gpio: 74x164: Use dynamic gpio number assignment if no pdata is present
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index 604b998..ef8baac 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -75,12 +75,6 @@
struct gen_74x164_chip_platform_data *pdata;
int ret;
- pdata = spi->dev.platform_data;
- if (!pdata || !pdata->base) {
- dev_dbg(&spi->dev, "incorrect or missing platform data\n");
- return -EINVAL;
- }
-
/*
* bits_per_word cannot be configured in platform data
*/
@@ -94,6 +88,12 @@
if (!chip)
return -ENOMEM;
+ pdata = spi->dev.platform_data;
+ if (pdata && pdata->base)
+ chip->gpio_chip.base = pdata->base;
+ else
+ chip->gpio_chip.base = -1;
+
mutex_init(&chip->lock);
dev_set_drvdata(&spi->dev, chip);
@@ -104,7 +104,6 @@
chip->gpio_chip.direction_output = gen_74x164_direction_output;
chip->gpio_chip.get = gen_74x164_get_value;
chip->gpio_chip.set = gen_74x164_set_value;
- chip->gpio_chip.base = pdata->base;
chip->gpio_chip.ngpio = 8;
chip->gpio_chip.can_sleep = 1;
chip->gpio_chip.dev = &spi->dev;