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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-12-09 00:37:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-10 11:31:19 +0300 |
| commit | 5d8c39173bd71ed53ae88de77a8ec94f30b69919 (patch) | |
| tree | 3317b7214b9dc6caa52d119dd7ecb8c46d15c089 /drivers/gpu/drm/i915 | |
| parent | d4f9aaeb26d024f2f239b19a68d3e339628e1066 (diff) | |
| download | linux-5d8c39173bd71ed53ae88de77a8ec94f30b69919.tar.xz | |
drm/i915: Disable DC states around GMBUS on GLK
commit 3488d0237f6364614f0c59d6d784bb79b11eeb92 upstream.
Prevent the DMC from destroying GMBUS transfers on GLK. GMBUS
lives in PG1 so DC off is all we need.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171208213739.16388-1-ville.syrjala@linux.intel.com
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
(cherry picked from commit 156961ae7bdf6feb72778e8da83d321b273343fd)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_runtime_pm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 49577eba8e7e..6e774b2673b4 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -1786,6 +1786,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv, GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS | \ BIT_ULL(POWER_DOMAIN_MODESET) | \ BIT_ULL(POWER_DOMAIN_AUX_A) | \ + BIT_ULL(POWER_DOMAIN_GMBUS) | \ BIT_ULL(POWER_DOMAIN_INIT)) #define CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \ |