A133 WIFI 无法打开问题
报错日志
[ 5.778834] [ T193] sunxi-rfkill soc@2900000:rfkill: module version: v1.1.0
[ 5.786803] [ T193] sunxi-rfkill soc@2900000:rfkill: pinctrl_lookup_state(default) failed! return ffffffffffffffed
[ 5.798631] [ T193] sunxi-rfkill soc@2900000:rfkill: get gpio chip_en failed
[ 5.806645] [ T193] sunxi-rfkill soc@2900000:rfkill: power_en gpio=361 assert=1
[ 5.814973] [ T193] sunxi-rfkill soc@2900000:rfkill: wlan_busnum (1)
[ 5.822634] [ T193] sunxi-rfkill soc@2900000:rfkill: wlan power[0] (axp803-dldo1) voltage: 1800mV
[ 5.832704] [ T193] sunxi-rfkill soc@2900000:rfkill: wlan_regon gpio=359 assert=1
[ 5.841227] [ T193] sunxi-rfkill soc@2900000:rfkill: wlan_hostwake gpio=360 assert=1
[ 5.850019] [ T193] sunxi-rfkill soc@2900000:rfkill: wakeup source is enabled
[ 5.858251] [ T193] sunxi-rfkill soc@2900000:rfkill: bt power[0] (axp803-dldo1) voltage: 1800mV
[ 5.873840] [ T193] sunxi-rfkill soc@2900000:rfkill: bt_rst gpio=354 assert=0
[ 5.881922] [ T193] sun50iw10p1-r-pinctrl-aw 7022000.pinctrl: pin PL2 already requested by 7080000.uart; cannot claim for 7022000.pinctrl:354
[ 5.896201] [ T193] sun50iw10p1-r-pinctrl-aw 7022000.pinctrl: pin-354 (7022000.pinctrl:354) status -22
[ 5.906664] [ T193] sunxi-rfkill soc@2900000:rfkill: can't request bt_rst gpio 354
问题原因
PL2 引脚配置冲突
修改方案
/* bt session */
bt {
compatible = "allwinner,sunxi-bt";
clocks;
clock-names;
bt_power = "axp803-dldo1";
bt_power_vol = <1800000>;
bt_rst_n = <&r_pio PL 4 GPIO_ACTIVE_LOW>; // 修改PL2 为 PL4
};
RK3568 MIPI 屏幕无法点亮问题
报错日志
[ 5.685860] rockchip-vop2 fe040000.vop: [drm:vop2_bind] vp0 assign plane mask: 0x22, primary plane phy id: 5
[ 5.685891] rockchip-vop2 fe040000.vop: [drm:vop2_bind] vp1 assign plane mask: 0x15, primary plane phy id: 4
[ 5.685899] rockchip-vop2 fe040000.vop: [drm:vop2_bind] vp2 assign plane mask: 0x8, primary plane phy id: 3
[ 5.686322] [drm] failed to init overlay plane Cluster0-win1
[ 5.686358] [drm] failed to init overlay plane Cluster1-win1
[ 5.686503] rockchip-drm display-subsystem: bound fe040000.vop (ops 0xffffffc0096e8f78)
[ 5.690316] rockchip-drm display-subsystem: bound fe0a0000.hdmi (ops 0xffffffc0096f7b08)
[ 5.690492] rockchip-drm display-subsystem: bound fe070000.dsi (ops 0xffffffc0096f9460)
[ 5.734417] rockchip-vop2 fe040000.vop: [drm:vop2_isr] *ERROR* POST_BUF_EMPTY irq err at vp1
[ 5.818653] rockchip-drm display-subsystem: [drm] fb0: rockchipdrmfb frame buffer device
查看当前的显示状态
root@ubuntu2004:~# cat /sys/kernel/debug/dri/0/summary
Video Port0: ACTIVE
Connector: HDMI-A-1
bus_format[2025]: YUV8_1X24
overlay_mode[1] output_mode[f] color_space[3], eotf:0
Display mode: 1024x768p60
clk[65000] real_clk[65000] type[48] flag[a]
H: 1024 1048 1184 1344
V: 768 771 777 806
Smart1-win0: ACTIVE
win_id: 1
format: XR24 little-endian (0x34325258) SDR[0] color_space[0] glb_alpha[0xff]
rotate: xmirror: 0 ymirror: 0 rotate_90: 0 rotate_270: 0
csc: y2r[0] r2y[1] csc mode[1]
zpos: 0
src: pos[0, 0] rect[1024 x 768]
dst: pos[0, 0] rect[1024 x 768]
buf[0]: addr: 0x000000007eda8000 pitch: 4096 offset: 0
Video Port1: ACTIVE
Connector: DSI-1
bus_format[100a]: RGB888_1X24
overlay_mode[0] output_mode[0] color_space[0], eotf:0
Display mode: 800x1280p50
clk[60000] real_clk[60000] type[48] flag[a]
H: 800 872 896 920
V: 1280 1292 1294 1304
Smart0-win0: ACTIVE
win_id: 0
format: XR24 little-endian (0x34325258) SDR[0] color_space[0] glb_alpha[0xff]
rotate: xmirror: 0 ymirror: 0 rotate_90: 0 rotate_270: 0
csc: y2r[0] r2y[0] csc mode[0]
zpos: 1
src: pos[0, 0] rect[800 x 1280]
dst: pos[0, 0] rect[800 x 1280]
buf[0]: addr: 0x000000007f0a8000 pitch: 3200 offset: 0
Video Port2: DISABLED
原因分析
为什么要加 *-lane-pol-swap？
硬件布线不同：如果你硬件设计时 MIPI 差分对（比如 D0P/D0N）接反了，导致物理上的信号正负颠倒，就需要通过软件配置极性翻转，让信号逻辑方向正确。
解决方案
//video_phy0 是第一个（一般给主屏），video_phy1 是第二个（副屏）
&video_phy1 {
status = "okay";
clock-lane-pol-swap; // 时钟通道（Clock Lane）的极性反转，即将 MIPI 时钟通道的差分信号正负互换
data0-lane-pol-swap;
data1-lane-pol-swap;
data2-lane-pol-swap;
data3-lane-pol-swap;
};
