gpio: ep93xx: Properly call the chained IRQ handler (99399f40) · Commits · 戴 / test

drivers/gpio/gpio-ep93xx.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -88,9 +88,12 @@ static void ep93xx_gpio_ab_irq_handler(struct irq_desc *desc)
		{
		struct gpio_chip *gc = irq_desc_get_handler_data(desc);
		struct ep93xx_gpio *epg = gpiochip_get_data(gc);
		struct irq_chip *irqchip = irq_desc_get_chip(desc);
		unsigned char status;
		int i;

		chained_irq_enter(irqchip, desc);

		status = readb(epg->base + EP93XX_GPIO_A_INT_STATUS);
		for (i = 0; i < 8; i++) {
		if (status & (1 << i)) {
		@@ -106,6 +109,8 @@ static void ep93xx_gpio_ab_irq_handler(struct irq_desc *desc)
		generic_handle_irq(gpio_irq);
		}
		}

		chained_irq_exit(irqchip, desc);
		}

		static void ep93xx_gpio_f_irq_handler(struct irq_desc *desc)
		@@ -115,11 +120,14 @@ static void ep93xx_gpio_f_irq_handler(struct irq_desc *desc)
		*
		* IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7})
		*/
		struct irq_chip *irqchip = irq_desc_get_chip(desc);
		unsigned int irq = irq_desc_get_irq(desc);
		int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */
		int gpio_irq = gpio_to_irq(16) + port_f_idx;

		chained_irq_enter(irqchip, desc);
		generic_handle_irq(gpio_irq);
		chained_irq_exit(irqchip, desc);
		}

		static void ep93xx_gpio_irq_ack(struct irq_data *d)