[PATCH v2 0/2] Remove BQ27xxx platform interface

[PATCH v2 0/2] Remove BQ27xxx platform interface

[Andrew F. Davis]

To finish the work started in this patch[0] we needed to reorganize
the 1-wire subsystem a bit, this is done here[1]. After that is taken
this series can remove the need for a platform driver for supporting
1-wire connected BQ27xxx devices.

Thanks,
Andrew

Changes from v1:
 - Rebased on v4.13-rc1
 - [1] has been taken, this series can now be merged

[0] https://patchwork.kernel.org/patch/7684371/
[1] https://lkml.org/lkml/2017/3/16/604

Andrew F. Davis (2):
  power: supply: move HDQ interface for bq27xxx from w1 to power/supply
  power: supply: bq27xxx: move platform driver code into
    bq27xxx_battery_hdq.c

 drivers/power/supply/Kconfig               |   9 ++
 drivers/power/supply/Makefile              |   1 +
 drivers/power/supply/bq27xxx_battery.c     | 104 ----------------------
 drivers/power/supply/bq27xxx_battery_hdq.c | 135 +++++++++++++++++++++++++++++
 drivers/w1/slaves/Kconfig                  |   6 --
 drivers/w1/slaves/Makefile                 |   1 -
 drivers/w1/slaves/w1_bq27000.c             | 117 -------------------------
 include/linux/power/bq27xxx_battery.h      |  17 ----
 8 files changed, 145 insertions(+), 245 deletions(-)
 create mode 100644 drivers/power/supply/bq27xxx_battery_hdq.c
 delete mode 100644 drivers/w1/slaves/w1_bq27000.c

-- 
2.13.0

[PATCH v2 1/2] power: supply: move HDQ interface for bq27xxx from w1 to power/supply

[Andrew F. Davis]

The HDQ interface driver should be in this folder just like the I2C
interface driver. Move this driver out of drivers/w1/slave and into
drivers/power/supply.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Sebastian Reichel <sre@kernel.org>
---
 drivers/power/supply/Kconfig                                     | 9 +++++++++
 drivers/power/supply/Makefile                                    | 1 +
 .../slaves/w1_bq27000.c => power/supply/bq27xxx_battery_hdq.c}   | 2 --
 drivers/w1/slaves/Kconfig                                        | 6 ------
 drivers/w1/slaves/Makefile                                       | 1 -
 5 files changed, 10 insertions(+), 9 deletions(-)
 rename drivers/{w1/slaves/w1_bq27000.c => power/supply/bq27xxx_battery_hdq.c} (98%)

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index 969f5005669c..af6397224a82 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -198,6 +198,15 @@ config BATTERY_BQ27XXX_I2C
 	  Say Y here to enable support for batteries with BQ27xxx chips
 	  connected over an I2C bus.
 
+config BATTERY_BQ27XXX_HDQ
+	tristate "BQ27xxx HDQ support"
+	depends on BATTERY_BQ27XXX
+	depends on W1
+	default y
+	help
+	  Say Y here to enable support for batteries with BQ27xxx chips
+	  connected over an HDQ bus.
+
 config BATTERY_BQ27XXX_DT_UPDATES_NVM
 	bool "BQ27xxx support for update of NVM/flash data memory"
 	depends on BATTERY_BQ27XXX_I2C
diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
index a41f40957847..946a5e6be860 100644
--- a/drivers/power/supply/Makefile
+++ b/drivers/power/supply/Makefile
@@ -38,6 +38,7 @@ obj-$(CONFIG_BATTERY_SBS)	+= sbs-battery.o
 obj-$(CONFIG_CHARGER_SBS)	+= sbs-charger.o
 obj-$(CONFIG_BATTERY_BQ27XXX)	+= bq27xxx_battery.o
 obj-$(CONFIG_BATTERY_BQ27XXX_I2C) += bq27xxx_battery_i2c.o
+obj-$(CONFIG_BATTERY_BQ27XXX_HDQ) += bq27xxx_battery_hdq.o
 obj-$(CONFIG_BATTERY_DA9030)	+= da9030_battery.o
 obj-$(CONFIG_BATTERY_DA9052)	+= da9052-battery.o
 obj-$(CONFIG_CHARGER_DA9150)	+= da9150-charger.o
diff --git a/drivers/w1/slaves/w1_bq27000.c b/drivers/power/supply/bq27xxx_battery_hdq.c
similarity index 98%
rename from drivers/w1/slaves/w1_bq27000.c
rename to drivers/power/supply/bq27xxx_battery_hdq.c
index 8046ac45381a..f4df67eb9d2c 100644
--- a/drivers/w1/slaves/w1_bq27000.c
+++ b/drivers/power/supply/bq27xxx_battery_hdq.c
@@ -1,6 +1,4 @@
 /*
- * drivers/w1/slaves/w1_bq27000.c
- *
  * Copyright (C) 2007 Texas Instruments, Inc.
  *
  * This file is licensed under the terms of the GNU General Public License
diff --git a/drivers/w1/slaves/Kconfig b/drivers/w1/slaves/Kconfig
index fb68465908f2..dc4437683956 100644
--- a/drivers/w1/slaves/Kconfig
+++ b/drivers/w1/slaves/Kconfig
@@ -140,10 +140,4 @@ config W1_SLAVE_DS28E04
 
 	  If you are unsure, say N.
 
-config W1_SLAVE_BQ27000
-	tristate "BQ27000 slave support"
-	help
-	  Say Y here if you want to use a hdq
-	  bq27000 slave support.
-
 endmenu
diff --git a/drivers/w1/slaves/Makefile b/drivers/w1/slaves/Makefile
index 54c63e420302..e59441a5e157 100644
--- a/drivers/w1/slaves/Makefile
+++ b/drivers/w1/slaves/Makefile
@@ -15,5 +15,4 @@ obj-$(CONFIG_W1_SLAVE_DS2438)	+= w1_ds2438.o
 obj-$(CONFIG_W1_SLAVE_DS2760)	+= w1_ds2760.o
 obj-$(CONFIG_W1_SLAVE_DS2780)	+= w1_ds2780.o
 obj-$(CONFIG_W1_SLAVE_DS2781)	+= w1_ds2781.o
-obj-$(CONFIG_W1_SLAVE_BQ27000)	+= w1_bq27000.o
 obj-$(CONFIG_W1_SLAVE_DS28E04)	+= w1_ds28e04.o
-- 
2.13.0

[PATCH v2 2/2] power: supply: bq27xxx: move platform driver code into bq27xxx_battery_hdq.c

[Andrew F. Davis]

When the BQ27xxx driver was originally written the w1 subsystem only
allowed device drivers for w1 attached devices to live in the w1
subsystem. Kernel driver subsystems expect that the driver for a device
live in the directory of the subsystem for which it implements
functionality, not in the directory of the bus that it is attached. To
work around this, the BQ27xxx driver was implemented as a platform device
driver and the interface driver would instantiate this device from within
the w1 directory, then pass a w1 read callback as platform data.

As we can now have the w1 interface driver in the power/supply directory
(like we do already with the i2c interface driver) we can remove this
middle-layer platform driver.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Sebastian Reichel <sre@kernel.org>
---
 drivers/power/supply/bq27xxx_battery.c     | 104 ------------
 drivers/power/supply/bq27xxx_battery_hdq.c | 250 ++++++++++++++++-------------
 include/linux/power/bq27xxx_battery.h      |  17 --
 3 files changed, 135 insertions(+), 236 deletions(-)
 rewrite drivers/power/supply/bq27xxx_battery_hdq.c (72%)

diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index ed44439d0112..079083b31293 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -1938,110 +1938,6 @@ void bq27xxx_battery_teardown(struct bq27xxx_device_info *di)
 }
 EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown);
 
-static int bq27xxx_battery_platform_read(struct bq27xxx_device_info *di, u8 reg,
-					 bool single)
-{
-	struct device *dev = di->dev;
-	struct bq27xxx_platform_data *pdata = dev->platform_data;
-	unsigned int timeout = 3;
-	int upper, lower;
-	int temp;
-
-	if (!single) {
-		/* Make sure the value has not changed in between reading the
-		 * lower and the upper part */
-		upper = pdata->read(dev, reg + 1);
-		do {
-			temp = upper;
-			if (upper < 0)
-				return upper;
-
-			lower = pdata->read(dev, reg);
-			if (lower < 0)
-				return lower;
-
-			upper = pdata->read(dev, reg + 1);
-		} while (temp != upper && --timeout);
-
-		if (timeout == 0)
-			return -EIO;
-
-		return (upper << 8) | lower;
-	}
-
-	return pdata->read(dev, reg);
-}
-
-static int bq27xxx_battery_platform_probe(struct platform_device *pdev)
-{
-	struct bq27xxx_device_info *di;
-	struct bq27xxx_platform_data *pdata = pdev->dev.platform_data;
-
-	if (!pdata) {
-		dev_err(&pdev->dev, "no platform_data supplied\n");
-		return -EINVAL;
-	}
-
-	if (!pdata->read) {
-		dev_err(&pdev->dev, "no hdq read callback supplied\n");
-		return -EINVAL;
-	}
-
-	if (!pdata->chip) {
-		dev_err(&pdev->dev, "no device supplied\n");
-		return -EINVAL;
-	}
-
-	di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
-	if (!di)
-		return -ENOMEM;
-
-	platform_set_drvdata(pdev, di);
-
-	di->dev = &pdev->dev;
-	di->chip = pdata->chip;
-	di->name = pdata->name ?: dev_name(&pdev->dev);
-	di->bus.read = bq27xxx_battery_platform_read;
-
-	return bq27xxx_battery_setup(di);
-}
-
-static int bq27xxx_battery_platform_remove(struct platform_device *pdev)
-{
-	struct bq27xxx_device_info *di = platform_get_drvdata(pdev);
-
-	bq27xxx_battery_teardown(di);
-
-	return 0;
-}
-
-static const struct platform_device_id bq27xxx_battery_platform_id_table[] = {
-	{ "bq27000-battery", },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(platform, bq27xxx_battery_platform_id_table);
-
-#ifdef CONFIG_OF
-static const struct of_device_id bq27xxx_battery_platform_of_match_table[] = {
-	{ .compatible = "ti,bq27000" },
-	{},
-};
-MODULE_DEVICE_TABLE(of, bq27xxx_battery_platform_of_match_table);
-#endif
-
-static struct platform_driver bq27xxx_battery_platform_driver = {
-	.probe	= bq27xxx_battery_platform_probe,
-	.remove = bq27xxx_battery_platform_remove,
-	.driver = {
-		.name = "bq27000-battery",
-		.of_match_table = of_match_ptr(bq27xxx_battery_platform_of_match_table),
-	},
-	.id_table = bq27xxx_battery_platform_id_table,
-};
-module_platform_driver(bq27xxx_battery_platform_driver);
-
-MODULE_ALIAS("platform:bq27000-battery");
-
 MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
 MODULE_DESCRIPTION("BQ27xxx battery monitor driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/power/supply/bq27xxx_battery_hdq.c b/drivers/power/supply/bq27xxx_battery_hdq.c
dissimilarity index 72%
index f4df67eb9d2c..9aff896c9802 100644
--- a/drivers/power/supply/bq27xxx_battery_hdq.c
+++ b/drivers/power/supply/bq27xxx_battery_hdq.c
@@ -1,115 +1,135 @@
-/*
- * Copyright (C) 2007 Texas Instruments, Inc.
- *
- * 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
- * kind, whether express or implied.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <linux/power/bq27xxx_battery.h>
-
-#include <linux/w1.h>
-
-#define W1_FAMILY_BQ27000	0x01
-
-#define HDQ_CMD_READ	(0)
-#define HDQ_CMD_WRITE	(1<<7)
-
-static int F_ID;
-module_param(F_ID, int, S_IRUSR);
-MODULE_PARM_DESC(F_ID, "1-wire slave FID for BQ device");
-
-static int w1_bq27000_read(struct device *dev, unsigned int reg)
-{
-	u8 val;
-	struct w1_slave *sl = container_of(dev->parent, struct w1_slave, dev);
-
-	mutex_lock(&sl->master->bus_mutex);
-	w1_write_8(sl->master, HDQ_CMD_READ | reg);
-	val = w1_read_8(sl->master);
-	mutex_unlock(&sl->master->bus_mutex);
-
-	return val;
-}
-
-static struct bq27xxx_platform_data bq27000_battery_info = {
-	.read   = w1_bq27000_read,
-	.name   = "bq27000-battery",
-	.chip   = BQ27000,
-};
-
-static int w1_bq27000_add_slave(struct w1_slave *sl)
-{
-	int ret;
-	struct platform_device *pdev;
-
-	pdev = platform_device_alloc("bq27000-battery", -1);
-	if (!pdev) {
-		ret = -ENOMEM;
-		return ret;
-	}
-	ret = platform_device_add_data(pdev,
-				       &bq27000_battery_info,
-				       sizeof(bq27000_battery_info));
-	if (ret)
-		goto pdev_add_failed;
-	pdev->dev.parent = &sl->dev;
-
-	ret = platform_device_add(pdev);
-	if (ret)
-		goto pdev_add_failed;
-
-	dev_set_drvdata(&sl->dev, pdev);
-
-	goto success;
-
-pdev_add_failed:
-	platform_device_put(pdev);
-success:
-	return ret;
-}
-
-static void w1_bq27000_remove_slave(struct w1_slave *sl)
-{
-	struct platform_device *pdev = dev_get_drvdata(&sl->dev);
-
-	platform_device_unregister(pdev);
-}
-
-static struct w1_family_ops w1_bq27000_fops = {
-	.add_slave	= w1_bq27000_add_slave,
-	.remove_slave	= w1_bq27000_remove_slave,
-};
-
-static struct w1_family w1_bq27000_family = {
-	.fid = W1_FAMILY_BQ27000,
-	.fops = &w1_bq27000_fops,
-};
-
-static int __init w1_bq27000_init(void)
-{
-	if (F_ID)
-		w1_bq27000_family.fid = F_ID;
-
-	return w1_register_family(&w1_bq27000_family);
-}
-
-static void __exit w1_bq27000_exit(void)
-{
-	w1_unregister_family(&w1_bq27000_family);
-}
-
-module_init(w1_bq27000_init);
-module_exit(w1_bq27000_exit);
-
-MODULE_AUTHOR("Texas Instruments Ltd");
-MODULE_DESCRIPTION("HDQ/1-wire slave driver bq27000 battery monitor chip");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_BQ27000));
+/*
+ * BQ27xxx battery monitor HDQ/1-wire driver
+ *
+ * Copyright (C) 2007-2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/power/bq27xxx_battery.h>
+
+#include <linux/w1.h>
+
+#define W1_FAMILY_BQ27000	0x01
+
+#define HDQ_CMD_READ	(0 << 7)
+#define HDQ_CMD_WRITE	(1 << 7)
+
+static int F_ID;
+module_param(F_ID, int, S_IRUSR);
+MODULE_PARM_DESC(F_ID, "1-wire slave FID for BQ27xxx device");
+
+static int w1_bq27000_read(struct w1_slave *sl, unsigned int reg)
+{
+	u8 val;
+
+	mutex_lock(&sl->master->bus_mutex);
+	w1_write_8(sl->master, HDQ_CMD_READ | reg);
+	val = w1_read_8(sl->master);
+	mutex_unlock(&sl->master->bus_mutex);
+
+	return val;
+}
+
+static int bq27xxx_battery_hdq_read(struct bq27xxx_device_info *di, u8 reg,
+				    bool single)
+{
+	struct w1_slave *sl = dev_to_w1_slave(di->dev);
+	unsigned int timeout = 3;
+	int upper, lower;
+	int temp;
+
+	if (!single) {
+		/*
+		 * Make sure the value has not changed in between reading the
+		 * lower and the upper part
+		 */
+		upper = w1_bq27000_read(sl, reg + 1);
+		do {
+			temp = upper;
+			if (upper < 0)
+				return upper;
+
+			lower = w1_bq27000_read(sl, reg);
+			if (lower < 0)
+				return lower;
+
+			upper = w1_bq27000_read(sl, reg + 1);
+		} while (temp != upper && --timeout);
+
+		if (timeout == 0)
+			return -EIO;
+
+		return (upper << 8) | lower;
+	}
+
+	return w1_bq27000_read(sl, reg);
+}
+
+static int bq27xxx_battery_hdq_add_slave(struct w1_slave *sl)
+{
+	struct bq27xxx_device_info *di;
+
+	di = devm_kzalloc(&sl->dev, sizeof(*di), GFP_KERNEL);
+	if (!di)
+		return -ENOMEM;
+
+	dev_set_drvdata(&sl->dev, di);
+
+	di->dev = &sl->dev;
+	di->chip = BQ27000;
+	di->name = "bq27000-battery";
+	di->bus.read = bq27xxx_battery_hdq_read;
+
+	return bq27xxx_battery_setup(di);
+}
+
+static void bq27xxx_battery_hdq_remove_slave(struct w1_slave *sl)
+{
+	struct bq27xxx_device_info *di = dev_get_drvdata(&sl->dev);
+
+	bq27xxx_battery_teardown(di);
+}
+
+static struct w1_family_ops bq27xxx_battery_hdq_fops = {
+	.add_slave	= bq27xxx_battery_hdq_add_slave,
+	.remove_slave	= bq27xxx_battery_hdq_remove_slave,
+};
+
+static struct w1_family bq27xxx_battery_hdq_family = {
+	.fid = W1_FAMILY_BQ27000,
+	.fops = &bq27xxx_battery_hdq_fops,
+};
+
+static int __init bq27xxx_battery_hdq_init(void)
+{
+	if (F_ID)
+		bq27xxx_battery_hdq_family.fid = F_ID;
+
+	return w1_register_family(&bq27xxx_battery_hdq_family);
+}
+module_init(bq27xxx_battery_hdq_init);
+
+static void __exit bq27xxx_battery_hdq_exit(void)
+{
+	w1_unregister_family(&bq27xxx_battery_hdq_family);
+}
+module_exit(bq27xxx_battery_hdq_exit);
+
+MODULE_AUTHOR("Texas Instruments Ltd");
+MODULE_DESCRIPTION("BQ27xxx battery monitor HDQ/1-wire driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_BQ27000));
diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
index 11e11685dd1d..89890437f9ab 100644
--- a/include/linux/power/bq27xxx_battery.h
+++ b/include/linux/power/bq27xxx_battery.h
@@ -20,23 +20,6 @@ enum bq27xxx_chip {
 	BQ27421, /* bq27421, bq27425, bq27441, bq27621 */
 };
 
-/**
- * struct bq27xxx_plaform_data - Platform data for bq27xxx devices
- * @name: Name of the battery.
- * @chip: Chip class number of this device.
- * @read: HDQ read callback.
- *	This function should provide access to the HDQ bus the battery is
- *	connected to.
- *	The first parameter is a pointer to the battery device, the second the
- *	register to be read. The return value should either be the content of
- *	the passed register or an error value.
- */
-struct bq27xxx_platform_data {
-	const char *name;
-	enum bq27xxx_chip chip;
-	int (*read)(struct device *dev, unsigned int);
-};
-
 struct bq27xxx_device_info;
 struct bq27xxx_access_methods {
 	int (*read)(struct bq27xxx_device_info *di, u8 reg, bool single);
-- 
2.13.0

Re: [PATCH v2 1/2] power: supply: move HDQ interface for bq27xxx from w1 to power/supply

[Sebastian Reichel]

[-- Attachment #1: Type: text/plain, Size: 4015 bytes --]

Hi,

On Wed, Jul 19, 2017 at 12:04:06PM -0500, Andrew F. Davis wrote:
> The HDQ interface driver should be in this folder just like the I2C
> interface driver. Move this driver out of drivers/w1/slave and into
> drivers/power/supply.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>
> Acked-by: Pali Rohár <pali.rohar@gmail.com>
> Acked-by: Sebastian Reichel <sre@kernel.org>

Thanks, queued to power-supply's for-next branch. I prepared a
immutable branch/tag for the w1 tree and will send a pull request
for that in a minute.

-- Sebastian

>  drivers/power/supply/Kconfig                                     | 9 +++++++++
>  drivers/power/supply/Makefile                                    | 1 +
>  .../slaves/w1_bq27000.c => power/supply/bq27xxx_battery_hdq.c}   | 2 --
>  drivers/w1/slaves/Kconfig                                        | 6 ------
>  drivers/w1/slaves/Makefile                                       | 1 -
>  5 files changed, 10 insertions(+), 9 deletions(-)
>  rename drivers/{w1/slaves/w1_bq27000.c => power/supply/bq27xxx_battery_hdq.c} (98%)
> 
> diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
> index 969f5005669c..af6397224a82 100644
> --- a/drivers/power/supply/Kconfig
> +++ b/drivers/power/supply/Kconfig
> @@ -198,6 +198,15 @@ config BATTERY_BQ27XXX_I2C
>  	  Say Y here to enable support for batteries with BQ27xxx chips
>  	  connected over an I2C bus.
>  
> +config BATTERY_BQ27XXX_HDQ
> +	tristate "BQ27xxx HDQ support"
> +	depends on BATTERY_BQ27XXX
> +	depends on W1
> +	default y
> +	help
> +	  Say Y here to enable support for batteries with BQ27xxx chips
> +	  connected over an HDQ bus.
> +
>  config BATTERY_BQ27XXX_DT_UPDATES_NVM
>  	bool "BQ27xxx support for update of NVM/flash data memory"
>  	depends on BATTERY_BQ27XXX_I2C
> diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
> index a41f40957847..946a5e6be860 100644
> --- a/drivers/power/supply/Makefile
> +++ b/drivers/power/supply/Makefile
> @@ -38,6 +38,7 @@ obj-$(CONFIG_BATTERY_SBS)	+= sbs-battery.o
>  obj-$(CONFIG_CHARGER_SBS)	+= sbs-charger.o
>  obj-$(CONFIG_BATTERY_BQ27XXX)	+= bq27xxx_battery.o
>  obj-$(CONFIG_BATTERY_BQ27XXX_I2C) += bq27xxx_battery_i2c.o
> +obj-$(CONFIG_BATTERY_BQ27XXX_HDQ) += bq27xxx_battery_hdq.o
>  obj-$(CONFIG_BATTERY_DA9030)	+= da9030_battery.o
>  obj-$(CONFIG_BATTERY_DA9052)	+= da9052-battery.o
>  obj-$(CONFIG_CHARGER_DA9150)	+= da9150-charger.o
> diff --git a/drivers/w1/slaves/w1_bq27000.c b/drivers/power/supply/bq27xxx_battery_hdq.c
> similarity index 98%
> rename from drivers/w1/slaves/w1_bq27000.c
> rename to drivers/power/supply/bq27xxx_battery_hdq.c
> index 8046ac45381a..f4df67eb9d2c 100644
> --- a/drivers/w1/slaves/w1_bq27000.c
> +++ b/drivers/power/supply/bq27xxx_battery_hdq.c
> @@ -1,6 +1,4 @@
>  /*
> - * drivers/w1/slaves/w1_bq27000.c
> - *
>   * Copyright (C) 2007 Texas Instruments, Inc.
>   *
>   * This file is licensed under the terms of the GNU General Public License
> diff --git a/drivers/w1/slaves/Kconfig b/drivers/w1/slaves/Kconfig
> index fb68465908f2..dc4437683956 100644
> --- a/drivers/w1/slaves/Kconfig
> +++ b/drivers/w1/slaves/Kconfig
> @@ -140,10 +140,4 @@ config W1_SLAVE_DS28E04
>  
>  	  If you are unsure, say N.
>  
> -config W1_SLAVE_BQ27000
> -	tristate "BQ27000 slave support"
> -	help
> -	  Say Y here if you want to use a hdq
> -	  bq27000 slave support.
> -
>  endmenu
> diff --git a/drivers/w1/slaves/Makefile b/drivers/w1/slaves/Makefile
> index 54c63e420302..e59441a5e157 100644
> --- a/drivers/w1/slaves/Makefile
> +++ b/drivers/w1/slaves/Makefile
> @@ -15,5 +15,4 @@ obj-$(CONFIG_W1_SLAVE_DS2438)	+= w1_ds2438.o
>  obj-$(CONFIG_W1_SLAVE_DS2760)	+= w1_ds2760.o
>  obj-$(CONFIG_W1_SLAVE_DS2780)	+= w1_ds2780.o
>  obj-$(CONFIG_W1_SLAVE_DS2781)	+= w1_ds2781.o
> -obj-$(CONFIG_W1_SLAVE_BQ27000)	+= w1_bq27000.o
>  obj-$(CONFIG_W1_SLAVE_DS28E04)	+= w1_ds28e04.o
> -- 
> 2.13.0
> 

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

Re: [PATCH v2 2/2] power: supply: bq27xxx: move platform driver code into bq27xxx_battery_hdq.c

[Sebastian Reichel]

[-- Attachment #1: Type: text/plain, Size: 13144 bytes --]

Hi,

On Wed, Jul 19, 2017 at 12:04:07PM -0500, Andrew F. Davis wrote:
> When the BQ27xxx driver was originally written the w1 subsystem only
> allowed device drivers for w1 attached devices to live in the w1
> subsystem. Kernel driver subsystems expect that the driver for a device
> live in the directory of the subsystem for which it implements
> functionality, not in the directory of the bus that it is attached. To
> work around this, the BQ27xxx driver was implemented as a platform device
> driver and the interface driver would instantiate this device from within
> the w1 directory, then pass a w1 read callback as platform data.
> 
> As we can now have the w1 interface driver in the power/supply directory
> (like we do already with the i2c interface driver) we can remove this
> middle-layer platform driver.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>
> Acked-by: Pali Rohár <pali.rohar@gmail.com>
> Acked-by: Sebastian Reichel <sre@kernel.org>

Thanks, queued to power-supply's for-next branch.

-- Sebastian

>  drivers/power/supply/bq27xxx_battery.c     | 104 ------------
>  drivers/power/supply/bq27xxx_battery_hdq.c | 250 ++++++++++++++++-------------
>  include/linux/power/bq27xxx_battery.h      |  17 --
>  3 files changed, 135 insertions(+), 236 deletions(-)
>  rewrite drivers/power/supply/bq27xxx_battery_hdq.c (72%)
> 
> diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
> index ed44439d0112..079083b31293 100644
> --- a/drivers/power/supply/bq27xxx_battery.c
> +++ b/drivers/power/supply/bq27xxx_battery.c
> @@ -1938,110 +1938,6 @@ void bq27xxx_battery_teardown(struct bq27xxx_device_info *di)
>  }
>  EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown);
>  
> -static int bq27xxx_battery_platform_read(struct bq27xxx_device_info *di, u8 reg,
> -					 bool single)
> -{
> -	struct device *dev = di->dev;
> -	struct bq27xxx_platform_data *pdata = dev->platform_data;
> -	unsigned int timeout = 3;
> -	int upper, lower;
> -	int temp;
> -
> -	if (!single) {
> -		/* Make sure the value has not changed in between reading the
> -		 * lower and the upper part */
> -		upper = pdata->read(dev, reg + 1);
> -		do {
> -			temp = upper;
> -			if (upper < 0)
> -				return upper;
> -
> -			lower = pdata->read(dev, reg);
> -			if (lower < 0)
> -				return lower;
> -
> -			upper = pdata->read(dev, reg + 1);
> -		} while (temp != upper && --timeout);
> -
> -		if (timeout == 0)
> -			return -EIO;
> -
> -		return (upper << 8) | lower;
> -	}
> -
> -	return pdata->read(dev, reg);
> -}
> -
> -static int bq27xxx_battery_platform_probe(struct platform_device *pdev)
> -{
> -	struct bq27xxx_device_info *di;
> -	struct bq27xxx_platform_data *pdata = pdev->dev.platform_data;
> -
> -	if (!pdata) {
> -		dev_err(&pdev->dev, "no platform_data supplied\n");
> -		return -EINVAL;
> -	}
> -
> -	if (!pdata->read) {
> -		dev_err(&pdev->dev, "no hdq read callback supplied\n");
> -		return -EINVAL;
> -	}
> -
> -	if (!pdata->chip) {
> -		dev_err(&pdev->dev, "no device supplied\n");
> -		return -EINVAL;
> -	}
> -
> -	di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
> -	if (!di)
> -		return -ENOMEM;
> -
> -	platform_set_drvdata(pdev, di);
> -
> -	di->dev = &pdev->dev;
> -	di->chip = pdata->chip;
> -	di->name = pdata->name ?: dev_name(&pdev->dev);
> -	di->bus.read = bq27xxx_battery_platform_read;
> -
> -	return bq27xxx_battery_setup(di);
> -}
> -
> -static int bq27xxx_battery_platform_remove(struct platform_device *pdev)
> -{
> -	struct bq27xxx_device_info *di = platform_get_drvdata(pdev);
> -
> -	bq27xxx_battery_teardown(di);
> -
> -	return 0;
> -}
> -
> -static const struct platform_device_id bq27xxx_battery_platform_id_table[] = {
> -	{ "bq27000-battery", },
> -	{ /* sentinel */ }
> -};
> -MODULE_DEVICE_TABLE(platform, bq27xxx_battery_platform_id_table);
> -
> -#ifdef CONFIG_OF
> -static const struct of_device_id bq27xxx_battery_platform_of_match_table[] = {
> -	{ .compatible = "ti,bq27000" },
> -	{},
> -};
> -MODULE_DEVICE_TABLE(of, bq27xxx_battery_platform_of_match_table);
> -#endif
> -
> -static struct platform_driver bq27xxx_battery_platform_driver = {
> -	.probe	= bq27xxx_battery_platform_probe,
> -	.remove = bq27xxx_battery_platform_remove,
> -	.driver = {
> -		.name = "bq27000-battery",
> -		.of_match_table = of_match_ptr(bq27xxx_battery_platform_of_match_table),
> -	},
> -	.id_table = bq27xxx_battery_platform_id_table,
> -};
> -module_platform_driver(bq27xxx_battery_platform_driver);
> -
> -MODULE_ALIAS("platform:bq27000-battery");
> -
>  MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
>  MODULE_DESCRIPTION("BQ27xxx battery monitor driver");
>  MODULE_LICENSE("GPL");
> diff --git a/drivers/power/supply/bq27xxx_battery_hdq.c b/drivers/power/supply/bq27xxx_battery_hdq.c
> dissimilarity index 72%
> index f4df67eb9d2c..9aff896c9802 100644
> --- a/drivers/power/supply/bq27xxx_battery_hdq.c
> +++ b/drivers/power/supply/bq27xxx_battery_hdq.c
> @@ -1,115 +1,135 @@
> -/*
> - * Copyright (C) 2007 Texas Instruments, Inc.
> - *
> - * 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
> - * kind, whether express or implied.
> - *
> - */
> -
> -#include <linux/kernel.h>
> -#include <linux/module.h>
> -#include <linux/device.h>
> -#include <linux/types.h>
> -#include <linux/platform_device.h>
> -#include <linux/mutex.h>
> -#include <linux/power/bq27xxx_battery.h>
> -
> -#include <linux/w1.h>
> -
> -#define W1_FAMILY_BQ27000	0x01
> -
> -#define HDQ_CMD_READ	(0)
> -#define HDQ_CMD_WRITE	(1<<7)
> -
> -static int F_ID;
> -module_param(F_ID, int, S_IRUSR);
> -MODULE_PARM_DESC(F_ID, "1-wire slave FID for BQ device");
> -
> -static int w1_bq27000_read(struct device *dev, unsigned int reg)
> -{
> -	u8 val;
> -	struct w1_slave *sl = container_of(dev->parent, struct w1_slave, dev);
> -
> -	mutex_lock(&sl->master->bus_mutex);
> -	w1_write_8(sl->master, HDQ_CMD_READ | reg);
> -	val = w1_read_8(sl->master);
> -	mutex_unlock(&sl->master->bus_mutex);
> -
> -	return val;
> -}
> -
> -static struct bq27xxx_platform_data bq27000_battery_info = {
> -	.read   = w1_bq27000_read,
> -	.name   = "bq27000-battery",
> -	.chip   = BQ27000,
> -};
> -
> -static int w1_bq27000_add_slave(struct w1_slave *sl)
> -{
> -	int ret;
> -	struct platform_device *pdev;
> -
> -	pdev = platform_device_alloc("bq27000-battery", -1);
> -	if (!pdev) {
> -		ret = -ENOMEM;
> -		return ret;
> -	}
> -	ret = platform_device_add_data(pdev,
> -				       &bq27000_battery_info,
> -				       sizeof(bq27000_battery_info));
> -	if (ret)
> -		goto pdev_add_failed;
> -	pdev->dev.parent = &sl->dev;
> -
> -	ret = platform_device_add(pdev);
> -	if (ret)
> -		goto pdev_add_failed;
> -
> -	dev_set_drvdata(&sl->dev, pdev);
> -
> -	goto success;
> -
> -pdev_add_failed:
> -	platform_device_put(pdev);
> -success:
> -	return ret;
> -}
> -
> -static void w1_bq27000_remove_slave(struct w1_slave *sl)
> -{
> -	struct platform_device *pdev = dev_get_drvdata(&sl->dev);
> -
> -	platform_device_unregister(pdev);
> -}
> -
> -static struct w1_family_ops w1_bq27000_fops = {
> -	.add_slave	= w1_bq27000_add_slave,
> -	.remove_slave	= w1_bq27000_remove_slave,
> -};
> -
> -static struct w1_family w1_bq27000_family = {
> -	.fid = W1_FAMILY_BQ27000,
> -	.fops = &w1_bq27000_fops,
> -};
> -
> -static int __init w1_bq27000_init(void)
> -{
> -	if (F_ID)
> -		w1_bq27000_family.fid = F_ID;
> -
> -	return w1_register_family(&w1_bq27000_family);
> -}
> -
> -static void __exit w1_bq27000_exit(void)
> -{
> -	w1_unregister_family(&w1_bq27000_family);
> -}
> -
> -module_init(w1_bq27000_init);
> -module_exit(w1_bq27000_exit);
> -
> -MODULE_AUTHOR("Texas Instruments Ltd");
> -MODULE_DESCRIPTION("HDQ/1-wire slave driver bq27000 battery monitor chip");
> -MODULE_LICENSE("GPL");
> -MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_BQ27000));
> +/*
> + * BQ27xxx battery monitor HDQ/1-wire driver
> + *
> + * Copyright (C) 2007-2017 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * 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.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether express or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/device.h>
> +#include <linux/types.h>
> +#include <linux/platform_device.h>
> +#include <linux/mutex.h>
> +#include <linux/power/bq27xxx_battery.h>
> +
> +#include <linux/w1.h>
> +
> +#define W1_FAMILY_BQ27000	0x01
> +
> +#define HDQ_CMD_READ	(0 << 7)
> +#define HDQ_CMD_WRITE	(1 << 7)
> +
> +static int F_ID;
> +module_param(F_ID, int, S_IRUSR);
> +MODULE_PARM_DESC(F_ID, "1-wire slave FID for BQ27xxx device");
> +
> +static int w1_bq27000_read(struct w1_slave *sl, unsigned int reg)
> +{
> +	u8 val;
> +
> +	mutex_lock(&sl->master->bus_mutex);
> +	w1_write_8(sl->master, HDQ_CMD_READ | reg);
> +	val = w1_read_8(sl->master);
> +	mutex_unlock(&sl->master->bus_mutex);
> +
> +	return val;
> +}
> +
> +static int bq27xxx_battery_hdq_read(struct bq27xxx_device_info *di, u8 reg,
> +				    bool single)
> +{
> +	struct w1_slave *sl = dev_to_w1_slave(di->dev);
> +	unsigned int timeout = 3;
> +	int upper, lower;
> +	int temp;
> +
> +	if (!single) {
> +		/*
> +		 * Make sure the value has not changed in between reading the
> +		 * lower and the upper part
> +		 */
> +		upper = w1_bq27000_read(sl, reg + 1);
> +		do {
> +			temp = upper;
> +			if (upper < 0)
> +				return upper;
> +
> +			lower = w1_bq27000_read(sl, reg);
> +			if (lower < 0)
> +				return lower;
> +
> +			upper = w1_bq27000_read(sl, reg + 1);
> +		} while (temp != upper && --timeout);
> +
> +		if (timeout == 0)
> +			return -EIO;
> +
> +		return (upper << 8) | lower;
> +	}
> +
> +	return w1_bq27000_read(sl, reg);
> +}
> +
> +static int bq27xxx_battery_hdq_add_slave(struct w1_slave *sl)
> +{
> +	struct bq27xxx_device_info *di;
> +
> +	di = devm_kzalloc(&sl->dev, sizeof(*di), GFP_KERNEL);
> +	if (!di)
> +		return -ENOMEM;
> +
> +	dev_set_drvdata(&sl->dev, di);
> +
> +	di->dev = &sl->dev;
> +	di->chip = BQ27000;
> +	di->name = "bq27000-battery";
> +	di->bus.read = bq27xxx_battery_hdq_read;
> +
> +	return bq27xxx_battery_setup(di);
> +}
> +
> +static void bq27xxx_battery_hdq_remove_slave(struct w1_slave *sl)
> +{
> +	struct bq27xxx_device_info *di = dev_get_drvdata(&sl->dev);
> +
> +	bq27xxx_battery_teardown(di);
> +}
> +
> +static struct w1_family_ops bq27xxx_battery_hdq_fops = {
> +	.add_slave	= bq27xxx_battery_hdq_add_slave,
> +	.remove_slave	= bq27xxx_battery_hdq_remove_slave,
> +};
> +
> +static struct w1_family bq27xxx_battery_hdq_family = {
> +	.fid = W1_FAMILY_BQ27000,
> +	.fops = &bq27xxx_battery_hdq_fops,
> +};
> +
> +static int __init bq27xxx_battery_hdq_init(void)
> +{
> +	if (F_ID)
> +		bq27xxx_battery_hdq_family.fid = F_ID;
> +
> +	return w1_register_family(&bq27xxx_battery_hdq_family);
> +}
> +module_init(bq27xxx_battery_hdq_init);
> +
> +static void __exit bq27xxx_battery_hdq_exit(void)
> +{
> +	w1_unregister_family(&bq27xxx_battery_hdq_family);
> +}
> +module_exit(bq27xxx_battery_hdq_exit);
> +
> +MODULE_AUTHOR("Texas Instruments Ltd");
> +MODULE_DESCRIPTION("BQ27xxx battery monitor HDQ/1-wire driver");
> +MODULE_LICENSE("GPL");
> +MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_BQ27000));
> diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
> index 11e11685dd1d..89890437f9ab 100644
> --- a/include/linux/power/bq27xxx_battery.h
> +++ b/include/linux/power/bq27xxx_battery.h
> @@ -20,23 +20,6 @@ enum bq27xxx_chip {
>  	BQ27421, /* bq27421, bq27425, bq27441, bq27621 */
>  };
>  
> -/**
> - * struct bq27xxx_plaform_data - Platform data for bq27xxx devices
> - * @name: Name of the battery.
> - * @chip: Chip class number of this device.
> - * @read: HDQ read callback.
> - *	This function should provide access to the HDQ bus the battery is
> - *	connected to.
> - *	The first parameter is a pointer to the battery device, the second the
> - *	register to be read. The return value should either be the content of
> - *	the passed register or an error value.
> - */
> -struct bq27xxx_platform_data {
> -	const char *name;
> -	enum bq27xxx_chip chip;
> -	int (*read)(struct device *dev, unsigned int);
> -};
> -
>  struct bq27xxx_device_info;
>  struct bq27xxx_access_methods {
>  	int (*read)(struct bq27xxx_device_info *di, u8 reg, bool single);
> -- 
> 2.13.0
> 

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

Re: [PATCH v2 1/2] power: supply: move HDQ interface for bq27xxx from w1 to power/supply

[Sebastian Reichel]

[-- Attachment #1: Type: text/plain, Size: 5795 bytes --]

Hi Greg & Evgeniy,

Here is a signed immutable branch for Andrew's patch, which moves
bq27000 w1 driver to the power-supply subsystem. I guess git will
figure everything out without this, but better safe than sorry :)

The following changes since commit 520eccdfe187591a51ea9ab4c1a024ae4d0f68d9:

  Linux 4.13-rc2 (2017-07-23 16:15:17 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git tags/ib-w1-bq27000-4.14

for you to fetch changes up to 55a9db679183bcf85a6e5c44a4f92f158bb6f03d:

  power: supply: move HDQ interface for bq27xxx from w1 to power/supply (2017-07-25 15:17:39 +0200)

----------------------------------------------------------------
immutable branch moving bq2700 driver from w1 to power-supply

----------------------------------------------------------------
Andrew F. Davis (1):
      power: supply: move HDQ interface for bq27xxx from w1 to power/supply

 drivers/power/supply/Kconfig                                     | 9 +++++++++
 drivers/power/supply/Makefile                                    | 1 +
 .../slaves/w1_bq27000.c => power/supply/bq27xxx_battery_hdq.c}   | 2 --
 drivers/w1/slaves/Kconfig                                        | 6 ------
 drivers/w1/slaves/Makefile                                       | 1 -
 5 files changed, 10 insertions(+), 9 deletions(-)
 rename drivers/{w1/slaves/w1_bq27000.c => power/supply/bq27xxx_battery_hdq.c} (98%)

-- Sebastian

On Tue, Jul 25, 2017 at 03:30:22PM +0200, Sebastian Reichel wrote:
> Hi,
> 
> On Wed, Jul 19, 2017 at 12:04:06PM -0500, Andrew F. Davis wrote:
> > The HDQ interface driver should be in this folder just like the I2C
> > interface driver. Move this driver out of drivers/w1/slave and into
> > drivers/power/supply.
> > 
> > Signed-off-by: Andrew F. Davis <afd@ti.com>
> > Acked-by: Pali Rohár <pali.rohar@gmail.com>
> > Acked-by: Sebastian Reichel <sre@kernel.org>
> 
> Thanks, queued to power-supply's for-next branch. I prepared a
> immutable branch/tag for the w1 tree and will send a pull request
> for that in a minute.
> 
> -- Sebastian
> 
> >  drivers/power/supply/Kconfig                                     | 9 +++++++++
> >  drivers/power/supply/Makefile                                    | 1 +
> >  .../slaves/w1_bq27000.c => power/supply/bq27xxx_battery_hdq.c}   | 2 --
> >  drivers/w1/slaves/Kconfig                                        | 6 ------
> >  drivers/w1/slaves/Makefile                                       | 1 -
> >  5 files changed, 10 insertions(+), 9 deletions(-)
> >  rename drivers/{w1/slaves/w1_bq27000.c => power/supply/bq27xxx_battery_hdq.c} (98%)
> > 
> > diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
> > index 969f5005669c..af6397224a82 100644
> > --- a/drivers/power/supply/Kconfig
> > +++ b/drivers/power/supply/Kconfig
> > @@ -198,6 +198,15 @@ config BATTERY_BQ27XXX_I2C
> >  	  Say Y here to enable support for batteries with BQ27xxx chips
> >  	  connected over an I2C bus.
> >  
> > +config BATTERY_BQ27XXX_HDQ
> > +	tristate "BQ27xxx HDQ support"
> > +	depends on BATTERY_BQ27XXX
> > +	depends on W1
> > +	default y
> > +	help
> > +	  Say Y here to enable support for batteries with BQ27xxx chips
> > +	  connected over an HDQ bus.
> > +
> >  config BATTERY_BQ27XXX_DT_UPDATES_NVM
> >  	bool "BQ27xxx support for update of NVM/flash data memory"
> >  	depends on BATTERY_BQ27XXX_I2C
> > diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
> > index a41f40957847..946a5e6be860 100644
> > --- a/drivers/power/supply/Makefile
> > +++ b/drivers/power/supply/Makefile
> > @@ -38,6 +38,7 @@ obj-$(CONFIG_BATTERY_SBS)	+= sbs-battery.o
> >  obj-$(CONFIG_CHARGER_SBS)	+= sbs-charger.o
> >  obj-$(CONFIG_BATTERY_BQ27XXX)	+= bq27xxx_battery.o
> >  obj-$(CONFIG_BATTERY_BQ27XXX_I2C) += bq27xxx_battery_i2c.o
> > +obj-$(CONFIG_BATTERY_BQ27XXX_HDQ) += bq27xxx_battery_hdq.o
> >  obj-$(CONFIG_BATTERY_DA9030)	+= da9030_battery.o
> >  obj-$(CONFIG_BATTERY_DA9052)	+= da9052-battery.o
> >  obj-$(CONFIG_CHARGER_DA9150)	+= da9150-charger.o
> > diff --git a/drivers/w1/slaves/w1_bq27000.c b/drivers/power/supply/bq27xxx_battery_hdq.c
> > similarity index 98%
> > rename from drivers/w1/slaves/w1_bq27000.c
> > rename to drivers/power/supply/bq27xxx_battery_hdq.c
> > index 8046ac45381a..f4df67eb9d2c 100644
> > --- a/drivers/w1/slaves/w1_bq27000.c
> > +++ b/drivers/power/supply/bq27xxx_battery_hdq.c
> > @@ -1,6 +1,4 @@
> >  /*
> > - * drivers/w1/slaves/w1_bq27000.c
> > - *
> >   * Copyright (C) 2007 Texas Instruments, Inc.
> >   *
> >   * This file is licensed under the terms of the GNU General Public License
> > diff --git a/drivers/w1/slaves/Kconfig b/drivers/w1/slaves/Kconfig
> > index fb68465908f2..dc4437683956 100644
> > --- a/drivers/w1/slaves/Kconfig
> > +++ b/drivers/w1/slaves/Kconfig
> > @@ -140,10 +140,4 @@ config W1_SLAVE_DS28E04
> >  
> >  	  If you are unsure, say N.
> >  
> > -config W1_SLAVE_BQ27000
> > -	tristate "BQ27000 slave support"
> > -	help
> > -	  Say Y here if you want to use a hdq
> > -	  bq27000 slave support.
> > -
> >  endmenu
> > diff --git a/drivers/w1/slaves/Makefile b/drivers/w1/slaves/Makefile
> > index 54c63e420302..e59441a5e157 100644
> > --- a/drivers/w1/slaves/Makefile
> > +++ b/drivers/w1/slaves/Makefile
> > @@ -15,5 +15,4 @@ obj-$(CONFIG_W1_SLAVE_DS2438)	+= w1_ds2438.o
> >  obj-$(CONFIG_W1_SLAVE_DS2760)	+= w1_ds2760.o
> >  obj-$(CONFIG_W1_SLAVE_DS2780)	+= w1_ds2780.o
> >  obj-$(CONFIG_W1_SLAVE_DS2781)	+= w1_ds2781.o
> > -obj-$(CONFIG_W1_SLAVE_BQ27000)	+= w1_bq27000.o
> >  obj-$(CONFIG_W1_SLAVE_DS28E04)	+= w1_ds28e04.o
> > -- 
> > 2.13.0
> > 



[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

Re: [PATCH v2 1/2] power: supply: move HDQ interface for bq27xxx from w1 to power/supply

[Evgeniy Polyakov]

Hi everyone

Sorry for long delay

25.07.2017, 16:48, "Sebastian Reichel" <sebastian.reichel@collabora.co.uk>:
> Here is a signed immutable branch for Andrew's patch, which moves
> bq27000 w1 driver to the power-supply subsystem. I guess git will
> figure everything out without this, but better safe than sorry :)
>
> The following changes since commit 520eccdfe187591a51ea9ab4c1a024ae4d0f68d9:
>
>   Linux 4.13-rc2 (2017-07-23 16:15:17 -0700)
>
> are available in the git repository at:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git tags/ib-w1-bq27000-4.14
>
> for you to fetch changes up to 55a9db679183bcf85a6e5c44a4f92f158bb6f03d:
>
>   power: supply: move HDQ interface for bq27xxx from w1 to power/supply (2017-07-25 15:17:39 +0200)

Greg, should it be pulled into your tree or submitted as a separate pull request or as set of patches?
Either way looks good to me, please get it into your tree.