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Commit c609c05d authored by David Jander's avatar David Jander Committed by Grant Likely
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gpio/pca953x: Fix IRQ support. 



It seems that in the normal case, IRQ_NOREQUEST needs to be explicitly
cleared, otherwise claiming the interrupt fails.
In the case of sparse interrupts, the descriptor needs to be allocated
first.

Signed-off-by: default avatarDavid Jander <david@protonic.nl>
Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
parent 8e46ea3e

drivers/gpio/gpio-pca953x.c

+3 −1
Original line number Diff line number Diff line
@@ -517,9 +517,11 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, 


static void pca953x_irq_teardown(struct pca953x_chip *chip)

{

	if (chip->irq_base != -1)

	if (chip->irq_base != -1) {

		irq_free_descs(chip->irq_base, chip->gpio_chip.ngpio);

		free_irq(chip->client->irq, chip);

	}

}

#else /* CONFIG_GPIO_PCA953X_IRQ */

static int pca953x_irq_setup(struct pca953x_chip *chip,

			     const struct i2c_device_id *id)