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authorLee, Shawn C <shawn.c.lee@intel.com>2017-02-03 12:32:09 +0800
committerJani Nikula <jani.nikula@intel.com>2017-02-03 14:44:21 +0200
commit0aab2c721d81590012a5021a516f00666646741f (patch)
tree55d25dc2a6d05551ccb73d3f6cc8cc78db8fa8c8
parente32e836afe39691848270f1ac2a9d0e09ad173fd (diff)
downloadop-kernel-dev-0aab2c721d81590012a5021a516f00666646741f.zip
op-kernel-dev-0aab2c721d81590012a5021a516f00666646741f.tar.gz
drm/i915/bxt: Add MST support when do DPLL calculation
Add the missing INTEL_OUTPUT_DP_MST case in bxt_get_dpll() to correctly initialize the crtc_state and port plls when link training a DP MST monitor on BXT/APL devices. Fixes: a277ca7dc01d ("drm/i915: Split bxt_ddi_pll_select()") Bugs: https://bugs.freedesktop.org/show_bug.cgi?id=99572 Reviewed-by: Cooper Chiou <cooper.chiou@intel.com> Reviewed-by: Gary C Wang <gary.c.wang@intel.com> Reviewed-by: Ciobanu, Nathan D <nathan.d.ciobanu@intel.com> Reviewed-by: Herbert, Marc <marc.herbert@intel.com> Reviewed-by: Bride, Jim <jim.bride@intel.com> Reviewed-by: Navare, Manasi D <manasi.d.navare@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: <stable@vger.kernel.org> # v4.9+ Signed-off-by: Lee, Shawn C <shawn.c.lee@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1486096329-6255-1-git-send-email-shawn.c.lee@intel.com
-rw-r--r--drivers/gpu/drm/i915/intel_dpll_mgr.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index 368eff9..79f656c 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
@@ -1855,7 +1855,8 @@ bxt_get_dpll(struct intel_crtc *crtc,
return NULL;
if ((encoder->type == INTEL_OUTPUT_DP ||
- encoder->type == INTEL_OUTPUT_EDP) &&
+ encoder->type == INTEL_OUTPUT_EDP ||
+ encoder->type == INTEL_OUTPUT_DP_MST) &&
!bxt_ddi_dp_set_dpll_hw_state(clock, &dpll_hw_state))
return NULL;
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