Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/ker…

…nel/git/wsa/linux

Pull second i2c update from Wolfram Sang:
 "As promised, here is my 2nd pull request for I2C, containing:

   - removal of the attach_adapter callback, converting its last user

   - removal of any __deprecated usage within I2C

   - one email address update

   - some SPDX conversion"

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: don't use any __deprecated handling anymore
  i2c: use SPDX identifier for Renesas drivers
  i2c: ocores: update my email address
  i2c: remove deprecated attach_adapter callback
  macintosh: therm_windtunnel: drop using attach_adapter

Documentation/i2c/busses/i2c-ocores

@@ -4,7 +4,7 @@ Supported adapters:
   * OpenCores.org I2C controller by Richard Herveille (see datasheet link)
     https://opencores.org/project/i2c/overview
 
-Author: Peter Korsgaard <[email protected]>
+Author: Peter Korsgaard <[email protected]>
 
 Description
 -----------

MAINTAINERS

@@ -10787,7 +10787,7 @@ F:	arch/*/boot/dts/
 F:	include/dt-bindings/
 
 OPENCORES I2C BUS DRIVER
-M:	Peter Korsgaard <[email protected]>
+M:	Peter Korsgaard <[email protected]>
 L:	[email protected]
 S:	Maintained
 F:	Documentation/i2c/busses/i2c-ocores

drivers/i2c/Makefile

@@ -18,4 +18,3 @@ obj-$(CONFIG_I2C_STUB)		+= i2c-stub.o
 obj-$(CONFIG_I2C_SLAVE_EEPROM)	+= i2c-slave-eeprom.o
 
 ccflags-$(CONFIG_I2C_DEBUG_CORE) := -DDEBUG
-CFLAGS_i2c-core-base.o := -Wno-deprecated-declarations

drivers/i2c/busses/i2c-emev2.c

@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * I2C driver for the Renesas EMEV2 SoC
  *
  * Copyright (C) 2015 Wolfram Sang <[email protected]>
  * Copyright 2013 Codethink Ltd.
  * Copyright 2010-2015 Renesas Electronics Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
  */
 
 #include <linux/clk.h>

drivers/i2c/busses/i2c-highlander.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas Solutions Highlander FPGA I2C/SMBus support.
  *
@@ -6,10 +7,6 @@
  * Copyright (C) 2008  Paul Mundt
  * Copyright (C) 2008  Renesas Solutions Corp.
  * Copyright (C) 2008  Atom Create Engineering Co., Ltd.
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License version 2. See the file "COPYING" in the main directory
- * of this archive for more details.
  */
 #include <linux/module.h>
 #include <linux/interrupt.h>

drivers/i2c/busses/i2c-ocores.c

@@ -2,7 +2,7 @@
  * i2c-ocores.c: I2C bus driver for OpenCores I2C controller
  * (https://opencores.org/project/i2c/overview)
  *
- * Peter Korsgaard <[email protected]>
+ * Peter Korsgaard <[email protected]>
  *
  * Support for the GRLIB port of the controller by
  * Andreas Larsson <[email protected]>
@@ -576,7 +576,7 @@ static struct platform_driver ocores_i2c_driver = {
 
 module_platform_driver(ocores_i2c_driver);
 
-MODULE_AUTHOR("Peter Korsgaard <[email protected]>");
+MODULE_AUTHOR("Peter Korsgaard <[email protected]>");
 MODULE_DESCRIPTION("OpenCores I2C bus driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:ocores-i2c");

drivers/i2c/busses/i2c-rcar.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the Renesas R-Car I2C unit
  *
@@ -9,15 +10,6 @@
  *
  * This file is based on the drivers/i2c/busses/i2c-sh7760.c
  * (c) 2005-2008 MSC Vertriebsges.m.b.H, Manuel Lauss <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 #include <linux/bitops.h>
 #include <linux/clk.h>

drivers/i2c/busses/i2c-riic.c

@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas RIIC driver
  *
  * Copyright (C) 2013 Wolfram Sang <[email protected]>
  * Copyright (C) 2013 Renesas Solutions Corp.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 /*

drivers/i2c/busses/i2c-sh_mobile.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SuperH Mobile I2C Controller
  *
@@ -7,15 +8,6 @@
  *
  * Portions of the code based on out-of-tree driver i2c-sh7343.c
  * Copyright (c) 2006 Carlos Munoz <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/clk.h>

drivers/i2c/i2c-core-base.c

@@ -62,7 +62,7 @@
 
 /*
  * core_lock protects i2c_adapter_idr, and guarantees that device detection,
- * deletion of detected devices, and attach_adapter calls are serialized
+ * deletion of detected devices are serialized
  */
 static DEFINE_MUTEX(core_lock);
 static DEFINE_IDR(i2c_adapter_idr);
@@ -1124,15 +1124,6 @@ static int i2c_do_add_adapter(struct i2c_driver *driver,
 	/* Detect supported devices on that bus, and instantiate them */
 	i2c_detect(adap, driver);
 
-	/* Let legacy drivers scan this bus for matching devices */
-	if (driver->attach_adapter) {
-		dev_warn(&adap->dev, "%s: attach_adapter method is deprecated\n",
-			 driver->driver.name);
-		dev_warn(&adap->dev,
-			 "Please use another way to instantiate your i2c_client\n");
-		/* We ignore the return code; if it fails, too bad */
-		driver->attach_adapter(adap);
-	}
 	return 0;
 }
 

drivers/macintosh/therm_windtunnel.c

@@ -432,7 +432,6 @@ static struct i2c_driver g4fan_driver = {
 	.driver = {
 		.name	= "therm_windtunnel",
 	},
-	.attach_adapter = do_attach,
 	.probe		= do_probe,
 	.remove		= do_remove,
 	.id_table	= therm_windtunnel_id,
@@ -445,7 +444,29 @@ static struct i2c_driver g4fan_driver = {
 
 static int therm_of_probe(struct platform_device *dev)
 {
-	return i2c_add_driver( &g4fan_driver );
+	struct i2c_adapter *adap;
+	int ret, i = 0;
+
+	adap = i2c_get_adapter(0);
+	if (!adap)
+		return -EPROBE_DEFER;
+
+	ret = i2c_add_driver(&g4fan_driver);
+	if (ret) {
+		i2c_put_adapter(adap);
+		return ret;
+	}
+
+	/* We assume Macs have consecutive I2C bus numbers starting at 0 */
+	while (adap) {
+		do_attach(adap);
+		if (x.running)
+			return 0;
+		i2c_put_adapter(adap);
+		adap = i2c_get_adapter(++i);
+	}
+
+	return -ENODEV;
 }
 
 static int

include/linux/i2c.h

@@ -231,7 +231,6 @@ enum i2c_alert_protocol {
 /**
  * struct i2c_driver - represent an I2C device driver
  * @class: What kind of i2c device we instantiate (for detect)
- * @attach_adapter: Callback for bus addition (deprecated)
  * @probe: Callback for device binding - soon to be deprecated
  * @probe_new: New callback for device binding
  * @remove: Callback for device unbinding
@@ -268,11 +267,6 @@ enum i2c_alert_protocol {
 struct i2c_driver {
 	unsigned int class;
 
-	/* Notifies the driver that a new bus has appeared. You should avoid
-	 * using this, it will be removed in a near future.
-	 */
-	int (*attach_adapter)(struct i2c_adapter *) __deprecated;
-
 	/* Standard driver model interfaces */
 	int (*probe)(struct i2c_client *, const struct i2c_device_id *);
 	int (*remove)(struct i2c_client *);

include/linux/platform_data/i2c-ocores.h

@@ -1,7 +1,7 @@
 /*
  * i2c-ocores.h - definitions for the i2c-ocores interface
  *
- * Peter Korsgaard <[email protected]>
+ * Peter Korsgaard <[email protected]>
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2.  This program is licensed "as is" without any warranty of any