From 30bc9f415d9564de90fc0c6c6a92462ce3ce7c06 Mon Sep 17 00:00:00 2001
From: Jiaxin Yu <jiaxin.yu@mediatek.com>
Date: Tue, 23 Apr 2019 20:45:50 +0800
Subject: google/kukui: Support sound in boot process

Configure and enable GPIO for speaker amp max98357a.

BUG=b:117254418
TEST=Build pass and verified on kukui p1 board
BRANCH=None

Change-Id: I97655702dff402245326d2eff71fae0e336df9f5
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32459
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
---
 src/mainboard/google/kukui/mainboard.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/mainboard/google/kukui/mainboard.c')

diff --git a/src/mainboard/google/kukui/mainboard.c b/src/mainboard/google/kukui/mainboard.c
index e1d8f5fb8d..40b8a49c61 100644
--- a/src/mainboard/google/kukui/mainboard.c
+++ b/src/mainboard/google/kukui/mainboard.c
@@ -16,6 +16,7 @@
 #include <device/device.h>
 #include <soc/gpio.h>
 #include <soc/mmu_operations.h>
+#include <soc/mtcmos.h>
 #include <soc/usb.h>
 
 static void configure_emmc(void)
@@ -37,10 +38,22 @@ static void configure_usb(void)
 	setup_usb_host();
 }
 
+static void configure_audio(void)
+{
+	/* Audio PWR*/
+	mtcmos_audio_power_on();
+
+	/* SoC I2S */
+	gpio_set_mode(GPIO(CAM_RST0), PAD_CAM_RST0_FUNC_I2S2_LRCK);
+	gpio_set_mode(GPIO(CAM_PDN1), PAD_CAM_PDN1_FUNC_I2S2_BCK);
+	gpio_set_mode(GPIO(CAM_PDN0), PAD_CAM_PDN0_FUNC_I2S2_MCK);
+	gpio_set_mode(GPIO(EINT3), PAD_EINT3_FUNC_I2S3_DO);
+}
 static void mainboard_init(struct device *dev)
 {
 	configure_emmc();
 	configure_usb();
+	configure_audio();
 }
 
 static void mainboard_enable(struct device *dev)
-- 
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