[coreboot-gerrit] New patch to review for coreboot: 4468981 ryu: audio: Enable RT5677 audio codec

[Patrick Georgi (pgeorgi@google.com)]

Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/9419

-gerrit

commit 44689815ae17cbf48847c445e86c895cb59a435f
Author: Tom Warren <twarren at nvidia.com>
Date:   Mon Nov 10 09:29:32 2014 -0700

    ryu: audio: Enable RT5677 audio codec
    
    Take codec out of reset (GPIO_PH1 aka CODEC_RST_L) and enable LDO2
    (GPIO_PR2/KB_ROW2 aka AUDIO_ENABLE). Muxes are setup and the two
    GPIOs are set to output and driven high.
    
    BUG=chrome-os-partner:32582
    BRANCH=none
    TEST=RealTek ALC5677 codec shows up in I2C6 scan at address 0x2D,
    can read/write registers.
    
    Change-Id: I236850452d401fd89b4f59eb03f132c0be32fb20
    Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
    Original-Commit-Id: 4fe3b0c1a3f5d6264b83d7a7e2363dc3f3235cbf
    Original-Change-Id: Iedce7bb9f8e61d3b8cd693fc5e567323d89f8046
    Original-Signed-off-by: Tom Warren <twarren at nvidia.com>
    Original-Reviewed-on: https://chromium-review.googlesource.com/228920
    Original-Reviewed-by: Aaron Durbin <adurbin at chromium.org>
---
 src/mainboard/google/rush_ryu/mainboard.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/mainboard/google/rush_ryu/mainboard.c b/src/mainboard/google/rush_ryu/mainboard.c
index 1af7e22..0f98229 100644
--- a/src/mainboard/google/rush_ryu/mainboard.c
+++ b/src/mainboard/google/rush_ryu/mainboard.c
@@ -42,11 +42,17 @@ static const struct pad_config mmcpads[] = {
 	PAD_CFG_SFIO(SDMMC4_DAT7, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4),
 };
 
+static const struct pad_config audio_codec_pads[] = {
+	/* H1 is CODEC_RST_L and R2(ROW2) is AUDIO_ENABLE */
+        PAD_CFG_GPIO_OUT1(GPIO_PH1, PINMUX_PULL_DOWN),
+        PAD_CFG_GPIO_OUT1(KB_ROW2, PINMUX_PULL_DOWN),
+};
+
 static const struct funit_cfg funits[] = {
 	/* MMC on SDMMC4 controller at 48MHz. */
 	FUNIT_CFG(SDMMC4, PLLP, 48000, mmcpads, ARRAY_SIZE(mmcpads)),
-	/* I2C6 for audio, temp sensor, etc. */
-	FUNIT_CFG(I2C6, PLLP, 400, NULL, 0),
+	/* I2C6 for audio, temp sensor, etc. Enable codec via GPIOs/muxes */
+	FUNIT_CFG(I2C6, PLLP, 400, audio_codec_pads, ARRAY_SIZE(audio_codec_pads)),
 	FUNIT_CFG_USB(USBD),
 };