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authorLinus Walleij <linus.walleij@linaro.org>2015-12-04 16:02:58 +0300
committerLinus Walleij <linus.walleij@linaro.org>2016-01-05 13:21:00 +0300
commit0f4630f3720e7e6e921bf525c8357fea7ef3dbab (patch)
tree61c1904593d1ee424464c2d57668ba0fd2fbcbb4 /drivers/gpio/gpio-clps711x.c
parent3208b0f0c010b26e4d461a3bca59989d03ed9087 (diff)
downloadlinux-0f4630f3720e7e6e921bf525c8357fea7ef3dbab.tar.xz
gpio: generic: factor into gpio_chip struct
The separate struct bgpio_chip has been a pain to handle, both by being confusingly similar in name to struct gpio_chip and for being contained inside a struct so that struct gpio_chip is contained in a struct contained in a struct, making several steps of dereferencing necessary. Make things simpler: include the fields directly into <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix some of the member variables with bgpio_* and add proper kerneldoc while we're at it. Modify all users to handle the change and use a struct gpio_chip directly. And while we're at it: replace all container_of() dereferencing by gpiochip_get_data() and registering the gpio_chip with gpiochip_add_data(). Cc: arm@kernel.org Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Kukjin Kim <kgene@kernel.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Olof Johansson <olof@lixom.net> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Cc: Rabin Vincent <rabin@rab.in> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Cc: bcm-kernel-feedback-list@broadcom.com Acked-by: Gregory Fong <gregory.0xf0@gmail.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-clps711x.c')
-rw-r--r--drivers/gpio/gpio-clps711x.c28
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
index b6908f1ff1ab..c84f9551f108 100644
--- a/drivers/gpio/gpio-clps711x.c
+++ b/drivers/gpio/gpio-clps711x.c
@@ -10,24 +10,23 @@
*/
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
static int clps711x_gpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
void __iomem *dat, *dir;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
struct resource *res;
int err, id = np ? of_alias_get_id(np, "gpio") : pdev->id;
if ((id < 0) || (id > 4))
return -ENODEV;
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -43,11 +42,11 @@ static int clps711x_gpio_probe(struct platform_device *pdev)
switch (id) {
case 3:
/* PORTD is inverted logic for direction register */
- err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+ err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
NULL, dir, 0);
break;
default:
- err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+ err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
dir, NULL, 0);
break;
}
@@ -58,24 +57,25 @@ static int clps711x_gpio_probe(struct platform_device *pdev)
switch (id) {
case 4:
/* PORTE is 3 lines only */
- bgc->gc.ngpio = 3;
+ gc->ngpio = 3;
break;
default:
break;
}
- bgc->gc.base = id * 8;
- bgc->gc.owner = THIS_MODULE;
- platform_set_drvdata(pdev, bgc);
+ gc->base = id * 8;
+ gc->owner = THIS_MODULE;
+ platform_set_drvdata(pdev, gc);
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int clps711x_gpio_remove(struct platform_device *pdev)
{
- struct bgpio_chip *bgc = platform_get_drvdata(pdev);
+ struct gpio_chip *gc = platform_get_drvdata(pdev);
- return bgpio_remove(bgc);
+ gpiochip_remove(gc);
+ return 0;
}
static const struct of_device_id __maybe_unused clps711x_gpio_ids[] = {