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Commit bd4cb1fd authored by Bingzhe Cai's avatar Bingzhe Cai
Browse files

input: sensors: calibrate the cm36283 als sensor for 8x10 MTP 



The cm36283 als sensor reported inaccurate illumination value
due to not calibrated on 8x10 MTP devices.

CRs-Fixed: 579407
Change-Id: Ie7239f11944579e3d107b3fe739844ceb764998b
Signed-off-by: default avatarOliver Wang <mengmeng@codeaurora.org>
Signed-off-by: default avatarBingzhe Cai <bingzhec@codeaurora.org>
parent 442d7807

drivers/input/misc/cm36283.c

+11 −11
Original line number Diff line number Diff line
@@ -1539,7 +1539,7 @@ static int cm36283_probe(struct i2c_client *client, 
		__func__, lpi->ls_cmd);

	

	if (pdata->ls_cmd == 0) {

		lpi->ls_cmd  = CM36283_ALS_IT_160ms | CM36283_ALS_GAIN_2;

		lpi->ls_cmd  = CM36283_ALS_IT_80ms | CM36283_ALS_GAIN_2;

	}



	lp_info = lpi;
@@ -1556,17 +1556,17 @@ static int cm36283_probe(struct i2c_client *client, 
	mutex_init(&ps_get_adc_mutex);





  //SET LUX STEP FACTOR HERE

  // if adc raw value one step = 5/100 = 1/20 = 0.05 lux

  // the following will set the factor 0.05 = 1/20

  // and lpi->golden_adc = 1;  

  // set als_kadc = (ALS_CALIBRATED <<16) | 20;



  als_kadc = (ALS_CALIBRATED <<16) | 20;

  lpi->golden_adc = 1;

	/*

	 * SET LUX STEP FACTOR HERE

	 * if adc raw value one step = 5/100 = 1/20 = 0.05 lux

	 * the following will set the factor 0.05 = 1/20

	 * and lpi->golden_adc = 1;

	 * set als_kadc = (ALS_CALIBRATED << 16) | 20;

	 */



  //ls calibrate always set to 1 

  lpi->ls_calibrate = 1;

	als_kadc = (ALS_CALIBRATED << 16) | 10;

	lpi->golden_adc = 100;

	lpi->ls_calibrate = 0;



	lightsensor_set_kvalue(lpi);

	ret = lightsensor_update_table(lpi);