commit 916360b8627adc2e7124b9759480f8f4070b630a
author Cheng C Yang <cheng.c.yang@linux.intel.com> Tue May 07 18:47:16 2019 +0800
committer Cheng C Yang <cheng.c.yang@linux.intel.com> Thu May 09 00:58:59 2019 +0000
tree 1b65a52ee171ccd63782b1d7a25796b8dd39cc47
parent ae11cfc8df60667266269b240b5961bd22cf4fdc

Add PSU PWM sensor to support FSC

Add PSU PWM sensor to allow FSC control PSU fan pwm.

Tested:
Change property Target to 100 in dbus interface xyz.openbmc_project.Control.FanPwm
path /xyz/openbmc_project/control/fanpwm/Pwm_PSU1_Fan_1, the value in
/sys/class/hwmon/hwmonx/fan1_target also become 100, and value property in interface
/xyz/openbmc_project/sensors/fan_pwm/Pwm_PSU1_Fan_1 become 39.2157

Run ipmitool sensor list, bellow sensors will show like:
Pwm PSU1 Fan 1   | 39.200     | unspecified | ok    | na        | na        | na        | na        | na        | na
Pwm PSU2 Fan 1   | 0.000      | unspecified | ok    | na        | na        | na        | na        | na        | na

Signed-off-by: Cheng C Yang <cheng.c.yang@linux.intel.com>
Change-Id: I6a4d50912a190297dbcf4a4e5c511607f71cb0c0

src/FanMain.cpp

diff --git a/src/FanMain.cpp b/src/FanMain.cpp
index 866fe4f..962a115 100644
--- a/src/FanMain.cpp
+++ b/src/FanMain.cpp
@@ -314,9 +314,12 @@
         }
 
         // only add new elements
+        const std::string& sysPath = pwm.string();
+        const std::string& pwmName =
+            "Pwm_" + sysPath.substr(sysPath.find_last_of("pwm") + 1);
         pwmSensors.insert(std::pair<std::string, std::unique_ptr<PwmSensor>>(
-            pwm.string(),
-            std::make_unique<PwmSensor>(pwm.string(), objectServer, *path)));
+            sysPath, std::make_unique<PwmSensor>(pwmName, sysPath, objectServer,
+                                                 *path)));
     }
 }