Lines Matching refs:max8952
3 * max8952.c - Voltage and current regulation for the Maxim 8952
15 #include <linux/regulator/max8952.h>
44 static int max8952_read_reg(struct max8952_data *max8952, u8 reg)
46 int ret = i2c_smbus_read_byte_data(max8952->client, reg);
54 static int max8952_write_reg(struct max8952_data *max8952,
57 return i2c_smbus_write_byte_data(max8952->client, reg, value);
63 struct max8952_data *max8952 = rdev_get_drvdata(rdev);
68 return (max8952->pdata->dvs_mode[selector] * 10 + 770) * 1000;
73 struct max8952_data *max8952 = rdev_get_drvdata(rdev);
76 if (max8952->vid0)
78 if (max8952->vid1)
87 struct max8952_data *max8952 = rdev_get_drvdata(rdev);
89 if (!max8952->vid0_gpiod || !max8952->vid1_gpiod) {
94 max8952->vid0 = selector & 0x1;
95 max8952->vid1 = (selector >> 1) & 0x1;
96 gpiod_set_value(max8952->vid0_gpiod, max8952->vid0);
97 gpiod_set_value(max8952->vid1_gpiod, max8952->vid1);
119 { .compatible = "maxim,max8952" },
135 if (of_property_read_u32(np, "max8952,default-mode", &pd->default_mode))
138 ret = of_property_read_u32_array(np, "max8952,dvs-mode-microvolt",
141 dev_err(dev, "max8952,dvs-mode-microvolt property not specified");
153 if (of_property_read_u32(np, "max8952,sync-freq", &pd->sync_freq))
154 dev_warn(dev, "max8952,sync-freq property not specified, defaulting to 26MHz\n");
156 if (of_property_read_u32(np, "max8952,ramp-speed", &pd->ramp_speed))
157 dev_warn(dev, "max8952,ramp-speed property not specified, defaulting to 32mV/us\n");
180 struct max8952_data *max8952;
198 max8952 = devm_kzalloc(&client->dev, sizeof(struct max8952_data),
200 if (!max8952)
203 max8952->client = client;
204 max8952->pdata = pdata;
208 config.driver_data = max8952;
221 "max8952,en",
235 max8952->vid0 = pdata->default_mode & 0x1;
236 max8952->vid1 = (pdata->default_mode >> 1) & 0x1;
239 gflags = max8952->vid0 ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
240 max8952->vid0_gpiod = devm_gpiod_get_index_optional(&client->dev,
241 "max8952,vid",
243 if (IS_ERR(max8952->vid0_gpiod))
244 return PTR_ERR(max8952->vid0_gpiod);
245 gflags = max8952->vid1 ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
246 max8952->vid1_gpiod = devm_gpiod_get_index_optional(&client->dev,
247 "max8952,vid",
249 if (IS_ERR(max8952->vid1_gpiod))
250 return PTR_ERR(max8952->vid1_gpiod);
253 if (!max8952->vid0_gpiod || !max8952->vid1_gpiod) {
256 max8952->vid0 = 0;
257 max8952->vid1 = 0;
259 if (max8952->vid0_gpiod)
260 gpiod_set_value(max8952->vid0_gpiod, 0);
261 if (max8952->vid1_gpiod)
262 gpiod_set_value(max8952->vid1_gpiod, 0);
265 max8952_write_reg(max8952, MAX8952_REG_CONTROL, 0x60);
278 max8952_write_reg(max8952, MAX8952_REG_CONTROL, 0x0);
281 max8952_write_reg(max8952, MAX8952_REG_MODE0,
282 (max8952_read_reg(max8952,
285 max8952_write_reg(max8952, MAX8952_REG_MODE1,
286 (max8952_read_reg(max8952,
289 max8952_write_reg(max8952, MAX8952_REG_MODE2,
290 (max8952_read_reg(max8952,
293 max8952_write_reg(max8952, MAX8952_REG_MODE3,
294 (max8952_read_reg(max8952,
298 max8952_write_reg(max8952, MAX8952_REG_SYNC,
299 (max8952_read_reg(max8952, MAX8952_REG_SYNC) & 0x3F) |
301 max8952_write_reg(max8952, MAX8952_REG_RAMP,
302 (max8952_read_reg(max8952, MAX8952_REG_RAMP) & 0x1F) |
305 i2c_set_clientdata(client, max8952);
311 { "max8952", 0 },
319 .name = "max8952",