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SubjectRe: [PATCH v1 25/33] ata/drivers/ahci_imx: Switch to new of thermal API
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On 11/07/2022 01:18, Damien Le Moal wrote:
> On 7/11/22 06:24, Daniel Lezcano wrote:
>> The thermal OF code has a new API allowing to migrate the OF
>> initialization to a simpler approach.
>>
>> Use this new API.
>>
>> Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
>> ---
>> drivers/ata/ahci_imx.c | 15 ++++++++++-----
>> 1 file changed, 10 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c
>> index 79aa9f285312..5ad9a890e71a 100644
>> --- a/drivers/ata/ahci_imx.c
>> +++ b/drivers/ata/ahci_imx.c
>> @@ -327,7 +327,7 @@ static int read_adc_sum(void *dev, u16 rtune_ctl_reg, void __iomem * mmio)
>> }
>>
>> /* SATA AHCI temperature monitor */
>> -static int sata_ahci_read_temperature(void *dev, int *temp)
>> +static int __sata_ahci_read_temperature(void *dev, int *temp)
>> {
>> u16 mpll_test_reg, rtune_ctl_reg, dac_ctl_reg, read_sum;
>> u32 str1, str2, str3, str4;
>> @@ -416,6 +416,11 @@ static int sata_ahci_read_temperature(void *dev, int *temp)
>> return 0;
>> }
>>
>> +static int sata_ahci_read_temperature(struct thermal_zone_device *tz, int *temp)
>> +{
>> + return __sata_ahci_read_temperature(tz->devdata, temp);
>> +}
>> +
>> static ssize_t sata_ahci_show_temp(struct device *dev,
>> struct device_attribute *da,
>> char *buf)
>> @@ -423,14 +428,14 @@ static ssize_t sata_ahci_show_temp(struct device *dev,
>> unsigned int temp = 0;
>> int err;
>>
>> - err = sata_ahci_read_temperature(dev, &temp);
>> + err = __sata_ahci_read_temperature(dev, &temp);
>> if (err < 0)
>> return err;
>>
>> return sprintf(buf, "%u\n", temp);
>> }
>
> I do not see why the above changes are necessary. Please explain.

sata_ahci_read_temperature() is used by sata_ahci_show_temp() also.

So in order to change the function prototype for the get_temp ops which
does not take a void* but a thermal_zone_device* structure, this
function wraps the call.

Do you prefer sata_ahci_read_temperature() becomes sata_ahci_get_temp()
and keep __sata_ahci_read_temperature() name untouched ?

>>
>> -static const struct thermal_zone_of_device_ops fsl_sata_ahci_of_thermal_ops = {
>> +static struct thermal_zone_device_ops fsl_sata_ahci_of_thermal_ops = {
>
> Why remove the const ?
>
>> .get_temp = sata_ahci_read_temperature,
>> };
>>
>> @@ -1131,8 +1136,8 @@ static int imx_ahci_probe(struct platform_device *pdev)
>> ret = PTR_ERR(hwmon_dev);
>> goto disable_clk;
>> }
>> - devm_thermal_zone_of_sensor_register(hwmon_dev, 0, hwmon_dev,
>> - &fsl_sata_ahci_of_thermal_ops);
>> + devm_thermal_of_zone_register(hwmon_dev, 0, hwmon_dev,
>> + &fsl_sata_ahci_of_thermal_ops);
>
> This is the only change that seems necessary.
>
>> dev_info(dev, "%s: sensor 'sata_ahci'\n", dev_name(hwmon_dev));
>> }
>>
>
> And it is hard to review a patch without the full series for context.
> Please send all patches next time.
>
>


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