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-rw-r--r--zephyr/shim/src/CMakeLists.txt2
-rw-r--r--zephyr/shim/src/tcpc_nct38xx.c31
2 files changed, 33 insertions, 0 deletions
diff --git a/zephyr/shim/src/CMakeLists.txt b/zephyr/shim/src/CMakeLists.txt
index 0c795f6b9b..fe9a5a015d 100644
--- a/zephyr/shim/src/CMakeLists.txt
+++ b/zephyr/shim/src/CMakeLists.txt
@@ -53,3 +53,5 @@ zephyr_library_sources_ifdef(CONFIG_PLATFORM_EC_WATCHDOG watchdog.c)
zephyr_library_sources_ifdef(CONFIG_PLATFORM_EC_BC12_DETECT_PI3USB9201
bc12_pi3usb9201.c)
zephyr_library_sources_ifdef(CONFIG_PLATFORM_EC_USBC_PPC ppc.c)
+zephyr_library_sources_ifdef(CONFIG_PLATFORM_EC_USB_PD_TCPM_NCT38XX
+ tcpc_nct38xx.c)
diff --git a/zephyr/shim/src/tcpc_nct38xx.c b/zephyr/shim/src/tcpc_nct38xx.c
new file mode 100644
index 0000000000..d18e4ccbbe
--- /dev/null
+++ b/zephyr/shim/src/tcpc_nct38xx.c
@@ -0,0 +1,31 @@
+/* Copyright 2021 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <device.h>
+#include <devicetree.h>
+
+#include "config.h"
+#include "usbc/tcpc_nct38xx.h"
+
+#define TCPC_PORT(id) DT_REG_ADDR(DT_PARENT(id))
+
+#define GPIO_DEV_WITH_COMMA(id) DEVICE_DT_GET(DT_PHANDLE(id, gpio_dev)),
+
+#define GPIO_DEV_BINDING(id) \
+ COND_CODE_1(DT_NODE_HAS_PROP(id, gpio_dev), \
+ ([TCPC_PORT(id)] = GPIO_DEV_WITH_COMMA(id)), ())
+
+/* NCT38XX GPIO device pool for binding the TCPC port and NCT38XX GPIO device */
+static const struct device
+ *nct38xx_gpio_devices[CONFIG_PLATFORM_EC_USB_PD_PORT_MAX_COUNT] = {
+ DT_FOREACH_STATUS_OKAY(nuvoton_nct38xx, GPIO_DEV_BINDING)
+ };
+
+const struct device *nct38xx_get_gpio_device_from_port(const int port)
+{
+ if (port < 0 || port >= CONFIG_PLATFORM_EC_USB_PD_PORT_MAX_COUNT)
+ return NULL;
+ return nct38xx_gpio_devices[port];
+}