[PATCH 36/50] pinctrl: at91-pio4: Use devm_pinctrl_register() for pinctrl registration

Laxman Dewangan
2016-02-24T13:32:31Z

Use devm_pinctrl_register() for pin control registration and clean
error path.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: linux-arm-kernel@lists.infradead.org
---
drivers/pinctrl/pinctrl-at91-pio4.c | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
index ee69db6..9d33ef5 100644
--- a/drivers/pinctrl/pinctrl-at91-pio4.c
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -1034,18 +1034,19 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
goto clk_prepare_enable_error;
}

- atmel_pioctrl->pinctrl_dev = pinctrl_register(&atmel_pinctrl_desc,
- &pdev->dev,
- atmel_pioctrl);
- if (!atmel_pioctrl->pinctrl_dev) {
+ atmel_pioctrl->pinctrl_dev = devm_pinctrl_register(&pdev->dev,
+ &atmel_pinctrl_desc,
+ atmel_pioctrl);
+ if (IS_ERR(atmel_pioctrl->pinctrl_dev)) {
+ ret = PTR_ERR(atmel_pioctrl->pinctrl_dev);
dev_err(dev, "pinctrl registration failed\n");
- goto pinctrl_register_error;
+ goto clk_unprep;
}

ret = gpiochip_add_data(atmel_pioctrl->gpio_chip, atmel_pioctrl);
if (ret) {
dev_err(dev, "failed to add gpiochip\n");
- goto gpiochip_add_error;
+ goto clk_unprep;
}

ret = gpiochip_add_pin_range(atmel_pioctrl->gpio_chip, dev_name(dev),
@@ -1059,15 +1060,15 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)

return 0;

-clk_prepare_enable_error:
- irq_domain_remove(atmel_pioctrl->irq_domain);
-pinctrl_register_error:
- clk_disable_unprepare(atmel_pioctrl->clk);
-gpiochip_add_error:
- pinctrl_unregister(atmel_pioctrl->pinctrl_dev);
gpiochip_add_pin_range_error:
gpiochip_remove(atmel_pioctrl->gpio_chip);

+clk_unprep:
+ clk_disable_unprepare(atmel_pioctrl->clk);
+
+clk_prepare_enable_error:
+ irq_domain_remove(atmel_pioctrl->irq_domain);
+
return ret;
}

@@ -1077,7 +1078,6 @@ int atmel_pinctrl_remove(struct platform_device *pdev)

irq_domain_remove(atmel_pioctrl->irq_domain);
clk_disable_unprepare(atmel_pioctrl->clk);
- pinctrl_unregister(atmel_pioctrl->pinctrl_dev);
gpiochip_remove(atmel_pioctrl->gpio_chip);

return 0;
--
2.1.4