1 // SPDX-License-Identifier: GPL-2.0
3 // Register map access API - SPMI support
5 // Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
7 // Based on regmap-i2c.c:
20 	u8 addr = *(u8 *)reg;  in regmap_spmi_base_read()  local
25 	while (val_size-- && !err)  in regmap_spmi_base_read()
26 		err = spmi_register_read(context, addr++, val++);  in regmap_spmi_base_read()
35 	const u8 *data = val;  in regmap_spmi_base_gather_write()  local
36 	u8 addr = *(u8 *)reg;  in regmap_spmi_base_gather_write()  local
42 	 * SPMI defines a more bandwidth-efficient 'Register 0 Write' sequence,  in regmap_spmi_base_gather_write()
45 	if (addr == 0 && val_size) {  in regmap_spmi_base_gather_write()
46 		err = spmi_register_zero_write(context, *data);  in regmap_spmi_base_gather_write()
50 		data++;  in regmap_spmi_base_gather_write()
51 		addr++;  in regmap_spmi_base_gather_write()
52 		val_size--;  in regmap_spmi_base_gather_write()
56 		err = spmi_register_write(context, addr, *data);  in regmap_spmi_base_gather_write()
60 		data++;  in regmap_spmi_base_gather_write()
61 		addr++;  in regmap_spmi_base_gather_write()
62 		val_size--;  in regmap_spmi_base_gather_write()
69 static int regmap_spmi_base_write(void *context, const void *data,  in regmap_spmi_base_write()  argument
73 	return regmap_spmi_base_gather_write(context, data, 1, data + 1,  in regmap_spmi_base_write()
74 					     count - 1);  in regmap_spmi_base_write()
90 	return __regmap_init(&sdev->dev, &regmap_spmi_base, sdev, config,  in __regmap_init_spmi_base()
100 	return __devm_regmap_init(&sdev->dev, &regmap_spmi_base, sdev, config,  in __devm_regmap_init_spmi_base()
111 	u16 addr;  in regmap_spmi_ext_read()  local
115 	addr = *(u16 *)reg;  in regmap_spmi_ext_read()
119 	 * bandwidth-efficient 'Extended Register Read' command when possible  in regmap_spmi_ext_read()
121 	while (addr <= 0xFF && val_size) {  in regmap_spmi_ext_read()
124 		err = spmi_ext_register_read(context, addr, val, len);  in regmap_spmi_ext_read()
128 		addr += len;  in regmap_spmi_ext_read()
130 		val_size -= len;  in regmap_spmi_ext_read()
136 		err = spmi_ext_register_readl(context, addr, val, len);  in regmap_spmi_ext_read()
140 		addr += len;  in regmap_spmi_ext_read()
142 		val_size -= len;  in regmap_spmi_ext_read()
155 	u16 addr;  in regmap_spmi_ext_gather_write()  local
159 	addr = *(u16 *)reg;  in regmap_spmi_ext_gather_write()
161 	while (addr <= 0xFF && val_size) {  in regmap_spmi_ext_gather_write()
164 		err = spmi_ext_register_write(context, addr, val, len);  in regmap_spmi_ext_gather_write()
168 		addr += len;  in regmap_spmi_ext_gather_write()
170 		val_size -= len;  in regmap_spmi_ext_gather_write()
176 		err = spmi_ext_register_writel(context, addr, val, len);  in regmap_spmi_ext_gather_write()
180 		addr += len;  in regmap_spmi_ext_gather_write()
182 		val_size -= len;  in regmap_spmi_ext_gather_write()
189 static int regmap_spmi_ext_write(void *context, const void *data,  in regmap_spmi_ext_write()  argument
193 	return regmap_spmi_ext_gather_write(context, data, 2, data + 2,  in regmap_spmi_ext_write()
194 					    count - 2);  in regmap_spmi_ext_write()
210 	return __regmap_init(&sdev->dev, &regmap_spmi_ext, sdev, config,  in __regmap_init_spmi_ext()
220 	return __devm_regmap_init(&sdev->dev, &regmap_spmi_ext, sdev, config,  in __devm_regmap_init_spmi_ext()
225 MODULE_DESCRIPTION("Register map access API - SPMI support");