For probing via device tree, we need to support the case without platform_data.
In this case, chip.base is set to -1 for automatic numbering.
Signed-off-by: Roland Stigge <sti...@antcom.de>
---
drivers/gpio/gpio-max730x.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- linux-2.6.orig/drivers/gpio/gpio-max730x.c
+++ linux-2.6/drivers/gpio/gpio-max730x.c
@@ -167,10 +167,6 @@ int __devinit __max730x_probe(struct max
int i, ret;
pdata = dev->platform_data;
- if (!pdata || !pdata->base) {
- dev_err(dev, "incorrect or missing platform data\n");
- return -EINVAL;
- }
mutex_init(&ts->lock);
dev_set_drvdata(dev, ts);
@@ -178,7 +174,12 @@ int __devinit __max730x_probe(struct max
/* Power up the chip and disable IRQ output */
ts->write(dev, 0x04, 0x01);
- ts->input_pullup_active = pdata->input_pullup_active;
+ if (pdata) {
+ ts->input_pullup_active = pdata->input_pullup_active;
+ ts->chip.base = pdata->base;
+ } else {
+ ts->chip.base = -1;
+ }
ts->chip.label = dev->driver->name;
ts->chip.direction_input = max7301_direction_input;
@@ -186,7 +187,6 @@ int __devinit __max730x_probe(struct max
ts->chip.direction_output = max7301_direction_output;
ts->chip.set = max7301_set;
- ts->chip.base = pdata->base;
ts->chip.ngpio = PIN_NUMBER;
ts->chip.can_sleep = 1;
ts->chip.dev = dev;
--
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