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Subject[PATCH 4/4] pinctrl: at91: Add remove function in platform_driver at91_gpio_driver
Date
This adds remove function in at91_gpio_driver platform_driver so that
driver can be unloaded cleanly.

CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
---
drivers/pinctrl/pinctrl-at91.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 8b8772c..92641b6 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1646,6 +1646,7 @@ static int at91_gpio_probe(struct platform_device *pdev)
if (ret)
goto irq_setup_err;

+ platform_set_drvdata(pdev, at91_chip);
dev_info(&pdev->dev, "at address %p\n", at91_chip->regbase);

return 0;
@@ -1663,6 +1664,17 @@ err:
return ret;
}

+static int at91_gpio_remove(struct platform_device *pdev)
+{
+ struct at91_gpio_chip *at91_chip = platform_get_drvdata(pdev);
+
+ gpiochip_remove(&at91_chip->chip);
+ clk_disable(at91_chip->clock);
+ clk_unprepare(at91_chip->clock);
+
+ return 0;
+}
+
static struct platform_driver at91_gpio_driver = {
.driver = {
.name = "gpio-at91",
@@ -1670,6 +1682,7 @@ static struct platform_driver at91_gpio_driver = {
.of_match_table = at91_gpio_of_match,
},
.probe = at91_gpio_probe,
+ .remove = at91_gpio_remove,
};

static struct platform_driver at91_pinctrl_driver = {
--
1.7.0.4


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