[coreboot-gerrit] Change in ...coreboot[master]: google/kukui: Support sound in boot process

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change and it was merged. ( https://review.coreboot.org/c/coreboot/+/32459 )

Change subject: google/kukui: Support sound in boot process
......................................................................

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 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32459
Tested-by: build bot (Jenkins) 
Reviewed-by: Julius Werner 
---
M src/mainboard/google/kukui/chromeos.c
M src/mainboard/google/kukui/gpio.h
M src/mainboard/google/kukui/mainboard.c
3 files changed, 16 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Julius Werner: Looks good to me, approved

diff --git a/src/mainboard/google/kukui/chromeos.c b/src/mainboard/google/kukui/chromeos.c
index 44e75e2..3539501 100644
--- a/src/mainboard/google/kukui/chromeos.c
+++ b/src/mainboard/google/kukui/chromeos.c
@@ -27,6 +27,7 @@
    gpio_input_pullup(EC_IRQ);
    gpio_input_pullup(CR50_IRQ);
    gpio_output(GPIO_RESET, 0);
+	gpio_output(GPIO_EN_SPK_AMP, 0);
 }

void fill_lb_gpios(struct lb_gpios *gpios)
@@ -38,6 +39,7 @@
    	{EC_IN_RW.id, ACTIVE_HIGH, -1, "EC in RW"},
    	{EC_IRQ.id, ACTIVE_LOW, -1, "EC interrupt"},
    	{CR50_IRQ.id, ACTIVE_HIGH, -1, "TPM interrupt"},
+		{GPIO_EN_SPK_AMP.id, ACTIVE_HIGH, -1, "speaker enable"},
    };
    lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
 }
diff --git a/src/mainboard/google/kukui/gpio.h b/src/mainboard/google/kukui/gpio.h
index 92d238e..977acc3 100644
--- a/src/mainboard/google/kukui/gpio.h
+++ b/src/mainboard/google/kukui/gpio.h
@@ -23,6 +23,7 @@
 #define EC_IN_RW	GPIO(PERIPHERAL_EN14)
 #define CR50_IRQ	GPIO(PERIPHERAL_EN3)
 #define GPIO_RESET	GPIO(PERIPHERAL_EN8)
+#define GPIO_EN_SPK_AMP	GPIO(PERIPHERAL_EN12)

void setup_chromeos_gpios(void);

diff --git a/src/mainboard/google/kukui/mainboard.c b/src/mainboard/google/kukui/mainboard.c
index e1d8f5f..40b8a49 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 @@
    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)