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h3-dth

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Radoslav 2023-04-15 14:47:48 +02:00 committed by Ricardo Pardini
parent 41260ac309
commit 55d16b3d26
1 changed files with 65 additions and 0 deletions
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65
patch/kernel/archive/sunxi-6.1/patches.armbian/arm-dts-sun8i-h3-fix-thermal-read.patch Normal file
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@ -0,0 +1,65 @@
diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c
--- a/drivers/thermal/sun8i_thermal.c
+++ b/drivers/thermal/sun8i_thermal.c
+++ sun8i_thermal.c.new 2023-04-15 13:35:22.362606946 +0200
@@ -81,7 +81,8 @@
};
struct ths_device {
- const struct ths_thermal_chip *chip;
+// const struct ths_thermal_chip *chip;
+ struct ths_thermal_chip *chip;
struct device *dev;
struct regmap *regmap;
struct reset_control *reset;
@@ -229,6 +230,32 @@
return 0;
}
+static int sun8i_h3only_ths_calibrate(struct ths_device *tmdev,
+ u16 *caldata, int callen)
+{
+ // 12.4.2023 radoslavv: meaningless code for H3 chip in sun8i_h3_ths_calibrate()
+ // 1) no need to iterate 1 sensor on h3 chip (however still another family chips needs this) => separate function for h3 chip only
+ // 2) register SUN8I_THS_TEMP_CALIB is rather to be read, than trying to "FIX" factory written value with regmap_update_bits
+ // 3) we need to read it to update .offset value => main reason for change
+ // 4) per each chip could be value slightly different, can't be predefined const in code
+
+ int val = 0;
+
+ dev_warn(tmdev->dev, "DEBUG: h3 caldata=0x%04x=%u, callen=%i\n", (*caldata), (*caldata), callen );
+
+ if (callen != 4)
+ return -EINVAL;
+
+ regmap_read(tmdev->regmap, SUN8I_THS_TEMP_CALIB, &val);
+ val &= 0xFFF; //only 12bits to use
+ caldata[0] = val;
+
+ tmdev->chip->scale = 10000/14.882; //according datasheet (= 672)
+ tmdev->chip->offset = val * tmdev->chip->scale / 10;
+
+ return 0;
+}
+
static int sun50i_h6_ths_calibrate(struct ths_device *tmdev,
u16 *caldata, int callen)
{
@@ -751,14 +778,15 @@
.calc_temp = sun8i_ths_calc_temp,
};
-static const struct ths_thermal_chip sun8i_h3_ths = {
+//static const struct ths_thermal_chip sun8i_h3_ths = {
+static struct ths_thermal_chip sun8i_h3_ths = {
.sensor_num = 1,
.scale = 1211,
.offset = 217000,
.has_mod_clk = true,
.has_bus_clk_reset = true,
.temp_data_base = SUN8I_THS_TEMP_DATA,
- .calibrate = sun8i_h3_ths_calibrate,
+ .calibrate = sun8i_h3only_ths_calibrate,
.init = sun8i_h3_thermal_init,
.irq_ack = sun8i_h3_irq_ack,
.calc_temp = sun8i_ths_calc_temp,