1 // SPDX-License-Identifier: GPL-2.0+
20 static int bcm2835_gpio_direction_input(struct udevice *dev, unsigned gpio)  in bcm2835_gpio_direction_input()
22 	struct bcm2835_gpios *gpios = dev_get_priv(dev);  in bcm2835_gpio_direction_input()  local
25 	val = readl(&gpios->reg->gpfsel[BCM2835_GPIO_FSEL_BANK(gpio)]);  in bcm2835_gpio_direction_input()
28 	writel(val, &gpios->reg->gpfsel[BCM2835_GPIO_FSEL_BANK(gpio)]);  in bcm2835_gpio_direction_input()
33 static int bcm2835_gpio_direction_output(struct udevice *dev, unsigned int gpio,  in bcm2835_gpio_direction_output()
34 					 int value)  in bcm2835_gpio_direction_output()
36 	struct bcm2835_gpios *gpios = dev_get_priv(dev);  in bcm2835_gpio_direction_output()  local
41 	val = readl(&gpios->reg->gpfsel[BCM2835_GPIO_FSEL_BANK(gpio)]);  in bcm2835_gpio_direction_output()
44 	writel(val, &gpios->reg->gpfsel[BCM2835_GPIO_FSEL_BANK(gpio)]);  in bcm2835_gpio_direction_output()
49 static int bcm2835_get_value(const struct bcm2835_gpios *gpios, unsigned gpio)  in bcm2835_get_value()  argument
53 	val = readl(&gpios->reg->gplev[BCM2835_GPIO_COMMON_BANK(gpio)]);  in bcm2835_get_value()
58 static int bcm2835_gpio_get_value(struct udevice *dev, unsigned gpio)  in bcm2835_gpio_get_value()
60 	const struct bcm2835_gpios *gpios = dev_get_priv(dev);  in bcm2835_gpio_get_value()  local
62 	return bcm2835_get_value(gpios, gpio);  in bcm2835_gpio_get_value()
65 static int bcm2835_gpio_set_value(struct udevice *dev, unsigned gpio,  in bcm2835_gpio_set_value()
66 				  int value)  in bcm2835_gpio_set_value()
68 	struct bcm2835_gpios *gpios = dev_get_priv(dev);  in bcm2835_gpio_set_value()  local
69 	u32 *output_reg = value ? gpios->reg->gpset : gpios->reg->gpclr;  in bcm2835_gpio_set_value()
77 static int bcm2835_gpio_get_function(struct udevice *dev, unsigned offset)  in bcm2835_gpio_get_function()
80 	int funcid;  in bcm2835_gpio_get_function()
82 	funcid = pinctrl_get_gpio_mux(priv->pinctrl, 0, offset);  in bcm2835_gpio_get_function()
102 static int bcm2835_gpio_probe(struct udevice *dev)  in bcm2835_gpio_probe()
104 	struct bcm2835_gpios *gpios = dev_get_priv(dev);  in bcm2835_gpio_probe()  local
108 	uc_priv->bank_name = "GPIO";  in bcm2835_gpio_probe()
109 	uc_priv->gpio_count = BCM2835_GPIO_COUNT;  in bcm2835_gpio_probe()
110 	gpios->reg = (struct bcm2835_gpio_regs *)plat->base;  in bcm2835_gpio_probe()
113 	gpios->pinctrl = dev->parent;  in bcm2835_gpio_probe()
119 static int bcm2835_gpio_ofdata_to_platdata(struct udevice *dev)  in bcm2835_gpio_ofdata_to_platdata()
126 		return -EINVAL;  in bcm2835_gpio_ofdata_to_platdata()
128 	plat->base = addr;  in bcm2835_gpio_ofdata_to_platdata()