diff options
author | Linus Walleij <linus.walleij@linaro.org> | 2015-12-04 14:02:58 +0100 |
---|---|---|
committer | Linus Walleij <linus.walleij@linaro.org> | 2016-01-05 11:21:00 +0100 |
commit | 0f4630f3720e7e6e921bf525c8357fea7ef3dbab (patch) | |
tree | 61c1904593d1ee424464c2d57668ba0fd2fbcbb4 /drivers/gpio/gpio-ep93xx.c | |
parent | gpio: of: provide optional of_mm_gpiochip_add_data() function (diff) | |
download | linux-0f4630f3720e7e6e921bf525c8357fea7ef3dbab.tar.xz linux-0f4630f3720e7e6e921bf525c8357fea7ef3dbab.zip |
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-ep93xx.c')
-rw-r--r-- | drivers/gpio/gpio-ep93xx.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c index 3e3947b35c83..ad279078fed7 100644 --- a/drivers/gpio/gpio-ep93xx.c +++ b/drivers/gpio/gpio-ep93xx.c @@ -16,10 +16,11 @@ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/io.h> -#include <linux/gpio.h> #include <linux/irq.h> #include <linux/slab.h> -#include <linux/basic_mmio_gpio.h> +#include <linux/gpio/driver.h> +/* FIXME: this is here for gpio_to_irq() - get rid of this! */ +#include <linux/gpio.h> #include <mach/hardware.h> #include <mach/gpio-ep93xx.h> @@ -28,7 +29,7 @@ struct ep93xx_gpio { void __iomem *mmio_base; - struct bgpio_chip bgc[8]; + struct gpio_chip gc[8]; }; /************************************************************************* @@ -319,26 +320,26 @@ static int ep93xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset) return 64 + gpio; } -static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev, +static int ep93xx_gpio_add_bank(struct gpio_chip *gc, struct device *dev, void __iomem *mmio_base, struct ep93xx_gpio_bank *bank) { void __iomem *data = mmio_base + bank->data; void __iomem *dir = mmio_base + bank->dir; int err; - err = bgpio_init(bgc, dev, 1, data, NULL, NULL, dir, NULL, 0); + err = bgpio_init(gc, dev, 1, data, NULL, NULL, dir, NULL, 0); if (err) return err; - bgc->gc.label = bank->label; - bgc->gc.base = bank->base; + gc->label = bank->label; + gc->base = bank->base; if (bank->has_debounce) { - bgc->gc.set_debounce = ep93xx_gpio_set_debounce; - bgc->gc.to_irq = ep93xx_gpio_to_irq; + gc->set_debounce = ep93xx_gpio_set_debounce; + gc->to_irq = ep93xx_gpio_to_irq; } - return gpiochip_add(&bgc->gc); + return gpiochip_add_data(gc, NULL); } static int ep93xx_gpio_probe(struct platform_device *pdev) @@ -358,10 +359,10 @@ static int ep93xx_gpio_probe(struct platform_device *pdev) return PTR_ERR(ep93xx_gpio->mmio_base); for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) { - struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i]; + struct gpio_chip *gc = &ep93xx_gpio->gc[i]; struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i]; - if (ep93xx_gpio_add_bank(bgc, &pdev->dev, + if (ep93xx_gpio_add_bank(gc, &pdev->dev, ep93xx_gpio->mmio_base, bank)) dev_warn(&pdev->dev, "Unable to add gpio bank %s\n", bank->label); |