Linux-2.6驱动开发
Linux-2.6驱动开发
以LCD为例，先注册device,再注册driver,两者名称一致。
static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = {
[0] = {
/* VGA */
.pixclock = 38250,
.xres = 480,
.yres = 640,
.bpp = 16,
.hsync_len = 8,
.left_margin = 8,
.right_margin = 24,
.vsync_len = 2,
.upper_margin = 2,
.lower_margin = 4,
.sync = 0,
},
};
static struct pxafb_mach_info littleton_lcd_info = {
.modes = tpo_tdo24mtea1_modes,
.num_modes = 1,
.lccr0 = LCCR0_Act,
.lccr3 = LCCR3_HSP | LCCR3_VSP,
.pxafb_lcd_power = littleton_lcd_power,
.pxafb_backlight_power = littleton_lcd_backlight,
};
static struct resource pxafb_resources[] = {
[0] = {
.start = 0x44000000,
.end = 0x4400ffff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_LCD,
.end = IRQ_LCD,
.flags = IORESOURCE_IRQ,
},
};
static u64 fb_dma_mask = ~(u64)0;
struct platform_device pxa_device_fb = {
.name = "pxa2xx-fb",
.id = -1,
.dev = {
.dma_mask = &fb_dma_mask,
.coherent_dma_mask = 0xffffffff,
.platform_data = littleton_lcd_info,
},
.num_resources = ARRAY_SIZE(pxafb_resources),
.resource = pxafb_resources,
};
platform_device_register(&pxa_device_fb);
/*****************************************************************************/
static struct platform_driver pxafb_driver = {
.probe = pxafb_probe,
#ifdef CONFIG_PM
.suspend = pxafb_suspend,
.resume = pxafb_resume,
.shutdown = pxafb_shutdown,
#endif
.driver = {
.name = "pxa2xx-fb",
},
};
platform_driver_register(&pxafb_driver);
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