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authorVille Syrjälä <ville.syrjala@linux.intel.com>2017-12-08 23:37:36 +0200
committerJani Nikula <jani.nikula@intel.com>2018-01-02 13:45:06 +0200
commit3488d0237f6364614f0c59d6d784bb79b11eeb92 (patch)
tree8654bd9e3d8314a142131c4bb192e2022c19280a /drivers
parente0093a89f2386f12cc87047b43e93c3c6e15e94e (diff)
downloadlinux-3488d0237f6364614f0c59d6d784bb79b11eeb92.tar.bz2
drm/i915: Disable DC states around GMBUS on GLK
Prevent the DMC from destroying GMBUS transfers on GLK. GMBUS lives in PG1 so DC off is all we need. Cc: stable@vger.kernel.org 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/intel_runtime_pm.c1
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 8af286c63d3b..9bf46ab211cb 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 ( \