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authorVille Syrjälä <ville.syrjala@linux.intel.com>2017-12-09 00:37:36 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2017-12-22 15:22:48 +0300
commit156961ae7bdf6feb72778e8da83d321b273343fd (patch)
tree8f3c1ef9a0611f831d6fb4b67d54266cf548c791
parent219af7331f37e0e803688f6c5f7d29bc6204e88e (diff)
downloadlinux-156961ae7bdf6feb72778e8da83d321b273343fd.tar.xz
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>
-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 96ab74f3d101..522e0a63090f 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -1792,6 +1792,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
BIT_ULL(POWER_DOMAIN_GT_IRQ) | \
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 ( \