LCD platform_device(s5pv210)

devs.c:

static struct resource s3cfb_resource[] = {

[0] = {

.start= S5P_PA_LCD,

.end= S5P_PA_LCD + S5P_SZ_LCD - 1,

.flags= IORESOURCE_MEM,

[1] = {

.start= IRQ_LCD1,

.end= IRQ_LCD1,

.flags= IORESOURCE_IRQ,

[2] = {

.start= IRQ_LCD0,

.end= IRQ_LCD0,

.flags= IORESOURCE_IRQ,

};

static u64 fb_dma_mask = 0xffffffffUL;

struct platform_device s3c_device_fb = {

.name= "s3cfb",

.id= -1,

.num_resources= ARRAY_SIZE(s3cfb_resource),

.resource= s3cfb_resource,

.dev= {

.dma_mask= &fb_dma_mask,

.coherent_dma_mask= 0xffffffffUL

}

};

static struct s3c_platform_fb default_fb_data __initdata = {//总的

#if defined(CONFIG_CPU_S5PV210_EVT0)

.hw_ver= 0x60,

#else

.hw_ver= 0x62,

#endif

.nr_wins= 5,

#if defined(CONFIG_FB_S3C_DEFAULT_WINDOW)

.default_win= CONFIG_FB_S3C_DEFAULT_WINDOW,

#else

.default_win= 0,

#endif

.swap= FB_SWAP_WORD | FB_SWAP_HWORD,

};

void __init s3cfb_set_platdata(struct s3c_platform_fb *pd)

{

struct s3c_platform_fb *npd;

int i;

if (!pd)

pd = &default_fb_data;

npd = kmemdup(pd, sizeof(struct s3c_platform_fb), GFP_KERNEL);

if (!npd)

printk(KERN_ERR "%s: no memory for platform data\n", __func__);

else {

for (i = 0; i < npd->nr_wins; i++)//每个fb拥有的缓冲区个数

npd->nr_buffers[i] = 1;

#if defined(CONFIG_FB_S3C_NR_BUFFERS)

npd->nr_buffers[npd->default_win] = CONFIG_FB_S3C_NR_BUFFERS;

#else

npd->nr_buffers[npd->default_win] = 1;

#endif

s3cfb_get_clk_name(npd->clk_name);

npd->cfg_gpio = s3cfb_cfg_gpio;

npd->backlight_on = s3cfb_backlight_on;

npd->backlight_off = s3cfb_backlight_off;

npd->lcd_on = s3cfb_lcd_on;

npd->lcd_off = s3cfb_lcd_off;

npd->clk_on = s3cfb_clk_on;

npd->clk_off = s3cfb_clk_off;

s3c_device_fb.dev.platform_data = npd;//放到平台数据中

}

巴特西

LCD platform_device(s5pv210)

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