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9aebf4de22
Add new attribute named "serial_number" as a standard interface for user space to acquire the serial number of the device. For ST-Ericsson SoCs this is exposed by the cryptically named "soc_id" attribute, but this provides a human readable standardized name for this property. Tested-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Vaishali Thakkar <vaishali.thakkar@linaro.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) ST-Ericsson SA 2011
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* Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson.
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*/
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#ifndef __SOC_BUS_H
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#define __SOC_BUS_H
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#include <linux/device.h>
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struct soc_device_attribute {
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const char *machine;
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const char *family;
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const char *revision;
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const char *serial_number;
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const char *soc_id;
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const void *data;
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};
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/**
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* soc_device_register - register SoC as a device
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* @soc_plat_dev_attr: Attributes passed from platform to be attributed to a SoC
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*/
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struct soc_device *soc_device_register(
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struct soc_device_attribute *soc_plat_dev_attr);
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/**
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* soc_device_unregister - unregister SoC device
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* @dev: SoC device to be unregistered
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*/
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void soc_device_unregister(struct soc_device *soc_dev);
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/**
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* soc_device_to_device - helper function to fetch struct device
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* @soc: Previously registered SoC device container
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*/
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struct device *soc_device_to_device(struct soc_device *soc);
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#ifdef CONFIG_SOC_BUS
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const struct soc_device_attribute *soc_device_match(
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const struct soc_device_attribute *matches);
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#else
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static inline const struct soc_device_attribute *soc_device_match(
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const struct soc_device_attribute *matches) { return NULL; }
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#endif
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#endif /* __SOC_BUS_H */
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