diff options
Diffstat (limited to 'include/pbl/pmic.h')
| -rw-r--r-- | include/pbl/pmic.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/pbl/pmic.h b/include/pbl/pmic.h new file mode 100644 index 0000000000..0f882c5649 --- /dev/null +++ b/include/pbl/pmic.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PBL_PMIC_H_ +#define __PBL_PMIC_H_ + +#include <pbl/i2c.h> + +struct pmic_config { + u8 reg; + u8 val; +}; + +static void pmic_reg_write(struct pbl_i2c *i2c, int addr, u8 reg, u8 val) +{ + int ret; + u8 buf[32]; + struct i2c_msg msgs[] = { + { + .addr = addr, + .buf = buf, + }, + }; + + buf[0] = reg; + buf[1] = val; + + msgs[0].len = 2; + + ret = pbl_i2c_xfer(i2c, msgs, ARRAY_SIZE(msgs)); + if (ret != 1) + pr_err("Failed to write to pmic@%x: %d\n", addr, ret); +} + +static inline void pmic_configure(struct pbl_i2c *i2c, u8 addr, + const struct pmic_config *config, + size_t config_len) +{ + for (; config_len--; config++) + pmic_reg_write(i2c, addr, config->reg, config->val); +} + +#endif |