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Subject[PATCH v2 04/16] gpio: Move irq_base to struct gpio_irq_chip
Date
From: Thierry Reding <treding@nvidia.com>

In order to consolidate the multiple ways to associate an IRQ chip with
a GPIO chip, move more fields into the new struct gpio_irq_chip.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
drivers/gpio/gpiolib.c | 2 +-
drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 2 +-
include/linux/gpio/driver.h | 10 ++++++++--
3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index f4e18e0ffb56..2f0fa3d646d2 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1770,7 +1770,7 @@ static int gpiochip_add_irqchip(struct gpio_chip *gpiochip)
ops = &gpiochip_domain_ops;

gpiochip->irq.domain = irq_domain_add_simple(np, gpiochip->ngpio,
- gpiochip->irq_base,
+ gpiochip->irq.first,
ops, gpiochip);
if (!gpiochip->irq.domain)
return -EINVAL;
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index c9851bd120b4..500238d898ea 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -627,7 +627,7 @@ static void armada_37xx_irq_handler(struct irq_desc *desc)
static unsigned int armada_37xx_irq_startup(struct irq_data *d)
{
struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
- int irq = d->hwirq - chip->irq_base;
+ int irq = d->hwirq - chip->irq.first;
/*
* The mask field is a "precomputed bitmask for accessing the
* chip registers" which was introduced for the generic
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 031037bb8670..9389406df0b1 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -46,6 +46,14 @@ struct gpio_irq_chip {
*/
const struct irq_domain_ops *domain_ops;

+ /**
+ * @first:
+ *
+ * If not dynamically assigned, the base (first) IRQ to allocate GPIO
+ * chip IRQs from (deprecated).
+ */
+ unsigned int first;
+
/**
* @parent_handler:
*
@@ -152,7 +160,6 @@ static inline struct gpio_irq_chip *to_gpio_irq_chip(struct irq_chip *chip)
* safely.
* @bgpio_dir: shadowed direction register for generic GPIO to clear/set
* direction safely.
- * @irq_base: first linux IRQ number assigned to GPIO IRQ chip (deprecated)
* @irq_handler: the irq handler to use (often a predefined irq core function)
* for GPIO IRQs, provided by GPIO driver
* @irq_default_type: default IRQ triggering type applied during GPIO driver
@@ -232,7 +239,6 @@ struct gpio_chip {
* With CONFIG_GPIOLIB_IRQCHIP we get an irqchip inside the gpiolib
* to handle IRQs for most practical cases.
*/
- unsigned int irq_base;
irq_flow_handler_t irq_handler;
unsigned int irq_default_type;
unsigned int irq_chained_parent;
--
2.14.1
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