From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: "Frank Wunderlich (linux)" <linux@fw-web.de>
Cc: angelogioacchino.delregno@collabora.com, matthias.bgg@kernel.org,
Andi Shyti <andi.shyti@kernel.org>,
Qii Wang <qii.wang@mediatek.com>,
Wojciech Siudy <wojciech.siudy@nokia.com>,
linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org,
daniel@makrotopia.org
Subject: Re: i2c issues in 6.18 on R4, but not r4pro (both mt7988 with i2c-mux on i2c2)
Date: Sun, 2 Nov 2025 13:45:09 +0100 [thread overview]
Message-ID: <aQdSVcazPQl-shR6@shikoro> (raw)
In-Reply-To: <64fb54d5f2bc929720d3313f7fa2d8cd@fw-web.de>
>
> I'm sure that i had tested with them already reverted, but maybe powercycle
> was not complete.
> Git bisect pointed also to "i2c: muxes: pca954x: Use reset controller only".
Can you try enabling CONFIG_RESET_GPIO please? It is probably that this
driver is missing. The core relies on that driver for the fallback the
above patch makes use of. Sadly, I couldn't convince the reset
maintainers of a way to automatically select the driver for existing
users :(
next prev parent reply other threads:[~2025-11-02 12:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-30 10:38 i2c issues in 6.18 on R4, but not r4pro (both mt7988 with i2c-mux on i2c2) Frank Wunderlich (linux)
2025-11-02 11:39 ` Frank Wunderlich (linux)
2025-11-02 12:45 ` Wolfram Sang [this message]
2025-11-02 18:00 ` Frank Wunderlich (linux)
2025-11-02 22:49 ` Wolfram Sang
2025-11-05 11:51 ` Wolfram Sang
2025-11-05 12:02 ` AngeloGioacchino Del Regno
2025-11-05 12:08 ` Frank Wunderlich
2025-11-05 12:30 ` AngeloGioacchino Del Regno
2025-11-05 11:25 ` AngeloGioacchino Del Regno
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