diff options
Diffstat (limited to 'arch/powerpc/platforms/52xx/mpc52xx_gpio.c')
| -rw-r--r-- | arch/powerpc/platforms/52xx/mpc52xx_gpio.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_gpio.c b/arch/powerpc/platforms/52xx/mpc52xx_gpio.c index 07f89ae46d04..2b8d8ef32e4e 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_gpio.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_gpio.c @@ -354,88 +354,6 @@ static struct of_platform_driver mpc52xx_simple_gpiochip_driver = { .remove = mpc52xx_gpiochip_remove, }; -/* - * GPIO LIB API implementation for gpt GPIOs. - * - * Each gpt only has a single GPIO. - */ -static int mpc52xx_gpt_gpio_get(struct gpio_chip *gc, unsigned int gpio) -{ - struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); - struct mpc52xx_gpt __iomem *regs = mm_gc->regs; - - return (in_be32(®s->status) & (1 << (31 - 23))) ? 1 : 0; -} - -static void -mpc52xx_gpt_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 mpc52xx_gpt __iomem *regs = mm_gc->regs; - - if (val) - out_be32(®s->mode, 0x34); - else - out_be32(®s->mode, 0x24); - - pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val); -} - -static int mpc52xx_gpt_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio) -{ - struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); - struct mpc52xx_gpt __iomem *regs = mm_gc->regs; - - out_be32(®s->mode, 0x04); - - return 0; -} - -static int -mpc52xx_gpt_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val) -{ - mpc52xx_gpt_gpio_set(gc, gpio, val); - pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val); - - return 0; -} - -static int __devinit mpc52xx_gpt_gpiochip_probe(struct of_device *ofdev, - const struct of_device_id *match) -{ - struct of_mm_gpio_chip *mmchip; - struct of_gpio_chip *chip; - - mmchip = kzalloc(sizeof(*mmchip), GFP_KERNEL); - if (!mmchip) - return -ENOMEM; - - chip = &mmchip->of_gc; - - chip->gpio_cells = 2; - chip->gc.ngpio = 1; - chip->gc.direction_input = mpc52xx_gpt_gpio_dir_in; - chip->gc.direction_output = mpc52xx_gpt_gpio_dir_out; - chip->gc.get = mpc52xx_gpt_gpio_get; - chip->gc.set = mpc52xx_gpt_gpio_set; - - return of_mm_gpiochip_add(ofdev->node, mmchip); -} - -static const struct of_device_id mpc52xx_gpt_gpiochip_match[] = { - { - .compatible = "fsl,mpc5200-gpt-gpio", - }, - {} -}; - -static struct of_platform_driver mpc52xx_gpt_gpiochip_driver = { - .name = "gpio_gpt", - .match_table = mpc52xx_gpt_gpiochip_match, - .probe = mpc52xx_gpt_gpiochip_probe, - .remove = mpc52xx_gpiochip_remove, -}; - static int __init mpc52xx_gpio_init(void) { if (of_register_platform_driver(&mpc52xx_wkup_gpiochip_driver)) @@ -444,9 +362,6 @@ static int __init mpc52xx_gpio_init(void) if (of_register_platform_driver(&mpc52xx_simple_gpiochip_driver)) printk(KERN_ERR "Unable to register simple GPIO driver\n"); - if (of_register_platform_driver(&mpc52xx_gpt_gpiochip_driver)) - printk(KERN_ERR "Unable to register gpt GPIO driver\n"); - return 0; } |