47 lines
933 B
C
47 lines
933 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2020 Rockchip Electronics Co., Ltd
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm/uclass.h>
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#include <misc.h>
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struct udevice *misc_otp_get_device(u32 capability)
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{
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const struct misc_ops *ops;
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struct udevice *dev;
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struct uclass *uc;
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int ret;
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u32 cap;
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ret = uclass_get(UCLASS_MISC, &uc);
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if (ret)
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return NULL;
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for (uclass_first_device(UCLASS_MISC, &dev);
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dev;
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uclass_next_device(&dev)) {
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ops = device_get_ops(dev);
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if (!ops || !ops->ioctl)
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continue;
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cap = ops->ioctl(dev, IOCTL_REQ_CAPABILITY, NULL);
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if ((cap & capability) == capability)
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return dev;
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}
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return NULL;
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}
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int misc_otp_read(struct udevice *dev, int offset, void *buf, int size)
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{
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return misc_read(dev, offset, buf, size);
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}
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int misc_otp_write(struct udevice *dev, int offset, const void *buf, int size)
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{
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return misc_write(dev, offset, (void *)buf, size);
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}
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