1 /* 2 * Copyright (C) 2015 Samsung Electronics 3 * Przemyslaw Marczak <p.marczak@samsung.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <fdtdec.h> 10 #include <errno.h> 11 #include <dm.h> 12 #include <i2c.h> 13 #include <power/pmic.h> 14 #include <power/s2mps11.h> 15 16 DECLARE_GLOBAL_DATA_PTR; 17 18 static int s2mps11_reg_count(struct udevice *dev) 19 { 20 return S2MPS11_REG_COUNT; 21 } 22 23 static int s2mps11_write(struct udevice *dev, uint reg, const uint8_t *buff, 24 int len) 25 { 26 int ret; 27 28 ret = dm_i2c_write(dev, reg, buff, len); 29 if (ret) 30 pr_err("write error to device: %p register: %#x!", dev, reg); 31 32 return ret; 33 } 34 35 static int s2mps11_read(struct udevice *dev, uint reg, uint8_t *buff, int len) 36 { 37 int ret; 38 39 ret = dm_i2c_read(dev, reg, buff, len); 40 if (ret) 41 pr_err("read error from device: %p register: %#x!", dev, reg); 42 43 return ret; 44 } 45 46 static struct dm_pmic_ops s2mps11_ops = { 47 .reg_count = s2mps11_reg_count, 48 .read = s2mps11_read, 49 .write = s2mps11_write, 50 }; 51 52 static const struct udevice_id s2mps11_ids[] = { 53 { .compatible = "samsung,s2mps11-pmic" }, 54 { } 55 }; 56 57 U_BOOT_DRIVER(pmic_s2mps11) = { 58 .name = "s2mps11_pmic", 59 .id = UCLASS_PMIC, 60 .of_match = s2mps11_ids, 61 .ops = &s2mps11_ops, 62 }; 63