static int sprdfb_probe(struct platform_device *pdev)
{
struct fb_info *fb = NULL;
struct sprdfb_device *dev = NULL;
int ret = 0;
#ifdef CONFIG_OF
struct resource r;
#ifdef CONFIG_FB_LOW_RES_SIMU
uint32_t display_size_array[2];
#endif
pr_debug(KERN_INFO "sprdfb: [%s]\n", __FUNCTION__);
#else
pr_debug(KERN_INFO "sprdfb: [%s], id = %d\n", __FUNCTION__, pdev->id);
#endif
fb = framebuffer_alloc(sizeof(struct sprdfb_device), &pdev->dev);
if (!fb) {
printk(KERN_ERR "sprdfb: sprdfb_probe allocate buffer fail.\n");
ret = -ENOMEM;
goto err0;
}
dev = fb->par;
dev->fb = fb;
#ifdef CONFIG_OF
dev->of_dev = &(pdev->dev);
dev->dev_id = of_alias_get_id(pdev->dev.of_node, "lcd");
printk("sprdfb: [%s] id = %d\n", __FUNCTION__, dev->dev_id);
#else
dev->dev_id = pdev->id;
#endif
if((SPRDFB_MAINLCD_ID != dev->dev_id) &&(SPRDFB_SUBLCD_ID != dev->dev_id)){
printk(KERN_ERR "sprdfb: sprdfb_probe fail. (unsupported device id)\n");
goto err0;
}
switch(SPRDFB_IN_DATA_TYPE){
case SPRD_IN_DATA_TYPE_ABGR888:
dev->bpp = 32;
break;
case SPRD_IN_DATA_TYPE_BGR565:
dev->bpp = 16;
break;
default:
dev->bpp = 32;
break;
}
if(SPRDFB_MAINLCD_ID == dev->dev_id){
dev->ctrl = &sprdfb_dispc_ctrl;
#ifdef CONFIG_OF
if(0 != of_address_to_resource(pdev->dev.of_node, 0, &r)){
printk(KERN_ERR "sprdfb: sprdfb_probe fail. (can't get register base address)\n");
goto err0;
}
g_dispc_base_addr = (unsigned long)ioremap_nocache(r.start,
resource_size(&r));
if(!g_dispc_base_addr)
BUG();
printk("sprdfb: set g_dispc_base_addr = %ld\n", g_dispc_base_addr);
#endif
}
dev->frame_count = 0;
dev->logo_buffer_addr_v = 0;
dev->capability = sprdfb_config_capability();
if(sprdfb_panel_get(dev)){
dev->panel_ready = true;
#ifdef CONFIG_OF
#ifdef CONFIG_FB_LOW_RES_SIMU
ret = of_property_read_u32_array(pdev->dev.of_node, "sprd,fb_display_size", display_size_array, 2);
if (0 != ret) {
printk("sprdfb: read display_size from dts fail (%d)\n", ret);
dev->display_width = dev->panel->width;
dev->display_height = dev->panel->height;
} else {
dev->display_width = display_size_array[0];
dev->display_height = display_size_array[1];
}
#endif
#endif
dev->ctrl->logo_proc(dev);
}else{
dev->panel_ready = false;
}
dev->ctrl->early_init(dev);
if(!dev->panel_ready){
if (!sprdfb_panel_probe(dev)) {
ret = -EIO;
goto cleanup;
}
}
ret = setup_fb_mem(dev, pdev);
if (ret) {
goto cleanup;
}
setup_fb_info(dev);
/* register framebuffer device */
ret = register_framebuffer(fb);
if (ret) {
printk(KERN_ERR "sprdfb: sprdfb_probe register framebuffer fail.\n");
goto cleanup;
}
platform_set_drvdata(pdev, dev);
sprdfb_create_sysfs(dev);
dev->ctrl->init(dev);
#ifdef CONFIG_HAS_EARLYSUSPEND
dev->early_suspend.suspend = sprdfb_early_suspend;
dev->early_suspend.resume = sprdfb_late_resume;
dev->early_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB;
register_early_suspend(&dev->early_suspend);
#endif
#ifdef CONFIG_FB_ESD_SUPPORT
pr_debug("sprdfb: Init ESD work queue!\n");
INIT_DELAYED_WORK(&dev->ESD_work, ESD_work_func);
// sema_init(&dev->ESD_lock, 1);
if(SPRDFB_PANEL_IF_DPI == dev->panel_if_type){
dev->ESD_timeout_val = SPRDFB_ESD_TIME_OUT_VIDEO;
}else{
dev->ESD_timeout_val = SPRDFB_ESD_TIME_OUT_CMD;
}
dev->ESD_work_start = false;
dev->check_esd_time = 0;
dev->reset_dsi_time = 0;
dev->panel_reset_time = 0;
#endif
return 0;
cleanup:
sprdfb_panel_remove(dev);
dev->ctrl->uninit(dev);
fb_free_resources(dev);
err0:
dev_err(&pdev->dev, "failed to probe sprdfb\n");
return ret;
}
static int sprdfb_probe(struct platform_device *pdev)
{
struct fb_info *fb = NULL;
struct sprdfb_device *dev = NULL;
int ret = 0;
pr_debug(KERN_INFO "sprdfb:[%s], id = %d\n", __FUNCTION__, pdev->id);
fb = framebuffer_alloc(sizeof(struct sprdfb_device), &pdev->dev);
if (!fb) {
printk(KERN_ERR "sprdfb: sprdfb_probe allocate buffer fail.\n");
ret = -ENOMEM;
goto err0;
}
dev = fb->par;
dev->fb = fb;
dev->dev_id = pdev->id;
if((SPRDFB_MAINLCD_ID != dev->dev_id) &&(SPRDFB_SUBLCD_ID != dev->dev_id)){
printk(KERN_ERR "sprdfb: sprdfb_probe fail. (unsupported device id)\n");
goto err0;
}
switch(SPRDFB_IN_DATA_TYPE){
case SPRD_IN_DATA_TYPE_ABGR888:
dev->bpp = 32;
break;
case SPRD_IN_DATA_TYPE_BGR565:
dev->bpp = 16;
break;
default:
dev->bpp = 32;
break;
}
if(SPRDFB_MAINLCD_ID == dev->dev_id){
dev->ctrl = &sprdfb_dispc_ctrl;
}else{
dev->ctrl = &sprdfb_lcdc_ctrl;
}
if(sprdfb_panel_get(dev)){
dev->panel_ready = true;
}else{
dev->panel_ready = false;
}
dev->ctrl->early_init(dev);
if(!dev->panel_ready){
if (!sprdfb_panel_probe(dev)) {
ret = -EIO;
goto cleanup;
}
}
ret = setup_fb_mem(dev, pdev);
if (ret) {
goto cleanup;
}
setup_fb_info(dev);
dev->ctrl->init(dev);
/* register framebuffer device */
ret = register_framebuffer(fb);
if (ret) {
printk(KERN_ERR "sprdfb: sprdfb_probe register framebuffer fail.\n");
goto cleanup;
}
platform_set_drvdata(pdev, dev);
#ifdef CONFIG_HAS_EARLYSUSPEND
dev->early_suspend.suspend = sprdfb_early_suspend;
dev->early_suspend.resume = sprdfb_late_resume;
dev->early_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB;
register_early_suspend(&dev->early_suspend);
#endif
return 0;
cleanup:
sprdfb_panel_remove(dev);
dev->ctrl->uninit(dev);
fb_free_resources(dev);
err0:
dev_err(&pdev->dev, "failed to probe sprdfb\n");
return ret;
}