diff options
Diffstat (limited to 'drivers/video/vt8500lcdfb.c')
| -rw-r--r-- | drivers/video/vt8500lcdfb.c | 53 |
1 files changed, 20 insertions, 33 deletions
diff --git a/drivers/video/vt8500lcdfb.c b/drivers/video/vt8500lcdfb.c index 2ff2312..9547e18 100644 --- a/drivers/video/vt8500lcdfb.c +++ b/drivers/video/vt8500lcdfb.c @@ -15,20 +15,21 @@ * GNU General Public License for more details. */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/slab.h> #include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/errno.h> #include <linux/fb.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> -#include <linux/dma-mapping.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/module.h> #include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/string.h> #include <linux/wait.h> +#include <video/of_display_timing.h> #include "vt8500lcdfb.h" #include "wmt_ge_rops.h" @@ -275,11 +276,11 @@ static int vt8500lcd_probe(struct platform_device *pdev) { struct vt8500lcd_info *fbi; struct resource *res; + struct display_timings *disp_timing; void *addr; int irq, ret; struct fb_videomode of_mode; - struct device_node *np; u32 bpp; dma_addr_t fb_mem_phys; unsigned long fb_mem_len; @@ -344,32 +345,18 @@ static int vt8500lcd_probe(struct platform_device *pdev) goto failed_free_res; } - np = of_parse_phandle(pdev->dev.of_node, "default-mode", 0); - if (!np) { - pr_err("%s: No display description in Device Tree\n", __func__); - ret = -EINVAL; - goto failed_free_res; - } + disp_timing = of_get_display_timings(pdev->dev.of_node); + if (!disp_timing) + return -EINVAL; - /* - * This code is copied from Sascha Hauer's of_videomode helper - * and can be replaced with a call to the helper once mainlined - */ - ret = 0; - ret |= of_property_read_u32(np, "hactive", &of_mode.xres); - ret |= of_property_read_u32(np, "vactive", &of_mode.yres); - ret |= of_property_read_u32(np, "hback-porch", &of_mode.left_margin); - ret |= of_property_read_u32(np, "hfront-porch", &of_mode.right_margin); - ret |= of_property_read_u32(np, "hsync-len", &of_mode.hsync_len); - ret |= of_property_read_u32(np, "vback-porch", &of_mode.upper_margin); - ret |= of_property_read_u32(np, "vfront-porch", &of_mode.lower_margin); - ret |= of_property_read_u32(np, "vsync-len", &of_mode.vsync_len); - ret |= of_property_read_u32(np, "bpp", &bpp); - if (ret) { - pr_err("%s: Unable to read display properties\n", __func__); - goto failed_free_res; - } - of_mode.vmode = FB_VMODE_NONINTERLACED; + ret = of_get_fb_videomode(pdev->dev.of_node, &of_mode, + OF_USE_NATIVE_MODE); + if (ret) + return ret; + + ret = of_property_read_u32(pdev->dev.of_node, "bits-per-pixel", &bpp); + if (ret) + return ret; /* try allocating the framebuffer */ fb_mem_len = of_mode.xres * of_mode.yres * 2 * (bpp / 8); |
