[PATCH 4/8] gpio: gpio-mxs: replace dev_get_drvdata with device_get_match_data

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

In preparation for aligning dev_get_drvdata with Linux, use
device_get_match_data instead.
While at it, we drop the unneeded struct mxs_gpio_chip::regs member to
not have to worry about const safety.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 drivers/gpio/gpio-mxs.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index 770acb61c858..df698eb19167 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -19,7 +19,6 @@ struct mxs_gpio_chip {
 	void __iomem *doe;
 	void __iomem *dout;
 	struct gpio_chip chip;
-	struct mxs_gpio_regs *regs;
 };
 
 struct mxs_gpio_regs {
@@ -101,12 +100,12 @@ static struct gpio_ops mxs_gpio_ops = {
 static int mxs_gpio_probe(struct device *dev)
 {
 	struct mxs_gpio_chip *mxsgpio;
-	struct mxs_gpio_regs *regs;
-	int ret, id;
+	const struct mxs_gpio_regs *regs;
+	int id;
 
-	ret = dev_get_drvdata(dev, (const void **)&regs);
-	if (ret)
-		return ret;
+	regs = device_get_match_data(dev);
+	if (!regs)
+		return -ENODEV;
 
 	mxsgpio = xzalloc(sizeof(*mxsgpio));
 	mxsgpio->chip.ops = &mxs_gpio_ops;
@@ -131,7 +130,6 @@ static int mxs_gpio_probe(struct device *dev)
 
 	mxsgpio->chip.ngpio = 32;
 	mxsgpio->chip.dev = dev;
-	mxsgpio->regs = regs;
 	gpiochip_add(&mxsgpio->chip);
 
 	dev_dbg(dev, "probed gpiochip%d with base %d\n", dev->id, mxsgpio->chip.base);
-- 
2.39.5