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Date: Thu, 18 Feb 2016 13:42:03 +0900 From: Krzysztof Kozlowski <k.kozlowski@...sung.com> To: Viresh Kumar <viresh.kumar@...aro.org> Cc: Anand Moon <linux.amoon@...il.com>, Kukjin Kim <kgene@...nel.org>, Lukasz Majewski <l.majewski@...sung.com>, linux-arm-kernel@...ts.infradead.org, "linux-samsung-soc@...r.kernel.org" <linux-samsung-soc@...r.kernel.org>, Linux Kernel <linux-kernel@...r.kernel.org>, Linux PM list <linux-pm@...r.kernel.org>, Zhang Rui <rui.zhang@...el.com>, Eduardo Valentin <edubezval@...il.com>, Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>, Javier Martinez Canillas <javier@....samsung.com> Subject: Re: [RFC 3/3] ARM: dts: Don't overheat the Odroid XU3-Lite on high load On 18.02.2016 11:36, Viresh Kumar wrote: >> >> BTW, I found the issue. The order of trip points in DT: >> thermal_zone0/trip_point_0_hyst:5000 >> thermal_zone0/trip_point_0_temp:50000 >> thermal_zone0/trip_point_0_type:active >> thermal_zone0/trip_point_1_hyst:5000 >> thermal_zone0/trip_point_1_temp:60000 >> thermal_zone0/trip_point_1_type:active >> thermal_zone0/trip_point_2_hyst:5000 >> thermal_zone0/trip_point_2_temp:70000 >> thermal_zone0/trip_point_2_type:active >> thermal_zone0/trip_point_3_hyst:0 >> thermal_zone0/trip_point_3_temp:120000 <---- this should be last one! >> thermal_zone0/trip_point_3_type:critical >> thermal_zone0/trip_point_4_hyst:5000 >> thermal_zone0/trip_point_4_temp:90000 >> thermal_zone0/trip_point_4_type:passive >> thermal_zone0/trip_point_5_hyst:5000 >> thermal_zone0/trip_point_5_temp:110000 >> thermal_zone0/trip_point_5_type:passive >> >> After fixing the order in DT, the cpu cooler starts working. > > Ahh, nice. Damn, not entirely. I almost fried my Odroid (it survived 130 degrees of C)... The TMU supports only 4 trip points, so when I added two new trip points and reordered them... the last two (including critical) was not receiving interrupts. Polling mode is needed. I'll sent some patches soon... BR, Krzysztof
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