[PATCH 1/2] [v5] pinctrl: qcom: disable GPIO groups with no pins

[Timur Tabi]

On 10/07/2017 06:07 AM, Linus Walleij wrote:
> I mean that you add
> unsigned long *line_valid_mask;
> to struct gpio_chip using the same type of logic
> as .irq_valid_mask. The mask should be optional.

Hmmm okay

> Then the operation gpiod_get[_index]() will FAIL if the
> line is not valid.

Just to be clear, you want gpiod_get_index() to check line_valid_mask 
(if present) and return -ENODEV if not valid?

> There is no need to check on every operation, there should
> be no way to get a handle on the pin any other way.
> 
> All new code should be using descriptors at this point so we
> only need to design for that case.

Ok, I will check this.

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