ACPI: thinkpad-acpi: cleanup thermal subdriver for sysfs conversion

Clean-up the thermal subdriver for sysfs conversion.  Make thermal_get_*
reentrancy-safe while at it, and add the missing thermal_read_mode variable
to the header file.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index fb0abb02a016..6432b28339af 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -427,12 +427,20 @@ enum thermal_access_mode {
         TPACPI_THERMAL_TPEC_16,         /* Use ACPI EC regs, 16 sensors */
 };
 
+enum { /* TPACPI_THERMAL_TPEC_* */
+        TP_EC_THERMAL_TMP0 = 0x78,      /* ACPI EC regs TMP 0..7 */
+        TP_EC_THERMAL_TMP8 = 0xC0,      /* ACPI EC regs TMP 8..15 */
+};
+
 #define TPACPI_MAX_THERMAL_SENSORS 16   /* Max thermal sensors supported */
 struct ibm_thermal_sensors_struct {
         s32 temp[TPACPI_MAX_THERMAL_SENSORS];
 };
 
+static enum thermal_access_mode thermal_read_mode;
+
 static int thermal_init(struct ibm_init_struct *iibm);
+static int thermal_get_sensor(int idx, s32 *value);
 static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s);
 static int thermal_read(char *p);