gpio: pl061: bind pinctrl by gpio request
Add the pl061_gpio_request() to request pinctrl. Create the logic between pl061 gpio driver and pinctrl (pinctrl-single) driver. While a gpio pin is requested, it will request pinctrl driver to set that pin with gpio function mode. So pinctrl driver should append .gpio_request_enable() in pinmux_ops. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Родитель
51e13c2475
Коммит
39b70ee051
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@ -23,6 +23,7 @@
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#include <linux/amba/bus.h>
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#include <linux/amba/pl061.h>
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#include <linux/slab.h>
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#include <linux/pinctrl/consumer.h>
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#include <linux/pm.h>
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#include <asm/mach/irq.h>
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@ -60,6 +61,17 @@ struct pl061_gpio {
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#endif
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};
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static int pl061_gpio_request(struct gpio_chip *chip, unsigned offset)
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{
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/*
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* Map back to global GPIO space and request muxing, the direction
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* parameter does not matter for this controller.
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*/
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int gpio = chip->base + offset;
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return pinctrl_request_gpio(gpio);
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}
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static int pl061_direction_input(struct gpio_chip *gc, unsigned offset)
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{
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struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
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@ -274,6 +286,7 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
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spin_lock_init(&chip->lock);
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chip->gc.request = pl061_gpio_request;
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chip->gc.direction_input = pl061_direction_input;
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chip->gc.direction_output = pl061_direction_output;
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chip->gc.get = pl061_get_value;
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