thermal: thermal_core: allow binding with limits on bind_params

When registering a thermal zone device using platform information
via bind_params, the thermal framework will always perform the
cdev binding using the lowest and highest limits (THERMAL_NO_LIMIT).

This patch changes the data structures so that it is possible
to inform what are the desired limits for each trip point
inside a bind_param. The way the binding is performed is also
changed so that it uses the new data structure.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>

1 files changed, 15 insertions, 4 deletions

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 51648bfb248d..4962a6aaf295 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -202,14 +202,23 @@ static void print_bind_err_msg(struct thermal_zone_device *tz,
 }
 
 static void __bind(struct thermal_zone_device *tz, int mask,
-                        struct thermal_cooling_device *cdev)
+                        struct thermal_cooling_device *cdev,
+                        unsigned long *limits)
 {
         int i, ret;
 
         for (i = 0; i < tz->trips; i++) {
                 if (mask & (1 << i)) {
+                        unsigned long upper, lower;
+
+                        upper = THERMAL_NO_LIMIT;
+                        lower = THERMAL_NO_LIMIT;
+                        if (limits) {
+                                lower = limits[i * 2];
+                                upper = limits[i * 2 + 1];
+                        }
                         ret = thermal_zone_bind_cooling_device(tz, i, cdev,
-                                        THERMAL_NO_LIMIT, THERMAL_NO_LIMIT);
+                                                               upper, lower);
                         if (ret)
                                 print_bind_err_msg(tz, cdev, ret);
                 }
@@ -254,7 +263,8 @@ static void bind_cdev(struct thermal_cooling_device *cdev)
                         if (tzp->tbp[i].match(pos, cdev))
                                 continue;
                         tzp->tbp[i].cdev = cdev;
-                        __bind(pos, tzp->tbp[i].trip_mask, cdev);
+                        __bind(pos, tzp->tbp[i].trip_mask, cdev,
+                               tzp->tbp[i].binding_limits);
                 }
         }
 
@@ -292,7 +302,8 @@ static void bind_tz(struct thermal_zone_device *tz)
                         if (tzp->tbp[i].match(tz, pos))
                                 continue;
                         tzp->tbp[i].cdev = pos;
-                        __bind(tz, tzp->tbp[i].trip_mask, pos);
+                        __bind(tz, tzp->tbp[i].trip_mask, pos,
+                               tzp->tbp[i].binding_limits);
                 }
         }
 exit: