Merge tag 'tag-chrome-platform-for-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Tzung-Bi Shih:
 "Improvements:

   - Annotate flexible array members with __counted_by

   - Convert platform drivers' .remove callbacks to return void

  Fixes:

   - Avoid MKBP event timeouts by disabling/enabling IRQ later/earlier

  Misc:

   - Minor cleanups and fixes"

* tag 'tag-chrome-platform-for-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: (21 commits)
  platform/chrome: cros_ec_lpc: Separate host command and irq disable
  platform/chrome: kunit: make EC protocol tests independent
  platform/chrome: kunit: initialize lock for fake ec_dev
  platform/chrome: cros_ec: fix compilation warning
  platform/chrome: cros_ec_proto: Mark outdata as const
  platform/chrome: cros_typec_vdm: Mark port_amode_ops const
  platform/chrome: cros_ec_typec: Use dev_err_probe() more
  platform/chrome: cros_ec_typec: Use semi-colons instead of commas
  platform/chrome/wilco_ec: telemetry: Convert to platform remove callback returning void
  platform/chrome/wilco_ec: debugfs: Convert to platform remove callback returning void
  platform/chrome/wilco_ec: core: Convert to platform remove callback returning void
  platform/chrome: cros_usbpd_notify: Convert to platform remove callback returning void
  platform/chrome: cros_usbpd_logger: Convert to platform remove callback returning void
  platform/chrome: cros_typec_switch: Convert to platform remove callback returning void
  platform/chrome: cros_ec_vbc: Convert to platform remove callback returning void
  platform/chrome: cros_ec_sysfs: Convert to platform remove callback returning void
  platform/chrome: cros_ec_lpc: Convert to platform remove callback returning void
  platform/chrome: cros_ec_lightbar: Convert to platform remove callback returning void
  platform/chrome: cros_ec_debugfs: Convert to platform remove callback returning void
  platform/chrome: cros_ec_chardev: Convert to platform remove callback returning void
  ...

25 files changed, 166 insertions, 100 deletions

diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig
index 7d82a0946e1c..7a83346bfa53 100644
--- a/drivers/platform/chrome/Kconfig
+++ b/drivers/platform/chrome/Kconfig
@@ -299,12 +299,12 @@ config CROS_TYPEC_SWITCH
 source "drivers/platform/chrome/wilco_ec/Kconfig"
 
 # Kunit test cases
-config CROS_KUNIT
-	tristate "Kunit tests for ChromeOS" if !KUNIT_ALL_TESTS
+config CROS_KUNIT_EC_PROTO_TEST
+	tristate "Kunit tests for ChromeOS EC protocol" if !KUNIT_ALL_TESTS
 	depends on KUNIT && CROS_EC
 	default KUNIT_ALL_TESTS
 	select CROS_EC_PROTO
 	help
-	  ChromeOS Kunit tests.
+	  Kunit tests for ChromeOS EC protocol.
 
 endif # CHROMEOS_PLATFORMS
diff --git a/drivers/platform/chrome/Makefile b/drivers/platform/chrome/Makefile
index 9e26e45c4a37..2dcc6ccc2302 100644
--- a/drivers/platform/chrome/Makefile
+++ b/drivers/platform/chrome/Makefile
@@ -36,6 +36,5 @@ obj-$(CONFIG_CROS_USBPD_NOTIFY)		+= cros_usbpd_notify.o
 obj-$(CONFIG_WILCO_EC)			+= wilco_ec/
 
 # Kunit test cases
-obj-$(CONFIG_CROS_KUNIT)		+= cros_kunit.o
-cros_kunit-objs				:= cros_kunit_util.o
-cros_kunit-objs				+= cros_ec_proto_test.o
+obj-$(CONFIG_CROS_KUNIT_EC_PROTO_TEST)	+= cros_kunit_proto_test.o
+cros_kunit_proto_test-objs		:= cros_ec_proto_test_util.o cros_ec_proto_test.o
diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cros_ec.c
index 5d36fbc75e1b..badc68bbae8c 100644
--- a/drivers/platform/chrome/cros_ec.c
+++ b/drivers/platform/chrome/cros_ec.c
@@ -321,17 +321,8 @@ void cros_ec_unregister(struct cros_ec_device *ec_dev)
 EXPORT_SYMBOL(cros_ec_unregister);
 
 #ifdef CONFIG_PM_SLEEP
-/**
- * cros_ec_suspend() - Handle a suspend operation for the ChromeOS EC device.
- * @ec_dev: Device to suspend.
- *
- * This can be called by drivers to handle a suspend event.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_suspend(struct cros_ec_device *ec_dev)
+static void cros_ec_send_suspend_event(struct cros_ec_device *ec_dev)
 {
-	struct device *dev = ec_dev->dev;
 	int ret;
 	u8 sleep_event;
 
@@ -343,7 +334,26 @@ int cros_ec_suspend(struct cros_ec_device *ec_dev)
 	if (ret < 0)
 		dev_dbg(ec_dev->dev, "Error %d sending suspend event to ec\n",
 			ret);
+}
 
+/**
+ * cros_ec_suspend_prepare() - Handle a suspend prepare operation for the ChromeOS EC device.
+ * @ec_dev: Device to suspend.
+ *
+ * This can be called by drivers to handle a suspend prepare stage of suspend.
+ *
+ * Return: 0 always.
+ */
+int cros_ec_suspend_prepare(struct cros_ec_device *ec_dev)
+{
+	cros_ec_send_suspend_event(ec_dev);
+	return 0;
+}
+EXPORT_SYMBOL(cros_ec_suspend_prepare);
+
+static void cros_ec_disable_irq(struct cros_ec_device *ec_dev)
+{
+	struct device *dev = ec_dev->dev;
 	if (device_may_wakeup(dev))
 		ec_dev->wake_enabled = !enable_irq_wake(ec_dev->irq);
 	else
@@ -351,7 +361,35 @@ int cros_ec_suspend(struct cros_ec_device *ec_dev)
 
 	disable_irq(ec_dev->irq);
 	ec_dev->suspended = true;
+}
 
+/**
+ * cros_ec_suspend_late() - Handle a suspend late operation for the ChromeOS EC device.
+ * @ec_dev: Device to suspend.
+ *
+ * This can be called by drivers to handle a suspend late stage of suspend.
+ *
+ * Return: 0 always.
+ */
+int cros_ec_suspend_late(struct cros_ec_device *ec_dev)
+{
+	cros_ec_disable_irq(ec_dev);
+	return 0;
+}
+EXPORT_SYMBOL(cros_ec_suspend_late);
+
+/**
+ * cros_ec_suspend() - Handle a suspend operation for the ChromeOS EC device.
+ * @ec_dev: Device to suspend.
+ *
+ * This can be called by drivers to handle a suspend event.
+ *
+ * Return: 0 always.
+ */
+int cros_ec_suspend(struct cros_ec_device *ec_dev)
+{
+	cros_ec_send_suspend_event(ec_dev);
+	cros_ec_disable_irq(ec_dev);
 	return 0;
 }
 EXPORT_SYMBOL(cros_ec_suspend);
@@ -370,22 +408,11 @@ static void cros_ec_report_events_during_suspend(struct cros_ec_device *ec_dev)
 	}
 }
 
-/**
- * cros_ec_resume() - Handle a resume operation for the ChromeOS EC device.
- * @ec_dev: Device to resume.
- *
- * This can be called by drivers to handle a resume event.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_resume(struct cros_ec_device *ec_dev)
+static void cros_ec_send_resume_event(struct cros_ec_device *ec_dev)
 {
 	int ret;
 	u8 sleep_event;
 
-	ec_dev->suspended = false;
-	enable_irq(ec_dev->irq);
-
 	sleep_event = (!IS_ENABLED(CONFIG_ACPI) || pm_suspend_via_firmware()) ?
 		      HOST_SLEEP_EVENT_S3_RESUME :
 		      HOST_SLEEP_EVENT_S0IX_RESUME;
@@ -394,6 +421,24 @@ int cros_ec_resume(struct cros_ec_device *ec_dev)
 	if (ret < 0)
 		dev_dbg(ec_dev->dev, "Error %d sending resume event to ec\n",
 			ret);
+}
+
+/**
+ * cros_ec_resume_complete() - Handle a resume complete operation for the ChromeOS EC device.
+ * @ec_dev: Device to resume.
+ *
+ * This can be called by drivers to handle a resume complete stage of resume.
+ */
+void cros_ec_resume_complete(struct cros_ec_device *ec_dev)
+{
+	cros_ec_send_resume_event(ec_dev);
+}
+EXPORT_SYMBOL(cros_ec_resume_complete);
+
+static void cros_ec_enable_irq(struct cros_ec_device *ec_dev)
+{
+	ec_dev->suspended = false;
+	enable_irq(ec_dev->irq);
 
 	if (ec_dev->wake_enabled)
 		disable_irq_wake(ec_dev->irq);
@@ -403,8 +448,35 @@ int cros_ec_resume(struct cros_ec_device *ec_dev)
 	 * suspend. This way the clients know what to do with them.
 	 */
 	cros_ec_report_events_during_suspend(ec_dev);
+}
 
+/**
+ * cros_ec_resume_early() - Handle a resume early operation for the ChromeOS EC device.
+ * @ec_dev: Device to resume.
+ *
+ * This can be called by drivers to handle a resume early stage of resume.
+ *
+ * Return: 0 always.
+ */
+int cros_ec_resume_early(struct cros_ec_device *ec_dev)
+{
+	cros_ec_enable_irq(ec_dev);
+	return 0;
+}
+EXPORT_SYMBOL(cros_ec_resume_early);
 
+/**
+ * cros_ec_resume() - Handle a resume operation for the ChromeOS EC device.
+ * @ec_dev: Device to resume.
+ *
+ * This can be called by drivers to handle a resume event.
+ *
+ * Return: 0 always.
+ */
+int cros_ec_resume(struct cros_ec_device *ec_dev)
+{
+	cros_ec_enable_irq(ec_dev);
+	cros_ec_send_resume_event(ec_dev);
 	return 0;
 }
 EXPORT_SYMBOL(cros_ec_resume);
diff --git a/drivers/platform/chrome/cros_ec.h b/drivers/platform/chrome/cros_ec.h
index bbca0096868a..6b95f1e0bace 100644
--- a/drivers/platform/chrome/cros_ec.h
+++ b/drivers/platform/chrome/cros_ec.h
@@ -10,11 +10,17 @@
 
 #include <linux/interrupt.h>
 
+struct cros_ec_device;
+
 int cros_ec_register(struct cros_ec_device *ec_dev);
 void cros_ec_unregister(struct cros_ec_device *ec_dev);
 
 int cros_ec_suspend(struct cros_ec_device *ec_dev);
+int cros_ec_suspend_late(struct cros_ec_device *ec_dev);
+int cros_ec_suspend_prepare(struct cros_ec_device *ec_dev);
 int cros_ec_resume(struct cros_ec_device *ec_dev);
+int cros_ec_resume_early(struct cros_ec_device *ec_dev);
+void cros_ec_resume_complete(struct cros_ec_device *ec_dev);
 
 irqreturn_t cros_ec_irq_thread(int irq, void *data);
 
diff --git a/drivers/platform/chrome/cros_ec_chardev.c b/drivers/platform/chrome/cros_ec_chardev.c
index d6de5a294128..81950bb2c6da 100644
--- a/drivers/platform/chrome/cros_ec_chardev.c
+++ b/drivers/platform/chrome/cros_ec_chardev.c
@@ -396,13 +396,11 @@ static int cros_ec_chardev_probe(struct platform_device *pdev)
 	return misc_register(&data->misc);
 }
 
-static int cros_ec_chardev_remove(struct platform_device *pdev)
+static void cros_ec_chardev_remove(struct platform_device *pdev)
 {
 	struct chardev_data *data = dev_get_drvdata(&pdev->dev);
 
 	misc_deregister(&data->misc);
-
-	return 0;
 }
 
 static struct platform_driver cros_ec_chardev_driver = {
@@ -410,7 +408,7 @@ static struct platform_driver cros_ec_chardev_driver = {
 		.name = DRV_NAME,
 	},
 	.probe = cros_ec_chardev_probe,
-	.remove = cros_ec_chardev_remove,
+	.remove_new = cros_ec_chardev_remove,
 };
 
 module_platform_driver(cros_ec_chardev_driver);
diff --git a/drivers/platform/chrome/cros_ec_debugfs.c b/drivers/platform/chrome/cros_ec_debugfs.c
index c876120e0ebc..091fdc154d79 100644
--- a/drivers/platform/chrome/cros_ec_debugfs.c
+++ b/drivers/platform/chrome/cros_ec_debugfs.c
@@ -533,14 +533,12 @@ remove_debugfs:
 	return ret;
 }
 
-static int cros_ec_debugfs_remove(struct platform_device *pd)
+static void cros_ec_debugfs_remove(struct platform_device *pd)
 {
 	struct cros_ec_dev *ec = dev_get_drvdata(pd->dev.parent);
 
 	debugfs_remove_recursive(ec->debug_info->dir);
 	cros_ec_cleanup_console_log(ec->debug_info);
-
-	return 0;
 }
 
 static int __maybe_unused cros_ec_debugfs_suspend(struct device *dev)
@@ -573,7 +571,7 @@ static struct platform_driver cros_ec_debugfs_driver = {
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe = cros_ec_debugfs_probe,
-	.remove = cros_ec_debugfs_remove,
+	.remove_new = cros_ec_debugfs_remove,
 };
 
 module_platform_driver(cros_ec_debugfs_driver);
diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/drivers/platform/chrome/cros_ec_lightbar.c
index 376425bbd8ff..6677cc6c4984 100644
--- a/drivers/platform/chrome/cros_ec_lightbar.c
+++ b/drivers/platform/chrome/cros_ec_lightbar.c
@@ -560,7 +560,7 @@ static int cros_ec_lightbar_probe(struct platform_device *pd)
 	return ret;
 }
 
-static int cros_ec_lightbar_remove(struct platform_device *pd)
+static void cros_ec_lightbar_remove(struct platform_device *pd)
 {
 	struct cros_ec_dev *ec_dev = dev_get_drvdata(pd->dev.parent);
 
@@ -569,8 +569,6 @@ static int cros_ec_lightbar_remove(struct platform_device *pd)
 
 	/* Let the EC take over the lightbar again. */
 	lb_manual_suspend_ctrl(ec_dev, 0);
-
-	return 0;
 }
 
 static int __maybe_unused cros_ec_lightbar_resume(struct device *dev)
@@ -603,7 +601,7 @@ static struct platform_driver cros_ec_lightbar_driver = {
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe = cros_ec_lightbar_probe,
-	.remove = cros_ec_lightbar_remove,
+	.remove_new = cros_ec_lightbar_remove,
 };
 
 module_platform_driver(cros_ec_lightbar_driver);
diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
index 356572452898..f0f3d3d56157 100644
--- a/drivers/platform/chrome/cros_ec_lpc.c
+++ b/drivers/platform/chrome/cros_ec_lpc.c
@@ -460,7 +460,7 @@ static int cros_ec_lpc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int cros_ec_lpc_remove(struct platform_device *pdev)
+static void cros_ec_lpc_remove(struct platform_device *pdev)
 {
 	struct cros_ec_device *ec_dev = platform_get_drvdata(pdev);
 	struct acpi_device *adev;
@@ -471,8 +471,6 @@ static int cros_ec_lpc_remove(struct platform_device *pdev)
 					   cros_ec_lpc_acpi_notify);
 
 	cros_ec_unregister(ec_dev);
-
-	return 0;
 }
 
 static const struct acpi_device_id cros_ec_lpc_acpi_device_ids[] = {
@@ -549,22 +547,36 @@ MODULE_DEVICE_TABLE(dmi, cros_ec_lpc_dmi_table);
 static int cros_ec_lpc_prepare(struct device *dev)
 {
 	struct cros_ec_device *ec_dev = dev_get_drvdata(dev);
-
-	return cros_ec_suspend(ec_dev);
+	return cros_ec_suspend_prepare(ec_dev);
 }
 
 static void cros_ec_lpc_complete(struct device *dev)
 {
 	struct cros_ec_device *ec_dev = dev_get_drvdata(dev);
-	cros_ec_resume(ec_dev);
+	cros_ec_resume_complete(ec_dev);
+}
+
+static int cros_ec_lpc_suspend_late(struct device *dev)
+{
+	struct cros_ec_device *ec_dev = dev_get_drvdata(dev);
+
+	return cros_ec_suspend_late(ec_dev);
+}
+
+static int cros_ec_lpc_resume_early(struct device *dev)
+{
+	struct cros_ec_device *ec_dev = dev_get_drvdata(dev);
+
+	return cros_ec_resume_early(ec_dev);
 }
 #endif
 
 static const struct dev_pm_ops cros_ec_lpc_pm_ops = {
 #ifdef CONFIG_PM_SLEEP
 	.prepare = cros_ec_lpc_prepare,
-	.complete = cros_ec_lpc_complete
+	.complete = cros_ec_lpc_complete,
 #endif
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(cros_ec_lpc_suspend_late, cros_ec_lpc_resume_early)
 };
 
 static struct platform_driver cros_ec_lpc_driver = {
@@ -580,7 +592,7 @@ static struct platform_driver cros_ec_lpc_driver = {
 		.probe_type = PROBE_FORCE_SYNCHRONOUS,
 	},
 	.probe = cros_ec_lpc_probe,
-	.remove = cros_ec_lpc_remove,
+	.remove_new = cros_ec_lpc_remove,
 };
 
 static struct platform_device cros_ec_lpc_device = {
diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c
index 475a6dd72db6..945b1b15a04c 100644
--- a/drivers/platform/chrome/cros_ec_proto.c
+++ b/drivers/platform/chrome/cros_ec_proto.c
@@ -1004,7 +1004,7 @@ EXPORT_SYMBOL_GPL(cros_ec_get_sensor_count);
 int cros_ec_cmd(struct cros_ec_device *ec_dev,
 		unsigned int version,
 		int command,
-		void *outdata,
+		const void *outdata,
 		size_t outsize,
 		void *indata,
 		size_t insize)
diff --git a/drivers/platform/chrome/cros_ec_proto_test.c b/drivers/platform/chrome/cros_ec_proto_test.c
index 5b9748e0463b..b6169d6f2467 100644
--- a/drivers/platform/chrome/cros_ec_proto_test.c
+++ b/drivers/platform/chrome/cros_ec_proto_test.c
@@ -11,7 +11,7 @@
 #include <linux/platform_data/cros_ec_proto.h>
 
 #include "cros_ec.h"
-#include "cros_kunit_util.h"
+#include "cros_ec_proto_test_util.h"
 
 #define BUFSIZE 512
 
@@ -2668,6 +2668,7 @@ static int cros_ec_proto_test_init(struct kunit *test)
 	ec_dev->dev->release = cros_ec_proto_test_release;
 	ec_dev->cmd_xfer = cros_kunit_ec_xfer_mock;
 	ec_dev->pkt_xfer = cros_kunit_ec_xfer_mock;
+	mutex_init(&ec_dev->lock);
 
 	priv->msg = (struct cros_ec_command *)priv->_msg;
 
diff --git a/drivers/platform/chrome/cros_kunit_util.c b/drivers/platform/chrome/cros_ec_proto_test_util.c
index f0fda96b11bd..65d328bcd6eb 100644
--- a/drivers/platform/chrome/cros_kunit_util.c
+++ b/drivers/platform/chrome/cros_ec_proto_test_util.c
@@ -11,7 +11,7 @@
 #include <linux/platform_data/cros_ec_proto.h>
 
 #include "cros_ec.h"
-#include "cros_kunit_util.h"
+#include "cros_ec_proto_test_util.h"
 
 int cros_kunit_ec_xfer_mock_default_result;
 int cros_kunit_ec_xfer_mock_default_ret;
@@ -126,5 +126,3 @@ void cros_kunit_mock_reset(void)
 	cros_kunit_readmem_mock_data = NULL;
 	cros_kunit_readmem_mock_ret = 0;
 }
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/platform/chrome/cros_kunit_util.h b/drivers/platform/chrome/cros_ec_proto_test_util.h
index 414002271c9c..414002271c9c 100644
--- a/drivers/platform/chrome/cros_kunit_util.h
+++ b/drivers/platform/chrome/cros_ec_proto_test_util.h
diff --git a/drivers/platform/chrome/cros_ec_sysfs.c b/drivers/platform/chrome/cros_ec_sysfs.c
index 09e3bf5e8ec6..93e67ab4af06 100644
--- a/drivers/platform/chrome/cros_ec_sysfs.c
+++ b/drivers/platform/chrome/cros_ec_sysfs.c
@@ -340,13 +340,11 @@ static int cros_ec_sysfs_probe(struct platform_device *pd)
 	return ret;
 }
 
-static int cros_ec_sysfs_remove(struct platform_device *pd)
+static void cros_ec_sysfs_remove(struct platform_device *pd)
 {
 	struct cros_ec_dev *ec_dev = dev_get_drvdata(pd->dev.parent);
 
 	sysfs_remove_group(&ec_dev->class_dev.kobj, &cros_ec_attr_group);
-
-	return 0;
 }
 
 static struct platform_driver cros_ec_sysfs_driver = {
@@ -354,7 +352,7 @@ static struct platform_driver cros_ec_sysfs_driver = {
 		.name = DRV_NAME,
 	},
 	.probe = cros_ec_sysfs_probe,
-	.remove = cros_ec_sysfs_remove,
+	.remove_new = cros_ec_sysfs_remove,
 };
 
 module_platform_driver(cros_ec_sysfs_driver);
diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index d0b4d3fc40ed..67000e4a8082 100644
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -80,28 +80,28 @@ static int cros_typec_get_switch_handles(struct cros_typec_port *port,
 	port->mux = fwnode_typec_mux_get(fwnode);
 	if (IS_ERR(port->mux)) {
 		ret = PTR_ERR(port->mux);
-		dev_dbg(dev, "Mux handle not found: %d.\n", ret);
+		dev_err_probe(dev, ret, "Mux handle not found\n");
 		goto mux_err;
 	}
 
 	port->retimer = fwnode_typec_retimer_get(fwnode);
 	if (IS_ERR(port->retimer)) {
 		ret = PTR_ERR(port->retimer);
-		dev_dbg(dev, "Retimer handle not found: %d.\n", ret);
+		dev_err_probe(dev, ret, "Retimer handle not found\n");
 		goto retimer_sw_err;
 	}
 
 	port->ori_sw = fwnode_typec_switch_get(fwnode);
 	if (IS_ERR(port->ori_sw)) {
 		ret = PTR_ERR(port->ori_sw);
-		dev_dbg(dev, "Orientation switch handle not found: %d\n", ret);
+		dev_err_probe(dev, ret, "Orientation switch handle not found\n");
 		goto ori_sw_err;
 	}
 
 	port->role_sw = fwnode_usb_role_switch_get(fwnode);
 	if (IS_ERR(port->role_sw)) {
 		ret = PTR_ERR(port->role_sw);
-		dev_dbg(dev, "USB role switch handle not found: %d\n", ret);
+		dev_err_probe(dev, ret, "USB role switch handle not found\n");
 		goto role_sw_err;
 	}
 
@@ -271,9 +271,9 @@ static int cros_typec_register_port_altmodes(struct cros_typec_data *typec,
 	struct typec_altmode *amode;
 
 	/* All PD capable CrOS devices are assumed to support DP altmode. */
-	desc.svid = USB_TYPEC_DP_SID,
-	desc.mode = USB_TYPEC_DP_MODE,
-	desc.vdo = DP_PORT_VDO,
+	desc.svid = USB_TYPEC_DP_SID;
+	desc.mode = USB_TYPEC_DP_MODE;
+	desc.vdo = DP_PORT_VDO;
 	amode = typec_port_register_altmode(port->port, &desc);
 	if (IS_ERR(amode))
 		return PTR_ERR(amode);
@@ -287,8 +287,8 @@ static int cros_typec_register_port_altmodes(struct cros_typec_data *typec,
 	 * here for now.
 	 */
 	memset(&desc, 0, sizeof(desc));
-	desc.svid = USB_TYPEC_TBT_SID,
-	desc.mode = TYPEC_ANY_MODE,
+	desc.svid = USB_TYPEC_TBT_SID;
+	desc.mode = TYPEC_ANY_MODE;
 	amode = typec_port_register_altmode(port->port, &desc);
 	if (IS_ERR(amode))
 		return PTR_ERR(amode);
diff --git a/drivers/platform/chrome/cros_ec_vbc.c b/drivers/platform/chrome/cros_ec_vbc.c
index c859c862d7ac..2e4af10c7679 100644
--- a/drivers/platform/chrome/cros_ec_vbc.c
+++ b/drivers/platform/chrome/cros_ec_vbc.c
@@ -121,14 +121,12 @@ static int cros_ec_vbc_probe(struct platform_device *pd)
 	return ret;
 }
 
-static int cros_ec_vbc_remove(struct platform_device *pd)
+static void cros_ec_vbc_remove(struct platform_device *pd)
 {
 	struct cros_ec_dev *ec_dev = dev_get_drvdata(pd->dev.parent);
 
 	sysfs_remove_group(&ec_dev->class_dev.kobj,
 			   &cros_ec_vbc_attr_group);
-
-	return 0;
 }
 
 static struct platform_driver cros_ec_vbc_driver = {
@@ -136,7 +134,7 @@ static struct platform_driver cros_ec_vbc_driver = {
 		.name = DRV_NAME,
 	},
 	.probe = cros_ec_vbc_probe,
-	.remove = cros_ec_vbc_remove,
+	.remove_new = cros_ec_vbc_remove,
 };
 
 module_platform_driver(cros_ec_vbc_driver);
diff --git a/drivers/platform/chrome/cros_typec_switch.c b/drivers/platform/chrome/cros_typec_switch.c
index 0eefdcf14d63..07a19386dc4e 100644
--- a/drivers/platform/chrome/cros_typec_switch.c
+++ b/drivers/platform/chrome/cros_typec_switch.c
@@ -297,12 +297,11 @@ static int cros_typec_switch_probe(struct platform_device *pdev)
 	return cros_typec_register_switches(sdata);
 }
 
-static int cros_typec_switch_remove(struct platform_device *pdev)
+static void cros_typec_switch_remove(struct platform_device *pdev)
 {
 	struct cros_typec_switch_data *sdata = platform_get_drvdata(pdev);
 
 	cros_typec_unregister_switches(sdata);
-	return 0;
 }
 
 #ifdef CONFIG_ACPI
@@ -319,7 +318,7 @@ static struct platform_driver cros_typec_switch_driver = {
 		.acpi_match_table = ACPI_PTR(cros_typec_switch_acpi_id),
 	},
 	.probe = cros_typec_switch_probe,
-	.remove = cros_typec_switch_remove,
+	.remove_new = cros_typec_switch_remove,
 };
 
 module_platform_driver(cros_typec_switch_driver);
diff --git a/drivers/platform/chrome/cros_typec_vdm.c b/drivers/platform/chrome/cros_typec_vdm.c
index 20515ee0a20e..3f632fd35000 100644
--- a/drivers/platform/chrome/cros_typec_vdm.c
+++ b/drivers/platform/chrome/cros_typec_vdm.c
@@ -142,7 +142,7 @@ static int cros_typec_port_amode_vdm(struct typec_altmode *amode, const u32 hdr,
 			   sizeof(req), NULL, 0);
 }
 
-struct typec_altmode_ops port_amode_ops = {
+const struct typec_altmode_ops port_amode_ops = {
 	.enter = cros_typec_port_amode_enter,
 	.vdm = cros_typec_port_amode_vdm,
 };
diff --git a/drivers/platform/chrome/cros_typec_vdm.h b/drivers/platform/chrome/cros_typec_vdm.h
index 95a6a75d32b6..631bd2ce4b00 100644
--- a/drivers/platform/chrome/cros_typec_vdm.h
+++ b/drivers/platform/chrome/cros_typec_vdm.h
@@ -5,7 +5,7 @@
 
 #include <linux/usb/typec_altmode.h>
 
-extern struct typec_altmode_ops port_amode_ops;
+extern const struct typec_altmode_ops port_amode_ops;
 
 void cros_typec_handle_vdm_attention(struct cros_typec_data *typec, int port_num);
 void cros_typec_handle_vdm_response(struct cros_typec_data *typec, int port_num);
diff --git a/drivers/platform/chrome/cros_usbpd_logger.c b/drivers/platform/chrome/cros_usbpd_logger.c
index d16931203d82..f618757f8b32 100644
--- a/drivers/platform/chrome/cros_usbpd_logger.c
+++ b/drivers/platform/chrome/cros_usbpd_logger.c
@@ -219,14 +219,12 @@ static int cros_usbpd_logger_probe(struct platform_device *pd)
 	return 0;
 }
 
-static int cros_usbpd_logger_remove(struct platform_device *pd)
+static void cros_usbpd_logger_remove(struct platform_device *pd)
 {
 	struct logger_data *logger = platform_get_drvdata(pd);
 
 	cancel_delayed_work_sync(&logger->log_work);
 	destroy_workqueue(logger->log_workqueue);
-
-	return 0;
 }
 
 static int __maybe_unused cros_usbpd_logger_resume(struct device *dev)
@@ -257,7 +255,7 @@ static struct platform_driver cros_usbpd_logger_driver = {
 		.pm = &cros_usbpd_logger_pm_ops,
 	},
 	.probe = cros_usbpd_logger_probe,
-	.remove = cros_usbpd_logger_remove,
+	.remove_new = cros_usbpd_logger_remove,
 };
 
 module_platform_driver(cros_usbpd_logger_driver);
diff --git a/drivers/platform/chrome/cros_usbpd_notify.c b/drivers/platform/chrome/cros_usbpd_notify.c
index 10670b6588e3..aacad022f21d 100644
--- a/drivers/platform/chrome/cros_usbpd_notify.c
+++ b/drivers/platform/chrome/cros_usbpd_notify.c
@@ -134,15 +134,13 @@ static int cros_usbpd_notify_probe_acpi(struct platform_device *pdev)
 	return 0;
 }
 
-static int cros_usbpd_notify_remove_acpi(struct platform_device *pdev)
+static void cros_usbpd_notify_remove_acpi(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct acpi_device *adev = ACPI_COMPANION(dev);
 
 	acpi_remove_notify_handler(adev->handle, ACPI_ALL_NOTIFY,
 				   cros_usbpd_notify_acpi);
-
-	return 0;
 }
 
 static const struct acpi_device_id cros_usbpd_notify_acpi_device_ids[] = {
@@ -157,7 +155,7 @@ static struct platform_driver cros_usbpd_notify_acpi_driver = {
 		.acpi_match_table = cros_usbpd_notify_acpi_device_ids,
 	},
 	.probe = cros_usbpd_notify_probe_acpi,
-	.remove = cros_usbpd_notify_remove_acpi,
+	.remove_new = cros_usbpd_notify_remove_acpi,
 };
 
 #endif /* CONFIG_ACPI */
@@ -209,7 +207,7 @@ static int cros_usbpd_notify_probe_plat(struct platform_device *pdev)
 	return 0;
 }
 
-static int cros_usbpd_notify_remove_plat(struct platform_device *pdev)
+static void cros_usbpd_notify_remove_plat(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct cros_ec_dev *ecdev = dev_get_drvdata(dev->parent);
@@ -218,8 +216,6 @@ static int cros_usbpd_notify_remove_plat(struct platform_device *pdev)
 
 	blocking_notifier_chain_unregister(&ecdev->ec_dev->event_notifier,
 					   &pdnotify->nb);
-
-	return 0;
 }
 
 static struct platform_driver cros_usbpd_notify_plat_driver = {
@@ -227,7 +223,7 @@ static struct platform_driver cros_usbpd_notify_plat_driver = {
 		.name = DRV_NAME,
 	},
 	.probe = cros_usbpd_notify_probe_plat,
-	.remove = cros_usbpd_notify_remove_plat,
+	.remove_new = cros_usbpd_notify_remove_plat,
 };
 
 static int __init cros_usbpd_notify_init(void)
diff --git a/drivers/platform/chrome/wilco_ec/core.c b/drivers/platform/chrome/wilco_ec/core.c
index d6a994bdc182..9b59a1bed286 100644
--- a/drivers/platform/chrome/wilco_ec/core.c
+++ b/drivers/platform/chrome/wilco_ec/core.c
@@ -132,7 +132,7 @@ unregister_debugfs:
 	return ret;
 }
 
-static int wilco_ec_remove(struct platform_device *pdev)
+static void wilco_ec_remove(struct platform_device *pdev)
 {
 	struct wilco_ec_device *ec = platform_get_drvdata(pdev);
 
@@ -142,7 +142,6 @@ static int wilco_ec_remove(struct platform_device *pdev)
 	platform_device_unregister(ec->rtc_pdev);
 	if (ec->debugfs_pdev)
 		platform_device_unregister(ec->debugfs_pdev);
-	return 0;
 }
 
 static const struct acpi_device_id wilco_ec_acpi_device_ids[] = {
@@ -157,7 +156,7 @@ static struct platform_driver wilco_ec_driver = {
 		.acpi_match_table = wilco_ec_acpi_device_ids,
 	},
 	.probe = wilco_ec_probe,
-	.remove = wilco_ec_remove,
+	.remove_new = wilco_ec_remove,
 };
 
 module_platform_driver(wilco_ec_driver);
diff --git a/drivers/platform/chrome/wilco_ec/debugfs.c b/drivers/platform/chrome/wilco_ec/debugfs.c
index 7a13f13b16cd..93c11f81ca45 100644
--- a/drivers/platform/chrome/wilco_ec/debugfs.c
+++ b/drivers/platform/chrome/wilco_ec/debugfs.c
@@ -260,11 +260,9 @@ static int wilco_ec_debugfs_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int wilco_ec_debugfs_remove(struct platform_device *pdev)
+static void wilco_ec_debugfs_remove(struct platform_device *pdev)
 {
 	debugfs_remove_recursive(debug_info->dir);
-
-	return 0;
 }
 
 static struct platform_driver wilco_ec_debugfs_driver = {
@@ -272,7 +270,7 @@ static struct platform_driver wilco_ec_debugfs_driver = {
 		.name = DRV_NAME,
 	},
 	.probe = wilco_ec_debugfs_probe,
-	.remove = wilco_ec_debugfs_remove,
+	.remove_new = wilco_ec_debugfs_remove,
 };
 
 module_platform_driver(wilco_ec_debugfs_driver);
diff --git a/drivers/platform/chrome/wilco_ec/event.c b/drivers/platform/chrome/wilco_ec/event.c
index a40f60bcefb6..f80a7c83cfba 100644
--- a/drivers/platform/chrome/wilco_ec/event.c
+++ b/drivers/platform/chrome/wilco_ec/event.c
@@ -95,7 +95,7 @@ struct ec_event_queue {
 	int capacity;
 	int head;
 	int tail;
-	struct ec_event *entries[];
+	struct ec_event *entries[] __counted_by(capacity);
 };
 
 /* Maximum number of events to store in ec_event_queue */
diff --git a/drivers/platform/chrome/wilco_ec/telemetry.c b/drivers/platform/chrome/wilco_ec/telemetry.c
index 54708aa6c700..253098bace63 100644
--- a/drivers/platform/chrome/wilco_ec/telemetry.c
+++ b/drivers/platform/chrome/wilco_ec/telemetry.c
@@ -400,20 +400,18 @@ static int telem_device_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int telem_device_remove(struct platform_device *pdev)
+static void telem_device_remove(struct platform_device *pdev)
 {
 	struct telem_device_data *dev_data = platform_get_drvdata(pdev);
 
 	cdev_device_del(&dev_data->cdev, &dev_data->dev);
 	ida_simple_remove(&telem_ida, MINOR(dev_data->dev.devt));
 	put_device(&dev_data->dev);
-
-	return 0;
 }
 
 static struct platform_driver telem_driver = {
 	.probe = telem_device_probe,
-	.remove = telem_device_remove,
+	.remove_new = telem_device_remove,
 	.driver = {
 		.name = DRV_NAME,
 	},
diff --git a/include/linux/platform_data/cros_ec_proto.h b/include/linux/platform_data/cros_ec_proto.h
index 4f9f756bc17c..8865e350c12a 100644
--- a/include/linux/platform_data/cros_ec_proto.h
+++ b/include/linux/platform_data/cros_ec_proto.h
@@ -258,7 +258,7 @@ bool cros_ec_check_features(struct cros_ec_dev *ec, int feature);
 
 int cros_ec_get_sensor_count(struct cros_ec_dev *ec);
 
-int cros_ec_cmd(struct cros_ec_device *ec_dev, unsigned int version, int command, void *outdata,
+int cros_ec_cmd(struct cros_ec_device *ec_dev, unsigned int version, int command, const void *outdata,
 		    size_t outsize, void *indata, size_t insize);
 
 /**