Thermal: Add ST-Ericsson DB8500 thermal properties and platform data.

This patch adds device tree properties for ST-Ericsson DB8500 thermal driver,
also adds the platform data to support the old fashion.

Signed-off-by: hongbo.zhang <hongbo.zhang@linaro.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

4 files changed, 111 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/dbx5x0.dtsi b/arch/arm/boot/dts/dbx5x0.dtsi
index 4b0e0ca08f40..731086b2fca2 100644
--- a/arch/arm/boot/dts/dbx5x0.dtsi
+++ b/arch/arm/boot/dts/dbx5x0.dtsi
@@ -203,6 +203,14 @@
                                 reg = <0x80157450 0xC>;
                         };
 
+                        thermal@801573c0 {
+                                compatible = "stericsson,db8500-thermal";
+                                reg = <0x801573c0 0x40>;
+                                interrupts = <21 0x4>, <22 0x4>;
+                                interrupt-names = "IRQ_HOTMON_LOW", "IRQ_HOTMON_HIGH";
+                                status = "disabled";
+                         };
+
                         db8500-prcmu-regulators {
                                 compatible = "stericsson,db8500-prcmu-regulator";
 
@@ -660,5 +668,11 @@
                         ranges = <0 0x50000000 0x4000000>;
                         status = "disabled";
                 };
+
+                cpufreq-cooling {
+                        compatible = "stericsson,db8500-cpufreq-cooling";
+                        status = "disabled";
+                 };
+
         };
 };
diff --git a/arch/arm/boot/dts/snowball.dts b/arch/arm/boot/dts/snowball.dts
index 702c0baa6004..c6f85f0bc531 100644
--- a/arch/arm/boot/dts/snowball.dts
+++ b/arch/arm/boot/dts/snowball.dts
@@ -99,6 +99,33 @@
                         status = "okay";
                 };
 
+                prcmu@80157000 {
+                        thermal@801573c0 {
+                                num-trips = <4>;
+
+                                trip0-temp = <70000>;
+                                trip0-type = "active";
+                                trip0-cdev-num = <1>;
+                                trip0-cdev-name0 = "thermal-cpufreq-0";
+
+                                trip1-temp = <75000>;
+                                trip1-type = "active";
+                                trip1-cdev-num = <1>;
+                                trip1-cdev-name0 = "thermal-cpufreq-0";
+
+                                trip2-temp = <80000>;
+                                trip2-type = "active";
+                                trip2-cdev-num = <1>;
+                                trip2-cdev-name0 = "thermal-cpufreq-0";
+
+                                trip3-temp = <85000>;
+                                trip3-type = "critical";
+                                trip3-cdev-num = <0>;
+
+                                status = "okay";
+                         };
+                };
+
                 external-bus@50000000 {
                         status = "okay";
 
@@ -183,5 +210,9 @@
                                 reg = <0x33>;
                         };
                 };
+
+                cpufreq-cooling {
+                        status = "okay";
+                };
         };
 };
diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig
index da6845493caa..250625d5223f 100644
--- a/arch/arm/configs/u8500_defconfig
+++ b/arch/arm/configs/u8500_defconfig
@@ -69,6 +69,8 @@ CONFIG_GPIO_TC3589X=y
 CONFIG_POWER_SUPPLY=y
 CONFIG_AB8500_BM=y
 CONFIG_AB8500_BATTERY_THERM_ON_BATCTRL=y
+CONFIG_THERMAL=y
+CONFIG_CPU_THERMAL=y
 CONFIG_MFD_STMPE=y
 CONFIG_MFD_TC3589X=y
 CONFIG_AB5500_CORE=y
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 416d436111f2..b03216b15495 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -16,6 +16,7 @@
 #include <linux/io.h>
 #include <linux/i2c.h>
 #include <linux/platform_data/i2c-nomadik.h>
+#include <linux/platform_data/db8500_thermal.h>
 #include <linux/gpio.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/pl022.h>
@@ -229,6 +230,67 @@ static struct ab8500_platform_data ab8500_platdata = {
 };
 
 /*
+ * Thermal Sensor
+ */
+
+static struct resource db8500_thsens_resources[] = {
+        {
+                .name = "IRQ_HOTMON_LOW",
+                .start  = IRQ_PRCMU_HOTMON_LOW,
+                .end    = IRQ_PRCMU_HOTMON_LOW,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {
+                .name = "IRQ_HOTMON_HIGH",
+                .start  = IRQ_PRCMU_HOTMON_HIGH,
+                .end    = IRQ_PRCMU_HOTMON_HIGH,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct db8500_thsens_platform_data db8500_thsens_data = {
+        .trip_points[0] = {
+                .temp = 70000,
+                .type = THERMAL_TRIP_ACTIVE,
+                .cdev_name = {
+                        [0] = "thermal-cpufreq-0",
+                },
+        },
+        .trip_points[1] = {
+                .temp = 75000,
+                .type = THERMAL_TRIP_ACTIVE,
+                .cdev_name = {
+                        [0] = "thermal-cpufreq-0",
+                },
+        },
+        .trip_points[2] = {
+                .temp = 80000,
+                .type = THERMAL_TRIP_ACTIVE,
+                .cdev_name = {
+                        [0] = "thermal-cpufreq-0",
+                },
+        },
+        .trip_points[3] = {
+                .temp = 85000,
+                .type = THERMAL_TRIP_CRITICAL,
+        },
+        .num_trips = 4,
+};
+
+static struct platform_device u8500_thsens_device = {
+        .name           = "db8500-thermal",
+        .resource       = db8500_thsens_resources,
+        .num_resources  = ARRAY_SIZE(db8500_thsens_resources),
+        .dev    = {
+                .platform_data  = &db8500_thsens_data,
+        },
+};
+
+static struct platform_device u8500_cpufreq_cooling_device = {
+        .name           = "db8500-cpufreq-cooling",
+};
+
+/*
  * TPS61052
  */
 
@@ -583,6 +645,8 @@ static struct platform_device *snowball_platform_devs[] __initdata = {
         &snowball_key_dev,
         &snowball_sbnet_dev,
         &snowball_gpio_en_3v3_regulator_dev,
+        &u8500_thsens_device,
+        &u8500_cpufreq_cooling_device,
 };
 
 static void __init mop500_init_machine(void)