[PATCH 12/14] thermal: ti-soc-thermal: add ->adc_to_mcelsius method

From: Bartlomiej Zolnierkiewicz
Date: Mon May 14 2018 - 07:44:40 EST

* Add ->adc_to_mcelsius method to struct ti_bandgap_data and
use it if present in ti_bandgap_adc_to_mcelsius().

* Implement ->adc_to_mcelsius for DRA752 and remove no longer
needed dra752_adc_to_temp[].

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
---
drivers/thermal/ti-soc-thermal/dra752-bandgap.h | 3 +
.../thermal/ti-soc-thermal/dra752-thermal-data.c | 157 ++++-----------------
.../thermal/ti-soc-thermal/omap5-thermal-data.c | 5 +-
drivers/thermal/ti-soc-thermal/ti-bandgap.c | 3 +
drivers/thermal/ti-soc-thermal/ti-bandgap.h | 2 +
5 files changed, 38 insertions(+), 132 deletions(-)

diff --git a/drivers/thermal/ti-soc-thermal/dra752-bandgap.h b/drivers/thermal/ti-soc-thermal/dra752-bandgap.h
index c39af38..8eb155a 100644
--- a/drivers/thermal/ti-soc-thermal/dra752-bandgap.h
+++ b/drivers/thermal/ti-soc-thermal/dra752-bandgap.h
@@ -88,4 +88,7 @@
extern struct temp_sensor_registers omap5430_gpu_temp_sensor_registers;
extern struct temp_sensor_registers omap5430_core_temp_sensor_registers;

+extern int
+omap5430_adc_to_temp[OMAP5430_ADC_END_VALUE - OMAP5430_ADC_START_VALUE + 1];
+
#endif /* __DRA752_BANDGAP_H */
diff --git a/drivers/thermal/ti-soc-thermal/dra752-thermal-data.c b/drivers/thermal/ti-soc-thermal/dra752-thermal-data.c
index dcc0b10..87b4d97 100644
--- a/drivers/thermal/ti-soc-thermal/dra752-thermal-data.c
+++ b/drivers/thermal/ti-soc-thermal/dra752-thermal-data.c
@@ -84,135 +84,31 @@
.max_freq = OMAP5430_MAX_FREQ,
};

-/*
- * DRA752 : Temperature values in milli degree celsius
- * ADC code values from 540 to 945
- */
-static int
-dra752_adc_to_temp[OMAP5430_ADC_END_VALUE - OMAP5430_ADC_START_VALUE + 1] = {
- /* Index 540 - 549 */
- -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
- -37800,
- /* Index 550 - 559 */
- -37400, -37000, -36600, -36200, -35800, -35300, -34700, -34200, -33800,
- -33400,
- /* Index 560 - 569 */
- -33000, -32600, -32200, -31800, -31400, -31000, -30600, -30200, -29800,
- -29400,
- /* Index 570 - 579 */
- -29000, -28600, -28200, -27700, -27100, -26600, -26200, -25800, -25400,
- -25000,
- /* Index 580 - 589 */
- -24600, -24200, -23800, -23400, -23000, -22600, -22200, -21800, -21400,
- -21000,
- /* Index 590 - 599 */
- -20500, -19900, -19400, -19000, -18600, -18200, -17800, -17400, -17000,
- -16600,
- /* Index 600 - 609 */
- -16200, -15800, -15400, -15000, -14600, -14200, -13800, -13400, -13000,
- -12500,
- /* Index 610 - 619 */
- -11900, -11400, -11000, -10600, -10200, -9800, -9400, -9000, -8600,
- -8200,
- /* Index 620 - 629 */
- -7800, -7400, -7000, -6600, -6200, -5800, -5400, -5000, -4500,
- -3900,
- /* Index 630 - 639 */
- -3400, -3000, -2600, -2200, -1800, -1400, -1000, -600, -200,
- 200,
- /* Index 640 - 649 */
- 600, 1000, 1400, 1800, 2200, 2600, 3000, 3400, 3900,
- 4500,
- /* Index 650 - 659 */
- 5000, 5400, 5800, 6200, 6600, 7000, 7400, 7800, 8200,
- 8600,
- /* Index 660 - 669 */
- 9000, 9400, 9800, 10200, 10600, 11000, 11400, 11800, 12200,
- 12700,
- /* Index 670 - 679 */
- 13300, 13800, 14200, 14600, 15000, 15400, 15800, 16200, 16600,
- 17000,
- /* Index 680 - 689 */
- 17400, 17800, 18200, 18600, 19000, 19400, 19800, 20200, 20600,
- 21000,
- /* Index 690 - 699 */
- 21400, 21900, 22500, 23000, 23400, 23800, 24200, 24600, 25000,
- 25400,
- /* Index 700 - 709 */
- 25800, 26200, 26600, 27000, 27400, 27800, 28200, 28600, 29000,
- 29400,
- /* Index 710 - 719 */
- 29800, 30200, 30600, 31000, 31400, 31900, 32500, 33000, 33400,
- 33800,
- /* Index 720 - 729 */
- 34200, 34600, 35000, 35400, 35800, 36200, 36600, 37000, 37400,
- 37800,
- /* Index 730 - 739 */
- 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41000, 41400,
- 41800,
- /* Index 740 - 749 */
- 42200, 42600, 43100, 43700, 44200, 44600, 45000, 45400, 45800,
- 46200,
- /* Index 750 - 759 */
- 46600, 47000, 47400, 47800, 48200, 48600, 49000, 49400, 49800,
- 50200,
- /* Index 760 - 769 */
- 50600, 51000, 51400, 51800, 52200, 52600, 53000, 53400, 53800,
- 54200,
- /* Index 770 - 779 */
- 54600, 55000, 55400, 55900, 56500, 57000, 57400, 57800, 58200,
- 58600,
- /* Index 780 - 789 */
- 59000, 59400, 59800, 60200, 60600, 61000, 61400, 61800, 62200,
- 62600,
- /* Index 790 - 799 */
- 63000, 63400, 63800, 64200, 64600, 65000, 65400, 65800, 66200,
- 66600,
- /* Index 800 - 809 */
- 67000, 67400, 67800, 68200, 68600, 69000, 69400, 69800, 70200,
- 70600,
- /* Index 810 - 819 */
- 71000, 71500, 72100, 72600, 73000, 73400, 73800, 74200, 74600,
- 75000,
- /* Index 820 - 829 */
- 75400, 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600,
- 79000,
- /* Index 830 - 839 */
- 79400, 79800, 80200, 80600, 81000, 81400, 81800, 82200, 82600,
- 83000,
- /* Index 840 - 849 */
- 83400, 83800, 84200, 84600, 85000, 85400, 85800, 86200, 86600,
- 87000,
- /* Index 850 - 859 */
- 87400, 87800, 88200, 88600, 89000, 89400, 89800, 90200, 90600,
- 91000,
- /* Index 860 - 869 */
- 91400, 91800, 92200, 92600, 93000, 93400, 93800, 94200, 94600,
- 95000,
- /* Index 870 - 879 */
- 95400, 95800, 96200, 96600, 97000, 97500, 98100, 98600, 99000,
- 99400,
- /* Index 880 - 889 */
- 99800, 100200, 100600, 101000, 101400, 101800, 102200, 102600, 103000,
- 103400,
- /* Index 890 - 899 */
- 103800, 104200, 104600, 105000, 105400, 105800, 106200, 106600, 107000,
- 107400,
- /* Index 900 - 909 */
- 107800, 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000,
- 111400,
- /* Index 910 - 919 */
- 111800, 112200, 112600, 113000, 113400, 113800, 114200, 114600, 115000,
- 115400,
- /* Index 920 - 929 */
- 115800, 116200, 116600, 117000, 117400, 117800, 118200, 118600, 119000,
- 119400,
- /* Index 930 - 939 */
- 119800, 120200, 120600, 121000, 121400, 121800, 122200, 122600, 123000,
- 123400,
- /* Index 940 - 945 */
- 123800, 124200, 124600, 124900, 125000, 125000,
-};
+static int dra752_adc_to_mcelsius(struct ti_bandgap *bgp, int adc_val, int *t)
+{
+ const struct ti_bandgap_data *conf = bgp->conf;
+
+ /* look up for temperature in the table and return the temperature */
+ if (adc_val < conf->adc_start_val || adc_val > conf->adc_end_val)
+ return -ERANGE;
+
+ switch (adc_val) {
+ case 588:
+ *t = -21800; /* -21600 */
+ break;
+ case 689:
+ *t = 21000; /* 21100 */
+ break;
+ case 937:
+ *t = 122200; /* 122400 */
+ break;
+ default:
+ *t = bgp->conf->conv_table[adc_val - conf->adc_start_val];
+ break;
+ }
+
+ return 0;
+}

/* DRA752 data */
const struct ti_bandgap_data dra752_data = {
@@ -223,9 +119,10 @@
TI_BANDGAP_FEATURE_ERRATA_814,
.fclock_name = "l3instr_ts_gclk_div",
.div_ck_name = "l3instr_ts_gclk_div",
- .conv_table = dra752_adc_to_temp,
+ .conv_table = omap5430_adc_to_temp,
.adc_start_val = OMAP5430_ADC_START_VALUE,
.adc_end_val = OMAP5430_ADC_END_VALUE,
+ .adc_to_mcelsius = dra752_adc_to_mcelsius,
.sensors = {
{
.registers = &omap5430_mpu_temp_sensor_registers,
diff --git a/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c
index fce6e30..63e95df 100644
--- a/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c
+++ b/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c
@@ -124,13 +124,13 @@ struct temp_sensor_registers
.min_freq = OMAP5430_MIN_FREQ,
.max_freq = OMAP5430_MAX_FREQ,
};
+#endif /* CONFIG_OMAP5_THERMAL */

/*
* OMAP54xx ES2.0 : Temperature values in milli degree celsius
* ADC code values from 540 to 945
*/
-static int
-omap5430_adc_to_temp[
+int omap5430_adc_to_temp[
OMAP5430_ADC_END_VALUE - OMAP5430_ADC_START_VALUE + 1] = {
/* Index 540 - 549 */
-40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
@@ -230,6 +230,7 @@ struct temp_sensor_registers
123800, 124200, 124600, 124900, 125000, 125000,
};

+#ifdef CONFIG_OMAP5_THERMAL
/* OMAP54xx ES2.0 data */
const struct ti_bandgap_data omap5430_data = {
.features = TI_BANDGAP_FEATURE_TSHUT_CONFIG |
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 4d45160..e483792 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -309,6 +309,9 @@ int ti_bandgap_adc_to_mcelsius(struct ti_bandgap *bgp, int adc_val, int *t)
{
const struct ti_bandgap_data *conf = bgp->conf;

+ if (conf->adc_to_mcelsius)
+ return conf->adc_to_mcelsius(bgp, adc_val, t);
+
/* look up for temperature in the table and return the temperature */
if (adc_val < conf->adc_start_val || adc_val > conf->adc_end_val)
return -ERANGE;
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
index 4d5b54a..76c3361 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
@@ -330,6 +330,8 @@ struct ti_bandgap_data {
char *div_ck_name;
int sensor_count;

+ int (*adc_to_mcelsius)(struct ti_bandgap *bgp, int adc_val, int *t);
+
/* this needs to be at the end */
struct ti_temp_sensor sensors[];
};
--
1.9.1