From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mxout3.routing.net (mxout3.routing.net [134.0.28.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BE3A170814 for ; Sun, 2 Nov 2025 18:00:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=134.0.28.8 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762106430; cv=none; b=ul4KpglqNI+Yo8ry3FONvAOk029wc+C6mcEadBnmU/SXQO5dQKlMZRos+SX8lH614g2p3OL0n52iRlBUs2nMh+jZpbvAWEXw/LNh+1HiTjf1F3QkEi2oenPvtWXK1r475uDKepWVYDUz0BPVPtj1IDrNKRUuoI4MjvDdtPv7CUQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762106430; c=relaxed/simple; bh=zgBaCyA95CkCdyVtikVePSEbwr2ylWzkrJylVaeygJM=; h=MIME-Version:Date:From:To:Cc:Subject:In-Reply-To:References: Message-ID:Content-Type; b=dGv3x5DNDI68xKeBlNsV+n/u3XVDx5siDyvJzKlaSYqAynSO5nNz/fig00yUM1Nw8kTs4acyOpGbkSmUlFK6MYsPwfI1q5c4GgMN8pBhh5devLGRioq7t+sE62sLbBSkDm5tBevHo2OUWjz5CaNMW69WgF/V6k6DH7f4aXeTWhA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=fw-web.de; spf=pass smtp.mailfrom=fw-web.de; dkim=pass (1024-bit key) header.d=mailerdienst.de header.i=@mailerdienst.de header.b=NF9BT8Bs; arc=none smtp.client-ip=134.0.28.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=fw-web.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fw-web.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mailerdienst.de header.i=@mailerdienst.de header.b="NF9BT8Bs" Received: from mxbox2.masterlogin.de (unknown [192.168.10.89]) by mxout3.routing.net (Postfix) with ESMTP id 00BD86010F; Sun, 2 Nov 2025 18:00:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailerdienst.de; s=routing; t=1762106420; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XCdxwgvfLLmISGJYvdvJUkKzM2T1HKuVbOCvYfSZJ8Q=; b=NF9BT8BswEY19Ex/H9Jh2/o1Sv3oXdMuBqMZygyeQUNEeWKx9BjaSwJURPKTs5V4dvWKCv IXJAHz0e08ACesdV7SweQB1xBGFYUIoqTaLtwYmR0a2idG6xxvbwfBZI0ir4ouggJbC1IW 7j3wMnPcPUpLTz+0adgkxrH/YbhXfWI= Received: from webmail.hosting.de (unknown [134.0.26.148]) by mxbox2.masterlogin.de (Postfix) with ESMTPSA id 60E9F1005EC; Sun, 2 Nov 2025 18:00:19 +0000 (UTC) Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Sun, 02 Nov 2025 19:00:19 +0100 From: "Frank Wunderlich (linux)" To: Wolfram Sang Cc: angelogioacchino.delregno@collabora.com, matthias.bgg@kernel.org, Andi Shyti , Qii Wang , Wojciech Siudy , 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) In-Reply-To: References: <3f5ef2d1336933a87d9761b5ff510a1f@fw-web.de> <64fb54d5f2bc929720d3313f7fa2d8cd@fw-web.de> Message-ID: <1144f62ad9886fed60620bce0bbed7ee@fw-web.de> X-Sender: linux@fw-web.de Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-Mail-ID: f37694be-ee31-4dbf-ac46-b50d472b364f Am 2025-11-02 13:45, schrieb Wolfram Sang: > 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 :( Thanks for pointing to this and indeed i had not enabled this. This is my fault and not from reset maintainers as i have my own defconfig. Tested and my mux works now again. Maybe this option should be enabled by default or when the i2c-mux is selected? When moving from specific to a generic aproach (which makes sense) imho it should be mentioned in commit description which option needed instead :) btw. the Authors Email seems not working, got : host nokia-com.mail.protection.outlook.com[52.101.73.24] said: 550 5.4.1 Recipient address rejected: Access denied. or maybe its inbox has a whitelist from which domains he can receive mails and my domain is not added to it. regards Frank