Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758496Ab2JXL7n (ORCPT ); Wed, 24 Oct 2012 07:59:43 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:39931 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758472Ab2JXL7i (ORCPT ); Wed, 24 Oct 2012 07:59:38 -0400 From: "hongbo.zhang" To: linaro-dev@lists.linaro.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: patches@linaro.org, linaro-kernel@lists.linaro.org, STEricsson_nomadik_linux@list.st.com, kernel@igloocommunity.org, "hongbo.zhang" Subject: [PATCH V2 6/6] Thermal: Add ST-Ericsson DB8500 thermal properties and platform data. Date: Wed, 24 Oct 2012 19:58:20 +0800 Message-Id: <1351079900-32236-7-git-send-email-hongbo.zhang@linaro.com> X-Mailer: git-send-email 1.7.11.3 In-Reply-To: <1351079900-32236-1-git-send-email-hongbo.zhang@linaro.com> References: <1350387889-15324-1-git-send-email-hongbo.zhang@linaro.com> <1351079900-32236-1-git-send-email-hongbo.zhang@linaro.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6314 Lines: 236 From: "hongbo.zhang" 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 --- .../devicetree/bindings/thermal/db8500-thermal.txt | 40 ++++++++++++++ arch/arm/boot/dts/dbx5x0.dtsi | 14 +++++ arch/arm/boot/dts/snowball.dts | 31 +++++++++++ arch/arm/mach-ux500/board-mop500.c | 64 ++++++++++++++++++++++ 4 files changed, 149 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/db8500-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/db8500-thermal.txt b/Documentation/devicetree/bindings/thermal/db8500-thermal.txt new file mode 100644 index 0000000..80d53e6 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/db8500-thermal.txt @@ -0,0 +1,40 @@ +* ST-Ericsson DB8500 Thermal + +** Thermal node properties: + +- compatible : "stericsson,db8500-thermal"; +- reg : address range of the thermal sensor registers; +- interrupts : interrupts generated form PRCMU; +- interrupt-names : "IRQ_HOTMON_LOW" and "IRQ_HOTMON_HIGH"; +- num-trips : number of total trip points; +- tripN-temp : temperature of trip point N; +- tripN-type : type of trip point N, should be one of "active" "passive" "hot" "critical"; +- tripN-cdev-num : number of the cooling devices which can be bound to trip point N; +- tripN-cdev-nameM : name of the No. M cooling device of trip point N; + +Usually the num-trips and tripN-*** are seperated in board related dts files. + +Example: +thermal@801573c0 { + compatible = "stericsson,db8500-thermal"; + reg = <0x801573c0 0x40>; + interrupts = <21 0x4>, <22 0x4>; + interrupt-names = "IRQ_HOTMON_LOW", "IRQ_HOTMON_HIGH"; + + num-trips = <3>; + + 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 = <2>; + trip1-cdev-name0 = "thermal-cpufreq-0"; + trip1-cdev-name1 = "thermal-fan"; + + trip2-temp = <85000>; + trip2-type = "critical"; + trip2-cdev-num = <0>; +} diff --git a/arch/arm/boot/dts/dbx5x0.dtsi b/arch/arm/boot/dts/dbx5x0.dtsi index 748ba7a..949edc2 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"; @@ -645,5 +653,11 @@ 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 702c0ba..c6f85f0 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/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index 416d436..b03216b 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -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) -- 1.7.11.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/