projects / ipfire-2.x.git / blame
| Commit | Line | Data |
|---|---|---|
| 2cb7cef9 BS |
1 | Subject: [PATCH] Add quirk for the graphics adapter in some JSxx |
| 2 | From: Tony Breeds <tony@bakeyournoodle.com> | |
| 3 | References: 461002 - LTC50817 | |
| 4 | ||
| 5 | These devices are set to 640x480 by firmware, switch them to | |
| 6 | 800x600@60. | |
| 7 | ||
| 8 | Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> | |
| 9 | Signed-off-by: Olaf Hering <olh@suse.de> | |
| 10 | --- | |
| 11 | drivers/video/aty/radeon_monitor.c | 35 +++++++++++++++++++++++++++++++++++ | |
| 12 | 1 file changed, 35 insertions(+) | |
| 13 | ||
| 14 | --- a/drivers/video/aty/radeon_monitor.c | |
| 15 | +++ b/drivers/video/aty/radeon_monitor.c | |
| 16 | @@ -727,6 +727,25 @@ static void radeon_videomode_to_var(stru | |
| 17 | var->vmode = mode->vmode; | |
| 18 | } | |
| 19 | ||
| 20 | +#ifdef CONFIG_PPC_PSERIES | |
| 21 | +static int is_powerblade(const char *model) | |
| 22 | +{ | |
| 23 | + struct device_node *root; | |
| 24 | + const char* cp; | |
| 25 | + int len, l, rc = 0; | |
| 26 | + | |
| 27 | + root = of_find_node_by_path("/"); | |
| 28 | + if (root && model) { | |
| 29 | + l = strlen(model); | |
| 30 | + cp = of_get_property(root, "model", &len); | |
| 31 | + if (cp) | |
| 32 | + rc = memcmp(model, cp, min(len, l)) == 0; | |
| 33 | + of_node_put(root); | |
| 34 | + } | |
| 35 | + return rc; | |
| 36 | +} | |
| 37 | +#endif | |
| 38 | + | |
| 39 | /* | |
| 40 | * Build the modedb for head 1 (head 2 will come later), check panel infos | |
| 41 | * from either BIOS or EDID, and pick up the default mode | |
| 42 | @@ -862,6 +881,22 @@ void __devinit radeon_check_modes(struct | |
| 43 | has_default_mode = 1; | |
| 44 | } | |
| 45 | ||
| 46 | +#ifdef CONFIG_PPC_PSERIES | |
| 47 | + if (!has_default_mode && ( | |
| 48 | + is_powerblade("IBM,8842") || /* JS20 */ | |
| 49 | + is_powerblade("IBM,8844") || /* JS21 */ | |
| 50 | + is_powerblade("IBM,7998") || /* JS12/JS21/JS22 */ | |
| 51 | + is_powerblade("IBM,0792") || /* QS21 */ | |
| 52 | + is_powerblade("IBM,0793") /* QS22 */ | |
| 53 | + )) { | |
| 54 | + printk("Falling back to 800x600 on JSxx hardware\n"); | |
| 55 | + if (fb_find_mode(&info->var, info, "800x600@60", | |
| 56 | + info->monspecs.modedb, | |
| 57 | + info->monspecs.modedb_len, NULL, 8) != 0) | |
| 58 | + has_default_mode = 1; | |
| 59 | + } | |
| 60 | +#endif | |
| 61 | + | |
| 62 | /* | |
| 63 | * Still no mode, let's pick up a default from the db | |
| 64 | */ |