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lib: utils/i2c: Add simple FDT based I2C framework

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FDT based I2C framework on the top of I2C library.

The drivers are probed on demand by fdt_i2c_adapter_get
function.

Tested-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Tested-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Signed-off-by: Nikita Shubin <n.shubin@yadro.com>
This commit is contained in:
Nikita Shubin
2021-11-10 12:42:28 +03:00
committed by Anup Patel
parent 2c964a2e15
commit 6ca6bcafb7
3 changed files with 114 additions and 0 deletions
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26
include/sbi_utils/i2c/fdt_i2c.h Normal file
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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2021 YADRO
*
* Authors:
* Nikita Shubin <n.shubin@yadro.com>
*/
#ifndef __FDT_I2C_H__
#define __FDT_I2C_H__
#include <sbi_utils/i2c/i2c.h>
/** FDT based I2C adapter driver */
struct fdt_i2c_adapter {
const struct fdt_match *match_table;
int (*init)(void *fdt, int nodeoff,
const struct fdt_match *match);
};
/** Get I2C adapter identified by nodeoff */
int fdt_i2c_adapter_get(void *fdt, int nodeoff,
struct i2c_adapter **out_adapter);
#endif