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path: root/drivers/gpu/drm/radeon/radeon_combios.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_combios.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c58
1 files changed, 34 insertions, 24 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 2a027e00762a..748265a105b3 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -863,8 +863,10 @@ struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
int tmp, i;
struct radeon_encoder_lvds *lvds = NULL;
- if (rdev->bios == NULL)
- return radeon_legacy_get_lvds_info_from_regs(rdev);
+ if (rdev->bios == NULL) {
+ lvds = radeon_legacy_get_lvds_info_from_regs(rdev);
+ goto out;
+ }
lcd_info = combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);
@@ -965,11 +967,13 @@ struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
lvds->native_mode.flags = 0;
}
}
- encoder->native_mode = lvds->native_mode;
} else {
DRM_INFO("No panel info found in BIOS\n");
- return radeon_legacy_get_lvds_info_from_regs(rdev);
+ lvds = radeon_legacy_get_lvds_info_from_regs(rdev);
}
+out:
+ if (lvds)
+ encoder->native_mode = lvds->native_mode;
return lvds;
}
@@ -994,48 +998,37 @@ static const struct radeon_tmds_pll default_tmds_pll[CHIP_LAST][4] = {
{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}}, /* CHIP_RS480 */
};
-static struct radeon_encoder_int_tmds
- *radeon_legacy_get_tmds_info_from_table(struct radeon_device *rdev)
+bool radeon_legacy_get_tmds_info_from_table(struct radeon_encoder *encoder,
+ struct radeon_encoder_int_tmds *tmds)
{
+ struct drm_device *dev = encoder->base.dev;
+ struct radeon_device *rdev = dev->dev_private;
int i;
- struct radeon_encoder_int_tmds *tmds = NULL;
-
- tmds = kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
-
- if (!tmds)
- return NULL;
for (i = 0; i < 4; i++) {
tmds->tmds_pll[i].value =
- default_tmds_pll[rdev->family][i].value;
+ default_tmds_pll[rdev->family][i].value;
tmds->tmds_pll[i].freq = default_tmds_pll[rdev->family][i].freq;
}
- return tmds;
+ return true;
}
-struct radeon_encoder_int_tmds *radeon_combios_get_tmds_info(struct
- radeon_encoder
- *encoder)
+bool radeon_legacy_get_tmds_info_from_combios(struct radeon_encoder *encoder,
+ struct radeon_encoder_int_tmds *tmds)
{
struct drm_device *dev = encoder->base.dev;
struct radeon_device *rdev = dev->dev_private;
uint16_t tmds_info;
int i, n;
uint8_t ver;
- struct radeon_encoder_int_tmds *tmds = NULL;
if (rdev->bios == NULL)
- return radeon_legacy_get_tmds_info_from_table(rdev);
+ return false;
tmds_info = combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);
if (tmds_info) {
- tmds =
- kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
-
- if (!tmds)
- return NULL;
ver = RBIOS8(tmds_info);
DRM_INFO("DFP table revision: %d\n", ver);
@@ -1073,6 +1066,23 @@ struct radeon_encoder_int_tmds *radeon_combios_get_tmds_info(struct
}
} else
DRM_INFO("No TMDS info found in BIOS\n");
+ return true;
+}
+
+struct radeon_encoder_int_tmds *radeon_combios_get_tmds_info(struct radeon_encoder *encoder)
+{
+ struct radeon_encoder_int_tmds *tmds = NULL;
+ bool ret;
+
+ tmds = kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
+
+ if (!tmds)
+ return NULL;
+
+ ret = radeon_legacy_get_tmds_info_from_combios(encoder, tmds);
+ if (ret == false)
+ radeon_legacy_get_tmds_info_from_table(encoder, tmds);
+
return tmds;
}