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-rw-r--r--src/acpi/acpi_pm.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/acpi/acpi_pm.c b/src/acpi/acpi_pm.c
index 40a3fbd7ad..722d8f6b62 100644
--- a/src/acpi/acpi_pm.c
+++ b/src/acpi/acpi_pm.c
@@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi.h>
+#include <acpi/acpi_gnvs.h>
#include <acpi/acpi_pm.h>
#include <assert.h>
#include <cbmem.h>
@@ -59,3 +60,29 @@ int acpi_fetch_pm_state(const struct chipset_power_state **ps,
}
return 0;
}
+
+/* Not every <soc/nvs.h> exists and has required fields. */
+#if CONFIG(ACPI_GNVS_USB_CHARGECTL) && ENV_SMM
+
+#include <cpu/x86/smm.h>
+#include <soc/nvs.h>
+
+void usb_charge_mode_from_gnvs(uint8_t slp_typ, bool *usb0_disable, bool *usb1_disable)
+{
+ if (!gnvs)
+ return;
+
+ switch (slp_typ) {
+ case ACPI_S3:
+ *usb0_disable = (gnvs->s3u0 == 0);
+ *usb1_disable = (gnvs->s3u1 == 0);
+ break;
+ case ACPI_S4:
+ case ACPI_S5:
+ *usb0_disable = (gnvs->s5u0 == 0);
+ *usb1_disable = (gnvs->s5u1 == 0);
+ break;
+ }
+}
+
+#endif /* CONFIG(ACPI_GNVS_USB_CHARGECTL) */