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-rw-r--r--drivers/video/aty/atyfb_base.c58
1 files changed, 44 insertions, 14 deletions
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 5e4523ae85b..08edbfcfca5 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2156,11 +2156,38 @@ static void __init aty_calc_mem_refresh(struct atyfb_par *par, int xclk)
static struct fb_info *fb_list = NULL;
+#if defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD)
+static int __devinit atyfb_get_timings_from_lcd(struct atyfb_par *par,
+ struct fb_var_screeninfo *var)
+{
+ int ret = -EINVAL;
+
+ if (par->lcd_table != 0 && (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
+ *var = default_var;
+ var->xres = var->xres_virtual = par->lcd_hdisp;
+ var->right_margin = par->lcd_right_margin;
+ var->left_margin = par->lcd_hblank_len -
+ (par->lcd_right_margin + par->lcd_hsync_dly +
+ par->lcd_hsync_len);
+ var->hsync_len = par->lcd_hsync_len + par->lcd_hsync_dly;
+ var->yres = var->yres_virtual = par->lcd_vdisp;
+ var->lower_margin = par->lcd_lower_margin;
+ var->upper_margin = par->lcd_vblank_len -
+ (par->lcd_lower_margin + par->lcd_vsync_len);
+ var->vsync_len = par->lcd_vsync_len;
+ var->pixclock = par->lcd_pixclock;
+ ret = 0;
+ }
+
+ return ret;
+}
+#endif /* defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD) */
+
static int __init aty_init(struct fb_info *info, const char *name)
{
struct atyfb_par *par = (struct atyfb_par *) info->par;
const char *ramname = NULL, *xtal;
- int gtb_memsize;
+ int gtb_memsize, has_var = 0;
struct fb_var_screeninfo var;
u8 pll_ref_div;
u32 i;
@@ -2468,8 +2495,8 @@ static int __init aty_init(struct fb_info *info, const char *name)
* applies to all Mac video cards
*/
if (mode) {
- if (!mac_find_mode(&var, info, mode, 8))
- var = default_var;
+ if (mac_find_mode(&var, info, mode, 8))
+ has_var = 1;
} else {
if (default_vmode == VMODE_CHOOSE) {
if (M64_HAS(G3_PB_1024x768))
@@ -2491,20 +2518,23 @@ static int __init aty_init(struct fb_info *info, const char *name)
default_vmode = VMODE_640_480_60;
if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
default_cmode = CMODE_8;
- if (mac_vmode_to_var(default_vmode, default_cmode, &var))
- var = default_var;
+ if (!mac_vmode_to_var(default_vmode, default_cmode,
+ &var))
+ has_var = 1;
}
- } else
+ }
+
#endif /* !CONFIG_PPC */
- if (
-#if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64)
- /* On Sparc, unless the user gave a specific mode
- * specification, use the PROM probed values in
- * default_var.
- */
- !mode ||
+
+#if defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD)
+ if (!atyfb_get_timings_from_lcd(par, &var))
+ has_var = 1;
#endif
- !fb_find_mode(&var, info, mode, NULL, 0, &defmode, 8))
+
+ if (mode && fb_find_mode(&var, info, mode, NULL, 0, &defmode, 8))
+ has_var = 1;
+
+ if (!has_var)
var = default_var;
if (noaccel)