diff options
author | Chon Ming Lee <chon.ming.lee@intel.com> | 2013-11-07 15:23:26 +0800 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-11-07 15:19:23 +0100 |
commit | 2325991e021fb0da21d8d08009d1eea78133745a (patch) | |
tree | a0f94e297b835714d6e8141da96a6630077b1008 | |
parent | 8245be31391974dc756a21cf2f2e25c7f53637c5 (diff) |
drm/i915/vlv: Workaround a punit issue in DDR data rate for 1333.
For DDR data rate reporting by Punit in PUNIT_GPU_FREQ_STS, the actual
data encoding is 00b=800, 01b=1066, 10b=1333, 11b=1333.
Some premium VLV sku will get the DDR_DATA_RATE set as 11. As a result,
the turbo frequency reporting will be incorrect without this workaround.
Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index f5bb9b34948..38943f8ef26 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5322,12 +5322,7 @@ static void valleyview_init_clock_gating(struct drm_device *dev) dev_priv->mem_freq = 1333; break; case 3: - /* - * Probably a BIOS/Punit bug, or a new platform we don't - * support yet. - */ - WARN(1, "invalid DDR freq detected, assuming 800MHz\n"); - dev_priv->mem_freq = 800; + dev_priv->mem_freq = 1333; break; } DRM_DEBUG_DRIVER("DDR speed: %d MHz", dev_priv->mem_freq); |