From 646e321f332ba9328ad573d3d88d9a26032e8761 Mon Sep 17 00:00:00 2001 From: Michael Walle Date: Thu, 28 Apr 2022 13:16:22 +0200 Subject: [PATCH] pinctrl: microchip-sgpio: make irq_chip immutable Since recently, the kernel is nagging about mutable irq_chips: [ 4.967050] gpio gpiochip1: (e2004190.gpio-input): not an immutable chip, please consider fixing it! Drop the unneeded copy, flag it as IRQCHIP_IMMUTABLE, add the new helper functions and call the appropriate gpiolib functions. Signed-off-by: Michael Walle Reviewed-by: Marc Zyngier Link: https://lore.kernel.org/r/20220428111622.1395831-1-michael@walle.cc Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-microchip-sgpio.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/pinctrl/pinctrl-microchip-sgpio.c b/drivers/pinctrl/pinctrl-microchip-sgpio.c index 80a8939..6dbe37d 100644 --- a/drivers/pinctrl/pinctrl-microchip-sgpio.c +++ b/drivers/pinctrl/pinctrl-microchip-sgpio.c @@ -688,11 +688,17 @@ static void microchip_sgpio_irq_setreg(struct irq_data *data, static void microchip_sgpio_irq_mask(struct irq_data *data) { + struct gpio_chip *chip = irq_data_get_irq_chip_data(data); + microchip_sgpio_irq_setreg(data, REG_INT_ENABLE, true); + gpiochip_disable_irq(chip, data->hwirq); } static void microchip_sgpio_irq_unmask(struct irq_data *data) { + struct gpio_chip *chip = irq_data_get_irq_chip_data(data); + + gpiochip_enable_irq(chip, data->hwirq); microchip_sgpio_irq_setreg(data, REG_INT_ENABLE, false); } @@ -746,6 +752,8 @@ static const struct irq_chip microchip_sgpio_irqchip = { .irq_ack = microchip_sgpio_irq_ack, .irq_unmask = microchip_sgpio_irq_unmask, .irq_set_type = microchip_sgpio_irq_set_type, + .flags = IRQCHIP_IMMUTABLE, + GPIOCHIP_IRQ_RESOURCE_HELPERS, }; static void sgpio_irq_handler(struct irq_desc *desc) @@ -861,11 +869,7 @@ static int microchip_sgpio_register_bank(struct device *dev, if (irq) { struct gpio_irq_chip *girq = &gc->irq; - girq->chip = devm_kmemdup(dev, µchip_sgpio_irqchip, - sizeof(microchip_sgpio_irqchip), - GFP_KERNEL); - if (!girq->chip) - return -ENOMEM; + gpio_irq_chip_set_chip(girq, µchip_sgpio_irqchip); girq->parent_handler = sgpio_irq_handler; girq->num_parents = 1; girq->parents = devm_kcalloc(dev, 1, -- 2.7.4