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.smir...@gmail.com>
---
 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

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