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i915: revert some checks added by commit 32aad86f

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This fixes blur-like screen corruption on the following card:

VGA compatible controller [0300]: Intel Corporation 82G33/G31 Express
Integrated Graphics Controller [8086:29c2] (rev 10)

intel_sdvo_mode_set() should not return prematurely just because some
features are not supported.

https://bugzilla.kernel.org/show_bug.cgi?id=17151

Signed-off-by: Pavel Roskin <proski@gnu.org>
Reported-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[ickle: Relax a couple more checks for failing LVDS modesetting]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Pavel Roskin 2010-09-02 14:46:34 -04:00 committed by Chris Wilson
parent 1dfd9754cd
commit c74696b9c8
1 changed files with 13 additions and 16 deletions
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25
drivers/gpu/drm/i915/intel_sdvo.c
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@ -1061,8 +1061,9 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
return false;
if (!intel_sdvo_set_input_timings_for_mode(intel_sdvo, mode, adjusted_mode))
return false;
(void) intel_sdvo_set_input_timings_for_mode(intel_sdvo,
mode,
adjusted_mode);
} else if (intel_sdvo->is_lvds) {
drm_mode_set_crtcinfo(intel_sdvo->sdvo_lvds_fixed_mode, 0);
@ -1070,8 +1071,9 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
intel_sdvo->sdvo_lvds_fixed_mode))
return false;
if (!intel_sdvo_set_input_timings_for_mode(intel_sdvo, mode, adjusted_mode))
return false;
(void) intel_sdvo_set_input_timings_for_mode(intel_sdvo,
mode,
adjusted_mode);
}
/* Make the CRTC code factor in the SDVO pixel multiplier. The
@ -1108,10 +1110,9 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
in_out.in0 = intel_sdvo->attached_output;
in_out.in1 = 0;
if (!intel_sdvo_set_value(intel_sdvo,
intel_sdvo_set_value(intel_sdvo,
SDVO_CMD_SET_IN_OUT_MAP,
&in_out, sizeof(in_out)))
return;
&in_out, sizeof(in_out));
if (intel_sdvo->is_hdmi) {
if (!intel_sdvo_set_avi_infoframe(intel_sdvo, mode))
@ -1122,11 +1123,9 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
/* We have tried to get input timing in mode_fixup, and filled into
adjusted_mode */
if (intel_sdvo->is_tv || intel_sdvo->is_lvds) {
intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
input_dtd.part2.sdvo_flags = intel_sdvo->sdvo_flags;
} else
intel_sdvo_get_dtd_from_mode(&input_dtd, mode);
/* If it's a TV, we already set the output timing in mode_fixup.
* Otherwise, the output timing is equal to the input timing.
@ -1137,8 +1136,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
intel_sdvo->attached_output))
return;
if (!intel_sdvo_set_output_timing(intel_sdvo, &input_dtd))
return;
(void) intel_sdvo_set_output_timing(intel_sdvo, &input_dtd);
}
/* Set the input timing to the screen. Assume always input 0. */
@ -1165,8 +1163,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
intel_sdvo_set_input_timing(encoder, &input_dtd);
}
#else
if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
return;
(void) intel_sdvo_set_input_timing(intel_sdvo, &input_dtd);
#endif
sdvo_pixel_multiply = intel_sdvo_get_pixel_multiplier(mode);