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SPI1 用于LCD的写操作,内核打印spilcd spi1.0: TXFFE timed out和spilcd spi1.0: EOW timed out信息

您好:

我目前遇到的问题是SPI1挂接LCD设备,驱动程序使用的是spidev修改的,内核版本为4.19.94;

在向SPI写数据的时候内核总是打印spilcd spi1.0: TXFFE timed out和spilcd spi1.0: EOW timed out信息,请问这是什么原因导致的?

附设备树配置:

spi@481a0000 {
            compatible = "ti,omap4-mcspi";
            #address-cells = <0x1>;
            #size-cells = <0x0>;
            reg = <0x481a0000 0x400>;
            interrupts = <0x7d>;
            ti,spi-num-cs = <0x1>;
            ti,hwmods = "spi1";
            dmas = <0x28 0x2a 0x0 0x28 0x2b 0x0 0x28 0x2c 0x0 0x28 0x2d 0x0>;
            dma-names = "tx0", "rx0", "tx1", "rx1";
            status = "okay";
            pinctrl-names = "default";
            pinctrl-0 = <0x58>;
            spilcd@0 {
                compatible = "spilcd";
                spi-max-frequency = <0xc3500>;
                reg = <0x0>;                
            };
        };