Messages in this thread | | | Date | Thu, 25 Feb 2016 14:46:03 +0530 | From | Alim Akhtar <> | Subject | Re: [PATCH] arm64: dts: Add tmu node for exynos7 |
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Hi Lukasz,
On 02/25/2016 02:28 PM, Lukasz Majewski wrote: > Hi pankaj.dubey, > >> Hi Krzysztof, >> >> On Thursday 25 February 2016 09:36 AM, Krzysztof Kozlowski wrote: >>> On 25.02.2016 12:27, Pankaj Dubey wrote: >>>> From: Alim Akhtar <alim.akhtar@samsung.com> >>>> >>>> This patch adds tmu node, related temprature sensor and triping >>>> point data for Atlas cpu core found on exynos7 SoC. >>>> >>>> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> >>> >>> Yours Sob is missing. >>> >>> Cc-ed Lukasz Majewski. >>> >> >> Due to some technical difficulty Alim posted via my account. He will >> re-spin this patch via his account soon. > > Looking forward to see your patches. :-) > I have resend the patch..please review. Thanks for your time.
> Best regards, > Łukasz Majewski > >> >> Thanks, >> Pankaj Dubey >>> Lukasz, >>> Your review or ack would be appreciated. >>> >>> >>>> --- >>>> .../boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi | 25 >>>> +++++++++ .../arm64/boot/dts/exynos/exynos7-trip-points.dtsi | >>>> 55 ++++++++++++++++++++ >>>> arch/arm64/boot/dts/exynos/exynos7.dtsi | 20 +++++++ >>>> 3 files changed, 100 insertions(+) create mode 100644 >>>> arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi create >>>> mode 100644 arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi >>>> >>>> diff --git >>>> a/arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi >>>> b/arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi new file >>>> mode 100644 index 0000000..1d6dcf2 --- /dev/null >>>> +++ b/arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi >>>> @@ -0,0 +1,25 @@ >>>> +/* >>>> + * Device tree sources for Exynos7 TMU sensor configuration >>>> + * >>>> + * Copyright (c) 2016 Samsung Electronics Co., Ltd. >>>> + * http://www.samsung.com >>>> + * >>>> + * This program is free software; you can redistribute it and/or >>>> modify >>>> + * it under the terms of the GNU General Public License version 2 >>>> as >>>> + * published by the Free Software Foundation. >>>> + * >>>> + */ >>>> + >>>> +#include <dt-bindings/thermal/thermal_exynos.h> >>>> + >>>> +#thermal-sensor-cells = <0>; >>>> +samsung,tmu_gain = <9>; >>>> +samsung,tmu_reference_voltage = <17>; >>>> +samsung,tmu_noise_cancel_mode = <4>; >>>> +samsung,tmu_efuse_value = <75>; >>>> +samsung,tmu_min_efuse_value = <15>; >>>> +samsung,tmu_max_efuse_value = <100>; >>>> +samsung,tmu_first_point_trim = <25>; >>>> +samsung,tmu_second_point_trim = <85>; >>>> +samsung,tmu_default_temp_offset = <50>; >>>> +samsung,tmu_cal_type = <TYPE_ONE_POINT_TRIMMING>; >>>> diff --git a/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi >>>> b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi new file >>>> mode 100644 index 0000000..3970545 >>>> --- /dev/null >>>> +++ b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi >>>> @@ -0,0 +1,55 @@ >>>> +/* >>>> + * Device tree sources for default Exynos7 thermal zone definition >>>> + * >>>> + * Copyright (c) 2016 Samsung Electronics Co., Ltd. >>>> + * http://www.samsung.com >>>> + * >>>> + * This program is free software; you can redistribute it and/or >>>> modify >>>> + * it under the terms of the GNU General Public License version 2 >>>> as >>>> + * published by the Free Software Foundation. >>>> + * >>>> + */ >>>> + >>>> +trips { >>>> + cpu-alert-0 { >>>> + temperature = <75000>; /* millicelsius */ >>>> + hysteresis = <10000>; /* millicelsius */ >>>> + type = "passive"; >>>> + }; >>>> + cpu-alert-1 { >>>> + temperature = <80000>; /* millicelsius */ >>>> + hysteresis = <10000>; /* millicelsius */ >>>> + type = "passive"; >>>> + }; >>>> + cpu-alert-2 { >>>> + temperature = <85000>; /* millicelsius */ >>>> + hysteresis = <10000>; /* millicelsius */ >>>> + type = "passive"; >>>> + }; >>>> + cpu-alert-3 { >>>> + temperature = <90000>; /* millicelsius */ >>>> + hysteresis = <10000>; /* millicelsius */ >>>> + type = "passive"; >>>> + }; >>>> + cpu-alert-4 { >>>> + temperature = <95000>; /* millicelsius */ >>>> + hysteresis = <10000>; /* millicelsius */ >>>> + type = "passive"; >>>> + }; >>>> + cpu-alert-5 { >>>> + temperature = <100000>; /* millicelsius */ >>>> + hysteresis = <10000>; /* millicelsius */ >>>> + type = "passive"; >>>> + }; >>>> + cpu-alert-6 { >>>> + temperature = <110000>; /* millicelsius */ >>>> + hysteresis = <10000>; /* millicelsius */ >>>> + type = "passive"; >>>> + }; >>>> + /* HW Trip point */ >>> >>> The comment looks unnecessary, all of these are HW trip points, >>> right? >>> >>>> + cpu-crit-0 { >>>> + temperature = <115000>; /* millicelsius */ >>>> + hysteresis = <0>; /* millicelsius */ >>>> + type = "critical"; >>>> + }; >>>> +}; >>>> diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi >>>> b/arch/arm64/boot/dts/exynos/exynos7.dtsi index c662f98..fc9d130 >>>> 100644 --- a/arch/arm64/boot/dts/exynos/exynos7.dtsi >>>> +++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi >>>> @@ -27,6 +27,7 @@ >>>> pinctrl6 = &pinctrl_fsys0; >>>> pinctrl7 = &pinctrl_fsys1; >>>> pinctrl8 = &pinctrl_bus1; >>>> + tmuctrl0 = &tmuctrl_0; >>> >>> Why the alias is needed? >>> >>>> }; >>>> >>>> cpus { >>>> @@ -538,6 +539,25 @@ >>>> clocks = <&clock_peric0 PCLK_PWM>; >>>> clock-names = "timers"; >>>> }; >>>> + >>>> + tmuctrl_0: tmu@10060000 { >>>> + compatible = "samsung,exynos7-tmu"; >>>> + reg = <0x10060000 0x200>; >>>> + interrupts = <0 108 0>; >>>> + clocks = <&clock_peris PCLK_TMU>, >>>> + <&clock_peris SCLK_TMU>; >>>> + clock-names = "tmu_apbif", "tmu_sclk"; >>>> + #include "exynos7-tmu-sensor-conf.dtsi" >>>> + }; >>>> + >>>> + thermal-zones { >>>> + atlas_thermal: atlas-thermal { >>> >>> The atlas is a Exynos7 specific codename. The name of node should >>> be a general class of the device, so maybe: >>> atlas_thermal: cluster0-thermal >>> ? >>> >>> Best regards, >>> Krzysztof >>> > > >
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