* [PATCH] arm64: dts: exynos: fix type of thermal trip points for Exynos7 [not found] <CGME20180515123755eucas1p278a9c1e9cb0101e406e3839e27f8b3b1@eucas1p2.samsung.com> @ 2018-05-15 12:37 ` Bartlomiej Zolnierkiewicz 2018-05-15 12:59 ` Krzysztof Kozlowski 0 siblings, 1 reply; 3+ messages in thread From: Bartlomiej Zolnierkiewicz @ 2018-05-15 12:37 UTC (permalink / raw) To: linux-arm-kernel Currently Exynos thermal driver treats as "active" all specified trip points before reaching maximum number of hardware supported trip points. Moreover polling-delay-passive is specified as "0" in exynos7.dtsi (IOW passive polling is disabled). Therefore fix type of cpu-alert-0 to cpu-alert6 trip points to be "active" instead of "passive" (cpu-alert-7 type is "critical" so it doesn't need a fixup). Cc: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> --- arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) Index: b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi =================================================================== --- a/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi 2018-05-15 13:57:55.822172496 +0200 +++ b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi 2018-05-15 14:23:12.594016481 +0200 @@ -10,37 +10,37 @@ trips { cpu-alert-0 { temperature = <75000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ - type = "passive"; + type = "active"; }; cpu-alert-1 { temperature = <80000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ - type = "passive"; + type = "active"; }; cpu-alert-2 { temperature = <85000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ - type = "passive"; + type = "active"; }; cpu-alert-3 { temperature = <90000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ - type = "passive"; + type = "active"; }; cpu-alert-4 { temperature = <95000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ - type = "passive"; + type = "active"; }; cpu-alert-5 { temperature = <100000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ - type = "passive"; + type = "active"; }; cpu-alert-6 { temperature = <110000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ - type = "passive"; + type = "active"; }; cpu-crit-0 { temperature = <115000>; /* millicelsius */ ^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] arm64: dts: exynos: fix type of thermal trip points for Exynos7 2018-05-15 12:37 ` [PATCH] arm64: dts: exynos: fix type of thermal trip points for Exynos7 Bartlomiej Zolnierkiewicz @ 2018-05-15 12:59 ` Krzysztof Kozlowski 2018-05-15 16:02 ` Bartlomiej Zolnierkiewicz 0 siblings, 1 reply; 3+ messages in thread From: Krzysztof Kozlowski @ 2018-05-15 12:59 UTC (permalink / raw) To: linux-arm-kernel On Tue, May 15, 2018 at 2:37 PM, Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> wrote: > Currently Exynos thermal driver treats as "active" all specified > trip points before reaching maximum number of hardware supported > trip points. The trip point type describe the way how system should act - use active or passive cooling. It is independent of thermal driver. I do not understand what is exactly wrong... maybe except whether the trip point is active/passive looks like property of board, not SoC itself, but your patch does not address it. > Moreover polling-delay-passive is specified as "0" > in exynos7.dtsi (IOW passive polling is disabled). Which is perfectly fine. TMU driver for Exynos7 supports up to eight trip points in interrupt mode so having polling mode = 0 is good. IOW passive polling is disabled just like active polling is disabled so what did you want to say here? Best regards, Krzysztof > Therefore fix > type of cpu-alert-0 to cpu-alert6 trip points to be "active" > instead of "passive" (cpu-alert-7 type is "critical" so it > doesn't need a fixup). > > Cc: Alim Akhtar <alim.akhtar@samsung.com> > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> > --- > arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi | 14 +++++++------- > 1 file changed, 7 insertions(+), 7 deletions(-) > > Index: b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi > =================================================================== > --- a/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi 2018-05-15 13:57:55.822172496 +0200 > +++ b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi 2018-05-15 14:23:12.594016481 +0200 > @@ -10,37 +10,37 @@ trips { > cpu-alert-0 { > temperature = <75000>; /* millicelsius */ > hysteresis = <10000>; /* millicelsius */ > - type = "passive"; > + type = "active"; > }; > cpu-alert-1 { > temperature = <80000>; /* millicelsius */ > hysteresis = <10000>; /* millicelsius */ > - type = "passive"; > + type = "active"; > }; > cpu-alert-2 { > temperature = <85000>; /* millicelsius */ > hysteresis = <10000>; /* millicelsius */ > - type = "passive"; > + type = "active"; > }; > cpu-alert-3 { > temperature = <90000>; /* millicelsius */ > hysteresis = <10000>; /* millicelsius */ > - type = "passive"; > + type = "active"; > }; > cpu-alert-4 { > temperature = <95000>; /* millicelsius */ > hysteresis = <10000>; /* millicelsius */ > - type = "passive"; > + type = "active"; > }; > cpu-alert-5 { > temperature = <100000>; /* millicelsius */ > hysteresis = <10000>; /* millicelsius */ > - type = "passive"; > + type = "active"; > }; > cpu-alert-6 { > temperature = <110000>; /* millicelsius */ > hysteresis = <10000>; /* millicelsius */ > - type = "passive"; > + type = "active"; > }; > cpu-crit-0 { > temperature = <115000>; /* millicelsius */ > ^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] arm64: dts: exynos: fix type of thermal trip points for Exynos7 2018-05-15 12:59 ` Krzysztof Kozlowski @ 2018-05-15 16:02 ` Bartlomiej Zolnierkiewicz 0 siblings, 0 replies; 3+ messages in thread From: Bartlomiej Zolnierkiewicz @ 2018-05-15 16:02 UTC (permalink / raw) To: linux-arm-kernel On Tuesday, May 15, 2018 02:59:33 PM Krzysztof Kozlowski wrote: > On Tue, May 15, 2018 at 2:37 PM, Bartlomiej Zolnierkiewicz > <b.zolnierkie@samsung.com> wrote: > > Currently Exynos thermal driver treats as "active" all specified > > trip points before reaching maximum number of hardware supported > > trip points. > > The trip point type describe the way how system should act - use > active or passive cooling. It is independent of thermal driver. I do OK, I see it now. Please disregard this patch. Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics ^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-05-15 12:37 ` [PATCH] arm64: dts: exynos: fix type of thermal trip points for Exynos7 Bartlomiej Zolnierkiewicz
2018-05-15 12:59 ` Krzysztof Kozlowski
2018-05-15 16:02 ` Bartlomiej Zolnierkiewicz
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