>From 0d49d381d6749dc3013527b369c83ef31852ce4c Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Mon, 30 Nov 2009 01:40:24 -0500
Subject: [PATCH] drm/radeon/kms/atom: pull misc mode info for lvds
from bios tables
sync polarity, etc. This will likely fix LVDS problems
on some laptops.
Signed-off-by: Alex Deucher <[email protected]>
---
drivers/gpu/drm/radeon/radeon_atombios.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c
b/drivers/gpu/drm/radeon/radeon_atombios.c
index f0e8e60..604e1cd 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -912,7 +912,7 @@ struct radeon_encoder_atom_dig
*radeon_atombios_get_lvds_info(struct
struct radeon_device *rdev = dev->dev_private;
struct radeon_mode_info *mode_info = &rdev->mode_info;
int index = GetIndexIntoMasterTable(DATA, LVDS_Info);
- uint16_t data_offset;
+ uint16_t data_offset, misc;
union lvds_info *lvds_info;
uint8_t frev, crev;
struct radeon_encoder_atom_dig *lvds = NULL;
@@ -951,6 +951,19 @@ struct radeon_encoder_atom_dig
*radeon_atombios_get_lvds_info(struct
lvds->panel_pwr_delay =
le16_to_cpu(lvds_info->info.usOffDelayInMs);
lvds->lvds_misc = lvds_info->info.ucLVDS_Misc;
+
+ misc =
le16_to_cpu(lvds_info->info.sLCDTiming.susModeMiscInfo.usAccess);
+ if (misc & ATOM_VSYNC_POLARITY)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_NVSYNC;
+ if (misc & ATOM_HSYNC_POLARITY)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_NHSYNC;
+ if (misc & ATOM_COMPOSITESYNC)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_CSYNC;
+ if (misc & ATOM_INTERLACE)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_INTERLACE;
+ if (misc & ATOM_DOUBLE_CLOCK_MODE)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_DBLSCAN;
+
/* set crtc values */
drm_mode_set_crtcinfo(&lvds->native_mode,
CRTC_INTERLACE_HALVE_V);
--
1.5.6.3
From 0d49d381d6749dc3013527b369c83ef31852ce4c Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Mon, 30 Nov 2009 01:40:24 -0500
Subject: [PATCH] drm/radeon/kms/atom: pull misc mode info for lvds from bios tables
sync polarity, etc. This will likely fix LVDS problems
on some laptops.
Signed-off-by: Alex Deucher <[email protected]>
---
drivers/gpu/drm/radeon/radeon_atombios.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index f0e8e60..604e1cd 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -912,7 +912,7 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
struct radeon_device *rdev = dev->dev_private;
struct radeon_mode_info *mode_info = &rdev->mode_info;
int index = GetIndexIntoMasterTable(DATA, LVDS_Info);
- uint16_t data_offset;
+ uint16_t data_offset, misc;
union lvds_info *lvds_info;
uint8_t frev, crev;
struct radeon_encoder_atom_dig *lvds = NULL;
@@ -951,6 +951,19 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
lvds->panel_pwr_delay =
le16_to_cpu(lvds_info->info.usOffDelayInMs);
lvds->lvds_misc = lvds_info->info.ucLVDS_Misc;
+
+ misc = le16_to_cpu(lvds_info->info.sLCDTiming.susModeMiscInfo.usAccess);
+ if (misc & ATOM_VSYNC_POLARITY)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_NVSYNC;
+ if (misc & ATOM_HSYNC_POLARITY)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_NHSYNC;
+ if (misc & ATOM_COMPOSITESYNC)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_CSYNC;
+ if (misc & ATOM_INTERLACE)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_INTERLACE;
+ if (misc & ATOM_DOUBLE_CLOCK_MODE)
+ lvds->native_mode.flags |= DRM_MODE_FLAG_DBLSCAN;
+
/* set crtc values */
drm_mode_set_crtcinfo(&lvds->native_mode, CRTC_INTERLACE_HALVE_V);
--
1.5.6.3
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