Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

Pull thermal management updates from Zhang Rui:

 - Add Daniel Lezcano as the reviewer of thermal framework and SoC
   driver changes (Daniel Lezcano).

 - Fix a bug in intel_dts_soc_thermal driver, which does not translate
   IO-APIC GSI (Global System Interrupt) into Linux irq number (Hans de
   Goede).

 - For device tree bindings, allow cooling devices sharing same trip
   point with same contribution value to share cooling map (Viresh
   Kumar).

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  dt-bindings: thermal: Allow multiple devices to share cooling map
  MAINTAINERS: Add Daniel Lezcano as designated reviewer for thermal
  Thermal: Intel SoC DTS: Translate IO-APIC GSI number to linux irq number

diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt
index cc553f0952c5a5e6b68da0121f9da34b19b6114a..eb7ee91556a5cf25e983f23625b58345706ba8eb 100644 (file)
--- a/Documentation/devicetree/bindings/thermal/thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/thermal.txt
@@ -97,8 +97,8 @@ get assigned to trip points of the zone. The cooling devices are expected
 to be loaded in the target system.
 
 Required properties:
-- cooling-device:      A phandle of a cooling device with its specifier,
-  Type: phandle +      referring to which cooling device is used in this
+- cooling-device:      A list of phandles of cooling devices with their specifiers,
+  Type: phandle +      referring to which cooling devices are used in this
     cooling specifier  binding. In the cooling specifier, the first cell
                        is the minimum cooling state and the second cell
                        is the maximum cooling state used in this map.
@@ -276,12 +276,7 @@ thermal-zones {
                        };
                        map1 {
                                trip = <&cpu_alert1>;
-                               cooling-device = <&fan0 5 THERMAL_NO_LIMIT>;
-                       };
-                       map2 {
-                               trip = <&cpu_alert1>;
-                               cooling-device =
-                                   <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+                               cooling-device = <&fan0 5 THERMAL_NO_LIMIT>, <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
                        };
                };
        };

diff --git a/MAINTAINERS b/MAINTAINERS
index eb27d7ebfa68a5f43a67659690d535116fa8eb63..b2fcd1c6bdcb0cc0e122c7f0afa054f7eb5e80f7 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14410,6 +14410,7 @@ F:      drivers/media/radio/radio-raremono.c
 THERMAL
 M:     Zhang Rui <rui.zhang@intel.com>
 M:     Eduardo Valentin <edubezval@gmail.com>
+R:     Daniel Lezcano <daniel.lezcano@linaro.org>
 L:     linux-pm@vger.kernel.org
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal.git

diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 82979880f9853e2d2455d1e55adc2c5b9f4d8495..0e69edc77d184d436f2220caf90895438e36fc70 100644 (file)
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -360,7 +360,7 @@ config INTEL_SOC_DTS_IOSF_CORE
 
 config INTEL_SOC_DTS_THERMAL
        tristate "Intel SoCs DTS thermal driver"
-       depends on X86 && PCI
+       depends on X86 && PCI && ACPI
        select INTEL_SOC_DTS_IOSF_CORE
        select THERMAL_WRITABLE_TRIPS
        help

diff --git a/drivers/thermal/intel_soc_dts_thermal.c b/drivers/thermal/intel_soc_dts_thermal.c
index c27868b2c6afc5f438754f370961fee1c3eaac8e..1e47511a6bd5baa0e0db1846d858b8fd2757fb19 100644 (file)
--- a/drivers/thermal/intel_soc_dts_thermal.c
+++ b/drivers/thermal/intel_soc_dts_thermal.c
@@ -15,6 +15,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/acpi.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <asm/cpu_device_id.h>
@@ -31,6 +32,7 @@ MODULE_PARM_DESC(crit_offset,
 /* IRQ 86 is a fixed APIC interrupt for BYT DTS Aux threshold notifications */
 #define BYT_SOC_DTS_APIC_IRQ   86
 
+static int soc_dts_thres_gsi;
 static int soc_dts_thres_irq;
 static struct intel_soc_dts_sensors *soc_dts;
 
@@ -65,7 +67,21 @@ static int __init intel_soc_thermal_init(void)
                return err;
        }
 
-       soc_dts_thres_irq = (int)match_cpu->driver_data;
+       soc_dts_thres_gsi = (int)match_cpu->driver_data;
+       if (soc_dts_thres_gsi) {
+               /*
+                * Note the flags here MUST match the firmware defaults, rather
+                * then the request_irq flags, otherwise we get an EBUSY error.
+                */
+               soc_dts_thres_irq = acpi_register_gsi(NULL, soc_dts_thres_gsi,
+                                                     ACPI_LEVEL_SENSITIVE,
+                                                     ACPI_ACTIVE_LOW);
+               if (soc_dts_thres_irq < 0) {
+                       pr_warn("intel_soc_dts: Could not get IRQ for GSI %d, err %d\n",
+                               soc_dts_thres_gsi, soc_dts_thres_irq);
+                       soc_dts_thres_irq = 0;
+               }
+       }
 
        if (soc_dts_thres_irq) {
                err = request_threaded_irq(soc_dts_thres_irq, NULL,
@@ -90,8 +106,10 @@ static int __init intel_soc_thermal_init(void)
        return 0;
 
 error_trips:
-       if (soc_dts_thres_irq)
+       if (soc_dts_thres_irq) {
                free_irq(soc_dts_thres_irq, soc_dts);
+               acpi_unregister_gsi(soc_dts_thres_gsi);
+       }
        intel_soc_dts_iosf_exit(soc_dts);
 
        return err;
@@ -99,8 +117,10 @@ error_trips:
 
 static void __exit intel_soc_thermal_exit(void)
 {
-       if (soc_dts_thres_irq)
+       if (soc_dts_thres_irq) {
                free_irq(soc_dts_thres_irq, soc_dts);
+               acpi_unregister_gsi(soc_dts_thres_gsi);
+       }
        intel_soc_dts_iosf_exit(soc_dts);
 }