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pinctrl: at91-pio4: make it explicitly non-modular 

The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/Kconfig:config PINCTRL_AT91PIO4
drivers/pinctrl/Kconfig:        bool "AT91 PIO4 pinctrl driver"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Paul Gortmaker 2016-06-06 22:43:08 -04:00 committed by Linus Walleij
parent 546c6d7930
commit f703851af0
1 changed files with 3 additions and 19 deletions
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22
drivers/pinctrl/pinctrl-at91-pio4.c
View File

@ -20,7 +20,7 @@
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pinctrl/pinconf.h>
@ -879,7 +879,6 @@ static const struct of_device_id atmel_pctrl_of_match[] = {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(of, atmel_pctrl_of_match);
static int atmel_pinctrl_probe(struct platform_device *pdev)
{
@ -1074,28 +1073,13 @@ clk_prepare_enable_error:
return ret;
}
static int atmel_pinctrl_remove(struct platform_device *pdev)
{
struct atmel_pioctrl *atmel_pioctrl = platform_get_drvdata(pdev);
irq_domain_remove(atmel_pioctrl->irq_domain);
clk_disable_unprepare(atmel_pioctrl->clk);
gpiochip_remove(atmel_pioctrl->gpio_chip);
return 0;
}
static struct platform_driver atmel_pinctrl_driver = {
.driver = {
.name = "pinctrl-at91-pio4",
.of_match_table = atmel_pctrl_of_match,
.pm = &atmel_pctrl_pm_ops,
.suppress_bind_attrs = true,
},
.probe = atmel_pinctrl_probe,
.remove = atmel_pinctrl_remove,
};
module_platform_driver(atmel_pinctrl_driver);
MODULE_AUTHOR(Ludovic Desroches <ludovic.desroches@atmel.com>);
MODULE_DESCRIPTION("Atmel PIO4 pinctrl driver");
MODULE_LICENSE("GPL v2");
builtin_platform_driver(atmel_pinctrl_driver);