I get some parts from i2c0-overlaywith this I getand black screen without backlight.
Is it possible create VCC supply in device tree (with GPIO22 enable pin) and delete line enable-gpios = <&gpio 22 0>; for pwm and bridge? (I can't control separately enable pin for PWM and for display, there is only common pin for switch display power)
Code:
/* * vc4-kms-dsi-ti-sn65dsi83-somepanel-overlay.dts *//dts-v1/;/plugin/;/ { compatible = "brcm,bcm2835"; /* PWM0 function */ fragment@0 { target = <&gpio>; __overlay__ { pwm_pins: pwm_pins { brcm,pins = <12>; brcm,function = <4>; brcm,pull = <0>; }; }; }; fragment@1 { target = <&pwm>; frag1: __overlay__ { pinctrl-names = "default"; pinctrl-0 = <&pwm_pins>; assigned-clock-rates = <100000000>; status = "okay"; }; }; fragment@2 { target-path = "/"; __overlay__ { //#gpio-cells = <2>; /* Panel backlight through PWM0 on GPIO 12 */ backlight_lvds: backlight { compatible = "pwm-backlight"; pwms = <&pwm 0 5000000 0>; /* Period of 5000000ns means 200Hz */ brightness-levels = <0 1000>; num-interpolated-steps = <1000>; default-brightness-level = <800>; /*enable-gpios = <&gpio 22 0>; Backlight enable... */ }; panel: panel { compatible = "panel-lvds"; backlight = <&backlight_lvds>; /* Physical dimensions of active area */ width-mm = <217>; height-mm = <136>; data-mapping = "vesa-24"; panel-timing { clock-frequency = <66300000 69300000 78900000>; de-active = <1>; hactive = <1280 1280 1280>; hback-porch = <64 64 64>; hfront-porch = <16 16 16>; hsync-active = <0>; hsync-len = <24 24 24>; pixelclk-active = <1>; vactive = <800 800 800>; vback-porch = <24 24 24>; vfront-porch = <8 8 8>; vsync-active = <0>; vsync-len = <8 8 8>; }; port { panel_in_lvds: endpoint { remote-endpoint = <&bridge_out>; }; }; }; }; }; fragment@3 { target = <&i2c0if>; __overlay__ { #gpio-cells = <2>; #address-cells = <1>; #size-cells = <0>; pinctrl-names = "default"; pinctrl-0 = <&i2c0_pins>; status = "okay"; bridge@2c { compatible = "ti,sn65dsi83"; reg = <0x2c>; enable-gpios = <&gpio 22 0>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; bridge_in: endpoint { remote-endpoint = <&dsi_out_port>; data-lanes = <0 1 2 3>; }; }; port@2 { reg = <2>; bridge_out: endpoint { remote-endpoint = <&panel_in_lvds>; }; }; }; }; }; }; fragment@4 { target = <&dsi1>; __overlay__ { #address-cells = <1>; #size-cells = <0>; status = "okay"; port { dsi_out_port: endpoint { remote-endpoint = <&bridge_in>; data-lanes = <0 1 2 3>; }; }; }; }; fragment@5 { target = <&i2c0_pins>; pins1: __overlay__ { brcm,pins = <0 1>; brcm,function = <4>; /* alt0 */ }; }; fragment@6 { target = <&i2c0>; __dormant__ { compatible = "brcm,bcm2708-i2c"; }; }; fragment@7 { target = <&i2c0mux>; __overlay__ { status = "ok"; }; }; fragment@8 { target-path = "/aliases"; __overlay__ { i2c0 = "/soc/i2c@7e205000"; }; }; fragment@9 { target-path = "/__symbols__"; __overlay__ { i2c0 = "/soc/i2c@7e205000"; }; };};Code:
raspi-gpio getBANK0 (GPIO 0 to 27):GPIO 0: level=1 alt=0 func=SDA0 pull=UPGPIO 1: level=1 alt=0 func=SCL0 pull=UPGPIO 2: level=1 alt=0 func=SDA1 pull=UPGPIO 3: level=1 alt=0 func=SCL1 pull=UPGPIO 4: level=0 alt=4 func=TXD3 pull=NONEGPIO 5: level=1 alt=4 func=RXD3 pull=UPGPIO 6: level=0 func=OUTPUT pull=UPGPIO 7: level=1 func=INPUT pull=UPGPIO 8: level=1 func=OUTPUT pull=UPGPIO 9: level=0 alt=0 func=SPI0_MISO pull=DOWNGPIO 10: level=0 alt=0 func=SPI0_MOSI pull=DOWNGPIO 11: level=0 alt=0 func=SPI0_SCLK pull=DOWNGPIO 12: level=0 alt=0 func=PWM0_0 pull=NONEGPIO 13: level=0 alt=3 func=SPI5_MISO pull=DOWNGPIO 14: level=1 alt=3 func=SPI5_MOSI pull=NONEGPIO 15: level=0 alt=3 func=SPI5_SCLK pull=UPGPIO 16: level=0 func=INPUT pull=DOWNGPIO 17: level=0 func=INPUT pull=DOWNGPIO 18: level=0 alt=0 func=PCM_CLK pull=DOWNGPIO 19: level=0 alt=0 func=PCM_FS pull=DOWNGPIO 20: level=1 func=INPUT pull=DOWNGPIO 21: level=0 alt=0 func=PCM_DOUT pull=DOWNGPIO 22: level=0 func=OUTPUT pull=DOWNGPIO 23: level=1 func=INPUT pull=DOWNGPIO 24: level=1 func=INPUT pull=DOWNGPIO 25: level=0 func=INPUT pull=DOWNGPIO 26: level=1 func=OUTPUT pull=DOWNGPIO 27: level=1 func=OUTPUT pull=DOWNBANK1 (GPIO 28 to 45):GPIO 28: level=1 alt=5 func=RGMII_MDIO pull=UPGPIO 29: level=0 alt=5 func=RGMII_MDC pull=DOWNGPIO 30: level=1 func=INPUT pull=UPGPIO 31: level=1 func=INPUT pull=NONEGPIO 32: level=1 func=INPUT pull=DOWNGPIO 33: level=1 func=INPUT pull=DOWNGPIO 34: level=1 alt=3 func=SD1_CLK pull=NONEGPIO 35: level=1 alt=3 func=SD1_CMD pull=UPGPIO 36: level=1 alt=3 func=SD1_DAT0 pull=UPGPIO 37: level=1 alt=3 func=SD1_DAT1 pull=UPGPIO 38: level=1 alt=3 func=SD1_DAT2 pull=UPGPIO 39: level=1 alt=3 func=SD1_DAT3 pull=UPGPIO 40: level=1 func=INPUT pull=DOWNGPIO 41: level=1 func=INPUT pull=DOWNGPIO 42: level=1 func=OUTPUT pull=DOWNGPIO 43: level=1 func=INPUT pull=DOWNGPIO 44: level=1 func=INPUT pull=NONEGPIO 45: level=1 func=INPUT pull=NONEBANK2 (GPIO 46 to 53):GPIO 46: level=0 func=INPUT pull=UPGPIO 47: level=0 func=INPUT pull=UPGPIO 48: level=0 alt=0 func=SD0_CLK pull=DOWNGPIO 49: level=0 alt=0 func=SD0_CMD pull=DOWNGPIO 50: level=0 alt=0 func=SD0_DAT0 pull=DOWNGPIO 51: level=0 alt=0 func=SD0_DAT1 pull=DOWNGPIO 52: level=0 alt=0 func=SD0_DAT2 pull=DOWNGPIO 53: level=0 alt=0 func=SD0_DAT3 pull=DOWNCode:
[ 0.279642] bcm2708_fb: probe of soc:fb failed with error -2[ 1.517921] sn65dsi83 0-002c: supply vcc not found, using dummy regulatorIs it possible create VCC supply in device tree (with GPIO22 enable pin) and delete line enable-gpios = <&gpio 22 0>; for pwm and bridge? (I can't control separately enable pin for PWM and for display, there is only common pin for switch display power)
Code:
i2cdetect -y 0 0 1 2 3 4 5 6 7 8 9 a b c d e f00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Statistics: Posted by Kuzma30 — Fri Mar 01, 2024 12:57 pm