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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-12 17:04:08 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-13 16:05:58 +0000 |
| commit | a76150302d6e7ebc43e1a1ddaee7fd51db8da3b3 (patch) | |
| tree | 18237da2f01fa732d5dfc9c567d17209ca6b418c /drivers/gpu/drm/i915/intel_bios.c | |
| parent | c8303e7f3f3093c16ef0fa5f73280637c89d4368 (diff) | |
| download | linux-stable-a76150302d6e7ebc43e1a1ddaee7fd51db8da3b3.tar.gz linux-stable-a76150302d6e7ebc43e1a1ddaee7fd51db8da3b3.tar.bz2 linux-stable-a76150302d6e7ebc43e1a1ddaee7fd51db8da3b3.zip | |
drm/i915: Add a module option to override the use of SSC
In order to workaround the issue with LVDS not working on the Lenovo
U160 apparently due to using the wrong SSC frequency, add an option to
disable SSC.
Suggested-by: Lukács, Árpád <lukacs.arpad@gmail.com>
Bugzillla: https://bugs.freedesktop.org/show_bug.cgi?id=32748
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index b0b1200ed650..0b44956c336b 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -264,17 +264,12 @@ parse_general_features(struct drm_i915_private *dev_priv, dev_priv->int_crt_support = general->int_crt_support; dev_priv->lvds_use_ssc = general->enable_ssc; - if (dev_priv->lvds_use_ssc) { - if (IS_I85X(dev)) - dev_priv->lvds_ssc_freq = - general->ssc_freq ? 66 : 48; - else if (IS_GEN5(dev) || IS_GEN6(dev)) - dev_priv->lvds_ssc_freq = - general->ssc_freq ? 100 : 120; - else - dev_priv->lvds_ssc_freq = - general->ssc_freq ? 100 : 96; - } + if (IS_I85X(dev)) + dev_priv->lvds_ssc_freq = general->ssc_freq ? 66 : 48; + else if (IS_GEN5(dev) || IS_GEN6(dev)) + dev_priv->lvds_ssc_freq = general->ssc_freq ? 100 : 120; + else + dev_priv->lvds_ssc_freq = general->ssc_freq ? 100 : 96; } } |