diff options
| author |   Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2010-09-03 07:20:12 +0000 |
|---|---|---|
| committer |   Paul Mundt <lethal@linux-sh.org> | 2010-09-14 17:22:52 +0900 |
| commit | 71d3b0fcadf70d0de1ad334f48c9a4060209091a (patch) | |
| tree | 8996e60ce3a517797db46c0c0456084b4a78008b /drivers/video/sh_mobile_lcdcfb.c | |
| parent | fbdev: sh_mobile_lcdcfb: fix notifier callback return codes (diff) | |
| download | linux-dev-71d3b0fcadf70d0de1ad334f48c9a4060209091a.tar.xz linux-dev-71d3b0fcadf70d0de1ad334f48c9a4060209091a.zip | |
fbdev: sh_mobile_lcdcfb: allocate memory, sufficient for the biggest mode
Now, that we add support for multiple modes to the sh_mobile_lcdcfb driver, it
has to allocate memory, sufficient for the biggest of them.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/video/sh_mobile_lcdcfb.c')
| -rw-r--r-- | drivers/video/sh_mobile_lcdcfb.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c index 2f6e37ea7906..ddd6c4669bd7 100644 --- a/drivers/video/sh_mobile_lcdcfb.c +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -1103,8 +1103,10 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev) for (i = 0; i < j; i++) { struct fb_var_screeninfo *var; - const struct fb_videomode *lcd_cfg; + const struct fb_videomode *lcd_cfg, *max_cfg = NULL; struct sh_mobile_lcdc_chan *ch = priv->ch + i; + unsigned long max_size = 0; + int k; cfg = &ch->cfg; @@ -1117,9 +1119,8 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev) info = ch->info; var = &info->var; - lcd_cfg = &cfg->lcd_cfg[0]; info->fbops = &sh_mobile_lcdc_ops; - fb_videomode_to_var(var, lcd_cfg); + fb_videomode_to_var(var, &cfg->lcd_cfg[0]); /* Default Y virtual resolution is 2x panel size */ var->yres_virtual = var->yres * 2; @@ -1127,10 +1128,23 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev) if (error) break; + for (k = 0, lcd_cfg = cfg->lcd_cfg; + k < cfg->num_cfg; + k++, lcd_cfg++) { + unsigned long size = lcd_cfg->yres * lcd_cfg->xres; + + if (size > max_size) { + max_cfg = lcd_cfg; + max_size = size; + } + } + + dev_dbg(&pdev->dev, "Found largest videomode %ux%u\n", + max_cfg->xres, max_cfg->yres); + info->fix = sh_mobile_lcdc_fix; - info->fix.line_length = lcd_cfg->xres * (cfg->bpp / 8); - info->fix.smem_len = info->fix.line_length * - var->yres_virtual; + info->fix.line_length = cfg->lcd_cfg[0].xres * (cfg->bpp / 8); + info->fix.smem_len = max_size * (cfg->bpp / 8) * 2; buf = dma_alloc_coherent(&pdev->dev, info->fix.smem_len, &ch->dma_handle, GFP_KERNEL); |