diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index e7366fcb76ee..9fc667d6776c 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -256,6 +256,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
 	{ "AMDI0015", APD_ADDR(wt_i3c_desc) },
 	{ "AMDI0019", APD_ADDR(wt_i2c_desc) },
 	{ "AMDI0020", APD_ADDR(cz_uart_desc) },
+	{ "AMDI0021", APD_ADDR(cz_uart_desc) },
 	{ "AMDI0022", APD_ADDR(cz_uart_desc) },
 	{ "HYGO0010", APD_ADDR(wt_i2c_desc) },
 #endif
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 51d026f20825..4588e9cf0389 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -910,6 +910,7 @@ static const struct acpi_device_id dw8250_acpi_match[] = {
 	{ "8086228A", (kernel_ulong_t)&dw8250_dw_apb },
 	{ "AMD0020", (kernel_ulong_t)&dw8250_dw_apb },
 	{ "AMDI0020", (kernel_ulong_t)&dw8250_dw_apb },
+	{ "AMDI0021", (kernel_ulong_t)&dw8250_dw_apb },
 	{ "AMDI0022", (kernel_ulong_t)&dw8250_dw_apb },
 	{ "APMC0D08", (kernel_ulong_t)&dw8250_apmc0d08 },
 	{ "BRCM2032", (kernel_ulong_t)&dw8250_dw_apb },