diff mbox series

[v2,3/3] hwmon: (adt7475) Use enum chips when loading attenuator settings

Message ID 20220317223051.1227110-4-chris.packham@alliedtelesis.co.nz (mailing list archive)
State Superseded
Headers show
Series hwmon: (adt7475) pin configuration | expand

Commit Message

Chris Packham March 17, 2022, 10:30 p.m. UTC
Simplify load_attenuators() by making use of enum chips instead of int.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---

Notes:
    Changes in v2:
    - New

 drivers/hwmon/adt7475.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Guenter Roeck March 18, 2022, 2:32 p.m. UTC | #1
On Fri, Mar 18, 2022 at 11:30:50AM +1300, Chris Packham wrote:
> Simplify load_attenuators() by making use of enum chips instead of int.
> 

That isn't the only thing the patch is doing.

> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
> 
> Notes:
>     Changes in v2:
>     - New
> 
>  drivers/hwmon/adt7475.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
> index 6de501de41b2..ebe4a85eb62e 100644
> --- a/drivers/hwmon/adt7475.c
> +++ b/drivers/hwmon/adt7475.c
> @@ -1569,7 +1569,7 @@ static int set_property_bit(const struct i2c_client *client, char *property,
>  	return ret;
>  }
>  
> -static int load_attenuators(const struct i2c_client *client, int chip,
> +static int load_attenuators(const struct i2c_client *client, enum chips chip,
>  			    struct adt7475_data *data)
>  {
>  	int ret;
> @@ -1588,7 +1588,7 @@ static int load_attenuators(const struct i2c_client *client, int chip,
>  						data->config4);
>  		if (ret < 0)
>  			return ret;
> -	} else if (chip == adt7473 || chip == adt7475) {
> +	} else {

This is the real change. Well, in theory. It doesn't really make a difference,
it is just (currently) unnecessary but clarifies that the following code only
applies to the two chips. It may be better to replace the if/else with a switch
statement to clarify this. Dropping the conditional would not require to change
the parameter type. That only really adds value if you also use a switch
statement (without dummy default).

Thanks,
Guenter

>  		set_property_bit(client, "adi,bypass-attenuator-in1",
>  				 &data->config2, 5);
>
Chris Packham March 21, 2022, 12:27 a.m. UTC | #2
On 19/03/22 03:32, Guenter Roeck wrote:
> On Fri, Mar 18, 2022 at 11:30:50AM +1300, Chris Packham wrote:
>> Simplify load_attenuators() by making use of enum chips instead of int.
>>
> That isn't the only thing the patch is doing.
>
>> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
>> ---
>>
>> Notes:
>>      Changes in v2:
>>      - New
>>
>>   drivers/hwmon/adt7475.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
>> index 6de501de41b2..ebe4a85eb62e 100644
>> --- a/drivers/hwmon/adt7475.c
>> +++ b/drivers/hwmon/adt7475.c
>> @@ -1569,7 +1569,7 @@ static int set_property_bit(const struct i2c_client *client, char *property,
>>   	return ret;
>>   }
>>   
>> -static int load_attenuators(const struct i2c_client *client, int chip,
>> +static int load_attenuators(const struct i2c_client *client, enum chips chip,
>>   			    struct adt7475_data *data)
>>   {
>>   	int ret;
>> @@ -1588,7 +1588,7 @@ static int load_attenuators(const struct i2c_client *client, int chip,
>>   						data->config4);
>>   		if (ret < 0)
>>   			return ret;
>> -	} else if (chip == adt7473 || chip == adt7475) {
>> +	} else {
> This is the real change. Well, in theory. It doesn't really make a difference,
> it is just (currently) unnecessary but clarifies that the following code only
> applies to the two chips. It may be better to replace the if/else with a switch
> statement to clarify this. Dropping the conditional would not require to change
> the parameter type. That only really adds value if you also use a switch
> statement (without dummy default).

I've written a v3 that updates this to use a switch statement but I'll 
wait to send it in case there is any feedback on the first 2 patches.

> Thanks,
> Guenter
>
>>   		set_property_bit(client, "adi,bypass-attenuator-in1",
>>   				 &data->config2, 5);
>>
diff mbox series

Patch

diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
index 6de501de41b2..ebe4a85eb62e 100644
--- a/drivers/hwmon/adt7475.c
+++ b/drivers/hwmon/adt7475.c
@@ -1569,7 +1569,7 @@  static int set_property_bit(const struct i2c_client *client, char *property,
 	return ret;
 }
 
-static int load_attenuators(const struct i2c_client *client, int chip,
+static int load_attenuators(const struct i2c_client *client, enum chips chip,
 			    struct adt7475_data *data)
 {
 	int ret;
@@ -1588,7 +1588,7 @@  static int load_attenuators(const struct i2c_client *client, int chip,
 						data->config4);
 		if (ret < 0)
 			return ret;
-	} else if (chip == adt7473 || chip == adt7475) {
+	} else {
 		set_property_bit(client, "adi,bypass-attenuator-in1",
 				 &data->config2, 5);