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It features 800x1280 resolutions, with built in GT9271 captive touchscreen and adjustable backlight via PWM. eDP panel connections are: - VCC3V3_SYS: 3.3V panel power supply - GPIO4_C2: PWM0_BL pin - GPIO4_D5_LCD_BL_EN: Backlight enable pin - VCC12V0_SYS: 12V backlight power supply - Touchscreen connected via I2C4 - GPIO1_C4_TP_INT: touchscreen interrupt pin - GPIO1_B5_TP_RST: touchscreen reset pin Add support for it. Signed-off-by: Jagan Teki --- Note: we need to disable hdmi-cec pinctrl to work with edp-hpd since both share same pin, otherwise we can encounter below error during bootup [ 1.047726] rockchip-pinctrl pinctrl: pin gpio4-23 already requested by ff940000.hdmi; cannot claim for ff970000.edp [ 1.048655] rockchip-pinctrl pinctrl: pin-151 (ff970000.edp) status -22 [ 1.049235] rockchip-pinctrl pinctrl: could not request pin 151 (gpio4-23) from group edp-hpd on device rockchip-pinctrl [ 1.050191] rockchip-dp ff970000.edp: Error applying setting, reverse things back [ 1.050867] rockchip-dp: probe of ff970000.edp failed with error -22 .../boot/dts/rockchip/rk3399-nanopc-t4.dts | 82 +++++++++++++++++++ 1 file changed, 82 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts index 931c3dbf1b7d..b652d960946f 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts @@ -46,6 +46,48 @@ }; }; + backlight: backlight { + compatible = "pwm-backlight"; + 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 = <200>; + enable-gpios = <&gpio4 RK_PD5 GPIO_ACTIVE_HIGH>; /* GPIO4_D5_LCD_BL_EN */ + pwms = <&pwm0 0 25000 0>; + power-supply = <&vcc12v0_sys>; + status = "okay"; + }; + ir-receiver { compatible = "gpio-ir-receiver"; gpios = <&gpio0 RK_PA6 GPIO_ACTIVE_LOW>; @@ -64,6 +106,18 @@ fan-supply = <&vcc12v0_sys>; pwms = <&pwm1 0 50000 0>; }; + + panel { + compatible ="friendlyarm,hd702e"; + backlight = <&backlight>; + power-supply = <&vcc3v3_sys>; + + port { + panel_in_edp: endpoint { + remote-endpoint = <&edp_out_panel>; + }; + }; + }; }; &cpu_thermal { @@ -94,6 +148,23 @@ }; }; +&edp { + status = "okay"; + + ports { + edp_out: port@1 { + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + + edp_out_panel: endpoint@0 { + reg = <0>; + remote-endpoint = <&panel_in_edp>; + }; + }; + }; +}; + &gpu_thermal { trips { gpu_warm: gpu_warm { @@ -130,6 +201,17 @@ }; }; +&i2c4 { + touchscreen@5d { + compatible = "goodix,gt911"; + reg = <0x5d>; + interrupt-parent = <&gpio1>; + interrupts = ; + irq-gpio = <&gpio1 RK_PC4 GPIO_ACTIVE_HIGH>; /* GPIO1_C4_TP_INT */ + reset-gpio = <&gpio1 RK_PB5 GPIO_ACTIVE_LOW>; /* GPIO1_B5_TP_RST */ + }; +}; + &sdhci { mmc-hs400-1_8v; mmc-hs400-enhanced-strobe;