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authorAlex Deucher <alexdeucher@gmail.com>2010-02-02 12:06:28 -0500
committerDave Airlie <airlied@redhat.com>2010-02-09 09:31:22 +1000
commit093972788f009cabf8f8fb726dc5267b60b3d09e (patch)
treed31858dcd64d393fa1150e4e34bd1914f53fa7aa /drivers/gpu/drm/radeon/radeon_atombios.c
parent7c27f87d2bde885e9bcda74c208a7aae8bef8e76 (diff)
drm/radeon/kms: add pll quirk for toshiba laptop panel
The panel on the Toshiba A300-1BU laptop does not like the PLL dividers selected by the avivo pll algo, but works fine using the older method. Add a quirk to handle it. Should fix fdo bug 26358. Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_atombios.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_atombios.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 667f099e84af..d33fb4174b13 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1073,6 +1073,21 @@ static struct radeon_atom_ss *radeon_atombios_get_ss_info(struct
return ss;
}
+static void radeon_atom_apply_lvds_quirks(struct drm_device *dev,
+ struct radeon_encoder_atom_dig *lvds)
+{
+
+ /* Toshiba A300-1BU laptop panel doesn't like new pll divider algo */
+ if ((dev->pdev->device == 0x95c4) &&
+ (dev->pdev->subsystem_vendor == 0x1179) &&
+ (dev->pdev->subsystem_device == 0xff50)) {
+ if ((lvds->native_mode.hdisplay == 1280) &&
+ (lvds->native_mode.vdisplay == 800))
+ lvds->pll_algo = PLL_ALGO_LEGACY;
+ }
+
+}
+
union lvds_info {
struct _ATOM_LVDS_INFO info;
struct _ATOM_LVDS_INFO_V12 info_12;
@@ -1151,6 +1166,9 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
} else
lvds->pll_algo = PLL_ALGO_LEGACY;
+ /* LVDS quirks */
+ radeon_atom_apply_lvds_quirks(dev, lvds);
+
encoder->native_mode = lvds->native_mode;
}
return lvds;