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pm8xxx-adc: add the functions to set tuning parameters

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We need to tune the board specific adcmap parameters
So need functions to set specific parameters.

void pm8xxx_set_adcmap_btm_threshold(void *pts, int size)
void pm8xxx_set_adcmap_pa_therm(void *pts, int size)
void pm8xxx_set_adcmap_ntcg_104ef_104fb(void *pts, int size)

Change-Id: Ie78c11f5fb998ecc456defa3c8e3e7a3e0b9b45f
This commit is contained in:
Devin Kim 2012-08-10 20:31:05 -07:00 committed by Iliyan Malchev
parent 4a52ad6f2b
commit 2b64f6b785
2 changed files with 75 additions and 13 deletions
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60
drivers/hwmon/pm8xxx-adc-scale.c
View file

@ -25,7 +25,7 @@
and provided to the battery driver in the units desired for
their framework which is 0.1DegC. True resolution of 0.1DegC
will result in the below table size to increase by 10 times */
static const struct pm8xxx_adc_map_pt adcmap_btm_threshold[] = {
static struct pm8xxx_adc_map_pt def_adcmap_btm_threshold[] = {
{-300, 1642},
{-200, 1544},
{-100, 1414},
@ -111,7 +111,7 @@ static const struct pm8xxx_adc_map_pt adcmap_btm_threshold[] = {
{790, 203}
};
static const struct pm8xxx_adc_map_pt adcmap_pa_therm[] = {
static struct pm8xxx_adc_map_pt def_adcmap_pa_therm[] = {
{1731, -30},
{1726, -29},
{1721, -28},
@ -270,7 +270,7 @@ static const struct pm8xxx_adc_map_pt adcmap_pa_therm[] = {
{49, 125}
};
static const struct pm8xxx_adc_map_pt adcmap_ntcg_104ef_104fb[] = {
static struct pm8xxx_adc_map_pt def_adcmap_ntcg_104ef_104fb[] = {
{696483, -40960},
{649148, -39936},
{605368, -38912},
@ -439,6 +439,40 @@ static const struct pm8xxx_adc_map_pt adcmap_ntcg_104ef_104fb[] = {
{419, 128000}
};
static struct pm8xxx_adc_map adcmap_btm_threshold = {
.pt = def_adcmap_btm_threshold,
.size = ARRAY_SIZE(def_adcmap_btm_threshold),
};
static struct pm8xxx_adc_map adcmap_pa_therm = {
.pt = def_adcmap_pa_therm,
.size = ARRAY_SIZE(def_adcmap_pa_therm),
};
static struct pm8xxx_adc_map adcmap_ntcg_104ef_104fb = {
.pt = def_adcmap_ntcg_104ef_104fb,
.size = ARRAY_SIZE(def_adcmap_ntcg_104ef_104fb),
};
void pm8xxx_set_adcmap_btm_threshold(void *pts, int size)
{
adcmap_btm_threshold.pt = pts;
adcmap_btm_threshold.size = size;
}
EXPORT_SYMBOL(pm8xxx_set_adcmap_btm_threshold);
void pm8xxx_set_adcmap_pa_therm(void *pts, int size)
{
adcmap_pa_therm.pt = pts;
adcmap_pa_therm.size = size;
}
EXPORT_SYMBOL(pm8xxx_set_adcmap_pa_therm);
void pm8xxx_set_adcmap_ntcg_104ef_104fb(void *pts, int size)
{
adcmap_ntcg_104ef_104fb.pt = pts;
adcmap_ntcg_104ef_104fb.size = size;
}
EXPORT_SYMBOL(pm8xxx_set_adcmap_ntcg_104ef_104fb);
static int32_t pm8xxx_adc_map_linear(const struct pm8xxx_adc_map_pt *pts,
uint32_t tablesize, int32_t input, int64_t *output)
{
@ -622,8 +656,8 @@ int32_t pm8xxx_adc_scale_batt_therm(int32_t adc_code,
adc_properties, chan_properties);
return pm8xxx_adc_map_batt_therm(
adcmap_btm_threshold,
ARRAY_SIZE(adcmap_btm_threshold),
adcmap_btm_threshold.pt,
adcmap_btm_threshold.size,
bat_voltage,
&adc_chan_result->physical);
}
@ -640,8 +674,8 @@ int32_t pm8xxx_adc_scale_pa_therm(int32_t adc_code,
adc_properties, chan_properties);
return pm8xxx_adc_map_linear(
adcmap_pa_therm,
ARRAY_SIZE(adcmap_pa_therm),
adcmap_pa_therm.pt,
adcmap_pa_therm.size,
pa_voltage,
&adc_chan_result->physical);
}
@ -725,8 +759,8 @@ int32_t pm8xxx_adc_tdkntcg_therm(int32_t adc_code,
xo_thm = pm8xxx_adc_scale_ratiometric_calib(adc_code,
adc_properties, chan_properties);
xo_thm <<= 4;
pm8xxx_adc_map_linear(adcmap_ntcg_104ef_104fb,
ARRAY_SIZE(adcmap_ntcg_104ef_104fb),
pm8xxx_adc_map_linear(adcmap_ntcg_104ef_104fb.pt,
adcmap_ntcg_104ef_104fb.size,
xo_thm, &adc_chan_result->physical);
return 0;
@ -740,8 +774,8 @@ int32_t pm8xxx_adc_batt_scaler(struct pm8xxx_adc_arb_btm_param *btm_param,
int rc;
rc = pm8xxx_adc_map_linear(
adcmap_btm_threshold,
ARRAY_SIZE(adcmap_btm_threshold),
adcmap_btm_threshold.pt,
adcmap_btm_threshold.size,
(btm_param->low_thr_temp),
&btm_param->low_thr_voltage);
if (rc)
@ -754,8 +788,8 @@ int32_t pm8xxx_adc_batt_scaler(struct pm8xxx_adc_arb_btm_param *btm_param,
chan_properties->adc_graph[ADC_CALIB_RATIOMETRIC].adc_gnd;
rc = pm8xxx_adc_map_linear(
adcmap_btm_threshold,
ARRAY_SIZE(adcmap_btm_threshold),
adcmap_btm_threshold.pt,
adcmap_btm_threshold.size,
(btm_param->high_thr_temp),
&btm_param->high_thr_voltage);
if (rc)

28
include/linux/mfd/pm8xxx/pm8xxx-adc.h
View file

@ -247,6 +247,16 @@ struct pm8xxx_adc_map_pt {
int32_t y;
};
/**
* struct pm8xxx_adc_map - container of pm8xxx_adc_map_pt
* @pt: pointer of pm8xxx_adc_map_pt
* @size: size of pm8xxx_adc_map_pt
*/
struct pm8xxx_adc_map {
struct pm8xxx_adc_map_pt *pt;
int size;
};
/**
* struct pm8xxx_adc_scaling_ratio - Represent scaling ratio for adc input
* @num: Numerator scaling parameter
@ -584,6 +594,21 @@ uint32_t pm8xxx_adc_btm_end(void);
* events are triggered.
*/
uint32_t pm8xxx_adc_btm_configure(struct pm8xxx_adc_arb_btm_param *);
/**
* pm8xxx_set_adcmap_btm_threshold()
*/
void pm8xxx_set_adcmap_btm_threshold(void *pts, int size);
/**
* pm8xxx_set_adcmap_pa_therm()
*/
void pm8xxx_set_adcmap_pa_therm(void *pts, int size);
/**
* pm8xxx_st_adcmap_ntcg_104ef_104fb()
*/
void pm8xxx_set_adcmap_ntcg_104ef_104fb(void *pts, int size);
#else
static inline uint32_t pm8xxx_adc_read(uint32_t channel,
struct pm8xxx_adc_chan_result *result)
@ -599,6 +624,9 @@ static inline uint32_t pm8xxx_adc_btm_end(void)
static inline uint32_t pm8xxx_adc_btm_configure(
struct pm8xxx_adc_arb_btm_param *param)
{ return -ENXIO; }
static inline void pm8xxx_set_adcmap_btm_threshold(void) { }
static inline void pm8xxx_set_adcmap_pa_therm(void) { }
static inline void pm8xxx_set_adcmap_ntcg_104ef_104fb(void) { }
#endif
#endif /* PM8XXX_ADC_H */