Re: [PATCH v2 1/2] gpio: tps65219: add GPIO support for TPS65219 PMIC

From: jerome Neanne
Date: Mon May 22 2023 - 03:51:27 EST




On 20/05/2023 11:44, andy.shevchenko@xxxxxxxxx wrote:
Mon, May 15, 2023 at 05:36:46PM +0200, Bartosz Golaszewski kirjoitti:
On Thu, May 11, 2023 at 4:09 PM Jerome Neanne <jneanne@xxxxxxxxxxxx> wrote:

...

+ gpio->gpio_chip = tps65219_gpio_chip;

Aren't you getting any warnings here about dropping the 'const' from
the global structure?

But this is a copy of the contents and not the simple pointer.

In many other places where this is done, the struct is declared like:

static const struct gpio_chip template_chip = {

After internal review, I changed this to:

static const struct gpio_chip tps65219_gpio_chip = {

This is because I didn't want to have this "template" that sounds to me like "dummy". Maybe I misunderstood and this "template" was used on purpose because this const struct is just copied once to initialize
tps65219_gpio->gpio_chip during probe.

Introducing tps65219_gpio_chip name is maybe confusing with tps65219_gpio struct.

I think the const should not be a problem here but the naming I used might be misleading. If you have a suggestion of what is a good practice to make this piece of code clearer. I'll follow your suggestion (use template? more_explicit name like ???).

Thanks for your time.