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video: tegra: allow setting output mode without changing fb geometry

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Change-Id: I0a723b4e68c99d2727e12d2c26f1506b1f634f8a
Signed-off-by: Erik Gilling <konkers@android.com>
This commit is contained in:
Erik Gilling
2010-10-26 15:21:23 -07:00
parent 185ddab215
commit 06d191b17b
1 changed files with 27 additions and 28 deletions
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55
drivers/video/tegra/fb.c
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@@ -120,36 +120,35 @@ static int tegra_fb_set_par(struct fb_info *info)
struct tegra_fb_info *tegra_fb = info->par;
struct fb_var_screeninfo *var = &info->var;
/* we only support RGB ordering for now */
switch (var->bits_per_pixel) {
case 32:
case 24:
var->red.offset = 0;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 16;
var->blue.length = 8;
tegra_fb->win->fmt = TEGRA_WIN_FMT_R8G8B8A8;
break;
case 16:
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 5;
tegra_fb->win->fmt = TEGRA_WIN_FMT_B5G6R5;
break;
if (var->bits_per_pixel) {
/* we only support RGB ordering for now */
switch (var->bits_per_pixel) {
case 32:
case 24:
var->red.offset = 0;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 16;
var->blue.length = 8;
tegra_fb->win->fmt = TEGRA_WIN_FMT_R8G8B8A8;
break;
case 16:
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 5;
tegra_fb->win->fmt = TEGRA_WIN_FMT_B5G6R5;
break;
case 0:
break;
default:
return -EINVAL;
default:
return -EINVAL;
}
info->fix.line_length = var->xres * var->bits_per_pixel / 8;
tegra_fb->win->stride = info->fix.line_length;
}
info->fix.line_length = var->xres * var->bits_per_pixel / 8;
tegra_fb->win->stride = info->fix.line_length;
if (var->pixclock) {
struct tegra_dc_mode mode;