From 33c56e5ca01b85d235f464572a640ef657d53fca Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 14 Apr 2023 16:06:18 +0200 Subject: [PATCH] pinctrl: pistachio: Convert to immutable irq_chip Convert the driver to immutable irq-chip with a bit of intuition. Signed-off-by: Linus Walleij Link: https://lore.kernel.org/r/20230414-immutable-irqchips-2-v1-2-6b59a5186b00@linaro.org --- drivers/pinctrl/pinctrl-pistachio.c | 35 ++++++++++++++++++++--------- 1 file changed, 25 insertions(+), 10 deletions(-) diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c index 7ca4ecb6eb8d..53408344927a 100644 --- a/drivers/pinctrl/pinctrl-pistachio.c +++ b/drivers/pinctrl/pinctrl-pistachio.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -93,10 +94,10 @@ struct pistachio_pin_group { struct pistachio_gpio_bank { struct pistachio_pinctrl *pctl; void __iomem *base; + int instance; unsigned int pin_base; unsigned int npins; struct gpio_chip gpio_chip; - struct irq_chip irq_chip; }; struct pistachio_pinctrl { @@ -1228,12 +1229,14 @@ static void pistachio_gpio_irq_mask(struct irq_data *data) struct pistachio_gpio_bank *bank = irqd_to_bank(data); gpio_mask_writel(bank, GPIO_INTERRUPT_EN, data->hwirq, 0); + gpiochip_disable_irq(&bank->gpio_chip, irqd_to_hwirq(data)); } static void pistachio_gpio_irq_unmask(struct irq_data *data) { struct pistachio_gpio_bank *bank = irqd_to_bank(data); + gpiochip_enable_irq(&bank->gpio_chip, irqd_to_hwirq(data)); gpio_mask_writel(bank, GPIO_INTERRUPT_EN, data->hwirq, 1); } @@ -1312,6 +1315,7 @@ static void pistachio_gpio_irq_handler(struct irq_desc *desc) #define GPIO_BANK(_bank, _pin_base, _npins) \ { \ + .instance = (_bank), \ .pin_base = _pin_base, \ .npins = _npins, \ .gpio_chip = { \ @@ -1326,14 +1330,6 @@ static void pistachio_gpio_irq_handler(struct irq_desc *desc) .base = _pin_base, \ .ngpio = _npins, \ }, \ - .irq_chip = { \ - .name = "GPIO" #_bank, \ - .irq_startup = pistachio_gpio_irq_startup, \ - .irq_ack = pistachio_gpio_irq_ack, \ - .irq_mask = pistachio_gpio_irq_mask, \ - .irq_unmask = pistachio_gpio_irq_unmask, \ - .irq_set_type = pistachio_gpio_irq_set_type, \ - }, \ } static struct pistachio_gpio_bank pistachio_gpio_banks[] = { @@ -1345,6 +1341,25 @@ static struct pistachio_gpio_bank pistachio_gpio_banks[] = { GPIO_BANK(5, PISTACHIO_PIN_MFIO(80), 10), }; +static void pistachio_gpio_irq_print_chip(struct irq_data *data, + struct seq_file *p) +{ + struct pistachio_gpio_bank *bank = irqd_to_bank(data); + + seq_printf(p, "GPIO%d", bank->instance); +} + +static const struct irq_chip pistachio_gpio_irq_chip = { + .irq_startup = pistachio_gpio_irq_startup, + .irq_ack = pistachio_gpio_irq_ack, + .irq_mask = pistachio_gpio_irq_mask, + .irq_unmask = pistachio_gpio_irq_unmask, + .irq_set_type = pistachio_gpio_irq_set_type, + .irq_print_chip = pistachio_gpio_irq_print_chip, + .flags = IRQCHIP_IMMUTABLE, + GPIOCHIP_IRQ_RESOURCE_HELPERS, +}; + static int pistachio_gpio_register(struct pistachio_pinctrl *pctl) { struct pistachio_gpio_bank *bank; @@ -1394,7 +1409,7 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl) bank->gpio_chip.fwnode = child; girq = &bank->gpio_chip.irq; - girq->chip = &bank->irq_chip; + gpio_irq_chip_set_chip(girq, &pistachio_gpio_irq_chip); girq->parent_handler = pistachio_gpio_irq_handler; girq->num_parents = 1; girq->parents = devm_kcalloc(pctl->dev, 1,