1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2016 Toradex AG 4 * Stefan Agner <stefan.agner@toradex.com> 5 */ 6 7 #include <common.h> 8 #include <dm.h> 9 #include <errno.h> 10 #include <fdtdec.h> 11 #include <linux/libfdt.h> 12 #include <power/rn5t567_pmic.h> 13 #include <power/pmic.h> 14 15 static int rn5t567_reg_count(struct udevice *dev) 16 { 17 return RN5T567_NUM_OF_REGS; 18 } 19 20 static int rn5t567_write(struct udevice *dev, uint reg, const uint8_t *buff, 21 int len) 22 { 23 int ret; 24 25 ret = dm_i2c_write(dev, reg, buff, len); 26 if (ret) { 27 debug("write error to device: %p register: %#x!\n", dev, reg); 28 return ret; 29 } 30 31 return 0; 32 } 33 34 static int rn5t567_read(struct udevice *dev, uint reg, uint8_t *buff, int len) 35 { 36 int ret; 37 38 ret = dm_i2c_read(dev, reg, buff, len); 39 if (ret) { 40 debug("read error from device: %p register: %#x!\n", dev, reg); 41 return ret; 42 } 43 44 return 0; 45 } 46 47 static struct dm_pmic_ops rn5t567_ops = { 48 .reg_count = rn5t567_reg_count, 49 .read = rn5t567_read, 50 .write = rn5t567_write, 51 }; 52 53 static const struct udevice_id rn5t567_ids[] = { 54 { .compatible = "ricoh,rn5t567" }, 55 { } 56 }; 57 58 U_BOOT_DRIVER(pmic_rn5t567) = { 59 .name = "rn5t567 pmic", 60 .id = UCLASS_PMIC, 61 .of_match = rn5t567_ids, 62 .ops = &rn5t567_ops, 63 }; 64