From patchwork Tue Jan 30 16:35:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13537703 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 9C5DF823A7; Tue, 30 Jan 2024 16:36:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706632571; cv=none; b=kWS1i4vYPhVb45zkcBxj0dKs/K+aOMTmqKUTFBGnGEEJuqEUyTd54SXr7wS+wR3DazTPQDdx+RoHwd5UbL0uQzXPLu0HKw91ulqsWwRMZ7T6Jxr7OKQr1i8V/BssMMYTPDXnlZVBBjsDTXm/6Oa63z5xtvjzYmY/nJcd3oArYek= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706632571; c=relaxed/simple; bh=TE2iirVtYoKCAw2/bL3eaJ6pOiqwebJxGNDjY7hZ40E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=tMW45nAUcVa+fueY/mPPsTUzsC+BLJwgJXGE550S/qCHhODFN4cYd8smEhBB1LsS+CbKKZy49dyxe1lGwidYWMjvV/V01W5zrdhmrZ8gg3Os1Io1YEPvKScxVQe1RX6Kkk0caoWyIwqgijdYqb+nmB5aANWJ2r9UuswTDYlQaVg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-IronPort-AV: E=Sophos;i="6.05,230,1701097200"; d="scan'208";a="192260854" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 31 Jan 2024 01:36:08 +0900 Received: from localhost.localdomain (unknown [10.226.92.244]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 9FC994021750; Wed, 31 Jan 2024 01:36:04 +0900 (JST) From: Biju Das To: Mauro Carvalho Chehab Cc: Biju Das , Hans Verkuil , Sakari Ailus , Laurent Pinchart , =?utf-8?q?Uwe_Kleine-?= =?utf-8?q?K=C3=B6nig?= , Rob Herring , Lad Prabhakar , linux-media@vger.kernel.org, Geert Uytterhoeven , Biju Das , linux-renesas-soc@vger.kernel.org, Laurent Pinchart Subject: [PATCH v2 2/4] media: platform: rzg2l-cru: rzg2l-ip: Add delay after D-PHY reset Date: Tue, 30 Jan 2024 16:35:51 +0000 Message-Id: <20240130163553.116249-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240130163553.116249-1-biju.das.jz@bp.renesas.com> References: <20240130163553.116249-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 As per section 35.3.1 Starting Reception for the MIPI CSI-2 Input on the latest hardware manual (R01UH0914EJ0140 Rev.1.40) it is mentioned that after DPHY reset, we need to wait for 1 msec or more before start receiving data from the sensor. So add a delay after pre_streamon(). Signed-off-by: Biju Das Reviewed-by: Laurent Pinchart --- v1->v2: * Added Rb tag from Laurent. * Replaced usleep_range()->fsleep(). * Added blank space after manual in commit description. --- drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c index 9f351a05893e..8466b4e55909 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c @@ -5,6 +5,7 @@ * Copyright (C) 2022 Renesas Electronics Corp. */ +#include #include "rzg2l-cru.h" struct rzg2l_cru_ip_format { @@ -71,6 +72,8 @@ static int rzg2l_cru_ip_s_stream(struct v4l2_subdev *sd, int enable) if (ret) return ret; + fsleep(1000); + ret = rzg2l_cru_start_image_processing(cru); if (ret) { v4l2_subdev_call(cru->ip.remote, video, post_streamoff);