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authorMichel Dänzer <daenzer@vmware.com>2009-09-15 17:09:27 +0200
committerDave Airlie <airlied@linux.ie>2009-09-16 16:10:19 +1000
commit8dfaa8a7779ad2667d539aca6ae11cd87f562db6 (patch)
treee7decd381bde41c6322b867c75482f9898ecdbfa /drivers/gpu
parentf657c2a7310ad56e2b67f35f4c5c6106a7146b9c (diff)
drm/radeon/kms: Get LVDS native mode details from EDID if necessary.
Fixes RMX problems on older Apple laptops which don't have an x86 BIOS ROM. Signed-off-by: Michel Dänzer <daenzer@vmware.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c12
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c34
2 files changed, 41 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 2a027e00762..cb60f553233 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;
}
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index d2842da8c8b..5ee81b6a879 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -227,6 +227,36 @@ int radeon_connector_set_property(struct drm_connector *connector, struct drm_pr
return 0;
}
+static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct radeon_native_mode *native_mode = &radeon_encoder->native_mode;
+
+ /* Try to get native mode details from EDID if necessary */
+ if (!native_mode->dotclock) {
+ struct drm_display_mode *t, *mode;
+
+ list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
+ if (mode->hdisplay == native_mode->panel_xres &&
+ mode->vdisplay == native_mode->panel_yres) {
+ native_mode->hblank = mode->htotal - mode->hdisplay;
+ native_mode->hoverplus = mode->hsync_start - mode->hdisplay;
+ native_mode->hsync_width = mode->hsync_end - mode->hsync_start;
+ native_mode->vblank = mode->vtotal - mode->vdisplay;
+ native_mode->voverplus = mode->vsync_start - mode->vdisplay;
+ native_mode->vsync_width = mode->vsync_end - mode->vsync_start;
+ native_mode->dotclock = mode->clock;
+ DRM_INFO("Determined LVDS native mode details from EDID\n");
+ break;
+ }
+ }
+ }
+ if (!native_mode->dotclock) {
+ DRM_INFO("No LVDS native mode details, disabling RMX\n");
+ radeon_encoder->rmx_type = RMX_OFF;
+ }
+}
static int radeon_lvds_get_modes(struct drm_connector *connector)
{
@@ -239,9 +269,11 @@ static int radeon_lvds_get_modes(struct drm_connector *connector)
ret = radeon_ddc_get_modes(radeon_connector);
if (ret > 0) {
encoder = radeon_best_single_encoder(connector);
- if (encoder)
+ if (encoder) {
+ radeon_fixup_lvds_native_mode(encoder, connector);
/* add scaled modes */
radeon_add_common_modes(encoder, connector);
+ }
return ret;
}
}