diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2015-12-08 15:53:29 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-03-30 10:53:23 +0200 |
| commit | 937daafca774b05633f436c19885c8cb3cbdcc8a (patch) | |
| tree | d7cab42d1040a77f37afda8d6851061d886c313b /arch/powerpc/sysdev/simple_gpio.c | |
| parent | 1e714e54b5ca5bfc75bc43ed41f8217242e831fe (diff) | |
powerpc: simple-gpio: use gpiochip data pointer
This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/powerpc/sysdev/simple_gpio.c')
| -rw-r--r-- | arch/powerpc/sysdev/simple_gpio.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/powerpc/sysdev/simple_gpio.c b/arch/powerpc/sysdev/simple_gpio.c index 56ce8ca3281b..ef470b470b04 100644 --- a/arch/powerpc/sysdev/simple_gpio.c +++ b/arch/powerpc/sysdev/simple_gpio.c @@ -19,7 +19,7 @@ #include <linux/io.h> #include <linux/of.h> #include <linux/of_gpio.h> -#include <linux/gpio.h> +#include <linux/gpio/driver.h> #include <linux/slab.h> #include <asm/prom.h> #include "simple_gpio.h" @@ -32,11 +32,6 @@ struct u8_gpio_chip { u8 data; }; -static struct u8_gpio_chip *to_u8_gpio_chip(struct of_mm_gpio_chip *mm_gc) -{ - return container_of(mm_gc, struct u8_gpio_chip, mm_gc); -} - static u8 u8_pin2mask(unsigned int pin) { return 1 << (8 - 1 - pin); @@ -52,7 +47,7 @@ static int u8_gpio_get(struct gpio_chip *gc, unsigned int gpio) static void u8_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val) { struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); - struct u8_gpio_chip *u8_gc = to_u8_gpio_chip(mm_gc); + struct u8_gpio_chip *u8_gc = gpiochip_get_data(gc); unsigned long flags; spin_lock_irqsave(&u8_gc->lock, flags); @@ -80,7 +75,7 @@ static int u8_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val) static void u8_gpio_save_regs(struct of_mm_gpio_chip *mm_gc) { - struct u8_gpio_chip *u8_gc = to_u8_gpio_chip(mm_gc); + struct u8_gpio_chip *u8_gc = gpiochip_get_data(&mm_gc->gc); u8_gc->data = in_8(mm_gc->regs); } @@ -108,7 +103,7 @@ static int __init u8_simple_gpiochip_add(struct device_node *np) gc->get = u8_gpio_get; gc->set = u8_gpio_set; - ret = of_mm_gpiochip_add(np, mm_gc); + ret = of_mm_gpiochip_add_data(np, mm_gc, u8_gc); if (ret) goto err; return 0; |