212 static int palmas_gpadc_enable(struct palmas_gpadc *adc, int adc_chan,  in palmas_gpadc_enable()  argument
247 		val = (adc_chan | PALMAS_GPADC_SW_SELECT_SW_CONV_EN);  in palmas_gpadc_enable()
272 static int palmas_gpadc_read_prepare(struct palmas_gpadc *adc, int adc_chan)  in palmas_gpadc_read_prepare()  argument
276 	ret = palmas_gpadc_enable(adc, adc_chan, true);  in palmas_gpadc_read_prepare()
283 static void palmas_gpadc_read_done(struct palmas_gpadc *adc, int adc_chan)  in palmas_gpadc_read_done()  argument
286 	palmas_gpadc_enable(adc, adc_chan, false);  in palmas_gpadc_read_done()
289 static int palmas_gpadc_calibrate(struct palmas_gpadc *adc, int adc_chan)  in palmas_gpadc_calibrate()  argument
296 	int x1 =  adc->adc_info[adc_chan].x1;  in palmas_gpadc_calibrate()
297 	int x2 =  adc->adc_info[adc_chan].x2;  in palmas_gpadc_calibrate()
298 	int v1 = adc->adc_info[adc_chan].v1;  in palmas_gpadc_calibrate()
299 	int v2 = adc->adc_info[adc_chan].v2;  in palmas_gpadc_calibrate()
302 				adc->adc_info[adc_chan].trim1_reg, &d1);  in palmas_gpadc_calibrate()
309 				adc->adc_info[adc_chan].trim2_reg, &d2);  in palmas_gpadc_calibrate()
321 	adc->adc_info[adc_chan].gain_error = k;  in palmas_gpadc_calibrate()
322 	adc->adc_info[adc_chan].gain = gain;  in palmas_gpadc_calibrate()
324 	adc->adc_info[adc_chan].offset = (d1 * 1000) - ((k - 1000) * x1);  in palmas_gpadc_calibrate()
330 static int palmas_gpadc_start_conversion(struct palmas_gpadc *adc, int adc_chan)  in palmas_gpadc_start_conversion()  argument
365 						int adc_chan, int val)  in palmas_gpadc_get_calibrated_code()  argument
367 	if (!adc->adc_info[adc_chan].is_uncalibrated)  in palmas_gpadc_get_calibrated_code()
368 		val  = (val*1000 - adc->adc_info[adc_chan].offset) /  in palmas_gpadc_get_calibrated_code()
369 					adc->adc_info[adc_chan].gain_error;  in palmas_gpadc_get_calibrated_code()
376 	val = (val * adc->adc_info[adc_chan].gain) / 1000;  in palmas_gpadc_get_calibrated_code()
385 	int adc_chan = chan->channel;  in palmas_gpadc_read_raw()  local
388 	if (adc_chan > PALMAS_ADC_CH_MAX)  in palmas_gpadc_read_raw()
396 		ret = palmas_gpadc_read_prepare(adc, adc_chan);  in palmas_gpadc_read_raw()
400 		ret = palmas_gpadc_start_conversion(adc, adc_chan);  in palmas_gpadc_read_raw()
409 							adc, adc_chan, ret);  in palmas_gpadc_read_raw()
421 	palmas_gpadc_read_done(adc, adc_chan);  in palmas_gpadc_read_raw()