linux-kernel - Aw: Re: [PATCH v1 4/5] thermal/drivers/mediatek/lvts

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Message-ID: <trinity-ecc07569-6b82-472e-80d4-5e41728a4ed1-1761566187916@trinity-msg-rest-gmx-gmx-live-654c5495b9-nsbx8>
Date: Mon, 27 Oct 2025 11:56:28 +0000
From: Frank Wunderlich <frank-w@...lic-files.de>
To: angelogioacchino.delregno@...labora.com, linux@...web.de,
 daniel.lezcano@...aro.org, rui.zhang@...el.com, lukasz.luba@....com,
 robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 matthias.bgg@...il.com
Cc: nfraprado@...labora.com, mason-cw.chang@...iatek.com,
 u.kleine-koenig@...libre.com, bchihi@...libre.com,
 linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, rafael@...nel.org
Subject: Aw: Re: [PATCH v1 4/5] thermal/drivers/mediatek/lvts_thermal: Add
 SoC based golden Temp

Hi Angelo,

> Gesendet: Montag, 27. Oktober 2025 um 11:45
> Von: "AngeloGioacchino Del Regno" <angelogioacchino.delregno@...labora.com>
> Betreff: Re: [PATCH v1 4/5] thermal/drivers/mediatek/lvts_thermal: Add SoC based golden Temp
>
> Il 26/10/25 13:21, Frank Wunderlich ha scritto:
> > From: Frank Wunderlich <frank-w@...lic-files.de>
> > 
> > Add SoC based golden temp for invalid efuse data.
> > 
> > This is a preliminary patch for mt7987 support where goldentemp is
> > slightly higher than other SOCs.
> > 
> 
> I've found this "hack" required for all of the preproduction SoCs, as those are
> usually unfused and/or missing at least some calibration parameters.
> 
> Are you using an early/preproduction/whatever SoC, or are you testing on a retail
> board?

thanks for looking into it. I'm using a Bananapi R4 Lite v1.1 so not pre-production SoC afaik.

Not sure why i ported this patch from sdk (maybe due to patch compatibility and thinking this is needed).
Tested without it and it seems to work as far as i can tell. Will drop it in next round.

For the no-irq part i also ported this from SDK where no irq is defined (i also wondered about missing irq-support as it would require polling to handle emergency shutdown which seems not done in sdk too):

https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/HEAD/autobuild/unified/filogic/24.10/files/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7987.dtsi#556

https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/HEAD/autobuild/unified/filogic/24.10/files/target/linux/mediatek/patches-6.6/999-2101-thermal-mediatek-add-mt7987-lvts-support.patch#160

the irq_enable part is squashed with the mt7988 lvts support:

https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/HEAD/autobuild/unified/filogic/24.10/files/target/linux/mediatek/patches-6.6/999-2100-thermal-mediatek-add-mt7988-lvts-support.patch#110

regards Frank

> Regards,
> Angelo
> 
> > Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
> > ---
> >   drivers/thermal/mediatek/lvts_thermal.c | 13 ++++++++++++-
> >   1 file changed, 12 insertions(+), 1 deletion(-)