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Commit 1d2d8ce6 authored by Linus Walleij's avatar Linus Walleij
Browse files

pinctrl: baytrail: lock IRQs when starting them 



This uses the new API for tagging GPIO lines as in use by
IRQs. This enforces a few semantic checks on how the underlying
GPIO line is used.

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Tested-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent d46f4216

drivers/pinctrl/pinctrl-baytrail.c

+22 −0
Original line number Diff line number Diff line
@@ -372,11 +372,33 @@ static void byt_irq_mask(struct irq_data *d) 
{

}



static unsigned int byt_irq_startup(struct irq_data *d)

{

	struct byt_gpio *vg = irq_data_get_irq_chip_data(d);



	if (gpio_lock_as_irq(&vg->chip, irqd_to_hwirq(d)))

		dev_err(vg->chip.dev,

			"unable to lock HW IRQ %lu for IRQ\n",

			irqd_to_hwirq(d));

	byt_irq_unmask(d);

	return 0;

}



static void byt_irq_shutdown(struct irq_data *d)

{

	struct byt_gpio *vg = irq_data_get_irq_chip_data(d);



	byt_irq_mask(d);

	gpio_unlock_as_irq(&vg->chip, irqd_to_hwirq(d));

}



static struct irq_chip byt_irqchip = {

	.name = "BYT-GPIO",

	.irq_mask = byt_irq_mask,

	.irq_unmask = byt_irq_unmask,

	.irq_set_type = byt_irq_type,

	.irq_startup = byt_irq_startup,

	.irq_shutdown = byt_irq_shutdown,

};



static void byt_gpio_irq_init_hw(struct byt_gpio *vg)