Hi Anand,
> Move the registration of thermal sensors for tmu_cpu0 from
> exynos5420.dtsi to exynos5-cpu-thermal.dtsi, to avoid duplicate
> registration of the sensors.
>
> Tested on OdroidXU3 board.
>
> Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
> ---
> arch/arm/boot/dts/exynos5-cpu-thermal.dtsi | 58
> ++++++++++++++++++++++++++++++
> arch/arm/boot/dts/exynos5420.dtsi | 4 ---
> arch/arm/boot/dts/exynos5422-odroidxu3.dts | 1 + 3 files changed, 59
> insertions(+), 4 deletions(-) create mode 100644
> arch/arm/boot/dts/exynos5-cpu-thermal.dtsi
>
> diff --git a/arch/arm/boot/dts/exynos5-cpu-thermal.dtsi
> b/arch/arm/boot/dts/exynos5-cpu-thermal.dtsi new file mode 100644
> index 0000000..8fede70
> --- /dev/null
> +++ b/arch/arm/boot/dts/exynos5-cpu-thermal.dtsi
> @@ -0,0 +1,58 @@
> +/*
> + * Device tree sources for Exynos5 thermal zone
> + *
> + * Copyright (c) 2014 Lukasz Majewski <l.majewski@xxxxxxxxxxx>
^^^^^^^^^^^^^^^^ Could you update this
line :-). I'm just reviewer here :-)
> + *
> + * 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.h>
> +
> +/ {
> + thermal-zones {
> + cpu0_thermal: cpu0-thermal {
> + thermal-sensors = <&tmu_cpu0>;
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + trips {
> + cpu_alert0: cpu-alert-0 {
> + temperature = <48000>; /* ms
> */
> + hysteresis = <3000>; /* ms */
^^^^^^^^^
We already have
"millicelsius"
instead od ms
> + type = "active";
> + };
> + cpu_alert1: cpu-alert-1 {
> + temperature = <53000>; /* ms
> */
> + hysteresis = <3000>; /* ms */
> + type = "active";
> + };
> + cpu_alert2: cpu-alert-2 {
> + temperature = <59000>; /* ms
> */
> + hysteresis = <3000>; /* ms */
> + type = "active";
> + };
> + cpu_crit0: cpu-crit-0 {
> + temperature = <75000>; /* ms
> */
> + hysteresis = <0>; /* ms */
> + type = "critical";
Is there any special reasons why we need special values
for cpu0_thermal sensor at XU3? Is something wrong with
default values defined at exynos4-cpu-thermal.dtsi?
If this is Odroid XU3 specific, then IMHO it should be
added to exynos5422-odroidxu3.dts
> + };
> + };
> + cooling-maps {
> + map0 {
> + trip = <&cpu_alert0>;
> + cooling-device = <&fan0 0 1>;
> + };
> + map1 {
> + trip = <&cpu_alert1>;
> + cooling-device = <&fan0 1 2>;
> + };
> + map2 {
> + trip = <&cpu_alert2>;
> + cooling-device = <&fan0 2 3>;
> + };
> + };
> + };
> + };
> +};
> diff --git a/arch/arm/boot/dts/exynos5420.dtsi
> b/arch/arm/boot/dts/exynos5420.dtsi index 6b49f3c..eb0f16c 100644
> --- a/arch/arm/boot/dts/exynos5420.dtsi
> +++ b/arch/arm/boot/dts/exynos5420.dtsi
> @@ -827,10 +827,6 @@
> };
>
> thermal-zones {
> - cpu0_thermal: cpu0-thermal {
> - thermal-sensors = <&tmu_cpu0>;
> - #include "exynos5420-trip-points.dtsi"
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [1]
> - };
> cpu1_thermal: cpu1-thermal {
> thermal-sensors = <&tmu_cpu1>;
> #include "exynos5420-trip-points.dtsi"
> diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> b/arch/arm/boot/dts/exynos5422-odroidxu3.dts index eaec006..c8b3e3e
> 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> @@ -12,6 +12,7 @@
>
> /dts-v1/;
> #include "exynos5800.dtsi"
> +#include "exynos5-cpu-thermal.dtsi"
I would prefer to stick to convention proposed at [1]. It keeps
the locality of the include with respective thermal zone.
>
> / {
> model = "Hardkernel Odroid XU3";
DTS changes should be added to Samsung tree by Samsung maintainer - Mr.
Kukjin Kim.
--
Best regards,
Lukasz Majewski
Samsung R&D Institute Poland (SRPOL) | Linux Platform Group
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