pinctrl: airoha: fix getting gpiochip/pinctrl pointers in the IRQ handling code

airoha_irq_unmask(), airoha_irq_mask(), airoha_irq_type() functions
impements brain damaged logic to retrieve gpiochip and pinctrl pointers.

Details:

    gpiochip = irq_data_get_irq_chip_data(data);

will initialize gpiochip variable with data->chip_data value. This value
initialized inside gpiochip_irq_map() function

    static int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
			        irq_hw_number_t hwirq)
    {
	struct gpio_chip *gc = d->host_data;
        ...
	irq_set_chip_data(irq, gc);
	...
    }

Thus gpiochip variable of 'struct airoha_pinctrl_gpiochip *' type will be
initialized with a pointer to a variable of 'struct gpio_chip' type.

Luckily, gpio_chip is the first element of airoha_pinctrl_gpiochip, so
gpiochip pointer will get a correct value.

This patch implements correct logic of getting gpiochip and pinctrl
pointers.

Fixes: 1c8ace2d0725 ("pinctrl: airoha: Add support for EN7581 SoC")
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Signed-off-by: Linus Walleij <linusw@kernel.org>

0 files changed, 0 insertions, 0 deletions