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-rw-r--r--src/mainboard/google/zork/variants/baseboard/ramstage_common.c64
1 files changed, 38 insertions, 26 deletions
diff --git a/src/mainboard/google/zork/variants/baseboard/ramstage_common.c b/src/mainboard/google/zork/variants/baseboard/ramstage_common.c
index 298837b54b..8a6fa47ceb 100644
--- a/src/mainboard/google/zork/variants/baseboard/ramstage_common.c
+++ b/src/mainboard/google/zork/variants/baseboard/ramstage_common.c
@@ -65,44 +65,56 @@ static void update_hp_int_odl(void)
}
-void variant_audio_update(void)
+static void update_dmic_gpio(void)
{
- const struct device *gpp_a_dev;
- const struct device *acp_dev;
- struct device *machine_dev = NULL;
+ static const struct device_path acp_machine_path[] = {
+ {
+ .type = DEVICE_PATH_PCI,
+ .pci.devfn = PCIE_GPP_A_DEVFN
+ },
+ {
+ .type = DEVICE_PATH_PCI,
+ .pci.devfn = AUDIO_DEVFN
+ },
+ {
+ .type = DEVICE_PATH_GENERIC,
+ .generic.id = 0,
+ .generic.subid = 0
+ }
+ };
+
+ const struct device *machine_dev;
+ struct drivers_amd_i2s_machine_dev_config *cfg;
+ struct acpi_gpio *gpio;
if (variant_uses_v3_schematics())
return;
- gpp_a_dev = pcidev_path_on_root(PCIE_GPP_A_DEVFN);
- if (gpp_a_dev == NULL)
+ machine_dev = find_dev_nested_path(
+ pci_root_bus(), acp_machine_path, ARRAY_SIZE(acp_machine_path));
+ if (!machine_dev) {
+ printk(BIOS_ERR, "%s: Failed to find ACP machine device\n", __func__);
return;
+ }
- acp_dev = pcidev_path_behind(gpp_a_dev->link_list, AUDIO_DEVFN);
- if (acp_dev == NULL)
+ if (machine_dev->chip_ops != &drivers_amd_i2s_machine_dev_ops) {
+ printk(BIOS_ERR, "%s: Incorrect device found\n", __func__);
return;
+ }
- while ((machine_dev = dev_bus_each_child(acp_dev->link_list, machine_dev)) != NULL) {
- struct drivers_amd_i2s_machine_dev_config *cfg;
- struct acpi_gpio *gpio;
-
- if (machine_dev->chip_info == NULL)
- continue;
-
- if (machine_dev->chip_ops != &drivers_amd_i2s_machine_dev_ops)
- continue;
-
- cfg = machine_dev->chip_info;
- gpio = &cfg->dmic_select_gpio;
+ cfg = config_of(machine_dev);
+ gpio = &cfg->dmic_select_gpio;
- if (CONFIG(BOARD_GOOGLE_BASEBOARD_TREMBYLE))
- gpio->pins[0] = GPIO_13;
- else
- gpio->pins[0] = GPIO_6;
+ if (CONFIG(BOARD_GOOGLE_BASEBOARD_TREMBYLE))
+ gpio->pins[0] = GPIO_13;
+ else
+ gpio->pins[0] = GPIO_6;
- break;
- }
+}
+void variant_audio_update(void)
+{
+ update_dmic_gpio();
update_hp_int_odl();
}