
> + status = "disabled";
> + };
> +
> + opp05 {
> + status = "disabled";
> + };
> +};
> +
> +&cluster1_opp {
> + opp06 {
> + opp-hz = /bits/ 64 <1500000000>;
> + opp-microvolt = <1100000 1100000 1150000>;
> + };
> +
> + opp07 {
> + status = "disabled";
> + };
> +};
> +
> +&gpu_opp_table {
> + opp00 {
> + opp-hz = /bits/ 64 <200000000>;
> + opp-microvolt = <825000 825000 975000>;
> + };
> + opp01 {
> + opp-hz = /bits/ 64 <297000000>;
> + opp-microvolt = <825000 825000 975000>;
> + };
> + opp02 {
> + opp-hz = /bits/ 64 <400000000>;
> + opp-microvolt = <825000 825000 975000>;
> + };
> + opp03 {
> + opp-hz = /bits/ 64 <500000000>;
> + opp-microvolt = <875000 875000 975000>;
> + };
> + opp04 {
> + opp-hz = /bits/ 64 <600000000>;
> + opp-microvolt = <925000 925000 975000>;
> + };
^^^ Why replicate all these OPPs, when they have identical preferred voltage
in rk3399-opp.dtsi? Also GPU is not being enabled in the DT.
You don't need display output support to enable the gpu right away.
> + opp05 {
> + status = "disabled";
> + };
> +};
> +
> +
^ extra space
Thank you,
Ondrej
> +&io_domains {
> + bt656-supply = <&vcc1v8_dvp>;
> + audio-supply = <&vcca1v8_codec>;
> + sdmmc-supply = <&vccio_sd>;
> + gpio1830-supply = <&vcc_3v0>;
> + status = "okay";
> +};
> +
> +&pmu_io_domains {
> + pmu1830-supply = <&vcc_1v8>;
> + status = "okay";
> +};
> +
> +&pinctrl {
> + buttons {
> + pwrbtn_pin: pwrbtn-pin {
> + rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> + };
> +
> + pmic {
> + pmic_int_l: pmic-int-l {
> + rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> +
> + vsel1_pin: vsel1-pin {
> + rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_down>;
> + };
> +
> + vsel2_pin: vsel2-pin {
> + rockchip,pins = <1 RK_PB6 RK_FUNC_GPIO &pcfg_pull_down>;
> + };
> + };
> +};
> +
> +&sdmmc {
> + bus-width = <4>;
> + cap-sd-highspeed;
> + cd-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
> + disable-wp;
> + max-frequency = <150000000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
> + vmmc-supply = <&vcc3v3_sys>;
> + vqmmc-supply = <&vccio_sd>;
> + status = "okay";
> +};
> +
> +&sdhci {
> + bus-width = <8>;
> + mmc-hs200-1_8v;
> + non-removable;
> + status = "okay";
> +};
> +
> +&tsadc {
> + rockchip,hw-tshut-mode = <1>;
> + rockchip,hw-tshut-polarity = <1>;
> + status = "okay";
> +};
> +
> +&uart2 {
> + status = "okay";
> +};
> --
> 2.37.1
>
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