Attachment 31571 Details for Bug 25336 – pull in lvds misc mode info

[patch] pull in lvds misc mode info

0001-drm-radeon-kms-atom-pull-misc-mode-info-for-lvds-fr.patch (text/plain), 1.91 KB, created by Alex Deucher on 2009-11-29 23:16:13 UTC

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Creator: Alex Deucher

Created: 2009-11-29 23:16:13 UTC

Size: 1.91 KB

patch

obsolete

>From 0d49d381d6749dc3013527b369c83ef31852ce4c Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexdeucher@gmail.com>
>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 <alexdeucher@gmail.com>
>---
> 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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