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Message-Id: <20230215-immutable-chips-v3-2-972542092a77@linaro.org>
Date: Thu, 09 Mar 2023 08:45:50 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Mun Yew Tham <mun.yew.tham@...el.com>,
Bartosz Golaszewski <brgl@...ev.pl>,
Joel Stanley <joel@....id.au>,
Andrew Jeffery <andrew@...id.au>, Alban Bedel <albeu@...e.fr>,
Orson Zhai <orsonzhai@...il.com>,
Baolin Wang <baolin.wang@...ux.alibaba.com>,
Chunyan Zhang <zhang.lyra@...il.com>,
Jay Fang <f.fangjian@...wei.com>,
Daniel Palmer <daniel@...ngy.jp>,
Romain Perier <romain.perier@...il.com>,
Santosh Shilimkar <ssantosh@...nel.org>,
Kevin Hilman <khilman@...nel.org>,
William Breathitt Gray <william.gray@...aro.org>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-aspeed@...ts.ozlabs.org, linux-omap@...r.kernel.org,
Linus Walleij <linus.walleij@...aro.org>,
Marc Zyngier <maz@...nel.org>
Subject: [PATCH v3 02/17] gpio: adnp: Convert to immutable irq_chip
Convert the driver to immutable irq-chip with a bit of
intuition.
Cc: Marc Zyngier <maz@...nel.org>
Acked-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
drivers/gpio/gpio-adnp.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index a6439e3daff0..9b01c391efce 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -307,6 +307,7 @@ static void adnp_irq_mask(struct irq_data *d)
unsigned int pos = d->hwirq & 7;
adnp->irq_enable[reg] &= ~BIT(pos);
+ gpiochip_disable_irq(gc, irqd_to_hwirq(d));
}
static void adnp_irq_unmask(struct irq_data *d)
@@ -316,6 +317,7 @@ static void adnp_irq_unmask(struct irq_data *d)
unsigned int reg = d->hwirq >> adnp->reg_shift;
unsigned int pos = d->hwirq & 7;
+ gpiochip_enable_irq(gc, irqd_to_hwirq(d));
adnp->irq_enable[reg] |= BIT(pos);
}
@@ -372,13 +374,15 @@ static void adnp_irq_bus_unlock(struct irq_data *d)
mutex_unlock(&adnp->irq_lock);
}
-static struct irq_chip adnp_irq_chip = {
+static const struct irq_chip adnp_irq_chip = {
.name = "gpio-adnp",
.irq_mask = adnp_irq_mask,
.irq_unmask = adnp_irq_unmask,
.irq_set_type = adnp_irq_set_type,
.irq_bus_lock = adnp_irq_bus_lock,
.irq_bus_sync_unlock = adnp_irq_bus_unlock,
+ .flags = IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static int adnp_irq_setup(struct adnp *adnp)
@@ -469,7 +473,8 @@ static int adnp_gpio_setup(struct adnp *adnp, unsigned int num_gpios,
return err;
girq = &chip->irq;
- girq->chip = &adnp_irq_chip;
+ gpio_irq_chip_set_chip(girq, &adnp_irq_chip);
+
/* This will let us handle the parent IRQ in the driver */
girq->parent_handler = NULL;
girq->num_parents = 0;
--
2.34.1
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