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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PBL_EEPROM_H_
#define __PBL_EEPROM_H_
#include <common.h>
#include <pbl/i2c.h>
static inline int eeprom_read(struct pbl_i2c *i2c, u16 client_addr, u32 addr, void *buf, u16 count)
{
u8 msgbuf[2];
struct i2c_msg msg[] = {
{
.addr = client_addr,
.buf = msgbuf,
}, {
.addr = client_addr,
.flags = I2C_M_RD,
.buf = buf,
.len = count,
},
};
int ret, i = 0;
if (addr & I2C_ADDR_16_BIT)
msgbuf[i++] = addr >> 8;
msgbuf[i++] = addr;
msg[0].len = i;
ret = pbl_i2c_xfer(i2c, msg, ARRAY_SIZE(msg));
if (ret < 0)
return ret;
if (ret != ARRAY_SIZE(msg)) {
pr_err("Failed to read from eeprom@%x: %d\n", client_addr, ret);
return -EIO;
}
return 0;
}
#endif
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