* [PATCH v2] drivers: Update drv260x driver
@ 2016-12-09 21:45 Jingkui Wang
2016-12-11 7:22 ` Dmitry Torokhov
0 siblings, 1 reply; 3+ messages in thread
From: Jingkui Wang @ 2016-12-09 21:45 UTC (permalink / raw)
To: linux-input; +Cc: dmitry.torokhov, Dan Murphy, Jingkui Wang, linux-kernel
Update driver drv260x to use generic device properties
Remove platform data and corresponding header file
Signed-off-by: Jingkui Wang <jkwang@google.com>
---
Changes in v2:
- Delete unused header file
drivers/input/misc/drv260x.c | 43 ++++++-----------------------
include/linux/platform_data/drv260x-pdata.h | 28 -------------------
2 files changed, 8 insertions(+), 63 deletions(-)
delete mode 100644 include/linux/platform_data/drv260x-pdata.h
diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c
index 2adfd86c..4f448ba 100644
--- a/drivers/input/misc/drv260x.c
+++ b/drivers/input/misc/drv260x.c
@@ -19,7 +19,6 @@
#include <linux/input.h>
#include <linux/module.h>
#include <linux/of_gpio.h>
-#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/delay.h>
@@ -27,7 +26,6 @@
#include <linux/regulator/consumer.h>
#include <dt-bindings/input/ti-drv260x.h>
-#include <linux/platform_data/drv260x-pdata.h>
#define DRV260X_STATUS 0x0
#define DRV260X_MODE 0x1
@@ -468,52 +466,39 @@ static const struct regmap_config drv260x_regmap_config = {
.cache_type = REGCACHE_NONE,
};
-#ifdef CONFIG_OF
-static int drv260x_parse_dt(struct device *dev,
+static int drv260x_read_device_property(struct device *dev,
struct drv260x_data *haptics)
{
- struct device_node *np = dev->of_node;
unsigned int voltage;
int error;
- error = of_property_read_u32(np, "mode", &haptics->mode);
+ error = device_property_read_u32(dev, "mode", &haptics->mode);
if (error) {
dev_err(dev, "%s: No entry for mode\n", __func__);
return error;
}
- error = of_property_read_u32(np, "library-sel", &haptics->library);
+ error = device_property_read_u32(dev, "library-sel", &haptics->library);
if (error) {
dev_err(dev, "%s: No entry for library selection\n",
__func__);
return error;
}
- error = of_property_read_u32(np, "vib-rated-mv", &voltage);
+ error = device_property_read_u32(dev, "vib-rated-mv", &voltage);
if (!error)
haptics->rated_voltage = drv260x_calculate_voltage(voltage);
-
- error = of_property_read_u32(np, "vib-overdrive-mv", &voltage);
+ error = device_property_read_u32(dev, "vib-overdrive-mv", &voltage);
if (!error)
haptics->overdrive_voltage = drv260x_calculate_voltage(voltage);
return 0;
}
-#else
-static inline int drv260x_parse_dt(struct device *dev,
- struct drv260x_data *haptics)
-{
- dev_err(dev, "no platform data defined\n");
-
- return -EINVAL;
-}
-#endif
static int drv260x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- const struct drv260x_platform_data *pdata = dev_get_platdata(&client->dev);
struct drv260x_data *haptics;
int error;
@@ -524,21 +509,9 @@ static int drv260x_probe(struct i2c_client *client,
haptics->rated_voltage = DRV260X_DEF_OD_CLAMP_VOLT;
haptics->rated_voltage = DRV260X_DEF_RATED_VOLT;
- if (pdata) {
- haptics->mode = pdata->mode;
- haptics->library = pdata->library_selection;
- if (pdata->vib_overdrive_voltage)
- haptics->overdrive_voltage = drv260x_calculate_voltage(pdata->vib_overdrive_voltage);
- if (pdata->vib_rated_voltage)
- haptics->rated_voltage = drv260x_calculate_voltage(pdata->vib_rated_voltage);
- } else if (client->dev.of_node) {
- error = drv260x_parse_dt(&client->dev, haptics);
- if (error)
- return error;
- } else {
- dev_err(&client->dev, "Platform data not set\n");
- return -ENODEV;
- }
+ error = drv260x_read_device_property(&client->dev, haptics);
+ if (error)
+ return error;
if (haptics->mode < DRV260X_LRA_MODE ||
diff --git a/include/linux/platform_data/drv260x-pdata.h b/include/linux/platform_data/drv260x-pdata.h
deleted file mode 100644
index 0a03b09..0000000
--- a/include/linux/platform_data/drv260x-pdata.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Platform data for DRV260X haptics driver family
- *
- * Author: Dan Murphy <dmurphy@ti.com>
- *
- * Copyright: (C) 2014 Texas Instruments, Inc.
- *
- * 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 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.
- */
-
-#ifndef _LINUX_DRV260X_PDATA_H
-#define _LINUX_DRV260X_PDATA_H
-
-struct drv260x_platform_data {
- u32 library_selection;
- u32 mode;
- u32 vib_rated_voltage;
- u32 vib_overdrive_voltage;
-};
-
-#endif
--
2.6.6
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] drivers: Update drv260x driver
2016-12-09 21:45 [PATCH v2] drivers: Update drv260x driver Jingkui Wang
@ 2016-12-11 7:22 ` Dmitry Torokhov
[not found] ` <CACMZmvUfkt3Fv4Lr42-mnbzYsUdAuC98XUzz2kg4c9bRLX2rJA@mail.gmail.com>
0 siblings, 1 reply; 3+ messages in thread
From: Dmitry Torokhov @ 2016-12-11 7:22 UTC (permalink / raw)
To: Jingkui Wang; +Cc: linux-input, Dan Murphy, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 7125 bytes --]
Hi Jingkui,
On Fri, Dec 09, 2016 at 01:45:26PM -0800, Jingkui Wang wrote:
> Update driver drv260x to use generic device properties
> Remove platform data and corresponding header file
Please next time come up with more descriptive subject than "drivers:
Update drv260x driver": when scanning commit messages person shoudl be
able to gauge whether the change is interesting or not.
> -static int drv260x_parse_dt(struct device *dev,
> +static int drv260x_read_device_property(struct device *dev,
> struct drv260x_data *haptics)
> {
> - struct device_node *np = dev->of_node;
> unsigned int voltage;
> int error;
>
> - error = of_property_read_u32(np, "mode", &haptics->mode);
> + error = device_property_read_u32(dev, "mode", &haptics->mode);
> if (error) {
> dev_err(dev, "%s: No entry for mode\n", __func__);
> return error;
> }
>
> - error = of_property_read_u32(np, "library-sel", &haptics->library);
> + error = device_property_read_u32(dev, "library-sel", &haptics->library);
> if (error) {
> dev_err(dev, "%s: No entry for library selection\n",
> __func__);
> return error;
> }
Now that platform code is gone there it makes no sense separating
reading properties from validating the settings. Does the following
version look OK to you (it needs a patch introducing temporary in
probe() function, you'll find it attached)?
Thanks.
--
Dmitry
Input: drv260x - use generic device properties
From: Jingkui Wang <jkwang@google.com>
Update driver drv260x to use generic device properties so that it can be
used on non-DT systems. We also remove platform data as generic device
properties work on static board code as well.
Signed-off-by: Jingkui Wang <jkwang@google.com>
Patchwork-Id: 9469075
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/input/misc/drv260x.c | 80 ++++++---------------------
include/linux/platform_data/drv260x-pdata.h | 28 ---------
2 files changed, 19 insertions(+), 89 deletions(-)
delete mode 100644 include/linux/platform_data/drv260x-pdata.h
diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c
index 18c266c..11664d7 100644
--- a/drivers/input/misc/drv260x.c
+++ b/drivers/input/misc/drv260x.c
@@ -18,8 +18,6 @@
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/module.h>
-#include <linux/of_gpio.h>
-#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/delay.h>
@@ -27,7 +25,6 @@
#include <linux/regulator/consumer.h>
#include <dt-bindings/input/ti-drv260x.h>
-#include <linux/platform_data/drv260x-pdata.h>
#define DRV260X_STATUS 0x0
#define DRV260X_MODE 0x1
@@ -468,54 +465,12 @@ static const struct regmap_config drv260x_regmap_config = {
.cache_type = REGCACHE_NONE,
};
-#ifdef CONFIG_OF
-static int drv260x_parse_dt(struct device *dev,
- struct drv260x_data *haptics)
-{
- struct device_node *np = dev->of_node;
- unsigned int voltage;
- int error;
-
- error = of_property_read_u32(np, "mode", &haptics->mode);
- if (error) {
- dev_err(dev, "%s: No entry for mode\n", __func__);
- return error;
- }
-
- error = of_property_read_u32(np, "library-sel", &haptics->library);
- if (error) {
- dev_err(dev, "%s: No entry for library selection\n",
- __func__);
- return error;
- }
-
- error = of_property_read_u32(np, "vib-rated-mv", &voltage);
- if (!error)
- haptics->rated_voltage = drv260x_calculate_voltage(voltage);
-
-
- error = of_property_read_u32(np, "vib-overdrive-mv", &voltage);
- if (!error)
- haptics->overdrive_voltage = drv260x_calculate_voltage(voltage);
-
- return 0;
-}
-#else
-static inline int drv260x_parse_dt(struct device *dev,
- struct drv260x_data *haptics)
-{
- dev_err(dev, "no platform data defined\n");
-
- return -EINVAL;
-}
-#endif
-
static int drv260x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- const struct drv260x_platform_data *pdata = dev_get_platdata(&client->dev);
struct device *dev = &client->dev;
struct drv260x_data *haptics;
+ u32 voltage;
int error;
haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL);
@@ -525,29 +480,24 @@ static int drv260x_probe(struct i2c_client *client,
haptics->overdrive_voltage = DRV260X_DEF_OD_CLAMP_VOLT;
haptics->rated_voltage = DRV260X_DEF_RATED_VOLT;
- if (pdata) {
- haptics->mode = pdata->mode;
- haptics->library = pdata->library_selection;
- if (pdata->vib_overdrive_voltage)
- haptics->overdrive_voltage = drv260x_calculate_voltage(pdata->vib_overdrive_voltage);
- if (pdata->vib_rated_voltage)
- haptics->rated_voltage = drv260x_calculate_voltage(pdata->vib_rated_voltage);
- } else if (client->dev.of_node) {
- error = drv260x_parse_dt(&client->dev, haptics);
- if (error)
- return error;
- } else {
- dev_err(dev, "Platform data not set\n");
- return -ENODEV;
+ error = device_property_read_u32(dev, "mode", &haptics->mode);
+ if (error) {
+ dev_err(dev, "Can't fetch 'mode' property: %d\n", error);
+ return error;
}
-
if (haptics->mode < DRV260X_LRA_MODE ||
haptics->mode > DRV260X_ERM_MODE) {
dev_err(dev, "Vibrator mode is invalid: %i\n", haptics->mode);
return -EINVAL;
}
+ error = device_property_read_u32(dev, "library-sel", &haptics->library);
+ if (error) {
+ dev_err(dev, "Can't fetch 'library-sel' property: %d\n", error);
+ return error;
+ }
+
if (haptics->library < DRV260X_LIB_EMPTY ||
haptics->library > DRV260X_ERM_LIB_F) {
dev_err(dev,
@@ -569,6 +519,14 @@ static int drv260x_probe(struct i2c_client *client,
return -EINVAL;
}
+ error = device_property_read_u32(dev, "vib-rated-mv", &voltage);
+ haptics->rated_voltage = error ? DRV260X_DEF_RATED_VOLT :
+ drv260x_calculate_voltage(voltage);
+
+ error = device_property_read_u32(dev, "vib-overdrive-mv", &voltage);
+ haptics->overdrive_voltage = error ? DRV260X_DEF_OD_CLAMP_VOLT :
+ drv260x_calculate_voltage(voltage);
+
haptics->regulator = devm_regulator_get(dev, "vbat");
if (IS_ERR(haptics->regulator)) {
error = PTR_ERR(haptics->regulator);
diff --git a/include/linux/platform_data/drv260x-pdata.h b/include/linux/platform_data/drv260x-pdata.h
deleted file mode 100644
index 0a03b09..0000000
--- a/include/linux/platform_data/drv260x-pdata.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Platform data for DRV260X haptics driver family
- *
- * Author: Dan Murphy <dmurphy@ti.com>
- *
- * Copyright: (C) 2014 Texas Instruments, Inc.
- *
- * 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 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.
- */
-
-#ifndef _LINUX_DRV260X_PDATA_H
-#define _LINUX_DRV260X_PDATA_H
-
-struct drv260x_platform_data {
- u32 library_selection;
- u32 mode;
- u32 vib_rated_voltage;
- u32 vib_overdrive_voltage;
-};
-
-#endif
[-- Attachment #2: drv260x-use-temp-dev.patch --]
[-- Type: text/x-diff, Size: 4665 bytes --]
Input: drv260x - use temporary for &client->dev
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Let's introduce a temporary for "client->dev" is probe() as we use
it quite a few times and "dev" is shorter.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/input/misc/drv260x.c | 39 ++++++++++++++++-----------------------
1 file changed, 16 insertions(+), 23 deletions(-)
diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c
index 9789d4f..18c266c 100644
--- a/drivers/input/misc/drv260x.c
+++ b/drivers/input/misc/drv260x.c
@@ -514,10 +514,11 @@ static int drv260x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
const struct drv260x_platform_data *pdata = dev_get_platdata(&client->dev);
+ struct device *dev = &client->dev;
struct drv260x_data *haptics;
int error;
- haptics = devm_kzalloc(&client->dev, sizeof(*haptics), GFP_KERNEL);
+ haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL);
if (!haptics)
return -ENOMEM;
@@ -536,22 +537,20 @@ static int drv260x_probe(struct i2c_client *client,
if (error)
return error;
} else {
- dev_err(&client->dev, "Platform data not set\n");
+ dev_err(dev, "Platform data not set\n");
return -ENODEV;
}
if (haptics->mode < DRV260X_LRA_MODE ||
haptics->mode > DRV260X_ERM_MODE) {
- dev_err(&client->dev,
- "Vibrator mode is invalid: %i\n",
- haptics->mode);
+ dev_err(dev, "Vibrator mode is invalid: %i\n", haptics->mode);
return -EINVAL;
}
if (haptics->library < DRV260X_LIB_EMPTY ||
haptics->library > DRV260X_ERM_LIB_F) {
- dev_err(&client->dev,
+ dev_err(dev,
"Library value is invalid: %i\n", haptics->library);
return -EINVAL;
}
@@ -559,40 +558,37 @@ static int drv260x_probe(struct i2c_client *client,
if (haptics->mode == DRV260X_LRA_MODE &&
haptics->library != DRV260X_LIB_EMPTY &&
haptics->library != DRV260X_LIB_LRA) {
- dev_err(&client->dev,
- "LRA Mode with ERM Library mismatch\n");
+ dev_err(dev, "LRA Mode with ERM Library mismatch\n");
return -EINVAL;
}
if (haptics->mode == DRV260X_ERM_MODE &&
(haptics->library == DRV260X_LIB_EMPTY ||
haptics->library == DRV260X_LIB_LRA)) {
- dev_err(&client->dev,
- "ERM Mode with LRA Library mismatch\n");
+ dev_err(dev, "ERM Mode with LRA Library mismatch\n");
return -EINVAL;
}
- haptics->regulator = devm_regulator_get(&client->dev, "vbat");
+ haptics->regulator = devm_regulator_get(dev, "vbat");
if (IS_ERR(haptics->regulator)) {
error = PTR_ERR(haptics->regulator);
- dev_err(&client->dev,
- "unable to get regulator, error: %d\n", error);
+ dev_err(dev, "unable to get regulator, error: %d\n", error);
return error;
}
- haptics->enable_gpio = devm_gpiod_get_optional(&client->dev, "enable",
+ haptics->enable_gpio = devm_gpiod_get_optional(dev, "enable",
GPIOD_OUT_HIGH);
if (IS_ERR(haptics->enable_gpio))
return PTR_ERR(haptics->enable_gpio);
- haptics->input_dev = devm_input_allocate_device(&client->dev);
+ haptics->input_dev = devm_input_allocate_device(dev);
if (!haptics->input_dev) {
dev_err(&client->dev, "Failed to allocate input device\n");
return -ENOMEM;
}
haptics->input_dev->name = "drv260x:haptics";
- haptics->input_dev->dev.parent = client->dev.parent;
+ haptics->input_dev->dev.parent = dev->parent;
haptics->input_dev->close = drv260x_close;
input_set_drvdata(haptics->input_dev, haptics);
input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
@@ -600,8 +596,7 @@ static int drv260x_probe(struct i2c_client *client,
error = input_ff_create_memless(haptics->input_dev, NULL,
drv260x_haptics_play);
if (error) {
- dev_err(&client->dev, "input_ff_create() failed: %d\n",
- error);
+ dev_err(dev, "input_ff_create() failed: %d\n", error);
return error;
}
@@ -613,21 +608,19 @@ static int drv260x_probe(struct i2c_client *client,
haptics->regmap = devm_regmap_init_i2c(client, &drv260x_regmap_config);
if (IS_ERR(haptics->regmap)) {
error = PTR_ERR(haptics->regmap);
- dev_err(&client->dev, "Failed to allocate register map: %d\n",
- error);
+ dev_err(dev, "Failed to allocate register map: %d\n", error);
return error;
}
error = drv260x_init(haptics);
if (error) {
- dev_err(&client->dev, "Device init failed: %d\n", error);
+ dev_err(dev, "Device init failed: %d\n", error);
return error;
}
error = input_register_device(haptics->input_dev);
if (error) {
- dev_err(&client->dev, "couldn't register input device: %d\n",
- error);
+ dev_err(dev, "couldn't register input device: %d\n", error);
return error;
}
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] drivers: Update drv260x driver
[not found] ` <CACMZmvUfkt3Fv4Lr42-mnbzYsUdAuC98XUzz2kg4c9bRLX2rJA@mail.gmail.com>
@ 2016-12-12 19:05 ` Jingkui Wang
0 siblings, 0 replies; 3+ messages in thread
From: Jingkui Wang @ 2016-12-12 19:05 UTC (permalink / raw)
To: Dmitry Torokhov; +Cc: linux-input, Dan Murphy, linux-kernel
Opps, sorry for containing html.
Thanks again.
Jingkui
On Mon, Dec 12, 2016 at 11:02 AM, Jingkui Wang <jkwang@google.com> wrote:
> It looks great! Really appreciate your help.
>
> Thanks,
> Jingkui Wang
>
> On Sat, Dec 10, 2016 at 11:22 PM, Dmitry Torokhov
> <dmitry.torokhov@gmail.com> wrote:
>>
>> Hi Jingkui,
>>
>> On Fri, Dec 09, 2016 at 01:45:26PM -0800, Jingkui Wang wrote:
>> > Update driver drv260x to use generic device properties
>> > Remove platform data and corresponding header file
>>
>> Please next time come up with more descriptive subject than "drivers:
>> Update drv260x driver": when scanning commit messages person shoudl be
>> able to gauge whether the change is interesting or not.
>>
>> > -static int drv260x_parse_dt(struct device *dev,
>> > +static int drv260x_read_device_property(struct device *dev,
>> > struct drv260x_data *haptics)
>> > {
>> > - struct device_node *np = dev->of_node;
>> > unsigned int voltage;
>> > int error;
>> >
>> > - error = of_property_read_u32(np, "mode", &haptics->mode);
>> > + error = device_property_read_u32(dev, "mode", &haptics->mode);
>> > if (error) {
>> > dev_err(dev, "%s: No entry for mode\n", __func__);
>> > return error;
>> > }
>> >
>> > - error = of_property_read_u32(np, "library-sel",
>> > &haptics->library);
>> > + error = device_property_read_u32(dev, "library-sel",
>> > &haptics->library);
>> > if (error) {
>> > dev_err(dev, "%s: No entry for library selection\n",
>> > __func__);
>> > return error;
>> > }
>>
>> Now that platform code is gone there it makes no sense separating
>> reading properties from validating the settings. Does the following
>> version look OK to you (it needs a patch introducing temporary in
>> probe() function, you'll find it attached)?
>>
>> Thanks.
>>
>> --
>> Dmitry
>>
>>
>> Input: drv260x - use generic device properties
>>
>> From: Jingkui Wang <jkwang@google.com>
>>
>> Update driver drv260x to use generic device properties so that it can be
>> used on non-DT systems. We also remove platform data as generic device
>> properties work on static board code as well.
>>
>> Signed-off-by: Jingkui Wang <jkwang@google.com>
>> Patchwork-Id: 9469075
>> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
>> ---
>> drivers/input/misc/drv260x.c | 80
>> ++++++---------------------
>> include/linux/platform_data/drv260x-pdata.h | 28 ---------
>> 2 files changed, 19 insertions(+), 89 deletions(-)
>> delete mode 100644 include/linux/platform_data/drv260x-pdata.h
>>
>> diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c
>> index 18c266c..11664d7 100644
>> --- a/drivers/input/misc/drv260x.c
>> +++ b/drivers/input/misc/drv260x.c
>> @@ -18,8 +18,6 @@
>> #include <linux/i2c.h>
>> #include <linux/input.h>
>> #include <linux/module.h>
>> -#include <linux/of_gpio.h>
>> -#include <linux/platform_device.h>
>> #include <linux/regmap.h>
>> #include <linux/slab.h>
>> #include <linux/delay.h>
>> @@ -27,7 +25,6 @@
>> #include <linux/regulator/consumer.h>
>>
>> #include <dt-bindings/input/ti-drv260x.h>
>> -#include <linux/platform_data/drv260x-pdata.h>
>>
>> #define DRV260X_STATUS 0x0
>> #define DRV260X_MODE 0x1
>> @@ -468,54 +465,12 @@ static const struct regmap_config
>> drv260x_regmap_config = {
>> .cache_type = REGCACHE_NONE,
>> };
>>
>> -#ifdef CONFIG_OF
>> -static int drv260x_parse_dt(struct device *dev,
>> - struct drv260x_data *haptics)
>> -{
>> - struct device_node *np = dev->of_node;
>> - unsigned int voltage;
>> - int error;
>> -
>> - error = of_property_read_u32(np, "mode", &haptics->mode);
>> - if (error) {
>> - dev_err(dev, "%s: No entry for mode\n", __func__);
>> - return error;
>> - }
>> -
>> - error = of_property_read_u32(np, "library-sel",
>> &haptics->library);
>> - if (error) {
>> - dev_err(dev, "%s: No entry for library selection\n",
>> - __func__);
>> - return error;
>> - }
>> -
>> - error = of_property_read_u32(np, "vib-rated-mv", &voltage);
>> - if (!error)
>> - haptics->rated_voltage =
>> drv260x_calculate_voltage(voltage);
>> -
>> -
>> - error = of_property_read_u32(np, "vib-overdrive-mv", &voltage);
>> - if (!error)
>> - haptics->overdrive_voltage =
>> drv260x_calculate_voltage(voltage);
>> -
>> - return 0;
>> -}
>> -#else
>> -static inline int drv260x_parse_dt(struct device *dev,
>> - struct drv260x_data *haptics)
>> -{
>> - dev_err(dev, "no platform data defined\n");
>> -
>> - return -EINVAL;
>> -}
>> -#endif
>> -
>> static int drv260x_probe(struct i2c_client *client,
>> const struct i2c_device_id *id)
>> {
>> - const struct drv260x_platform_data *pdata =
>> dev_get_platdata(&client->dev);
>> struct device *dev = &client->dev;
>> struct drv260x_data *haptics;
>> + u32 voltage;
>> int error;
>>
>> haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL);
>> @@ -525,29 +480,24 @@ static int drv260x_probe(struct i2c_client *client,
>> haptics->overdrive_voltage = DRV260X_DEF_OD_CLAMP_VOLT;
>> haptics->rated_voltage = DRV260X_DEF_RATED_VOLT;
>>
>> - if (pdata) {
>> - haptics->mode = pdata->mode;
>> - haptics->library = pdata->library_selection;
>> - if (pdata->vib_overdrive_voltage)
>> - haptics->overdrive_voltage =
>> drv260x_calculate_voltage(pdata->vib_overdrive_voltage);
>> - if (pdata->vib_rated_voltage)
>> - haptics->rated_voltage =
>> drv260x_calculate_voltage(pdata->vib_rated_voltage);
>> - } else if (client->dev.of_node) {
>> - error = drv260x_parse_dt(&client->dev, haptics);
>> - if (error)
>> - return error;
>> - } else {
>> - dev_err(dev, "Platform data not set\n");
>> - return -ENODEV;
>> + error = device_property_read_u32(dev, "mode", &haptics->mode);
>> + if (error) {
>> + dev_err(dev, "Can't fetch 'mode' property: %d\n", error);
>> + return error;
>> }
>>
>> -
>> if (haptics->mode < DRV260X_LRA_MODE ||
>> haptics->mode > DRV260X_ERM_MODE) {
>> dev_err(dev, "Vibrator mode is invalid: %i\n",
>> haptics->mode);
>> return -EINVAL;
>> }
>>
>> + error = device_property_read_u32(dev, "library-sel",
>> &haptics->library);
>> + if (error) {
>> + dev_err(dev, "Can't fetch 'library-sel' property: %d\n",
>> error);
>> + return error;
>> + }
>> +
>> if (haptics->library < DRV260X_LIB_EMPTY ||
>> haptics->library > DRV260X_ERM_LIB_F) {
>> dev_err(dev,
>> @@ -569,6 +519,14 @@ static int drv260x_probe(struct i2c_client *client,
>> return -EINVAL;
>> }
>>
>> + error = device_property_read_u32(dev, "vib-rated-mv", &voltage);
>> + haptics->rated_voltage = error ? DRV260X_DEF_RATED_VOLT :
>> +
>> drv260x_calculate_voltage(voltage);
>> +
>> + error = device_property_read_u32(dev, "vib-overdrive-mv",
>> &voltage);
>> + haptics->overdrive_voltage = error ? DRV260X_DEF_OD_CLAMP_VOLT :
>> +
>> drv260x_calculate_voltage(voltage);
>> +
>> haptics->regulator = devm_regulator_get(dev, "vbat");
>> if (IS_ERR(haptics->regulator)) {
>> error = PTR_ERR(haptics->regulator);
>> diff --git a/include/linux/platform_data/drv260x-pdata.h
>> b/include/linux/platform_data/drv260x-pdata.h
>> deleted file mode 100644
>> index 0a03b09..0000000
>> --- a/include/linux/platform_data/drv260x-pdata.h
>> +++ /dev/null
>> @@ -1,28 +0,0 @@
>> -/*
>> - * Platform data for DRV260X haptics driver family
>> - *
>> - * Author: Dan Murphy <dmurphy@ti.com>
>> - *
>> - * Copyright: (C) 2014 Texas Instruments, Inc.
>> - *
>> - * 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 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.
>> - */
>> -
>> -#ifndef _LINUX_DRV260X_PDATA_H
>> -#define _LINUX_DRV260X_PDATA_H
>> -
>> -struct drv260x_platform_data {
>> - u32 library_selection;
>> - u32 mode;
>> - u32 vib_rated_voltage;
>> - u32 vib_overdrive_voltage;
>> -};
>> -
>> -#endif
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-12-12 19:05 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-12-09 21:45 [PATCH v2] drivers: Update drv260x driver Jingkui Wang
2016-12-11 7:22 ` Dmitry Torokhov
[not found] ` <CACMZmvUfkt3Fv4Lr42-mnbzYsUdAuC98XUzz2kg4c9bRLX2rJA@mail.gmail.com>
2016-12-12 19:05 ` Jingkui Wang
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