gpio: stp-xway: use gpiochip data pointer
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -100,8 +100,7 @@ struct xway_stp {
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*/
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static void xway_stp_set(struct gpio_chip *gc, unsigned gpio, int val)
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{
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struct xway_stp *chip =
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container_of(gc, struct xway_stp, gc);
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struct xway_stp *chip = gpiochip_get_data(gc);
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if (val)
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chip->shadow |= BIT(gpio);
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@ -135,8 +134,7 @@ static int xway_stp_dir_out(struct gpio_chip *gc, unsigned gpio, int val)
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*/
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static int xway_stp_request(struct gpio_chip *gc, unsigned gpio)
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{
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struct xway_stp *chip =
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container_of(gc, struct xway_stp, gc);
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struct xway_stp *chip = gpiochip_get_data(gc);
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if ((gpio < 8) && (chip->reserved & BIT(gpio))) {
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dev_err(gc->parent, "GPIO %d is driven by hardware\n", gpio);
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@ -260,7 +258,7 @@ static int xway_stp_probe(struct platform_device *pdev)
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ret = xway_stp_hw_init(chip);
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if (!ret)
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ret = gpiochip_add(&chip->gc);
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ret = gpiochip_add_data(&chip->gc, chip);
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if (!ret)
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dev_info(&pdev->dev, "Init done\n");
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