Re: [PATCH 2/2] hwmon: (lm95245) Convert to use devm_hwmon_device_register_with_groups

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Hi Jean,

On 02/22/2014 05:32 AM, Jean Delvare wrote:
Hi Guenter,

On Thu,  6 Feb 2014 20:32:39 -0800, Guenter Roeck wrote:
Simplify code, reduce code size, and attach hwmon attributes
to hwmon device.

Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
  drivers/hwmon/lm95245.c |   80 +++++++++++++++--------------------------------
  1 file changed, 26 insertions(+), 54 deletions(-)

diff --git a/drivers/hwmon/lm95245.c b/drivers/hwmon/lm95245.c
index c58d431..482ce14 100644
--- a/drivers/hwmon/lm95245.c
+++ b/drivers/hwmon/lm95245.c
(...)
@@ -149,7 +149,7 @@ static struct lm95245_data *lm95245_update_device(struct device *dev)
  		+ msecs_to_jiffies(data->interval)) || !data->valid) {
  		int i;

-		dev_dbg(&client->dev, "Updating lm95245 data.\n");
+		dev_dbg(dev, "Updating lm95245 data.\n");

Or just kill it, it's a mostly pointless debug message anyway.


Good idea. I'll do that in a follow-up patch.

  		for (i = 0; i < ARRAY_SIZE(lm95245_reg_address); i++)
  			data->regs[i]
  			  = i2c_smbus_read_byte_data(client,
(...)
@@ -286,8 +286,8 @@ static ssize_t set_crit_hyst(struct device *dev, struct device_attribute *attr,
  			     const char *buf, size_t count)
  {
  	struct lm95245_data *data = lm95245_update_device(dev);
-	struct i2c_client *client = to_i2c_client(dev);
  	int index = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = data->client;

I'm curious why you're swapping these lines? I can't find a rationale
for it, and it makes the patch (very slightly) larger.


Habit I picked up from one of the Intel maintainers ... long variable names
first. It makes the code look a bit nicer.

  	unsigned long val;
  	long hyst;

(...)
@@ -468,49 +463,27 @@ static void lm95245_init_client(struct i2c_client *client)
  	}
  }

-static int lm95245_probe(struct i2c_client *new_client,
+static int lm95245_probe(struct i2c_client *client,
                          const struct i2c_device_id *id)

Halleluiah.

All the rest looks alright.

Reviewed-by: Jean Delvare <jdelvare@xxxxxxx>


Thanks!

Guenter


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