On 11/04/2014 05:22 PM, Ivan T. Ivanov wrote:
>
> On Tue, 2014-11-04 at 17:06 +0200, Stanimir Varbanov wrote:
>> Hi Ivan,
>>
>>
> +
>>> + switch (subtype) {
>>> + case PM8941_SUBTYPE:
>>> + *name = "pm8941";
>>> + break;
>>
>> The XXX_SUBTYPE seems are continuous why not make it an const array and
>> get the name by index in this array?
>>
>
> Yep, it _seems_ to be continuous. But, yes. probably using array will
> more compact way to represent this.
>
> <snip>
>
>>> @@ -28,11 +144,27 @@ static int pmic_spmi_probe(struct spmi_device *sdev)
>>> {
>>> struct device_node *root = sdev->dev.of_node;
>>> struct regmap *regmap;
>>> + struct property *prop;
>>> + int major, minor, ret;
>>> + char *name, compatible[32];
>>>
>>> regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config);
>>> if (IS_ERR(regmap))
>>> return PTR_ERR(regmap);
>>>
>>> + ret = pmic_spmi_read_revid(regmap, &name, &major, &minor);
>>> + if (!ret) {
>>
>> Are you sure that we want to continue if we can't read the revision id
>> and therefore will not be able to construct properly the compatible
>> property?
>>
>
> Yes. Driver is working fine even without exact chip version
> appended to compatible string.
>
>>> + snprintf(compatible, ARRAY_SIZE(compatible), "qcom,%s-v%d.%d",
>>> + name, major, minor);
>>> + prop = kzalloc(sizeof(*prop), GFP_KERNEL);
>>> + if (prop) {
>>> + prop->name = kstrdup("compatible", GFP_KERNEL);
>>> + prop->value = kstrdup(compatible, GFP_KERNEL);
>>> + prop->length = strlen(prop->value);
>>> + of_update_property(root, prop);
>>
>> of_update_property can fail, check the returned value.
>
> Same thing as above, but probably allocated memory at least can be freed.
might be better idea to use devm_kzalloc and devm_kstrdup?
--
regards,
Stan
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