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>
diff --git a/src/mainboard/google/kahlee/variants/careena/mainboard.c b/src/mainboard/google/kahlee/variants/careena/mainboard.c
new file mode 100644
index 0000000..937a411
--- /dev/null
+++ b/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;
+ }
+}