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Message-ID: <25900873.Y1cXTD7Cd1@phil>
Date: Fri, 22 Mar 2019 23:16:36 +0100
From: Heiko Stuebner <heiko@...ech.de>
To: Douglas Anderson <dianders@...omium.org>
Cc: mka@...omium.org, ryandcase@...omium.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] ARM: dts: rockchip: Add device tree for rk3288-veyron-mighty
Am Freitag, 22. März 2019, 20:43:10 CET schrieb Douglas Anderson:
> Mighty is basically the same Chromebook as Jaq but it has a full-sized
> SD slot and some different (slightly more rugged) plastics around it.
> Like Jaq, Mighty may show up with various different brandings but all
> of them have the same board inside.
>
> In the downstream kernel Mighty and Jaq share a "dtsi" and Mighty just
> adds the SD write protect (needed for a full-sized SD slot). It seems
> cleaner for upstream just to add a separate dts file, though.
looking at other dts files in the mainline kernel [0] it also seems
possible to just include another ".dts" without it needing to have
a specific dtsi. So if it's really only the write-protect that is different
we might want to go that way.
Heiko
[0] exmaples from grepping for _.dts"_ which shows all boards doing that:
arm-realview-eb-11mp-bbrevd.dts
dove-cubox-es.dts
imx6dl-tx6u-80xx-mb7.dts
versatile-pb.dts
... and quite a bit more
> Signed-off-by: Douglas Anderson <dianders@...omium.org>
> ---
>
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/rk3288-veyron-mighty.dts | 182 +++++++++++++++++++++
> 2 files changed, 183 insertions(+)
> create mode 100644 arch/arm/boot/dts/rk3288-veyron-mighty.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index f4f5aeaf3298..48282ebfb3da 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -909,6 +909,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
> rk3288-veyron-jaq.dtb \
> rk3288-veyron-jerry.dtb \
> rk3288-veyron-mickey.dtb \
> + rk3288-veyron-mighty.dtb \
> rk3288-veyron-minnie.dtb \
> rk3288-veyron-pinky.dtb \
> rk3288-veyron-speedy.dtb \
> diff --git a/arch/arm/boot/dts/rk3288-veyron-mighty.dts b/arch/arm/boot/dts/rk3288-veyron-mighty.dts
> new file mode 100644
> index 000000000000..59c23be3d46f
> --- /dev/null
> +++ b/arch/arm/boot/dts/rk3288-veyron-mighty.dts
> @@ -0,0 +1,182 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Google Veyron Mighty Rev 1+ board device tree source
> + *
> + * Copyright 2015 Google, Inc
> + */
> +
> +/dts-v1/;
> +
> +#include "rk3288-veyron-chromebook.dtsi"
> +#include "cros-ec-sbs.dtsi"
> +
> +/ {
> + model = "Google Mighty";
> + compatible = "google,veyron-mighty-rev5", "google,veyron-mighty-rev4",
> + "google,veyron-mighty-rev3", "google,veyron-mighty-rev2",
> + "google,veyron-mighty-rev1", "google,veyron-mighty",
> + "google,veyron", "rockchip,rk3288";
> +
> + panel_regulator: panel-regulator {
> + compatible = "regulator-fixed";
> + enable-active-high;
> + gpio = <&gpio7 RK_PB6 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&lcd_enable_h>;
> + regulator-name = "panel_regulator";
> + startup-delay-us = <100000>;
> + vin-supply = <&vcc33_sys>;
> + };
> +
> + vcc18_lcd: vcc18-lcd {
> + compatible = "regulator-fixed";
> + enable-active-high;
> + gpio = <&gpio2 RK_PB5 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&avdd_1v8_disp_en>;
> + regulator-name = "vcc18_lcd";
> + regulator-always-on;
> + regulator-boot-on;
> + vin-supply = <&vcc18_wl>;
> + };
> +
> + backlight_regulator: backlight-regulator {
> + compatible = "regulator-fixed";
> + enable-active-high;
> + gpio = <&gpio2 RK_PB4 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&bl_pwr_en>;
> + regulator-name = "backlight_regulator";
> + vin-supply = <&vcc33_sys>;
> + startup-delay-us = <15000>;
> + };
> +};
> +
> +&backlight {
> + /* Mighty panel PWM must be >= 3%, so start non-zero brightness at 8 */
> + brightness-levels = <
> + 0
> + 8 9 10 11 12 13 14 15
> + 16 17 18 19 20 21 22 23
> + 24 25 26 27 28 29 30 31
> + 32 33 34 35 36 37 38 39
> + 40 41 42 43 44 45 46 47
> + 48 49 50 51 52 53 54 55
> + 56 57 58 59 60 61 62 63
> + 64 65 66 67 68 69 70 71
> + 72 73 74 75 76 77 78 79
> + 80 81 82 83 84 85 86 87
> + 88 89 90 91 92 93 94 95
> + 96 97 98 99 100 101 102 103
> + 104 105 106 107 108 109 110 111
> + 112 113 114 115 116 117 118 119
> + 120 121 122 123 124 125 126 127
> + 128 129 130 131 132 133 134 135
> + 136 137 138 139 140 141 142 143
> + 144 145 146 147 148 149 150 151
> + 152 153 154 155 156 157 158 159
> + 160 161 162 163 164 165 166 167
> + 168 169 170 171 172 173 174 175
> + 176 177 178 179 180 181 182 183
> + 184 185 186 187 188 189 190 191
> + 192 193 194 195 196 197 198 199
> + 200 201 202 203 204 205 206 207
> + 208 209 210 211 212 213 214 215
> + 216 217 218 219 220 221 222 223
> + 224 225 226 227 228 229 230 231
> + 232 233 234 235 236 237 238 239
> + 240 241 242 243 244 245 246 247
> + 248 249 250 251 252 253 254 255>;
> + power-supply = <&backlight_regulator>;
> +};
> +
> +&panel {
> + power-supply = <&panel_regulator>;
> +};
> +
> +&rk808 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pmic_int_l &dvs_1 &dvs_2>;
> + dvs-gpios = <&gpio7 RK_PB4 GPIO_ACTIVE_HIGH>,
> + <&gpio7 RK_PB7 GPIO_ACTIVE_HIGH>;
> +
> + regulators {
> + mic_vcc: LDO_REG2 {
> + regulator-name = "mic_vcc";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> + };
> +};
> +
> +&sdmmc {
> + pinctrl-names = "default";
> + pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd_disabled &sdmmc_cd_gpio
> + &sdmmc_wp_gpio &sdmmc_bus4>;
> + wp-gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>;
> +};
> +
> +&vcc_5v {
> + enable-active-high;
> + gpio = <&gpio7 RK_PC5 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&drv_5v>;
> +};
> +
> +&vcc50_hdmi {
> + enable-active-high;
> + gpio = <&gpio5 RK_PC3 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&vcc50_hdmi_en>;
> +};
> +
> +&pinctrl {
> + backlight {
> + bl_pwr_en: bl_pwr_en {
> + rockchip,pins = <2 12 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + buck-5v {
> + drv_5v: drv-5v {
> + rockchip,pins = <7 21 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + hdmi {
> + vcc50_hdmi_en: vcc50-hdmi-en {
> + rockchip,pins = <5 19 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + lcd {
> + lcd_enable_h: lcd-en {
> + rockchip,pins = <7 14 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> +
> + avdd_1v8_disp_en: avdd-1v8-disp-en {
> + rockchip,pins = <2 13 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + pmic {
> + dvs_1: dvs-1 {
> + rockchip,pins = <7 12 RK_FUNC_GPIO &pcfg_pull_down>;
> + };
> +
> + dvs_2: dvs-2 {
> + rockchip,pins = <7 15 RK_FUNC_GPIO &pcfg_pull_down>;
> + };
> + };
> +
> + sdmmc {
> + sdmmc_wp_gpio: sdmmc-wp-gpio {
> + rockchip,pins = <7 10 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> + };
> +};
>
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