Change in coreboot[master]: Herobrine: sc7280: Add support for audio

[Ravi kumar (Code Review)]

Ravi kumar has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/57449 )

Change subject: Herobrine: sc7280: Add support for audio
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Herobrine: sc7280: Add support for audio

Add gpio configuration for target specific i2s ports

BUG=b:182963902
TEST=Validated on qualcomm sc7280 developement board

Signed-off-by: Srinivasa Rao Mandadapu 
Change-Id: I2ce95332f892d5d4acb2755307df84d37feb8002
---
M src/mainboard/google/herobrine/board.h
M src/mainboard/google/herobrine/chromeos.c
M src/mainboard/google/herobrine/mainboard.c
3 files changed, 18 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/49/57449/1

diff --git a/src/mainboard/google/herobrine/board.h b/src/mainboard/google/herobrine/board.h
index c437651..9ca14a3 100644
--- a/src/mainboard/google/herobrine/board.h
+++ b/src/mainboard/google/herobrine/board.h
@@ -20,6 +20,7 @@

#define GPIO_SD_CD_L	GPIO(91)

+#define GPIO_AMP_ENABLE	GPIO(63)
 #define QCOM_SC7280_SKU1 0x0
 #define QCOM_SC7280_SKU2 0x1
 #define QCOM_SC7280_SKU3 0x3
diff --git a/src/mainboard/google/herobrine/chromeos.c b/src/mainboard/google/herobrine/chromeos.c
index 6237f4f..6857d6e 100644
--- a/src/mainboard/google/herobrine/chromeos.c
+++ b/src/mainboard/google/herobrine/chromeos.c
@@ -11,6 +11,7 @@
    gpio_input_pullup(GPIO_AP_EC_INT);
    gpio_input_pullup(GPIO_SD_CD_L);
    gpio_input_irq(GPIO_H1_AP_INT, IRQ_TYPE_RISING_EDGE, GPIO_PULL_UP);
+	gpio_output(GPIO_AMP_ENABLE, 0);
 }

void fill_lb_gpios(struct lb_gpios *gpios)
@@ -24,6 +25,8 @@
    		"SD card detect"},
    	{GPIO_H1_AP_INT.addr, ACTIVE_HIGH, gpio_get(GPIO_H1_AP_INT),
    		"TPM interrupt"},
+		{GPIO_AMP_ENABLE.addr, ACTIVE_HIGH, gpio_get(GPIO_AMP_ENABLE),
+			"speaker enable"},
    };

lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
diff --git a/src/mainboard/google/herobrine/mainboard.c b/src/mainboard/google/herobrine/mainboard.c
index c1c2a57..e4ea344 100644
--- a/src/mainboard/google/herobrine/mainboard.c
+++ b/src/mainboard/google/herobrine/mainboard.c
@@ -49,6 +49,19 @@
    setup_usb_host0();
 }

+static void qi2s_configure_gpios(void)
+{
+
+	gpio_configure(GPIO(106), GPIO106_FUNC_MI2S1_SCK,
+				GPIO_NO_PULL, GPIO_16MA, GPIO_OUTPUT);
+
+	gpio_configure(GPIO(108), GPIO108_FUNC_MI2S1_WS,
+				GPIO_NO_PULL, GPIO_16MA, GPIO_OUTPUT);
+
+	gpio_configure(GPIO(107), GPIO107_FUNC_MI2S1_DATA0,
+				GPIO_NO_PULL, GPIO_16MA, GPIO_OUTPUT);
+}
+
 static void mainboard_init(struct device *dev)
 {
    /* Configure clock for eMMC */
@@ -82,6 +95,7 @@
    setup_usb();
    /* Set up PCIe in RC mode */
    setup_pcie();
+	qi2s_configure_gpios();
 }

static void mainboard_enable(struct device *dev)