linux系统驱动-spi接口屏

支持IC：gc9703 像素：565 v1.0 支持spi接口屏显示 v2.0 驱动中支持logo显示 v3.0 驱动中分辨率直接从设备树中获取，不在源码中指定 v4.0 驱动中增加开机进度块，进度条 v5.0 驱动中增加应用层控制背光接口：echo 0 > ./sys/devices/soc/spi1/spi_master/spi1/spi1.0/lcdbl （0/1 关、开背光） spi1: spi@01c06000 { interrupts = <11>; status = "okay"; gc9307:gc9307@0{ compatible = "spilcd,gc9307"; reg = <0>; status = "okay"; spi-max-frequency = <100000000>; reset-gpio = <&pio PF 1 1 1 1 1>; dc-gpio = <&pio PF 0 1 1 1 1>; bl-gpio = <&pio PE 6 1 1 1 1>; width = <240>; height = <320>; direction = <0>; }; };