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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-07-21 02:44:45 +0400 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-18 18:46:19 +0400 |
| commit | f899fc64cda8569d0529452aafc0da31c042df2e (patch) | |
| tree | 61b6d32abe3524b83abc9d8b9382e3f82225cd64 /drivers/gpu/drm/i915/i915_suspend.c | |
| parent | 373a3cf744c774478f44921c50011b896ab08f9d (diff) | |
| download | linux-f899fc64cda8569d0529452aafc0da31c042df2e.tar.xz | |
drm/i915: use GMBUS to manage i2c links
Use the GMBUS interface rather than direct bit banging to grab the EDID
over DDC (and for other forms of auxiliary communication with external
display controllers). The hope is that this method will be much faster
and more reliable than bit banging for fetching EDIDs from buggy monitors
or through switches, though we still preserve the bit banging as a
fallback in case GMBUS fails.
Based on an original patch by Jesse Barnes.
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_suspend.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_suspend.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 2c6b98f2440e..5c0de6501828 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -860,9 +860,7 @@ int i915_restore_state(struct drm_device *dev) for (i = 0; i < 3; i++) I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]); - /* I2C state */ - intel_i2c_reset_gmbus(dev); + intel_i2c_reset(dev); return 0; } - |