5 files changed, 8 insertions, 8 deletions
diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h
index 5f84722ac7..6014143b9d 100644
--- a/src/ec/google/chromeec/ec.h
+++ b/src/ec/google/chromeec/ec.h
@@ -344,7 +344,7 @@ int google_chromeec_get_keybd_config(struct ec_response_keybd_config *keybd);
  *
  * @param dev			EC device
  */
-void google_chromeec_fill_ssdt_generator(struct device *dev);
+void google_chromeec_fill_ssdt_generator(const struct device *dev);
 
 /**
  * Returns the ACPI name for the EC device.
diff --git a/src/ec/google/chromeec/ec_acpi.c b/src/ec/google/chromeec/ec_acpi.c
index 79e3f4bfa1..2331c7a492 100644
--- a/src/ec/google/chromeec/ec_acpi.c
+++ b/src/ec/google/chromeec/ec_acpi.c
@@ -187,7 +187,7 @@ static void add_usb_port_references(struct acpi_dp *dsd, int port_number)
 	}
 }
 
-static void fill_ssdt_typec_device(struct device *dev)
+static void fill_ssdt_typec_device(const struct device *dev)
 {
 	struct usb_pd_port_caps port_caps;
 	char con_name[] = "CONx";
@@ -249,7 +249,7 @@ static const enum ps2_action_key ps2_enum_val[] = {
 	[TK_PREV_TRACK] = PS2_KEY_PREV_TRACK,
 };
 
-static void fill_ssdt_ps2_keyboard(struct device *dev)
+static void fill_ssdt_ps2_keyboard(const struct device *dev)
 {
 	uint8_t i;
 	struct ec_response_keybd_config keybd = {};
@@ -273,7 +273,7 @@ static void fill_ssdt_ps2_keyboard(struct device *dev)
 				 !!(keybd.capabilities & KEYBD_CAP_SCRNLOCK_KEY));
 }
 
-void google_chromeec_fill_ssdt_generator(struct device *dev)
+void google_chromeec_fill_ssdt_generator(const struct device *dev)
 {
 	if (!dev->enabled)
 		return;
diff --git a/src/ec/google/wilco/chip.c b/src/ec/google/wilco/chip.c
index 7de4e0235e..0d0f987da3 100644
--- a/src/ec/google/wilco/chip.c
+++ b/src/ec/google/wilco/chip.c
@@ -179,7 +179,7 @@ static void wilco_ec_read_resources(struct device *dev)
 	wilco_ec_resource(dev, 2, CONFIG_EC_BASE_PACKET, 16);
 }
 
-static void wilco_ec_fill_ssdt_generator(struct device *dev)
+static void wilco_ec_fill_ssdt_generator(const struct device *dev)
 {
 	struct opregion opreg;
 	void *region_ptr;
diff --git a/src/ec/lenovo/h8/h8.h b/src/ec/lenovo/h8/h8.h
index 8999cc377a..5b2ae1ead9 100644
--- a/src/ec/lenovo/h8/h8.h
+++ b/src/ec/lenovo/h8/h8.h
@@ -35,7 +35,7 @@ void h8_wwan_enable(int on);
 bool h8_wwan_nv_enable(void);
 bool h8_has_wwan(const struct device *dev);
 
-void h8_ssdt_generator(struct device *dev);
+void h8_ssdt_generator(const struct device *dev);
 
 /* EC registers */
 #define H8_CONFIG0 0x00
diff --git a/src/ec/lenovo/h8/ssdt.c b/src/ec/lenovo/h8/ssdt.c
index 6b821a40f2..56e305a787 100644
--- a/src/ec/lenovo/h8/ssdt.c
+++ b/src/ec/lenovo/h8/ssdt.c
@@ -8,7 +8,7 @@
 #include "h8.h"
 #include "chip.h"
 
-static char *h8_dsdt_scope(struct device *dev, const char *scope)
+static char *h8_dsdt_scope(const struct device *dev, const char *scope)
 {
 	static char buf[DEVICE_PATH_MAX] = {};
 	const char *path = acpi_device_path(dev);
@@ -22,7 +22,7 @@ static char *h8_dsdt_scope(struct device *dev, const char *scope)
 /*
  * Generates EC SSDT.
  */
-void h8_ssdt_generator(struct device *dev)
+void h8_ssdt_generator(const struct device *dev)
 {
 	struct ec_lenovo_h8_config *conf = dev->chip_info;