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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2020-11-15 22:06:58 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2020-11-16 12:30:53 +0300
commitcb68a8580e2086fad38597af4c60d39de8df0cde (patch)
tree9d3b654c6a48da4e5827fede7fa9cc9050dd427a /drivers/thermal
parente78acf7efebff9184ad4add02b62a1f486a8cde8 (diff)
downloadlinux-cb68a8580e2086fad38597af4c60d39de8df0cde.tar.xz
thermal: amlogic: Add hwmon support
Many monitoring tools read the CPU temperature using the hwmon interface. Expose the thermal sensors on Amlogic boards as hwmon devices. Without this lm_sensors' "sensors" tool does not find any temperature sensors. Now it prints: cpu_thermal-virtual-0 Adapter: Virtual device temp1: +44.7 C (crit = +110.0 C) ddr_thermal-virtual-0 Adapter: Virtual device temp1: +45.9 C (crit = +110.0 C) Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20201115190658.631578-1-martin.blumenstingl@googlemail.com
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/amlogic_thermal.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/thermal/amlogic_thermal.c b/drivers/thermal/amlogic_thermal.c
index ccb1fe18e993..dffe3ba8c7c4 100644
--- a/drivers/thermal/amlogic_thermal.c
+++ b/drivers/thermal/amlogic_thermal.c
@@ -29,6 +29,7 @@
#include <linux/thermal.h>
#include "thermal_core.h"
+#include "thermal_hwmon.h"
#define TSENSOR_CFG_REG1 0x4
#define TSENSOR_CFG_REG1_RSET_VBG BIT(12)
@@ -287,6 +288,9 @@ static int amlogic_thermal_probe(struct platform_device *pdev)
return ret;
}
+ if (devm_thermal_add_hwmon_sysfs(pdata->tzd))
+ dev_warn(&pdev->dev, "Failed to add hwmon sysfs attributes\n");
+
ret = amlogic_thermal_initialize(pdata);
if (ret)
return ret;