grunt/barla: add Realtek ALC5682 codec support

ALC5682 i2c address: 0x1A

BUG=b:171755306
BRANCH=master
TEST=emerge-grunt coreboot

Change-Id: I8bc571104bebe02acf86507774580effc808beb6
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51708
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/mainboard/google/kahlee/mainboard.c

@@ -99,6 +99,11 @@ static void pirq_setup(void)
 	picr_data_ptr = mainboard_picr_data;
 }
 
+void __weak variant_devtree_update(void)
+{
+	/* Override dev tree settings per board */
+}
+
 static void mainboard_init(void *chip_info)
 {
 	int boardid = board_id();
@@ -129,6 +134,8 @@ static void mainboard_init(void *chip_info)
 		     GPP_CLK0_REQ_MAP_MASK,
 		     GPP_CLK0_REQ_MAP_CLK_REQ0 <<
 		     GPP_CLK0_REQ_MAP_SHIFT);
+
+	variant_devtree_update();
 }
 
 /*************************************************

src/mainboard/google/kahlee/variants/baseboard/include/baseboard/variants.h

@@ -18,5 +18,6 @@ const struct soc_amd_gpio *variant_romstage_gpio_table(size_t *size);
 const struct soc_amd_gpio *variant_gpio_table(size_t *size);
 void variant_romstage_entry(void);
 void variant_mainboard_suspend_resume(void);
+void variant_devtree_update(void);
 
 #endif /* __BASEBOARD_VARIANTS_H__ */

src/mainboard/google/kahlee/variants/careena/Makefile.inc

@@ -4,3 +4,4 @@ subdirs-y += ./spd
 
 bootblock-y += variant.c
 romstage-y += variant.c
+ramstage-y += mainboard.c

src/mainboard/google/kahlee/variants/careena/devicetree.cb

@@ -107,6 +107,21 @@ chip soc/amd/stoneyridge
 			register "mclk_name" = ""oscout1""
 			device i2c 1a on end
 		end
+		chip drivers/i2c/generic
+			register "hid" = ""10EC5682""
+			register "name" = ""RT58""
+			register "uid" = "1"
+			register "desc" = ""Realtek RT5682""
+			register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_BOTH(GPIO_14)"
+			register "property_count" = "2"
+			register "property_list[0].type" = "ACPI_DP_TYPE_INTEGER"
+			register "property_list[0].name" = ""realtek,jd-src""
+			register "property_list[0].integer" = "1"
+			register "property_list[1].type" = "ACPI_DP_TYPE_STRING"
+			register "property_list[1].name" = ""realtek,mclk-name""
+			register "property_list[1].string" = ""oscout1""
+			device i2c 1a on end
+		end
 		chip drivers/generic/max98357a
 			register "hid" = ""MX98357A""
 			register "sdmode_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_119)"

src/mainboard/google/kahlee/variants/careena/include/variant/sku.h

@@ -8,4 +8,8 @@ enum careena_sku {
 	SKU_CAREENA_KB_BACKLIGHT19 = 19,
 	SKU_CAREENA_KB_BACKLIGHT22 = 22,
 	SKU_CAREENA_KB_BACKLIGHT23 = 23,
+	SKU_BARLA_ALC5682_44 = 44,
+	SKU_BARLA_ALC5682_45 = 45,
+	SKU_BARLA_ALC5682_46 = 46,
+	SKU_BARLA_ALC5682_47 = 47,
 };

src/mainboard/google/kahlee/variants/careena/mainboard.c

@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <ec/google/chromeec/ec.h>
+#include <baseboard/variants.h>
+#include <variant/sku.h>
+#include <string.h>
+#include <drivers/i2c/hid/chip.h>
+
+extern struct chip_operations drivers_i2c_generic_ops;
+extern struct chip_operations drivers_i2c_da7219_ops;
+
+void variant_devtree_update(void)
+{
+	uint32_t sku = google_chromeec_get_sku_id();
+	struct device *mmio_dev = NULL, *child = NULL;
+	struct device *alc_dev = NULL, *da7219_dev = NULL;
+
+	while (1) {
+		mmio_dev = dev_find_path(mmio_dev, DEVICE_PATH_MMIO);
+		if (mmio_dev == NULL)
+			break;
+		if (mmio_dev->path.mmio.addr == 0xfedc2000)
+			break;
+	}
+
+	if (mmio_dev == NULL)
+		return;
+
+	while ((child = dev_bus_each_child(mmio_dev->link_list, child)) != NULL) {
+		if (child->path.type != DEVICE_PATH_I2C)
+			continue;
+		if (child->path.i2c.device != 0x1a)
+			continue;
+		if (child->chip_ops == &drivers_i2c_generic_ops) {
+			struct drivers_i2c_generic_config *config = child->chip_info;
+			if (!strcmp(config->hid, "10EC5682"))
+				alc_dev = child;
+		} else if (child->chip_ops == &drivers_i2c_da7219_ops) {
+			da7219_dev = child;
+		}
+	}
+
+	switch (sku) {
+	default:
+		/* da7219 only */
+		if (da7219_dev)
+			da7219_dev->enabled = 1;
+		if (alc_dev)
+			alc_dev->enabled = 0;
+		break;
+	case SKU_BARLA_ALC5682_44:
+	case SKU_BARLA_ALC5682_45:
+	case SKU_BARLA_ALC5682_46:
+	case SKU_BARLA_ALC5682_47:
+		/* alc5682 only */
+		if (da7219_dev)
+			da7219_dev->enabled = 0;
+		if (alc_dev)
+			alc_dev->enabled = 1;
+		break;
+	}
+}