Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal

Pull thermal soc updates from Eduardo Valentin:

 - thermal core has a new devm_* API for registering cooling devices. I
   took the entire series, that is why you see changes on drivers/hwmon
   in this pull (Guenter Roeck)

 - rockchip thermal driver gains support to PX30 SoC (Elaine Zhang)

 - the generic-adc thermal driver now considers the lookup table DT
   property as optional (Jean-Francois Dagenais)

 - Refactoring of tsens thermal driver (Amit Kucheria)

 - Cleanups on cpu cooling driver (Daniel Lezcano)

 - broadcom thermal driver dropped support to ACPI (Srinath Mannam)

 - tegra thermal driver gains support to OC hw throttle and GPU throtle
   (Wei Ni)

 - Fixes in several thermal drivers.

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (59 commits)
  hwmon: (pwm-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (npcm750-pwm-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (mlxreg-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (gpio-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (aspeed-pwm-tacho) Use devm_thermal_of_cooling_device_register
  thermal: rcar_gen3_thermal: Fix to show correct trip points number
  thermal: rcar_thermal: update calculation formula for R-Car Gen3 SoCs
  thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
  thermal: rockchip: Support the PX30 SoC in thermal driver
  dt-bindings: rockchip-thermal: Support the PX30 SoC compatible
  thermal: rockchip: fix up the tsadc pinctrl setting error
  thermal: broadcom: Remove ACPI support
  thermal: Fix build error of missing devm_ioremap_resource on UM
  thermal/drivers/cpu_cooling: Remove pointless field
  thermal/drivers/cpu_cooling: Add Software Package Data Exchange (SPDX)
  thermal/drivers/cpu_cooling: Fixup the header and copyright
  thermal/drivers/cpu_cooling: Remove pointless test in power2state()
  thermal: rcar_gen3_thermal: disable interrupt in .remove
  thermal: rcar_gen3_thermal: fix interrupt type
  thermal: Introduce devm_thermal_of_cooling_device_register
  ...

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/thermal/thermal-generic-adc.c b/drivers/thermal/thermal-generic-adc.c
index e22fc60ad36d..deb244f12de4 100644
--- a/drivers/thermal/thermal-generic-adc.c
+++ b/drivers/thermal/thermal-generic-adc.c
@@ -29,6 +29,9 @@ static int gadc_thermal_adc_to_temp(struct gadc_thermal_info *gti, int val)
 	int temp, temp_hi, temp_lo, adc_hi, adc_lo;
 	int i;
 
+	if (!gti->lookup_table)
+		return val;
+
 	for (i = 0; i < gti->nlookup_table; i++) {
 		if (val >= gti->lookup_table[2 * i + 1])
 			break;
@@ -81,9 +84,9 @@ static int gadc_thermal_read_linear_lookup_table(struct device *dev,
 
 	ntable = of_property_count_elems_of_size(np, "temperature-lookup-table",
 						 sizeof(u32));
-	if (ntable < 0) {
-		dev_err(dev, "Lookup table is not provided\n");
-		return ntable;
+	if (ntable <= 0) {
+		dev_notice(dev, "no lookup table, assuming DAC channel returns milliCelcius\n");
+		return 0;
 	}
 
 	if (ntable % 2) {