[U-Boot] [PATCH v1 3/3] rockchip: dts: evb_rk3288: Add mipi display support
Jacob Chen
jacobchen110 at gmail.com
Fri Apr 28 08:05:30 UTC 2017
Hi eric,
2017-04-28 15:46 GMT+08:00 Eric Gao <eric.gao at rock-chips.com>:
> Add mipi dsi configuration for evb-rk3288 device tree.
>
> Signed-off-by: Eric Gao <eric.gao at rock-chips.com>
>
> ---
>
> Changes in v1:
> -Add dts configuration.
>
> arch/arm/dts/rk3288-evb.dtsi | 88 ++++++++++++++++++++++++++++++++++++++++++++
> arch/arm/dts/rk3288.dtsi | 41 +++++++++++++++++++++
> 2 files changed, 129 insertions(+)
>
> diff --git a/arch/arm/dts/rk3288-evb.dtsi b/arch/arm/dts/rk3288-evb.dtsi
> index 4960f33..b37b570 100644
> --- a/arch/arm/dts/rk3288-evb.dtsi
> +++ b/arch/arm/dts/rk3288-evb.dtsi
> @@ -85,6 +85,16 @@
> regulator-always-on;
> vin-supply = <&vcc_5v>;
> };
> +
> + backlight: backlight {
> + compatible = "pwm-backlight";
> + status = "disabled";
> + };
> +
> + panel: panel {
> + compatible = "simple-panel";
> + status = "disabled";
> + };
I think it should be renamed to mipi_panel.
> };
>
> &cpu0 {
> @@ -318,6 +328,10 @@
> };
> };
>
> +&pwm0 {
> + status = "okay";
> +};
> +
> &saradc {
> vref-supply = <&vcc_18>;
> status = "okay";
> @@ -396,6 +410,80 @@
> status = "okay";
> };
>
> +&backlight {
> + power-supply = <&vcc_sys>;
> + enable-gpios = <&gpio7 2 GPIO_ACTIVE_HIGH>;
> + brightness-levels = <
> + 0 1 2 3 4 5 6 7
> + 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>;
> + default-brightness-level = <50>;
> + pwms = <&pwm0 0 25000 0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pwm0_pin>;
> + pwm-delay-us = <10000>;
> + status = "okay";
> + };
> +
It should be added directly to the front node, like
https://github.com/rockchip-linux/kernel/blob/release-develop/arch/arm/boot/dts/rk3288-evb.dtsi#L50
> +&panel {
> + power-supply = <&vcc_io>;
> + backlight = <&backlight>;
> + enable-gpios = <&gpio7 3 GPIO_ACTIVE_HIGH>;
> + status = "okay";
> +};
> +
> +&mipi_dsi0 {
> + status = "okay";
> + rockchip,panel = <&panel>;
> + display-timings {
> + timing0 {
> + bits-per-pixel = <24>;
> + clock-frequency = <160000000>;
> + hfront-porch = <120>;
> + hsync-len = <20>;
> + hback-porch = <21>;
> + hactive = <1200>;
> + vfront-porch = <21>;
> + vsync-len = <3>;
> + vback-porch = <18>;
> + vactive = <1920>;
> + hsync-active = <0>;
> + vsync-active = <0>;
> + de-active = <1>;
> + pixelclk-active = <0>;
> + };
> + };
> +};
> +
Please don't enable it by default, it will cause errors in edp board.
Just leave it disabled.
> &wdt {
> status = "okay";
> };
> diff --git a/arch/arm/dts/rk3288.dtsi b/arch/arm/dts/rk3288.dtsi
> index bcf051a..64aa07d 100644
> --- a/arch/arm/dts/rk3288.dtsi
> +++ b/arch/arm/dts/rk3288.dtsi
> @@ -664,6 +664,7 @@
> };
>
> vopb: vop at ff930000 {
> + u-boot,dm-pre-reloc;
> compatible = "rockchip,rk3288-vop";
> reg = <0xff930000 0x19c>;
> interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
> @@ -689,6 +690,11 @@
> reg = <2>;
> remote-endpoint = <&lvds_in_vopb>;
> };
> + vopb_out_mipi: endpoint at 3 {
> + reg = <3>;
> + remote-endpoint = <&mipi_in_vopb>;
> + };
> +
> };
> };
>
> @@ -729,6 +735,11 @@
> reg = <2>;
> remote-endpoint = <&lvds_in_vopl>;
> };
> + vopl_out_mipi: endpoint at 3 {
> + reg = <3>;
> + remote-endpoint = <&mipi_in_vopl>;
> + };
> +
> };
> };
>
> @@ -823,6 +834,36 @@
> };
> };
>
> + mipi_dsi0: mipi at ff960000 {
> + compatible = "rockchip,rk3288_mipi_dsi";
> + reg = <0xff960000 0x4000>;
> + clocks = <&cru PCLK_MIPI_DSI0>;
> + clock-names = "pclk_mipi";
> + /*pinctrl-names = "default";
> + pinctrl-0 = <&lcdc0_ctl>;*/
> + rockchip,grf = <&grf>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "disabled";
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + mipi_in: port {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + mipi_in_vopb: endpoint at 0 {
> + reg = <0>;
> + remote-endpoint = <&vopb_out_mipi>;
> + };
> + mipi_in_vopl: endpoint at 1 {
> + reg = <1>;
> + remote-endpoint = <&vopl_out_mipi>;
> + };
> + };
> + };
> + };
> +
> hdmi_audio: hdmi_audio {
> compatible = "rockchip,rk3288-hdmi-audio";
> i2s-controller = <&i2s>;
> --
> 1.9.1
>
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
More information about the U-Boot
mailing list