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Commit e4550f6e authored by Sergio Paracuellos's avatar Sergio Paracuellos Committed by Greg Kroah-Hartman
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staging: mt7621-gpio: avoid to set up irqs if not defined in dts 



If there is no interrupt defined in the dts 'irq_of_parse_and_map'
returns 0 and we should't set up interrupts for each gpio chip in
that case.

Signed-off-by: default avatarSergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent bfb623c5

drivers/staging/mt7621-gpio/gpio-mt7621.c

+22 −20
Original line number Diff line number Diff line
@@ -237,6 +237,7 @@ mediatek_gpio_bank_probe(struct platform_device *pdev, struct device_node *bank) 
		return ret;

	}



	if (gpio->gpio_irq) {

		/*

		 * Manually request the irq here instead of passing a flow-handler

		 * to gpiochip_set_chained_irqchip, because the irq is shared.
@@ -260,6 +261,7 @@ mediatek_gpio_bank_probe(struct platform_device *pdev, struct device_node *bank) 


		gpiochip_set_chained_irqchip(&rg->chip, &mediatek_gpio_irq_chip,

					     gpio->gpio_irq, NULL);

	}



	/* set polarity to low for all gpios */

	mtk_gpio_w32(rg, GPIO_REG_POL, 0);