Lines Matching refs:lp
105 static int arcxcnn_update_field(struct arcxcnn *lp, u8 reg, u8 mask, u8 data) in arcxcnn_update_field() argument
110 ret = i2c_smbus_read_byte_data(lp->client, reg); in arcxcnn_update_field()
112 dev_err(lp->dev, "failed to read 0x%.2x\n", reg); in arcxcnn_update_field()
120 return i2c_smbus_write_byte_data(lp->client, reg, tmp); in arcxcnn_update_field()
123 static int arcxcnn_set_brightness(struct arcxcnn *lp, u32 brightness) in arcxcnn_set_brightness() argument
130 ret = i2c_smbus_write_byte_data(lp->client, in arcxcnn_set_brightness()
137 return i2c_smbus_write_byte_data(lp->client, in arcxcnn_set_brightness()
143 struct arcxcnn *lp = bl_get_data(bl); in arcxcnn_bl_update_status() local
150 ret = arcxcnn_set_brightness(lp, brightness); in arcxcnn_bl_update_status()
155 return arcxcnn_update_field(lp, ARCXCNN_CMD, ARCXCNN_CMD_STDBY, in arcxcnn_bl_update_status()
164 static int arcxcnn_backlight_register(struct arcxcnn *lp) in arcxcnn_backlight_register() argument
167 const char *name = lp->pdata->name ? : "arctic_bl"; in arcxcnn_backlight_register()
169 props = devm_kzalloc(lp->dev, sizeof(*props), GFP_KERNEL); in arcxcnn_backlight_register()
176 if (lp->pdata->initial_brightness > props->max_brightness) in arcxcnn_backlight_register()
177 lp->pdata->initial_brightness = props->max_brightness; in arcxcnn_backlight_register()
179 props->brightness = lp->pdata->initial_brightness; in arcxcnn_backlight_register()
181 lp->bl = devm_backlight_device_register(lp->dev, name, lp->dev, lp, in arcxcnn_backlight_register()
183 return PTR_ERR_OR_ZERO(lp->bl); in arcxcnn_backlight_register()
186 static void arcxcnn_parse_dt(struct arcxcnn *lp) in arcxcnn_parse_dt() argument
188 struct device *dev = lp->dev; in arcxcnn_parse_dt()
197 ret = of_property_read_string(node, "label", &lp->pdata->name); in arcxcnn_parse_dt()
199 lp->pdata->name = NULL; in arcxcnn_parse_dt()
203 lp->pdata->initial_brightness = prog_val; in arcxcnn_parse_dt()
207 lp->pdata->led_config_0 = (u8)prog_val; in arcxcnn_parse_dt()
211 lp->pdata->led_config_1 = (u8)prog_val; in arcxcnn_parse_dt()
215 lp->pdata->dim_freq = (u8)prog_val; in arcxcnn_parse_dt()
219 lp->pdata->comp_config = (u8)prog_val; in arcxcnn_parse_dt()
223 lp->pdata->filter_config = (u8)prog_val; in arcxcnn_parse_dt()
227 lp->pdata->trim_config = (u8)prog_val; in arcxcnn_parse_dt()
231 lp->pdata->leden = ARCXCNN_LEDEN_MASK; /* all on is default */ in arcxcnn_parse_dt()
244 lp->pdata->leden = 0; in arcxcnn_parse_dt()
250 lp->pdata->leden |= onbit; in arcxcnn_parse_dt()
257 struct arcxcnn *lp; in arcxcnn_probe() local
263 lp = devm_kzalloc(&cl->dev, sizeof(*lp), GFP_KERNEL); in arcxcnn_probe()
264 if (!lp) in arcxcnn_probe()
267 lp->client = cl; in arcxcnn_probe()
268 lp->dev = &cl->dev; in arcxcnn_probe()
269 lp->pdata = dev_get_platdata(&cl->dev); in arcxcnn_probe()
272 ret = i2c_smbus_write_byte_data(lp->client, in arcxcnn_probe()
277 if (!lp->pdata) { in arcxcnn_probe()
278 lp->pdata = devm_kzalloc(lp->dev, in arcxcnn_probe()
279 sizeof(*lp->pdata), GFP_KERNEL); in arcxcnn_probe()
280 if (!lp->pdata) in arcxcnn_probe()
284 lp->pdata->name = NULL; in arcxcnn_probe()
285 lp->pdata->initial_brightness = INIT_BRIGHT; in arcxcnn_probe()
286 lp->pdata->leden = ARCXCNN_LEDEN_MASK; in arcxcnn_probe()
288 lp->pdata->led_config_0 = i2c_smbus_read_byte_data( in arcxcnn_probe()
289 lp->client, ARCXCNN_FADECTRL); in arcxcnn_probe()
291 lp->pdata->led_config_1 = i2c_smbus_read_byte_data( in arcxcnn_probe()
292 lp->client, ARCXCNN_ILED_CONFIG); in arcxcnn_probe()
294 lp->pdata->led_config_1 |= ARCXCNN_ILED_DIM_INT; in arcxcnn_probe()
296 lp->pdata->dim_freq = i2c_smbus_read_byte_data( in arcxcnn_probe()
297 lp->client, ARCXCNN_DIMFREQ); in arcxcnn_probe()
299 lp->pdata->comp_config = i2c_smbus_read_byte_data( in arcxcnn_probe()
300 lp->client, ARCXCNN_COMP_CONFIG); in arcxcnn_probe()
302 lp->pdata->filter_config = i2c_smbus_read_byte_data( in arcxcnn_probe()
303 lp->client, ARCXCNN_FILT_CONFIG); in arcxcnn_probe()
305 lp->pdata->trim_config = i2c_smbus_read_byte_data( in arcxcnn_probe()
306 lp->client, ARCXCNN_IMAXTUNE); in arcxcnn_probe()
309 arcxcnn_parse_dt(lp); in arcxcnn_probe()
312 i2c_set_clientdata(cl, lp); in arcxcnn_probe()
315 if (lp->pdata->initial_brightness > MAX_BRIGHTNESS) in arcxcnn_probe()
316 lp->pdata->initial_brightness = MAX_BRIGHTNESS; in arcxcnn_probe()
319 ret = arcxcnn_set_brightness(lp, lp->pdata->initial_brightness); in arcxcnn_probe()
324 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_FADECTRL, in arcxcnn_probe()
325 lp->pdata->led_config_0); in arcxcnn_probe()
329 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_ILED_CONFIG, in arcxcnn_probe()
330 lp->pdata->led_config_1); in arcxcnn_probe()
334 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_DIMFREQ, in arcxcnn_probe()
335 lp->pdata->dim_freq); in arcxcnn_probe()
339 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_COMP_CONFIG, in arcxcnn_probe()
340 lp->pdata->comp_config); in arcxcnn_probe()
344 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_FILT_CONFIG, in arcxcnn_probe()
345 lp->pdata->filter_config); in arcxcnn_probe()
349 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_IMAXTUNE, in arcxcnn_probe()
350 lp->pdata->trim_config); in arcxcnn_probe()
355 arcxcnn_update_field(lp, ARCXCNN_LEDEN, in arcxcnn_probe()
356 ARCXCNN_LEDEN_MASK, lp->pdata->leden); in arcxcnn_probe()
358 ret = arcxcnn_backlight_register(lp); in arcxcnn_probe()
362 backlight_update_status(lp->bl); in arcxcnn_probe()
367 dev_err(lp->dev, in arcxcnn_probe()
371 dev_err(lp->dev, in arcxcnn_probe()
378 struct arcxcnn *lp = i2c_get_clientdata(cl); in arcxcnn_remove() local
381 i2c_smbus_write_byte_data(lp->client, in arcxcnn_remove()
384 i2c_smbus_write_byte_data(lp->client, in arcxcnn_remove()
387 lp->bl->props.brightness = 0; in arcxcnn_remove()
389 backlight_update_status(lp->bl); in arcxcnn_remove()