From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=79.135.106.121 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792506418; b=16ia3XULsoNmOS3AE06/Y/oTBjzqDoF1XFIDoGg0OtEbJ211qrPScsuujfjQJsqNJ3V/ FytYWjf07QbxGFdwOts2oqbMEzm106KFViHaWCrkeDmH4AHtcdN8jghjYwKCIR+byAopl jAi15Uw0gJpKNTo4w1oshi0NvIahCVs6Pji+b9GI4SK3Yq+fjBQT+gzjza6tlt5KoO/Dv 0WzEeEL2p0a4M3r33q796/KG8ZKKO0/5MSlwWKie7SJ1dAlGaD7CCio1d65vQ+HNrcenw 62hmxJwNO7iqHuTkVeYL9vnixHDpRFZLNeng3c/Ro3mdLpHrEflLS/wRRjsNnQwpBYw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792506418; h=DMARC-Filter:DKIM-Signature:Date:To:From:Cc:Subject:Message-ID: In-Reply-To:References:Feedback-ID:X-Pm-Message-ID:MIME-Version: Content-Type:Content-Transfer-Encoding; bh=+g08uAhXqYKhCa3FdEX1OoM2Qo5+lDEhNVXKFxBV9mM=; b=vlv7ZhtauH1/PbQOJNu1L8lGKKrkQ+PjewS2SnfNfXbkXaS3ma3XXgEdqSuAVuGTu0/0 hPjTrARcEU/OZPbqtlPHYs5Z6L4xzrOZaXTOL+nhQ1VhcPla+CklyK3HxYy17+Z9L3ebr pbStxDXQ8QBROGNztLwPSSyPNFxnMPWRIMyET+q4T40o1wmk5rOAv26HQjcWglLG2VR7B UpAQuXWBRKjSJ9IIOhOM4T9cuGKxMO1/QpOWa+/u7vwc6ZxP9CAEbgqhfFs/9bi69EH8+ hOm5PQIuTda1d+6/gr4GVosn9rstmCjqLMYnMwIGLdKwKleaTonr9Oy64ozENoykKcA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=pm.me; spf=pass smtp.mailfrom=pm.me; dkim=pass header.d=pm.me header.i=@pm.me header.a=rsa-sha256 header.s=protonmail3 header.b=XbvtxDrq; arc=none smtp.remote-ip=79.135.106.121 Received: from mail-106121.protonmail.ch (mail-106121.protonmail.ch [79.135.106.121]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2085606A328 for ; Tue, 20 Oct 2026 14:26:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org E2085606A328 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=pm.me Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pm.me Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=pm.me header.i=@pm.me header.a=rsa-sha256 header.s=protonmail3 header.b=XbvtxDrq DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pm.me; s=protonmail3; t=1792506414; x=1792765614; bh=+g08uAhXqYKhCa3FdEX1OoM2Qo5+lDEhNVXKFxBV9mM=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=XbvtxDrqduWmmBoKEMRi+kVEBP7YU8OeKKcMw0y0o83IGG13MSLea8Fgbn/k5VG9C 4sDRuq30IQKTj2BTPNZ2xA85951V8DNxN3DIBjKkn5DNykCtA/oXo+FQSlPhcOSued j761N1o+fWrU6OsqcYlSPGlaImf0fUuB7y/dGFjZbwkreSeEwdEA9D5TNaz/gqt5CV YDcu3/vfNhZvvd+In5jvZ2C23ho6E4z4KeG/sKhy9/mMCyh+eZ6K8R4De34mTyNv/g MyeuTrzQQwipckeMSSAT+1IOV9t5HKCfGHgc1NYsJfpyi+OTagxpXQelGb1iJeGkZo NO7FnxjV377zg== Date: Tue, 20 Oct 2026 14:26:49 +0000 To: Benjamin Mugnier , George Neacsu From: Sergey Lebedev Cc: Sakari Ailus , Sylvain Petinot , Mauro Carvalho Chehab , Dan Scally , Hans de Goede , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Peter Marshall , Hao Yao , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/4] media: i2c: Add ST VD55G0 global shutter sensor driver Message-ID: <20261020142641.24808-1-lsa.uz@pm.me> In-Reply-To: References: <20261019162722.25587-1-lsa.uz@pm.me> <20261019162722.25587-3-lsa.uz@pm.me> <179243379000.31842.4735750009847702427@gmail.com> <20261019193402.52923-1-lsa.uz@pm.me> <179247822513.25202.7960395606350309657@gmail.com> <20261020085200.60619-1-lsa.uz@pm.me> Feedback-ID: 113843758:user:proton X-Pm-Message-ID: 85762cc40d38bca2648fe6e637be1ef3cf0e2070 X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Benjamin, On 20/10/2026 14:25, Benjamin Mugnier wrote: > I guess there could be an issue on the receiver side ? Maybe your > receiver is ignoring data types and completes the frame with ISL data, > effectively filling up the DMA ? Not on the Intel model: IPU7 drops them, as you expect. With 0x0329 at 1, the test-pattern frames match those at 0 with no shift, and the top rows hold image data, not the embedded lines. On the Snapdragon model it runs the other way: George's stream stops with the status lines off and runs with them on, and on 16/10 his vd55g1 build streamed with them off. So I agree the register itself should not matter there; something else in v1 probably does, and George can narrow it down on CAMSS better than I can. v2 leaves the register at its default, which changes nothing on IPU7. Sergey