On 06/09/2024 13:50, Andrei Stefanescu wrote:
> On 06/09/2024 12:53, Krzysztof Kozlowski wrote:
>> On 06/09/2024 11:45, Andrei Stefanescu wrote:
>>> On 06/09/2024 12:39, Krzysztof Kozlowski wrote:
>>>> On 06/09/2024 10:43, Andrei Stefanescu wrote:
>>>>> Hi Krzysztof,
>>>>>
>>>>>
>>>>>>> +static struct regmap *common_regmap_init(struct platform_device *pdev,
>>>>>>> + struct regmap_config *conf,
>>>>>>> + const char *name)
>>>>>>> +{
>>>>>>> + struct device *dev = &pdev->dev;
>>>>>>> + struct resource *res;
>>>>>>> + resource_size_t size;
>>>>>>> + void __iomem *base;
>>>>>>> +
>>>>>>> + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
>>>>>>> + if (!res) {
>>>>>>> + dev_err(&pdev->dev, "Failed to get MEM resource: %s\n", name);
>>>>>>> + return ERR_PTR(-EINVAL);
>>>>>>> + }
>>>>>>> +
>>>>>>> + base = devm_ioremap_resource(dev, res);
>>>>>>
>>>>>> There is a wrapper for both calls above, so use it.
>>>>>
>>>>> I am not sure I can change this because I also use the `resource_size`
>>>>> call below in order to initialize the regmap_config.
>>>>> Unfortunately, `devm_platform_ioremap_resource_byname` doesn't also retrieve
>>>>> the resource via a pointer.
>>>>>
>>>>> I saw the `devm_platform_get_and_ioremap_resource` function but that one
>>>>> retrieves the resource based on the index. I would like to keep identifying
>>>>> the resource by its name instead of its index.
>>>>
>>>> So add the wrapper. Or explain what's wrong with indices?
>>>
>>> There's nothing wrong but I prefer to not force an order. I will
>>> add a wrapper then.
>>
>> Order is forced. You cannot change it. I don't understand your rationale.
>>
>> Best regards,
>> Krzysztof
>>
>
> By order I mean the order in which the memory region descriptions are laid out
> in the reg property. Currently, there is no issue if we, let's say, swap the order
> of opads0 and opads1(as long as we keep the same change for the reg-names).
You cannot swap them. Order of items is fixed.
>
> Just to double check, this would imply adding a new wrapper named
> `devm_platform_get_and_ioremap_resource_byname` which would basically be
> very similar to `devm_platform_get_and_ioremap_resource`. Is that ok?
That's ok for me.
Best regards,
Krzysztof
