Merge tag 'tag-chrome-platform-for-v5.6' of...

Merge tag 'tag-chrome-platform-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:
 "CrOS EC:

   - Refactoring of some of cros_ec's headers:

     include/linux/mfd/cros_ec.h now removed, new cros_ec.h added to
     drivers/platform/chrome which contains shared operations of cros_ec
     transport drivers.

   - Response tracing in cros_ec_proto

  Wilco EC:

   - Fix unregistration order.

   - Fix keyboard backlight probing on systems without keyboard
     backlight

   - Minor cleanup (newlines in printks, COMPILE_TEST)

  Misc:

   - chromeos_laptop converted to use i2c_new_scanned_device instead of
     i2c_new_probed_device"

* tag 'tag-chrome-platform-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec: Match implementation with headers
  platform/chrome: cros_ec: Drop unaligned.h include
  platform/chrome: wilco_ec: Allow wilco to be compiled in COMPILE_TEST
  platform/chrome: wilco_ec: Add newlines to printks
  platform/chrome: wilco_ec: Fix unregistration order
  cros_ec: treewide: Remove 'include/linux/mfd/cros_ec.h'
  platform/chrome: cros_ec_ishtp: Make init_lock static
  platform/chrome: chromeos_laptop: Convert to i2c_new_scanned_device
  platform/chrome: cros_ec_lpc: Use platform_get_irq_optional() for optional IRQs
  platform/chrome: cros_ec_proto: Add response tracing
  platform/chrome: cros_ec_trace: Match trace commands with EC commands

drivers/iio/accel/cros_ec_accel_legacy.c

@@ -18,7 +18,6 @@
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
 #include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/platform_data/cros_ec_commands.h>

drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c

@@ -16,7 +16,6 @@
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
 #include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>

drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c

@@ -13,7 +13,6 @@
 #include <linux/iio/kfifo_buf.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/platform_data/cros_ec_commands.h>

drivers/iio/light/cros_ec_light_prox.c

@@ -14,7 +14,6 @@
 #include <linux/iio/triggered_buffer.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>

drivers/iio/pressure/cros_ec_baro.c

@@ -14,7 +14,6 @@
 #include <linux/iio/triggered_buffer.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/platform_data/cros_ec_commands.h>

drivers/media/platform/cros-ec-cec/cros-ec-cec.c

@@ -14,7 +14,6 @@
 #include <linux/cec.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>
 #include <media/cec.h>

drivers/mfd/cros_ec_dev.c

@@ -7,7 +7,6 @@
 
 #include <linux/kconfig.h>
 #include <linux/mfd/core.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/of_platform.h>

drivers/platform/chrome/chromeos_laptop.c

@@ -63,7 +63,7 @@ struct acpi_peripheral {
 struct chromeos_laptop {
 	/*
 	 * Note that we can't mark this pointer as const because
-	 * i2c_new_probed_device() changes passed in I2C board info, so.
+	 * i2c_new_scanned_device() changes passed in I2C board info, so.
 	 */
 	struct i2c_peripheral *i2c_peripherals;
 	unsigned int num_i2c_peripherals;
@@ -87,8 +87,8 @@ chromes_laptop_instantiate_i2c_device(struct i2c_adapter *adapter,
 	 * address we scan secondary addresses. In any case the client
 	 * structure gets assigned primary address.
 	 */
-	client = i2c_new_probed_device(adapter, info, addr_list, NULL);
-	if (!client && alt_addr) {
+	client = i2c_new_scanned_device(adapter, info, addr_list, NULL);
+	if (IS_ERR(client) && alt_addr) {
 		struct i2c_board_info dummy_info = {
 			I2C_BOARD_INFO("dummy", info->addr),
 		};
@@ -97,9 +97,9 @@ chromes_laptop_instantiate_i2c_device(struct i2c_adapter *adapter,
 		};
 		struct i2c_client *dummy;
 
-		dummy = i2c_new_probed_device(adapter, &dummy_info,
-					      alt_addr_list, NULL);
-		if (dummy) {
+		dummy = i2c_new_scanned_device(adapter, &dummy_info,
+					       alt_addr_list, NULL);
+		if (!IS_ERR(dummy)) {
 			pr_debug("%d-%02x is probed at %02x\n",
 				 adapter->nr, info->addr, dummy->addr);
 			i2c_unregister_device(dummy);
@@ -107,12 +107,14 @@ chromes_laptop_instantiate_i2c_device(struct i2c_adapter *adapter,
 		}
 	}
 
-	if (!client)
+	if (IS_ERR(client)) {
+		client = NULL;
 		pr_debug("failed to register device %d-%02x\n",
 			 adapter->nr, info->addr);
-	else
+	} else {
 		pr_debug("added i2c device %d-%02x\n",
 			 adapter->nr, info->addr);
+	}
 
 	return client;
 }

drivers/platform/chrome/cros_ec.c

@@ -16,7 +16,8 @@
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>
 #include <linux/suspend.h>
-#include <asm/unaligned.h>
+
+#include "cros_ec.h"
 
 #define CROS_EC_DEV_EC_INDEX 0
 #define CROS_EC_DEV_PD_INDEX 1

drivers/platform/chrome/cros_ec.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * ChromeOS Embedded Controller core interface.
+ *
+ * Copyright (C) 2020 Google LLC
+ */
+
+#ifndef __CROS_EC_H
+#define __CROS_EC_H
+
+int cros_ec_register(struct cros_ec_device *ec_dev);
+int cros_ec_unregister(struct cros_ec_device *ec_dev);
+
+int cros_ec_suspend(struct cros_ec_device *ec_dev);
+int cros_ec_resume(struct cros_ec_device *ec_dev);
+
+bool cros_ec_handle_event(struct cros_ec_device *ec_dev);
+
+#endif /* __CROS_EC_H */

drivers/platform/chrome/cros_ec_chardev.c

@@ -13,7 +13,6 @@
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/fs.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/notifier.h>

drivers/platform/chrome/cros_ec_debugfs.c

@@ -7,7 +7,6 @@
 #include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/fs.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/platform_data/cros_ec_commands.h>

drivers/platform/chrome/cros_ec_i2c.c

@@ -14,6 +14,8 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
+#include "cros_ec.h"
+
 /**
  * Request format for protocol v3
  * byte 0	0xda (EC_COMMAND_PROTOCOL_3)

drivers/platform/chrome/cros_ec_ishtp.c

@@ -14,6 +14,8 @@
 #include <linux/platform_data/cros_ec_proto.h>
 #include <linux/intel-ish-client-if.h>
 
+#include "cros_ec.h"
+
 /*
  * ISH TX/RX ring buffer pool size
  *
@@ -76,7 +78,7 @@ struct cros_ish_in_msg {
  *
  * The writers are .reset() and .probe() function.
  */
-DECLARE_RWSEM(init_lock);
+static DECLARE_RWSEM(init_lock);
 
 /**
  * struct response_info - Encapsulate firmware response related

drivers/platform/chrome/cros_ec_lightbar.c

@@ -8,7 +8,6 @@
 #include <linux/device.h>
 #include <linux/fs.h>
 #include <linux/kobject.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>

drivers/platform/chrome/cros_ec_lpc.c

@@ -23,6 +23,7 @@
 #include <linux/printk.h>
 #include <linux/suspend.h>
 
+#include "cros_ec.h"
 #include "cros_ec_lpc_mec.h"
 
 #define DRV_NAME "cros_ec_lpcs"
@@ -396,7 +397,7 @@ static int cros_ec_lpc_probe(struct platform_device *pdev)
 	 * Some boards do not have an IRQ allotted for cros_ec_lpc,
 	 * which makes ENXIO an expected (and safe) scenario.
 	 */
-	irq = platform_get_irq(pdev, 0);
+	irq = platform_get_irq_optional(pdev, 0);
 	if (irq > 0)
 		ec_dev->irq = irq;
 	else if (irq != -ENXIO) {

drivers/platform/chrome/cros_ec_proto.c

@@ -54,8 +54,6 @@ static int send_command(struct cros_ec_device *ec_dev,
 	int ret;
 	int (*xfer_fxn)(struct cros_ec_device *ec, struct cros_ec_command *msg);
 
-	trace_cros_ec_cmd(msg);
-
 	if (ec_dev->proto_version > 2)
 		xfer_fxn = ec_dev->pkt_xfer;
 	else
@@ -72,7 +70,9 @@ static int send_command(struct cros_ec_device *ec_dev,
 		return -EIO;
 	}
 
+	trace_cros_ec_request_start(msg);
 	ret = (*xfer_fxn)(ec_dev, msg);
+	trace_cros_ec_request_done(msg, ret);
 	if (msg->result == EC_RES_IN_PROGRESS) {
 		int i;
 		struct cros_ec_command *status_msg;
@@ -95,7 +95,9 @@ static int send_command(struct cros_ec_device *ec_dev,
 		for (i = 0; i < EC_COMMAND_RETRIES; i++) {
 			usleep_range(10000, 11000);
 
+			trace_cros_ec_request_start(status_msg);
 			ret = (*xfer_fxn)(ec_dev, status_msg);
+			trace_cros_ec_request_done(status_msg, ret);
 			if (ret == -EAGAIN)
 				continue;
 			if (ret < 0)

drivers/platform/chrome/cros_ec_rpmsg.c

@@ -13,6 +13,8 @@
 #include <linux/rpmsg.h>
 #include <linux/slab.h>
 
+#include "cros_ec.h"
+
 #define EC_MSG_TIMEOUT_MS	200
 #define HOST_COMMAND_MARK	1
 #define HOST_EVENT_MARK		2

drivers/platform/chrome/cros_ec_sensorhub.c

@@ -9,7 +9,6 @@
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/module.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>
 #include <linux/platform_data/cros_ec_sensorhub.h>

drivers/platform/chrome/cros_ec_spi.c

@@ -14,6 +14,8 @@
 #include <linux/spi/spi.h>
 #include <uapi/linux/sched/types.h>
 
+#include "cros_ec.h"
+
 /* The header byte, which follows the preamble */
 #define EC_MSG_HEADER			0xec
 

drivers/platform/chrome/cros_ec_sysfs.c

@@ -8,7 +8,6 @@
 #include <linux/device.h>
 #include <linux/fs.h>
 #include <linux/kobject.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>

drivers/platform/chrome/cros_ec_trace.c

@@ -8,6 +8,11 @@
 // Generate the list using the following script:
 // sed -n 's/^#define \(EC_CMD_[[:alnum:]_]*\)\s.*/\tTRACE_SYMBOL(\1), \\/p' include/linux/platform_data/cros_ec_commands.h
 #define EC_CMDS \
+	TRACE_SYMBOL(EC_CMD_ACPI_READ), \
+	TRACE_SYMBOL(EC_CMD_ACPI_WRITE), \
+	TRACE_SYMBOL(EC_CMD_ACPI_BURST_ENABLE), \
+	TRACE_SYMBOL(EC_CMD_ACPI_BURST_DISABLE), \
+	TRACE_SYMBOL(EC_CMD_ACPI_QUERY_EVENT), \
 	TRACE_SYMBOL(EC_CMD_PROTO_VERSION), \
 	TRACE_SYMBOL(EC_CMD_HELLO), \
 	TRACE_SYMBOL(EC_CMD_GET_VERSION), \
@@ -22,6 +27,8 @@
 	TRACE_SYMBOL(EC_CMD_GET_PROTOCOL_INFO), \
 	TRACE_SYMBOL(EC_CMD_GSV_PAUSE_IN_S5), \
 	TRACE_SYMBOL(EC_CMD_GET_FEATURES), \
+	TRACE_SYMBOL(EC_CMD_GET_SKU_ID), \
+	TRACE_SYMBOL(EC_CMD_SET_SKU_ID), \
 	TRACE_SYMBOL(EC_CMD_FLASH_INFO), \
 	TRACE_SYMBOL(EC_CMD_FLASH_READ), \
 	TRACE_SYMBOL(EC_CMD_FLASH_WRITE), \
@@ -29,6 +36,8 @@
 	TRACE_SYMBOL(EC_CMD_FLASH_PROTECT), \
 	TRACE_SYMBOL(EC_CMD_FLASH_REGION_INFO), \
 	TRACE_SYMBOL(EC_CMD_VBNV_CONTEXT), \
+	TRACE_SYMBOL(EC_CMD_FLASH_SPI_INFO), \
+	TRACE_SYMBOL(EC_CMD_FLASH_SELECT), \
 	TRACE_SYMBOL(EC_CMD_PWM_GET_FAN_TARGET_RPM), \
 	TRACE_SYMBOL(EC_CMD_PWM_SET_FAN_TARGET_RPM), \
 	TRACE_SYMBOL(EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT), \
@@ -40,6 +49,8 @@
 	TRACE_SYMBOL(EC_CMD_LED_CONTROL), \
 	TRACE_SYMBOL(EC_CMD_VBOOT_HASH), \
 	TRACE_SYMBOL(EC_CMD_MOTION_SENSE_CMD), \
+	TRACE_SYMBOL(EC_CMD_FORCE_LID_OPEN), \
+	TRACE_SYMBOL(EC_CMD_CONFIG_POWER_BUTTON), \
 	TRACE_SYMBOL(EC_CMD_USB_CHARGE_SET_MODE), \
 	TRACE_SYMBOL(EC_CMD_PSTORE_INFO), \
 	TRACE_SYMBOL(EC_CMD_PSTORE_READ), \
@@ -50,6 +61,9 @@
 	TRACE_SYMBOL(EC_CMD_RTC_SET_ALARM), \
 	TRACE_SYMBOL(EC_CMD_PORT80_LAST_BOOT), \
 	TRACE_SYMBOL(EC_CMD_PORT80_READ), \
+	TRACE_SYMBOL(EC_CMD_VSTORE_INFO), \
+	TRACE_SYMBOL(EC_CMD_VSTORE_READ), \
+	TRACE_SYMBOL(EC_CMD_VSTORE_WRITE), \
 	TRACE_SYMBOL(EC_CMD_THERMAL_SET_THRESHOLD), \
 	TRACE_SYMBOL(EC_CMD_THERMAL_GET_THRESHOLD), \
 	TRACE_SYMBOL(EC_CMD_THERMAL_AUTO_FAN_CTRL), \
@@ -59,10 +73,12 @@
 	TRACE_SYMBOL(EC_CMD_MKBP_STATE), \
 	TRACE_SYMBOL(EC_CMD_MKBP_INFO), \
 	TRACE_SYMBOL(EC_CMD_MKBP_SIMULATE_KEY), \
+	TRACE_SYMBOL(EC_CMD_GET_KEYBOARD_ID), \
 	TRACE_SYMBOL(EC_CMD_MKBP_SET_CONFIG), \
 	TRACE_SYMBOL(EC_CMD_MKBP_GET_CONFIG), \
 	TRACE_SYMBOL(EC_CMD_KEYSCAN_SEQ_CTRL), \
 	TRACE_SYMBOL(EC_CMD_GET_NEXT_EVENT), \
+	TRACE_SYMBOL(EC_CMD_KEYBOARD_FACTORY_TEST), \
 	TRACE_SYMBOL(EC_CMD_TEMP_SENSOR_GET_INFO), \
 	TRACE_SYMBOL(EC_CMD_HOST_EVENT_GET_B), \
 	TRACE_SYMBOL(EC_CMD_HOST_EVENT_GET_SMI_MASK), \
@@ -73,6 +89,7 @@
 	TRACE_SYMBOL(EC_CMD_HOST_EVENT_CLEAR), \
 	TRACE_SYMBOL(EC_CMD_HOST_EVENT_SET_WAKE_MASK), \
 	TRACE_SYMBOL(EC_CMD_HOST_EVENT_CLEAR_B), \
+	TRACE_SYMBOL(EC_CMD_HOST_EVENT), \
 	TRACE_SYMBOL(EC_CMD_SWITCH_ENABLE_BKLIGHT), \
 	TRACE_SYMBOL(EC_CMD_SWITCH_ENABLE_WIRELESS), \
 	TRACE_SYMBOL(EC_CMD_GPIO_SET), \
@@ -92,36 +109,102 @@
 	TRACE_SYMBOL(EC_CMD_CHARGE_STATE), \
 	TRACE_SYMBOL(EC_CMD_CHARGE_CURRENT_LIMIT), \
 	TRACE_SYMBOL(EC_CMD_EXTERNAL_POWER_LIMIT), \
+	TRACE_SYMBOL(EC_CMD_OVERRIDE_DEDICATED_CHARGER_LIMIT), \
+	TRACE_SYMBOL(EC_CMD_HIBERNATION_DELAY), \
 	TRACE_SYMBOL(EC_CMD_HOST_SLEEP_EVENT), \
+	TRACE_SYMBOL(EC_CMD_DEVICE_EVENT), \
 	TRACE_SYMBOL(EC_CMD_SB_READ_WORD), \
 	TRACE_SYMBOL(EC_CMD_SB_WRITE_WORD), \
 	TRACE_SYMBOL(EC_CMD_SB_READ_BLOCK), \
 	TRACE_SYMBOL(EC_CMD_SB_WRITE_BLOCK), \
 	TRACE_SYMBOL(EC_CMD_BATTERY_VENDOR_PARAM), \
+	TRACE_SYMBOL(EC_CMD_SB_FW_UPDATE), \
+	TRACE_SYMBOL(EC_CMD_ENTERING_MODE), \
+	TRACE_SYMBOL(EC_CMD_I2C_PASSTHRU_PROTECT), \
+	TRACE_SYMBOL(EC_CMD_CEC_WRITE_MSG), \
+	TRACE_SYMBOL(EC_CMD_CEC_SET), \
+	TRACE_SYMBOL(EC_CMD_CEC_GET), \
 	TRACE_SYMBOL(EC_CMD_EC_CODEC), \
 	TRACE_SYMBOL(EC_CMD_EC_CODEC_DMIC), \
 	TRACE_SYMBOL(EC_CMD_EC_CODEC_I2S_RX), \
 	TRACE_SYMBOL(EC_CMD_EC_CODEC_WOV), \
 	TRACE_SYMBOL(EC_CMD_REBOOT_EC), \
 	TRACE_SYMBOL(EC_CMD_GET_PANIC_INFO), \
-	TRACE_SYMBOL(EC_CMD_ACPI_READ), \
-	TRACE_SYMBOL(EC_CMD_ACPI_WRITE), \
-	TRACE_SYMBOL(EC_CMD_ACPI_QUERY_EVENT), \
-	TRACE_SYMBOL(EC_CMD_CEC_WRITE_MSG), \
-	TRACE_SYMBOL(EC_CMD_CEC_SET), \
-	TRACE_SYMBOL(EC_CMD_CEC_GET), \
 	TRACE_SYMBOL(EC_CMD_REBOOT), \
 	TRACE_SYMBOL(EC_CMD_RESEND_RESPONSE), \
 	TRACE_SYMBOL(EC_CMD_VERSION0), \
 	TRACE_SYMBOL(EC_CMD_PD_EXCHANGE_STATUS), \
+	TRACE_SYMBOL(EC_CMD_PD_HOST_EVENT_STATUS), \
 	TRACE_SYMBOL(EC_CMD_USB_PD_CONTROL), \
 	TRACE_SYMBOL(EC_CMD_USB_PD_PORTS), \
 	TRACE_SYMBOL(EC_CMD_USB_PD_POWER_INFO), \
 	TRACE_SYMBOL(EC_CMD_CHARGE_PORT_COUNT), \
+	TRACE_SYMBOL(EC_CMD_USB_PD_FW_UPDATE), \
+	TRACE_SYMBOL(EC_CMD_USB_PD_RW_HASH_ENTRY), \
+	TRACE_SYMBOL(EC_CMD_USB_PD_DEV_INFO), \
 	TRACE_SYMBOL(EC_CMD_USB_PD_DISCOVERY), \
 	TRACE_SYMBOL(EC_CMD_PD_CHARGE_PORT_OVERRIDE), \
 	TRACE_SYMBOL(EC_CMD_PD_GET_LOG_ENTRY), \
-	TRACE_SYMBOL(EC_CMD_USB_PD_MUX_INFO)
+	TRACE_SYMBOL(EC_CMD_USB_PD_GET_AMODE), \
+	TRACE_SYMBOL(EC_CMD_USB_PD_SET_AMODE), \
+	TRACE_SYMBOL(EC_CMD_PD_WRITE_LOG_ENTRY), \
+	TRACE_SYMBOL(EC_CMD_PD_CONTROL), \
+	TRACE_SYMBOL(EC_CMD_USB_PD_MUX_INFO), \
+	TRACE_SYMBOL(EC_CMD_PD_CHIP_INFO), \
+	TRACE_SYMBOL(EC_CMD_RWSIG_CHECK_STATUS), \
+	TRACE_SYMBOL(EC_CMD_RWSIG_ACTION), \
+	TRACE_SYMBOL(EC_CMD_EFS_VERIFY), \
+	TRACE_SYMBOL(EC_CMD_GET_CROS_BOARD_INFO), \
+	TRACE_SYMBOL(EC_CMD_SET_CROS_BOARD_INFO), \
+	TRACE_SYMBOL(EC_CMD_GET_UPTIME_INFO), \
+	TRACE_SYMBOL(EC_CMD_ADD_ENTROPY), \
+	TRACE_SYMBOL(EC_CMD_ADC_READ), \
+	TRACE_SYMBOL(EC_CMD_ROLLBACK_INFO), \
+	TRACE_SYMBOL(EC_CMD_AP_RESET), \
+	TRACE_SYMBOL(EC_CMD_CR51_BASE), \
+	TRACE_SYMBOL(EC_CMD_CR51_LAST), \
+	TRACE_SYMBOL(EC_CMD_FP_PASSTHRU), \
+	TRACE_SYMBOL(EC_CMD_FP_MODE), \
+	TRACE_SYMBOL(EC_CMD_FP_INFO), \
+	TRACE_SYMBOL(EC_CMD_FP_FRAME), \
+	TRACE_SYMBOL(EC_CMD_FP_TEMPLATE), \
+	TRACE_SYMBOL(EC_CMD_FP_CONTEXT), \
+	TRACE_SYMBOL(EC_CMD_FP_STATS), \
+	TRACE_SYMBOL(EC_CMD_FP_SEED), \
+	TRACE_SYMBOL(EC_CMD_FP_ENC_STATUS), \
+	TRACE_SYMBOL(EC_CMD_TP_SELF_TEST), \
+	TRACE_SYMBOL(EC_CMD_TP_FRAME_INFO), \
+	TRACE_SYMBOL(EC_CMD_TP_FRAME_SNAPSHOT), \
+	TRACE_SYMBOL(EC_CMD_TP_FRAME_GET), \
+	TRACE_SYMBOL(EC_CMD_BATTERY_GET_STATIC), \
+	TRACE_SYMBOL(EC_CMD_BATTERY_GET_DYNAMIC), \
+	TRACE_SYMBOL(EC_CMD_CHARGER_CONTROL), \
+	TRACE_SYMBOL(EC_CMD_BOARD_SPECIFIC_BASE), \
+	TRACE_SYMBOL(EC_CMD_BOARD_SPECIFIC_LAST)
+
+/* See the enum ec_status in include/linux/platform_data/cros_ec_commands.h */
+#define EC_RESULT \
+	TRACE_SYMBOL(EC_RES_SUCCESS), \
+	TRACE_SYMBOL(EC_RES_INVALID_COMMAND), \
+	TRACE_SYMBOL(EC_RES_ERROR), \
+	TRACE_SYMBOL(EC_RES_INVALID_PARAM), \
+	TRACE_SYMBOL(EC_RES_ACCESS_DENIED), \
+	TRACE_SYMBOL(EC_RES_INVALID_RESPONSE), \
+	TRACE_SYMBOL(EC_RES_INVALID_VERSION), \
+	TRACE_SYMBOL(EC_RES_INVALID_CHECKSUM), \
+	TRACE_SYMBOL(EC_RES_IN_PROGRESS), \
+	TRACE_SYMBOL(EC_RES_UNAVAILABLE), \
+	TRACE_SYMBOL(EC_RES_TIMEOUT), \
+	TRACE_SYMBOL(EC_RES_OVERFLOW), \
+	TRACE_SYMBOL(EC_RES_INVALID_HEADER), \
+	TRACE_SYMBOL(EC_RES_REQUEST_TRUNCATED), \
+	TRACE_SYMBOL(EC_RES_RESPONSE_TOO_BIG), \
+	TRACE_SYMBOL(EC_RES_BUS_ERROR), \
+	TRACE_SYMBOL(EC_RES_BUSY), \
+	TRACE_SYMBOL(EC_RES_INVALID_HEADER_VERSION), \
+	TRACE_SYMBOL(EC_RES_INVALID_HEADER_CRC), \
+	TRACE_SYMBOL(EC_RES_INVALID_DATA_CRC), \
+	TRACE_SYMBOL(EC_RES_DUP_UNAVAILABLE)
 
 #define CREATE_TRACE_POINTS
 #include "cros_ec_trace.h"

drivers/platform/chrome/cros_ec_trace.h

@@ -18,7 +18,7 @@
 
 #include <linux/tracepoint.h>
 
-DECLARE_EVENT_CLASS(cros_ec_cmd_class,
+TRACE_EVENT(cros_ec_request_start,
 	TP_PROTO(struct cros_ec_command *cmd),
 	TP_ARGS(cmd),
 	TP_STRUCT__entry(
@@ -33,10 +33,26 @@ DECLARE_EVENT_CLASS(cros_ec_cmd_class,
 		  __print_symbolic(__entry->command, EC_CMDS))
 );
 
-
-DEFINE_EVENT(cros_ec_cmd_class, cros_ec_cmd,
-	TP_PROTO(struct cros_ec_command *cmd),
-	TP_ARGS(cmd)
+TRACE_EVENT(cros_ec_request_done,
+	TP_PROTO(struct cros_ec_command *cmd, int retval),
+	TP_ARGS(cmd, retval),
+	TP_STRUCT__entry(
+		__field(uint32_t, version)
+		__field(uint32_t, command)
+		__field(uint32_t, result)
+		__field(int, retval)
+	),
+	TP_fast_assign(
+		__entry->version = cmd->version;
+		__entry->command = cmd->command;
+		__entry->result = cmd->result;
+		__entry->retval = retval;
+	),
+	TP_printk("version: %u, command: %s, ec result: %s, retval: %d",
+		  __entry->version,
+		  __print_symbolic(__entry->command, EC_CMDS),
+		  __print_symbolic(__entry->result, EC_RESULT),
+		  __entry->retval)
 );
 
 

drivers/platform/chrome/cros_ec_vbc.c

@@ -6,7 +6,6 @@
 
 #include <linux/of.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>

drivers/platform/chrome/cros_usbpd_logger.c

@@ -6,7 +6,6 @@
  */
 
 #include <linux/ktime.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>

drivers/platform/chrome/wilco_ec/Kconfig

 # SPDX-License-Identifier: GPL-2.0-only
 config WILCO_EC
 	tristate "ChromeOS Wilco Embedded Controller"
-	depends on ACPI && X86 && CROS_EC_LPC && LEDS_CLASS
+	depends on X86 || COMPILE_TEST
+	depends on ACPI && CROS_EC_LPC && LEDS_CLASS
 	help
 	  If you say Y here, you get support for talking to the ChromeOS
 	  Wilco EC over an eSPI bus. This uses a simple byte-level protocol

drivers/platform/chrome/wilco_ec/core.c

@@ -94,7 +94,7 @@ static int wilco_ec_probe(struct platform_device *pdev)
 
 	ret = wilco_ec_add_sysfs(ec);
 	if (ret < 0) {
-		dev_err(dev, "Failed to create sysfs entries: %d", ret);
+		dev_err(dev, "Failed to create sysfs entries: %d\n", ret);
 		goto unregister_rtc;
 	}
 
@@ -137,9 +137,9 @@ static int wilco_ec_remove(struct platform_device *pdev)
 {
 	struct wilco_ec_device *ec = platform_get_drvdata(pdev);
 
+	platform_device_unregister(ec->telem_pdev);
 	platform_device_unregister(ec->charger_pdev);
 	wilco_ec_remove_sysfs(ec);
-	platform_device_unregister(ec->telem_pdev);
 	platform_device_unregister(ec->rtc_pdev);
 	if (ec->debugfs_pdev)
 		platform_device_unregister(ec->debugfs_pdev);

drivers/platform/chrome/wilco_ec/keyboard_leds.c

@@ -69,7 +69,7 @@ static int send_kbbl_msg(struct wilco_ec_device *ec,
 	ret = wilco_ec_mailbox(ec, &msg);
 	if (ret < 0) {
 		dev_err(ec->dev,
-			"Failed sending keyboard LEDs command: %d", ret);
+			"Failed sending keyboard LEDs command: %d\n", ret);
 		return ret;
 	}
 
@@ -94,7 +94,7 @@ static int set_kbbl(struct wilco_ec_device *ec, enum led_brightness brightness)
 
 	if (response.status) {
 		dev_err(ec->dev,
-			"EC reported failure sending keyboard LEDs command: %d",
+			"EC reported failure sending keyboard LEDs command: %d\n",
 			response.status);
 		return -EIO;
 	}
@@ -147,7 +147,7 @@ static int kbbl_init(struct wilco_ec_device *ec)
 
 	if (response.status) {
 		dev_err(ec->dev,
-			"EC reported failure sending keyboard LEDs command: %d",
+			"EC reported failure sending keyboard LEDs command: %d\n",
 			response.status);
 		return -EIO;
 	}
@@ -179,7 +179,7 @@ int wilco_keyboard_leds_init(struct wilco_ec_device *ec)
 	ret = kbbl_exist(ec, &leds_exist);
 	if (ret < 0) {
 		dev_err(ec->dev,
-			"Failed checking keyboard LEDs support: %d", ret);
+			"Failed checking keyboard LEDs support: %d\n", ret);
 		return ret;
 	}
 	if (!leds_exist)

drivers/platform/chrome/wilco_ec/mailbox.c

@@ -163,13 +163,13 @@ static int wilco_ec_transfer(struct wilco_ec_device *ec,
 	}
 
 	if (rs->data_size != EC_MAILBOX_DATA_SIZE) {
-		dev_dbg(ec->dev, "unexpected packet size (%u != %u)",
+		dev_dbg(ec->dev, "unexpected packet size (%u != %u)\n",
 			rs->data_size, EC_MAILBOX_DATA_SIZE);
 		return -EMSGSIZE;
 	}
 
 	if (rs->data_size < msg->response_size) {
-		dev_dbg(ec->dev, "EC didn't return enough data (%u < %zu)",
+		dev_dbg(ec->dev, "EC didn't return enough data (%u < %zu)\n",
 			rs->data_size, msg->response_size);
 		return -EMSGSIZE;
 	}

drivers/platform/chrome/wilco_ec/telemetry.c

@@ -367,7 +367,7 @@ static int telem_device_probe(struct platform_device *pdev)
 	minor = ida_alloc_max(&telem_ida, TELEM_MAX_DEV-1, GFP_KERNEL);
 	if (minor < 0) {
 		error = minor;
-		dev_err(&pdev->dev, "Failed to find minor number: %d", error);
+		dev_err(&pdev->dev, "Failed to find minor number: %d\n", error);
 		return error;
 	}
 
@@ -427,14 +427,14 @@ static int __init telem_module_init(void)
 
 	ret = class_register(&telem_class);
 	if (ret) {
-		pr_err(DRV_NAME ": Failed registering class: %d", ret);
+		pr_err(DRV_NAME ": Failed registering class: %d\n", ret);
 		return ret;
 	}
 
 	/* Request the kernel for device numbers, starting with minor=0 */
 	ret = alloc_chrdev_region(&dev_num, 0, TELEM_MAX_DEV, TELEM_DEV_NAME);
 	if (ret) {
-		pr_err(DRV_NAME ": Failed allocating dev numbers: %d", ret);
+		pr_err(DRV_NAME ": Failed allocating dev numbers: %d\n", ret);
 		goto destroy_class;
 	}
 	telem_major = MAJOR(dev_num);

drivers/power/supply/cros_usbpd-charger.c

@@ -5,7 +5,6 @@
  * Copyright (c) 2014 - 2018 Google, Inc
  */
 
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>

drivers/rtc/rtc-cros-ec.c

@@ -5,7 +5,6 @@
 // Author: Stephen Barber <smbarber@chromium.org>
 
 #include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>

include/linux/mfd/cros_ec.h

-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * ChromeOS EC multi-function device
- *
- * Copyright (C) 2012 Google, Inc
- */
-
-#ifndef __LINUX_MFD_CROS_EC_H
-#define __LINUX_MFD_CROS_EC_H
-
-#include <linux/device.h>
-
-/**
- * struct cros_ec_dev - ChromeOS EC device entry point.
- * @class_dev: Device structure used in sysfs.
- * @ec_dev: cros_ec_device structure to talk to the physical device.
- * @dev: Pointer to the platform device.
- * @debug_info: cros_ec_debugfs structure for debugging information.
- * @has_kb_wake_angle: True if at least 2 accelerometer are connected to the EC.
- * @cmd_offset: Offset to apply for each command.
- * @features: Features supported by the EC.
- */
-struct cros_ec_dev {
-	struct device class_dev;
-	struct cros_ec_device *ec_dev;
-	struct device *dev;
-	struct cros_ec_debugfs *debug_info;
-	bool has_kb_wake_angle;
-	u16 cmd_offset;
-	u32 features[2];
-};
-
-#define to_cros_ec_dev(dev)  container_of(dev, struct cros_ec_dev, class_dev)
-
-#endif /* __LINUX_MFD_CROS_EC_H */

include/linux/platform_data/cros_ec_proto.h

@@ -12,7 +12,6 @@
 #include <linux/mutex.h>
 #include <linux/notifier.h>
 
-#include <linux/mfd/cros_ec.h>
 #include <linux/platform_data/cros_ec_commands.h>
 
 #define CROS_EC_DEV_NAME	"cros_ec"
@@ -185,9 +184,27 @@ struct cros_ec_platform {
 	u16 cmd_offset;
 };
 
-int cros_ec_suspend(struct cros_ec_device *ec_dev);
+/**
+ * struct cros_ec_dev - ChromeOS EC device entry point.
+ * @class_dev: Device structure used in sysfs.
+ * @ec_dev: cros_ec_device structure to talk to the physical device.
+ * @dev: Pointer to the platform device.
+ * @debug_info: cros_ec_debugfs structure for debugging information.
+ * @has_kb_wake_angle: True if at least 2 accelerometer are connected to the EC.
+ * @cmd_offset: Offset to apply for each command.
+ * @features: Features supported by the EC.
+ */
+struct cros_ec_dev {
+	struct device class_dev;
+	struct cros_ec_device *ec_dev;
+	struct device *dev;
+	struct cros_ec_debugfs *debug_info;
+	bool has_kb_wake_angle;
+	u16 cmd_offset;
+	u32 features[2];
+};
 
-int cros_ec_resume(struct cros_ec_device *ec_dev);
+#define to_cros_ec_dev(dev)  container_of(dev, struct cros_ec_dev, class_dev)
 
 int cros_ec_prepare_tx(struct cros_ec_device *ec_dev,
 		       struct cros_ec_command *msg);
@@ -201,10 +218,6 @@ int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
 int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
 			    struct cros_ec_command *msg);
 
-int cros_ec_register(struct cros_ec_device *ec_dev);
-
-int cros_ec_unregister(struct cros_ec_device *ec_dev);
-
 int cros_ec_query_all(struct cros_ec_device *ec_dev);
 
 int cros_ec_get_next_event(struct cros_ec_device *ec_dev,
@@ -217,8 +230,6 @@ int cros_ec_check_features(struct cros_ec_dev *ec, int feature);
 
 int cros_ec_get_sensor_count(struct cros_ec_dev *ec);
 
-bool cros_ec_handle_event(struct cros_ec_device *ec_dev);
-
 /**
  * cros_ec_get_time_ns() - Return time in ns.
  *