[PATCH 02/13] gpio-sx150x: Remove 'irq_summary' parameter

From: Andrey Smirnov
Date: Mon Oct 17 2016 - 10:28:05 EST


Information conveyed by 'irq_summary' paramter can be obtained from
struct i2c_client's irq field. Remove any uses of the former and replace
it with the latter.

Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
drivers/gpio/gpio-sx150x.c | 19 +++----------------
1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/gpio/gpio-sx150x.c b/drivers/gpio/gpio-sx150x.c
index f9d6bec..e80c115 100644
--- a/drivers/gpio/gpio-sx150x.c
+++ b/drivers/gpio/gpio-sx150x.c
@@ -105,12 +105,6 @@ struct sx150x_device_data {
* the polarity of that IO line, while clearing it results
* in normal polarity. For chips with fewer than 16 IO pins,
* high-end bits are ignored.
- * @irq_summary: The 'summary IRQ' line to which the GPIO expander's INT line
- * is connected, via which it reports interrupt events
- * across all GPIO lines. This must be a real,
- * pre-existing IRQ line.
- * Setting this value < 0 disables the irq_chip functionality
- * of the driver.
* @irq_base: The first 'virtual IRQ' line at which our block of GPIO-based
* IRQ lines will appear. Similarly to gpio_base, the expander
* will create a block of irqs beginning at this number.
@@ -124,7 +118,6 @@ struct sx150x_platform_data {
u16 io_pullup_ena;
u16 io_pulldn_ena;
u16 io_polarity;
- int irq_summary;
unsigned irq_base;
bool reset_during_probe;
};
@@ -133,7 +126,6 @@ struct sx150x_chip {
struct gpio_chip gpio_chip;
struct i2c_client *client;
const struct sx150x_device_data *dev_cfg;
- int irq_summary;
int irq_base;
int irq_update;
u32 irq_sense;
@@ -598,7 +590,6 @@ static void sx150x_init_chip(struct sx150x_chip *chip,
chip->irq_chip.irq_set_type = sx150x_irq_set_type;
chip->irq_chip.irq_bus_lock = sx150x_irq_bus_lock;
chip->irq_chip.irq_bus_sync_unlock = sx150x_irq_bus_sync_unlock;
- chip->irq_summary = -1;
chip->irq_base = -1;
chip->irq_masked = ~0;
chip->irq_sense = 0;
@@ -699,12 +690,10 @@ static int sx150x_init_hw(struct sx150x_chip *chip,
}

static int sx150x_install_irq_chip(struct sx150x_chip *chip,
- int irq_summary,
- int irq_base)
+ int irq_base)
{
int err;

- chip->irq_summary = irq_summary;
chip->irq_base = irq_base;

/* Add gpio chip to irq subsystem */
@@ -718,11 +707,10 @@ static int sx150x_install_irq_chip(struct sx150x_chip *chip,
}

err = devm_request_threaded_irq(&chip->client->dev,
- irq_summary, NULL, sx150x_irq_thread_fn,
+ chip->client->irq, NULL, sx150x_irq_thread_fn,
IRQF_ONESHOT | IRQF_SHARED | IRQF_TRIGGER_FALLING,
chip->irq_chip.name, chip);
if (err < 0) {
- chip->irq_summary = -1;
chip->irq_base = -1;
}

@@ -759,9 +747,8 @@ static int sx150x_probe(struct i2c_client *client,
if (rc)
return rc;

- if (pdata->irq_summary >= 0) {
+ if (client->irq) {
rc = sx150x_install_irq_chip(chip,
- pdata->irq_summary,
pdata->irq_base);
if (rc < 0)
return rc;
--
2.5.5