Commit 2688302b authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Bartosz Golaszewski
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gpio: pca953x: Switch to bitops in IRQ callbacks 



Since we have driver converted to use bitmap API we must use
traditional bit operations (set_bit(), clear_bit(), etc.)
against it.

Currently IRQ callbacks are missed in the conversion and
thus broken.

Let's fix it right here right now.

Fixes: 35d13d94 ("gpio: pca953x: convert to use bitmap API")
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarBartosz Golaszewski <bgolaszewski@baylibre.com>
parent 256efaea

drivers/gpio/gpio-pca953x.c

+10 −16
Original line number Diff line number Diff line
@@ -568,16 +568,18 @@ static void pca953x_irq_mask(struct irq_data *d) 
{

	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);

	struct pca953x_chip *chip = gpiochip_get_data(gc);

	irq_hw_number_t hwirq = irqd_to_hwirq(d);



	chip->irq_mask[d->hwirq / BANK_SZ] &= ~BIT(d->hwirq % BANK_SZ);

	clear_bit(hwirq, chip->irq_mask);

}



static void pca953x_irq_unmask(struct irq_data *d)

{

	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);

	struct pca953x_chip *chip = gpiochip_get_data(gc);

	irq_hw_number_t hwirq = irqd_to_hwirq(d);



	chip->irq_mask[d->hwirq / BANK_SZ] |= BIT(d->hwirq % BANK_SZ);

	set_bit(hwirq, chip->irq_mask);

}



static int pca953x_irq_set_wake(struct irq_data *d, unsigned int on)
@@ -635,8 +637,7 @@ static int pca953x_irq_set_type(struct irq_data *d, unsigned int type) 
{

	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);

	struct pca953x_chip *chip = gpiochip_get_data(gc);

	int bank_nb = d->hwirq / BANK_SZ;

	u8 mask = BIT(d->hwirq % BANK_SZ);

	irq_hw_number_t hwirq = irqd_to_hwirq(d);



	if (!(type & IRQ_TYPE_EDGE_BOTH)) {

		dev_err(&chip->client->dev, "irq %d: unsupported type %d\n",
@@ -644,15 +645,8 @@ static int pca953x_irq_set_type(struct irq_data *d, unsigned int type) 
		return -EINVAL;

	}



	if (type & IRQ_TYPE_EDGE_FALLING)

		chip->irq_trig_fall[bank_nb] |= mask;

	else

		chip->irq_trig_fall[bank_nb] &= ~mask;



	if (type & IRQ_TYPE_EDGE_RISING)

		chip->irq_trig_raise[bank_nb] |= mask;

	else

		chip->irq_trig_raise[bank_nb] &= ~mask;

	assign_bit(hwirq, chip->irq_trig_fall, type & IRQ_TYPE_EDGE_FALLING);

	assign_bit(hwirq, chip->irq_trig_raise, type & IRQ_TYPE_EDGE_RISING);



	return 0;

}
@@ -661,10 +655,10 @@ static void pca953x_irq_shutdown(struct irq_data *d) 
{

	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);

	struct pca953x_chip *chip = gpiochip_get_data(gc);

	u8 mask = BIT(d->hwirq % BANK_SZ);

	irq_hw_number_t hwirq = irqd_to_hwirq(d);



	chip->irq_trig_raise[d->hwirq / BANK_SZ] &= ~mask;

	chip->irq_trig_fall[d->hwirq / BANK_SZ] &= ~mask;

	clear_bit(hwirq, chip->irq_trig_raise);

	clear_bit(hwirq, chip->irq_trig_fall);

}



static bool pca953x_irq_pending(struct pca953x_chip *chip, unsigned long *pending)

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