diff options
| author | Ben Zhang <benzh@chromium.org> | 2014-11-21 11:17:53 -0800 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-04-10 20:19:59 +0200 |
| commit | 99e952d480ec9c1a874556f3b3681c6342c29f4b (patch) | |
| tree | 2cfc7e8dfc0ec48d091e6078048e9acc7583894b /src/mainboard/google/samus | |
| parent | ba9b7bfc6f4b6622fa2d272faeb32b7135287ee6 (diff) | |
| download | coreboot-99e952d480ec9c1a874556f3b3681c6342c29f4b.tar.xz | |
samus: Set MICBIAS1 to 2.970V
The default micbias1 voltage is 1.476V (1.8V * 0.82) which does
not match what's specified on the schematic. This patch sets
the voltage to 2.970V (3.3V * 0.90) according to the schematic.
BUG=chrome-os-partner:32953
BRANCH=samus
TEST=Set MICBIAS to 2.970V on Samus and verified with a scope
Change-Id: I1ced834a5afe2de3fccf4bcff8ec9c8e5718f60a
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 176f9272801a3de5ed6fc05ade06042e2a2c0a5c
Original-Change-Id: Icdbc1b5f65fe28591d54544372bdc2dacb50e9c1
Original-Signed-off-by: Ben Zhang <benzh@chromium.org>
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/241178
Reviewed-on: http://review.coreboot.org/9499
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/mainboard/google/samus')
| -rw-r--r-- | src/mainboard/google/samus/acpi/mainboard.asl | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/samus/acpi/mainboard.asl b/src/mainboard/google/samus/acpi/mainboard.asl index 2edc5a590a..4d905f5c90 100644 --- a/src/mainboard/google/samus/acpi/mainboard.asl +++ b/src/mainboard/google/samus/acpi/mainboard.asl @@ -169,6 +169,7 @@ Scope (\_SB.PCI0.I2C0) Name (_UID, 1) Name (WAKE, 45) /* DSP_INT (use as codec wake) */ + Name (MB1, 1) /* MICBIAS1 = 2.970V */ Name (DCLK, 0) /* RT5677_DMIC_CLK1 */ Name (PCLK, 1) /* RT5677_PDM_CLK_DIV2 (~3MHz) */ Name (IN1, 1) /* IN1 differential */ @@ -185,6 +186,7 @@ Scope (\_SB.PCI0.I2C0) Name (_DSD, Package () { ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), Package () { + Package () { "realtek,micbias1", 1 }, Package () { "realtek,in1-differential", 1 }, Package () { "realtek,in2-differential", 0 }, Package () { "realtek,lout1-differential", 1 }, |