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Date: Mon, 17 Jun 2013 10:30:51 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Egbert Eich <eich@...e.de>, Daniel Vetter <daniel.vetter@...ll.ch>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 47/84] drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC. 3.8.13.3 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Egbert Eich <eich@...e.de> commit 53d3b4d7778daf15900867336c85d3f8dd70600c upstream. In intel_sdvo_get_lvds_modes() the wrong i2c adapter record is used for DDC. Thus the code will always have to rely on a LVDS panel mode supplied by VBT. In most cases this succeeds, so this didn't get detected for quite a while. This regression seems to have been introduced in commit f899fc64cda8569d0529452aafc0da31c042df2e Author: Chris Wilson <chris@...is-wilson.co.uk> Date: Tue Jul 20 15:44:45 2010 -0700 drm/i915: use GMBUS to manage i2c links Signed-off-by: Egbert Eich <eich@...e.de> Reviewed-by: Chris Wilson <chris@...is-wilson.co.uk> [danvet: Add note about which commit likely introduced this issue.] Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- drivers/gpu/drm/i915/intel_sdvo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 506c331..601dc05 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1745,7 +1745,7 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector) * Assume that the preferred modes are * arranged in priority order. */ - intel_ddc_get_modes(connector, intel_sdvo->i2c); + intel_ddc_get_modes(connector, &intel_sdvo->ddc); if (list_empty(&connector->probed_modes) == false) goto end; -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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