From patchwork Wed Jun 19 22:39:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 805828 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 7588415A846; Wed, 19 Jun 2024 22:39:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718836782; cv=none; b=KI3cUEgBDhLKmz/cS0B2Ny1nV1fgBQX8gZEg/Zmi6VNrdGlHASEcw8P95vzbjCqTfWlFiFklFzS2FBNeuUm/ykAnxmGeThXIOlEb0rgCdGlksLJQiVJNrrq16VDQV0SV32QnNAW5QzwcoRp+Abs4fLD9yI+XofAKeCBU+C2uOJM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718836782; c=relaxed/simple; bh=hCF/YLBl+jQ/nXcdZX0uViq5WPtL3T3hq0fQGhY3nXM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=V7HKUGFHOa718N9rUD50h8xpgg1gaFw6StG08TyHiNQ5jwe6jbjn/rmU26M1r7G7KSDPlSGLY1bKgFyMQP6U4/PObfjntIRIq0ke0e2zRXVwKfFmq33uaoQUMWvcAPTZmlc1hGe7eawtL+hQxIrDaxFlKsgCAOyXAo597R2vmwE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=jtVlMcCj; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="jtVlMcCj" Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id A43338E1; Thu, 20 Jun 2024 00:39:18 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1718836758; bh=hCF/YLBl+jQ/nXcdZX0uViq5WPtL3T3hq0fQGhY3nXM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jtVlMcCjt714bZAqPbiLGiNTcQ1B1FZgiy2lbW6XIKvAqCFs35+bLa51KxDCBUWG4 +nEfJEV/qUdm+vbTvXasSVIBf9XC4CE2W0afd883DsN87t+WkFN9r+BZesnIorwyxj EU9layc93Li64dBr0ahCDM9lZKQnAZZPbwVn5Y4s= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Sakari Ailus , Kieran Bingham , Tomi Valkeinen , Jacopo Mondi Subject: [PATCH v1.1 6/8] media: renesas: vsp1: Print debug message to diagnose validation failure Date: Thu, 20 Jun 2024 01:39:15 +0300 Message-ID: <20240619223915.7183-1-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 2.44.2 In-Reply-To: <20240619012356.22685-7-laurent.pinchart+renesas@ideasonboard.com> References: <20240619012356.22685-7-laurent.pinchart+renesas@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 When formats don't match between a subdev and a connected video device, starting streaming returns an error without giving the user any indication as to what went wrong. To help debugging pipeline misconfigurations, add a debug message that indicates the cause of the failure. Signed-off-by: Laurent Pinchart Reviewed-by: Kieran Bingham --- Changes since v1: - Replace -EINVAL with -EPIPE --- drivers/media/platform/renesas/vsp1/vsp1_video.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/renesas/vsp1/vsp1_video.c b/drivers/media/platform/renesas/vsp1/vsp1_video.c index 5a9cb0e5640e..28cee0304e77 100644 --- a/drivers/media/platform/renesas/vsp1/vsp1_video.c +++ b/drivers/media/platform/renesas/vsp1/vsp1_video.c @@ -78,8 +78,14 @@ static int vsp1_video_verify_format(struct vsp1_video *video) if (video->rwpf->fmtinfo->mbus != fmt.format.code || video->rwpf->format.height != fmt.format.height || - video->rwpf->format.width != fmt.format.width) - return -EINVAL; + video->rwpf->format.width != fmt.format.width) { + dev_dbg(video->vsp1->dev, + "Format mismatch: 0x%04x/%ux%u != 0x%04x/%ux%u\n", + video->rwpf->fmtinfo->mbus, video->rwpf->format.width, + video->rwpf->format.height, fmt.format.code, + fmt.format.width, fmt.format.height); + return -EPIPE; + } return 0; }