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[21/59] drm/i915/cnl: Remove spurious central_freq.

Message ID 20180328153109.17126-22-tjaalton@ubuntu.com
State New
Headers show
Series drm/i915: Add support for Cannonlake (CNL) | expand

Commit Message

Timo Aaltonen March 28, 2018, 3:30 p.m. UTC 
From: Rodrigo Vivi <rodrigo.vivi@intel.com>

BugLink: http://bugs.launchpad.net/bugs/1757573

"Display software must leave this field at the default value.
It no longer needs to be configured as part of PLL programming."

We respect this already and we are setting up the default
one line below: "DPLL_CFGCR1_CENTRAL_FREQ".

Also we don't touch anywhere else this central_freq for cnl.
So let's remove from the final write.

No functional change. Only a clean-up patch.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171114194759.24541-2-rodrigo.vivi@intel.com
(cherry picked from commit ec2f343e720eca5ec7015b4d2b5fc2703604835e)
Signed-off-by: Timo Aaltonen <timo.aaltonen@canonical.com>
---
 drivers/gpu/drm/i915/intel_dpll_mgr.c | 1 -
 1 file changed, 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index 897fffe1ecd8..c7b2db10f006 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
@@ -2281,7 +2281,6 @@  static bool cnl_ddi_hdmi_pll_dividers(struct intel_crtc *crtc,
 		DPLL_CFGCR1_QDIV_MODE(wrpll_params.qdiv_mode) |
 		DPLL_CFGCR1_KDIV(wrpll_params.kdiv) |
 		DPLL_CFGCR1_PDIV(wrpll_params.pdiv) |
-		wrpll_params.central_freq |
 		DPLL_CFGCR1_CENTRAL_FREQ;
 
 	memset(&crtc_state->dpll_hw_state, 0,