Lines Matching full:lp
94 static int arcxcnn_update_field(struct arcxcnn *lp, u8 reg, u8 mask, u8 data) in arcxcnn_update_field() argument
99 ret = i2c_smbus_read_byte_data(lp->client, reg); in arcxcnn_update_field()
101 dev_err(lp->dev, "failed to read 0x%.2x\n", reg); in arcxcnn_update_field()
109 return i2c_smbus_write_byte_data(lp->client, reg, tmp); in arcxcnn_update_field()
112 static int arcxcnn_set_brightness(struct arcxcnn *lp, u32 brightness) in arcxcnn_set_brightness() argument
119 ret = i2c_smbus_write_byte_data(lp->client, in arcxcnn_set_brightness()
126 return i2c_smbus_write_byte_data(lp->client, in arcxcnn_set_brightness()
132 struct arcxcnn *lp = bl_get_data(bl); in arcxcnn_bl_update_status() local
139 ret = arcxcnn_set_brightness(lp, brightness); in arcxcnn_bl_update_status()
144 return arcxcnn_update_field(lp, ARCXCNN_CMD, ARCXCNN_CMD_STDBY, in arcxcnn_bl_update_status()
153 static int arcxcnn_backlight_register(struct arcxcnn *lp) in arcxcnn_backlight_register() argument
156 const char *name = lp->pdata->name ? : "arctic_bl"; in arcxcnn_backlight_register()
158 props = devm_kzalloc(lp->dev, sizeof(*props), GFP_KERNEL); in arcxcnn_backlight_register()
165 if (lp->pdata->initial_brightness > props->max_brightness) in arcxcnn_backlight_register()
166 lp->pdata->initial_brightness = props->max_brightness; in arcxcnn_backlight_register()
168 props->brightness = lp->pdata->initial_brightness; in arcxcnn_backlight_register()
170 lp->bl = devm_backlight_device_register(lp->dev, name, lp->dev, lp, in arcxcnn_backlight_register()
172 return PTR_ERR_OR_ZERO(lp->bl); in arcxcnn_backlight_register()
175 static void arcxcnn_parse_dt(struct arcxcnn *lp) in arcxcnn_parse_dt() argument
177 struct device *dev = lp->dev; in arcxcnn_parse_dt()
186 ret = of_property_read_string(node, "label", &lp->pdata->name); in arcxcnn_parse_dt()
188 lp->pdata->name = NULL; in arcxcnn_parse_dt()
192 lp->pdata->initial_brightness = prog_val; in arcxcnn_parse_dt()
196 lp->pdata->led_config_0 = (u8)prog_val; in arcxcnn_parse_dt()
200 lp->pdata->led_config_1 = (u8)prog_val; in arcxcnn_parse_dt()
204 lp->pdata->dim_freq = (u8)prog_val; in arcxcnn_parse_dt()
208 lp->pdata->comp_config = (u8)prog_val; in arcxcnn_parse_dt()
212 lp->pdata->filter_config = (u8)prog_val; in arcxcnn_parse_dt()
216 lp->pdata->trim_config = (u8)prog_val; in arcxcnn_parse_dt()
220 lp->pdata->leden = ARCXCNN_LEDEN_MASK; /* all on is default */ in arcxcnn_parse_dt()
233 lp->pdata->leden = 0; in arcxcnn_parse_dt()
239 lp->pdata->leden |= onbit; in arcxcnn_parse_dt()
246 struct arcxcnn *lp; in arcxcnn_probe() local
252 lp = devm_kzalloc(&cl->dev, sizeof(*lp), GFP_KERNEL); in arcxcnn_probe()
253 if (!lp) in arcxcnn_probe()
256 lp->client = cl; in arcxcnn_probe()
257 lp->dev = &cl->dev; in arcxcnn_probe()
258 lp->pdata = dev_get_platdata(&cl->dev); in arcxcnn_probe()
261 ret = i2c_smbus_write_byte_data(lp->client, in arcxcnn_probe()
266 if (!lp->pdata) { in arcxcnn_probe()
267 lp->pdata = devm_kzalloc(lp->dev, in arcxcnn_probe()
268 sizeof(*lp->pdata), GFP_KERNEL); in arcxcnn_probe()
269 if (!lp->pdata) in arcxcnn_probe()
273 lp->pdata->name = NULL; in arcxcnn_probe()
274 lp->pdata->initial_brightness = INIT_BRIGHT; in arcxcnn_probe()
275 lp->pdata->leden = ARCXCNN_LEDEN_MASK; in arcxcnn_probe()
277 lp->pdata->led_config_0 = i2c_smbus_read_byte_data( in arcxcnn_probe()
278 lp->client, ARCXCNN_FADECTRL); in arcxcnn_probe()
280 lp->pdata->led_config_1 = i2c_smbus_read_byte_data( in arcxcnn_probe()
281 lp->client, ARCXCNN_ILED_CONFIG); in arcxcnn_probe()
283 lp->pdata->led_config_1 |= ARCXCNN_ILED_DIM_INT; in arcxcnn_probe()
285 lp->pdata->dim_freq = i2c_smbus_read_byte_data( in arcxcnn_probe()
286 lp->client, ARCXCNN_DIMFREQ); in arcxcnn_probe()
288 lp->pdata->comp_config = i2c_smbus_read_byte_data( in arcxcnn_probe()
289 lp->client, ARCXCNN_COMP_CONFIG); in arcxcnn_probe()
291 lp->pdata->filter_config = i2c_smbus_read_byte_data( in arcxcnn_probe()
292 lp->client, ARCXCNN_FILT_CONFIG); in arcxcnn_probe()
294 lp->pdata->trim_config = i2c_smbus_read_byte_data( in arcxcnn_probe()
295 lp->client, ARCXCNN_IMAXTUNE); in arcxcnn_probe()
298 arcxcnn_parse_dt(lp); in arcxcnn_probe()
301 i2c_set_clientdata(cl, lp); in arcxcnn_probe()
304 if (lp->pdata->initial_brightness > MAX_BRIGHTNESS) in arcxcnn_probe()
305 lp->pdata->initial_brightness = MAX_BRIGHTNESS; in arcxcnn_probe()
308 ret = arcxcnn_set_brightness(lp, lp->pdata->initial_brightness); in arcxcnn_probe()
313 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_FADECTRL, in arcxcnn_probe()
314 lp->pdata->led_config_0); in arcxcnn_probe()
318 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_ILED_CONFIG, in arcxcnn_probe()
319 lp->pdata->led_config_1); in arcxcnn_probe()
323 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_DIMFREQ, in arcxcnn_probe()
324 lp->pdata->dim_freq); in arcxcnn_probe()
328 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_COMP_CONFIG, in arcxcnn_probe()
329 lp->pdata->comp_config); in arcxcnn_probe()
333 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_FILT_CONFIG, in arcxcnn_probe()
334 lp->pdata->filter_config); in arcxcnn_probe()
338 ret = i2c_smbus_write_byte_data(lp->client, ARCXCNN_IMAXTUNE, in arcxcnn_probe()
339 lp->pdata->trim_config); in arcxcnn_probe()
344 arcxcnn_update_field(lp, ARCXCNN_LEDEN, in arcxcnn_probe()
345 ARCXCNN_LEDEN_MASK, lp->pdata->leden); in arcxcnn_probe()
347 ret = arcxcnn_backlight_register(lp); in arcxcnn_probe()
351 backlight_update_status(lp->bl); in arcxcnn_probe()
356 dev_err(lp->dev, in arcxcnn_probe()
360 dev_err(lp->dev, in arcxcnn_probe()
367 struct arcxcnn *lp = i2c_get_clientdata(cl); in arcxcnn_remove() local
370 i2c_smbus_write_byte_data(lp->client, in arcxcnn_remove()
373 i2c_smbus_write_byte_data(lp->client, in arcxcnn_remove()
376 lp->bl->props.brightness = 0; in arcxcnn_remove()
378 backlight_update_status(lp->bl); in arcxcnn_remove()