mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
95 lines
2.0 KiB
C
95 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015 Linaro
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* Peter Griffin <peter.griffin@linaro.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <errno.h>
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static int hi6220_gpio_direction_input(struct udevice *dev, unsigned int gpio)
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{
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struct gpio_bank *bank = dev_get_priv(dev);
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u8 data;
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data = readb(bank->base + HI6220_GPIO_DIR);
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data &= ~(1 << gpio);
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writeb(data, bank->base + HI6220_GPIO_DIR);
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return 0;
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}
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static int hi6220_gpio_set_value(struct udevice *dev, unsigned gpio,
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int value)
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{
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struct gpio_bank *bank = dev_get_priv(dev);
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writeb(!!value << gpio, bank->base + (BIT(gpio + 2)));
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return 0;
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}
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static int hi6220_gpio_direction_output(struct udevice *dev, unsigned gpio,
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int value)
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{
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struct gpio_bank *bank = dev_get_priv(dev);
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u8 data;
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data = readb(bank->base + HI6220_GPIO_DIR);
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data |= 1 << gpio;
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writeb(data, bank->base + HI6220_GPIO_DIR);
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hi6220_gpio_set_value(dev, gpio, value);
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return 0;
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}
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static int hi6220_gpio_get_value(struct udevice *dev, unsigned gpio)
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{
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struct gpio_bank *bank = dev_get_priv(dev);
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return !!readb(bank->base + (BIT(gpio + 2)));
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}
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static const struct dm_gpio_ops gpio_hi6220_ops = {
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.direction_input = hi6220_gpio_direction_input,
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.direction_output = hi6220_gpio_direction_output,
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.get_value = hi6220_gpio_get_value,
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.set_value = hi6220_gpio_set_value,
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};
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static int hi6220_gpio_probe(struct udevice *dev)
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{
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struct gpio_bank *bank = dev_get_priv(dev);
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struct hikey_gpio_platdata *plat = dev_get_platdata(dev);
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struct gpio_dev_priv *uc_priv = dev->uclass_priv;
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char name[18], *str;
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sprintf(name, "GPIO%d_", plat->bank_index);
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str = strdup(name);
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if (!str)
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return -ENOMEM;
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uc_priv->bank_name = str;
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uc_priv->gpio_count = HI6220_GPIO_PER_BANK;
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bank->base = (u8 *)plat->base;
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return 0;
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}
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U_BOOT_DRIVER(gpio_hi6220) = {
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.name = "gpio_hi6220",
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.id = UCLASS_GPIO,
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.ops = &gpio_hi6220_ops,
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.probe = hi6220_gpio_probe,
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.priv_auto_alloc_size = sizeof(struct gpio_bank),
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};
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