AM1808 LCD驱动移植

此文是基于AM1808平台的LCD 驱动移植过程。

一。修改LCD panel参数，文件： Da8xx-fb.c

static struct da8xx_panel known_lcd_panels[] = {
    /* Sharp LCD035Q3DG01 */
    [0] = {
        .name = "Sharp_LCD035Q3DG01",
        .width = 320,
        .height = 240,
        .hfp = 8,
        .hbp = 6,
        .hsw = 0,
        .vfp = 2,
        .vbp = 2,
        .vsw = 0,
        .pxl_clk = 4608000,
        .invert_pxl_clk = 1,
    },
    /* Sharp LK043T1DG01 */
    [1] = {
        .name = "Sharp_LK043T1DG01",
        .width = 480,
        .height = 272,
        .hfp = 2,
        .hbp = 2,
        .hsw = 41,
        .vfp = 3,
        .vbp = 3,
        .vsw = 10,
        .pxl_clk = 7833600,
        .invert_pxl_clk = 0,
    },
    /* LinCuiting SET 2015_10_14  LCD70P800480 */
     [2] = {
          .name = "MCUzone_LCD70",
          .width = 800,
          .height = 480,
          .hfp = 209,
          .hbp = 25,//46,
          .hsw = 19,
          .vfp = 21,
          .vbp = 12,//23,
          .vsw = 9,
          .pxl_clk = 33300000,
          .invert_pxl_clk = 0,
     },
};

二。da8xx_lcdc_platform_data加入自己的屏，文件：Devices-da8xx.c

struct da8xx_lcdc_platform_data mcuzone_lcd70p800480_pdata = {
    .manu_name      = "MCUzone",
    .controller_data    = &lcd_cfg,
    .type           = "MCUzone_LCD70",
};

三。修改头文件。文件：Da8xx.h， Mux.h
1.Da8xx.h

extern const short da8xx_lcdc_platform_data mcuzone_lcd70p800480_pdata;

2.Mux.h

    /* GPIO function */
    DA850_GPIO2_0,
    DA850_GPIO2_4,
    DA850_GPIO2_6,
    DA850_GPIO2_8,
    DA850_GPIO2_14,
    DA850_GPIO2_15,
    DA850_GPIO4_0,
    DA850_GPIO4_1,
    DA850_GPIO1_4,
    DA850_GPIO1_5,
    DA850_GPIO0_11,
    DA850_GPIO6_13,
    DA850_RTC_ALARM,
    DA850_GPIO7_4,
    DA850_GPIO0_15,
    DA850_GPIO6_9,
    DA850_GPIO6_10, //lct set
    DA850_GPIO8_10, //lct set

四。Da850.c

    /* GPIO function */
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    MUX_CFG(DA850, GPIO8_10,    18, 28, 15, 8,  false) //lct set

五。板级信息：注册屏。文件：Board-da850-evm.c

#define DA850_LCD_PWR_PIN       GPIO_TO_PIN(8, 11)//lct set
#define DA850_LCD_BL_PIN        GPIO_TO_PIN(8, 10)//lct set

//lct set
static const short da850_evm_lcdc_pins[] = {
    DA850_GPIO6_10, DA850_GPIO8_10,
    -1
};

static struct platform_device *da850_evm_devices[] __initdata = {
    &da850_evm_nandflash_device,
//  &da850_evm_norflash_device,
};

static __init void da850_evm_init(void)
{
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#if 0
#warning build for LCD43
    sharp_lk043t1dg01_pdata.panel_power_ctrl = da850_panel_power_ctrl,
    ret = da8xx_register_lcdc(&sharp_lk043t1dg01_pdata);
#else
#warning build for LCD70    
    mcuzone_lcd70p800480_pdata.panel_power_ctrl = da850_panel_power_ctrl,
    ret = da8xx_register_lcdc(&mcuzone_lcd70p800480_pdata);
printk("%s:%s:da8xx_register_lcdc, ==========ret=%d\n", __FILE__, __func__, ret);

#endif
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}