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authorVenkateswarlu Vinjamuri <venkateswarlu.v.vinjamuri@intel.com>2016-09-02 16:07:08 -0700
committerMartin Roth <martinroth@google.com>2016-09-07 18:37:50 +0200
commite52592078e8e5b24b45197ab510236193656f68e (patch)
tree15587d2c4710b969cf48cade8811c0fa8a594cf3 /src/mainboard/google/reef/devicetree.cb
parent587f9cb6ce7ee71ce242d2df47f2cd51f4dac66b (diff)
mainboard/google/reef: Enable audio clock and power gate
Removes S0ix blocker. Sets audio clock gate and power gate bits when audio not in use. Reduces power in S0. Change-Id: Id5c0adc2605480583dc90ee62a706dbfa4027c1b Signed-off-by: Venkateswarlu Vinjamuri <venkateswarlu.v.vinjamuri@intel.com> Reviewed-on: https://review.coreboot.org/16424 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/mainboard/google/reef/devicetree.cb')
-rw-r--r--src/mainboard/google/reef/devicetree.cb5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/devicetree.cb b/src/mainboard/google/reef/devicetree.cb
index 9a7c2d17b3..2ac20de2dc 100644
--- a/src/mainboard/google/reef/devicetree.cb
+++ b/src/mainboard/google/reef/devicetree.cb
@@ -38,6 +38,11 @@ chip soc/intel/apollolake
# Enable DPTF
register "dptf_enable" = "1"
+ # Enable Audio Clock and Power gating
+ register "hdaudio_clk_gate_enable" = "1"
+ register "hdaudio_pwr_gate_enable" = "1"
+ register "hdaudio_bios_config_lockdown" = "1"
+
# GPE configuration
# Note that GPE events called out in ASL code rely on this
# route, i.e., if this route changes then the affected GPE