mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-24 13:43:28 +00:00
e2e69291ee
These headers follow the pattern:
| #if CONFIG_IS_ENABLED(FANCY_FEATURE)
| void foo(void);
| #else
| static inline void foo(void) { return -ENOSYS; }
| #endif
In the #else path ENOSYS is used, however linux/errno.h is not included.
If errno.h has not been included already the compiler errors out even
if the inline function is not referenced.
Make those headers self contained.
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
149 lines
3.9 KiB
C
149 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2020 - Texas Instruments Incorporated - https://www.ti.com/
|
|
* Dave Gerlach <d-gerlach@ti.com>
|
|
*/
|
|
|
|
#ifndef __SOC_H
|
|
#define __SOC_H
|
|
|
|
#include <linux/errno.h>
|
|
|
|
#define SOC_MAX_STR_SIZE 128
|
|
|
|
struct udevice;
|
|
|
|
/**
|
|
* struct soc_attr - Contains SoC identify information to be used in
|
|
* SoC matching. An array of these structs
|
|
* representing different SoCs can be passed to
|
|
* soc_device_match and the struct matching the SoC
|
|
* in use will be returned.
|
|
*
|
|
* @family - Name of SoC family that can include multiple related SoC
|
|
* variants. Example: am33
|
|
* @machine - Name of a specific SoC. Example: am3352
|
|
* @revision - Name of a specific SoC revision. Example: SR1.1
|
|
* @data - A pointer to user data for the SoC variant
|
|
*/
|
|
struct soc_attr {
|
|
const char *family;
|
|
const char *machine;
|
|
const char *revision;
|
|
const void *data;
|
|
};
|
|
|
|
struct soc_ops {
|
|
/**
|
|
* get_machine() - Get machine name of an SOC
|
|
*
|
|
* @dev: Device to check (UCLASS_SOC)
|
|
* @buf: Buffer to place string
|
|
* @size: Size of string space
|
|
* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error
|
|
*/
|
|
int (*get_machine)(struct udevice *dev, char *buf, int size);
|
|
|
|
/**
|
|
* get_revision() - Get revision name of a SOC
|
|
*
|
|
* @dev: Device to check (UCLASS_SOC)
|
|
* @buf: Buffer to place string
|
|
* @size: Size of string space
|
|
* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error
|
|
*/
|
|
int (*get_revision)(struct udevice *dev, char *buf, int size);
|
|
|
|
/**
|
|
* get_family() - Get family name of an SOC
|
|
*
|
|
* @dev: Device to check (UCLASS_SOC)
|
|
* @buf: Buffer to place string
|
|
* @size: Size of string space
|
|
* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error
|
|
*/
|
|
int (*get_family)(struct udevice *dev, char *buf, int size);
|
|
};
|
|
|
|
#define soc_get_ops(dev) ((struct soc_ops *)(dev)->driver->ops)
|
|
|
|
#ifdef CONFIG_SOC_DEVICE
|
|
/**
|
|
* soc_get() - Return the soc device for the soc in use.
|
|
* @devp: Pointer to structure to receive the soc device.
|
|
*
|
|
* Since there can only be at most one SOC instance, the API can supply a
|
|
* function that returns the unique device.
|
|
*
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int soc_get(struct udevice **devp);
|
|
|
|
/**
|
|
* soc_get_machine() - Get machine name of an SOC
|
|
* @dev: Device to check (UCLASS_SOC)
|
|
* @buf: Buffer to place string
|
|
* @size: Size of string space
|
|
*
|
|
* Return: 0 if OK, -ENOSPC if buffer is too small, other -ve on error
|
|
*/
|
|
int soc_get_machine(struct udevice *dev, char *buf, int size);
|
|
|
|
/**
|
|
* soc_get_revision() - Get revision name of an SOC
|
|
* @dev: Device to check (UCLASS_SOC)
|
|
* @buf: Buffer to place string
|
|
* @size: Size of string space
|
|
*
|
|
* Return: 0 if OK, -ENOSPC if buffer is too small, other -ve on error
|
|
*/
|
|
int soc_get_revision(struct udevice *dev, char *buf, int size);
|
|
|
|
/**
|
|
* soc_get_family() - Get family name of an SOC
|
|
* @dev: Device to check (UCLASS_SOC)
|
|
* @buf: Buffer to place string
|
|
* @size: Size of string space
|
|
*
|
|
* Return: 0 if OK, -ENOSPC if buffer is too small, other -ve on error
|
|
*/
|
|
int soc_get_family(struct udevice *dev, char *buf, int size);
|
|
|
|
/**
|
|
* soc_device_match() - Return match from an array of soc_attr
|
|
* @matches: Array with any combination of family, revision or machine set
|
|
*
|
|
* Return: Pointer to struct from matches array with set attributes matching
|
|
* those provided by the soc device, or NULL if no match found.
|
|
*/
|
|
const struct soc_attr *
|
|
soc_device_match(const struct soc_attr *matches);
|
|
|
|
#else
|
|
static inline int soc_get(struct udevice **devp)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int soc_get_machine(struct udevice *dev, char *buf, int size)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int soc_get_revision(struct udevice *dev, char *buf, int size)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int soc_get_family(struct udevice *dev, char *buf, int size)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline const struct soc_attr *
|
|
soc_device_match(const struct soc_attr *matches)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
#endif /* _SOC_H */
|