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
mariux64 · Feb 4, 2020 · 79703e0 · 79703e0
2 parents eadc4e4 + 034dbec
commit 79703e0
Show file tree

Hide file tree

Showing 34 changed files with 190 additions and 97 deletions.
diff --git a/drivers/iio/accel/cros_ec_accel_legacy.c b/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>

diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/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>

diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/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>

diff --git a/drivers/iio/light/cros_ec_light_prox.c b/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>

diff --git a/drivers/iio/pressure/cros_ec_baro.c b/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>

diff --git a/drivers/media/platform/cros-ec-cec/cros-ec-cec.c b/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>

diff --git a/drivers/mfd/cros_ec_dev.c b/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>

diff --git a/drivers/platform/chrome/chromeos_laptop.c b/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),
 		};
@@ -97,22 +97,24 @@ 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);
 			client = i2c_new_device(adapter, info);
 		}
 	}
 
-	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;
 }

diff --git a/drivers/platform/chrome/cros_ec.c b/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

diff --git a/drivers/platform/chrome/cros_ec.h b/drivers/platform/chrome/cros_ec.h
@@ -0,0 +1,19 @@
+/* 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 */
diff --git a/drivers/platform/chrome/cros_ec_chardev.c b/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>

diff --git a/drivers/platform/chrome/cros_ec_debugfs.c b/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>

diff --git a/drivers/platform/chrome/cros_ec_i2c.c b/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)

diff --git a/drivers/platform/chrome/cros_ec_ishtp.c b/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

diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/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>

diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/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) {

diff --git a/drivers/platform/chrome/cros_ec_proto.c b/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)

diff --git a/drivers/platform/chrome/cros_ec_rpmsg.c b/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

diff --git a/drivers/platform/chrome/cros_ec_sensorhub.c b/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>

diff --git a/drivers/platform/chrome/cros_ec_spi.c b/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
 

diff --git a/drivers/platform/chrome/cros_ec_sysfs.c b/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>