From patchwork Thu Apr 8 04:29:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 12190025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4FE50C433ED for ; Thu, 8 Apr 2021 04:31:20 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5D385611C0 for ; Thu, 8 Apr 2021 04:31:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5D385611C0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=renesas.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id EC3751690; Thu, 8 Apr 2021 06:30:27 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz EC3751690 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1617856278; bh=N3MxgCOimYAfCWGgrRMTnu70QxJURYTw92QPIzAQb9w=; h=Date:From:Subject:To:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=o95JHp/UyK7P/nZyysnqjjhHCQjmMPKDT+Cm122lXalLT9rteM/KyUiBHM492NS5r 3JZPpYjUOwEjdbAkUE4onduz6l4arSQTqyR3q2e9dRqpIRpsJO/DHrnhmxj32+8k1e 9OyDt5zbSf8rb0WS8cEuYaf6FyRahz/iFo4PTsNM= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id A6C91F8049C; Thu, 8 Apr 2021 06:29:24 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 1102CF80423; Thu, 8 Apr 2021 06:29:23 +0200 (CEST) Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by alsa1.perex.cz (Postfix) with ESMTP id 400DCF804AA for ; Thu, 8 Apr 2021 06:29:16 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 400DCF804AA Date: 08 Apr 2021 13:29:15 +0900 X-IronPort-AV: E=Sophos;i="5.82,205,1613401200"; d="scan'208";a="77618315" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 08 Apr 2021 13:29:15 +0900 Received: from mercury.renesas.com (unknown [10.166.252.133]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id C169A41B413E; Thu, 8 Apr 2021 13:29:15 +0900 (JST) Message-ID: <87zgy9z9es.wl-kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto Subject: [PATCH 5/5] ASoC: rsnd: add usage for SRC User-Agent: Wanderlust/2.15.9 Emacs/26.3 Mule/6.0 To: Mark Brown In-Reply-To: <877dld1jud.wl-kuninori.morimoto.gx@renesas.com> References: <877dld1jud.wl-kuninori.morimoto.gx@renesas.com> MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Cc: Linux-ALSA X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Kuninori Morimoto This patch add missing usage comment for SRC. Signed-off-by: Kuninori Morimoto --- sound/soc/sh/rcar/src.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c index 585ffba0244b..628af8f3920d 100644 --- a/sound/soc/sh/rcar/src.c +++ b/sound/soc/sh/rcar/src.c @@ -5,6 +5,15 @@ // Copyright (C) 2013 Renesas Solutions Corp. // Kuninori Morimoto +/* + * You can use Synchronous Sampling Rate Convert (if no DVC) + * + * amixer set "SRC Out Rate" on + * aplay xxx.wav & + * amixer set "SRC Out Rate" 96000 // convert rate to 96000Hz + * amixer set "SRC Out Rate" 22050 // convert rate to 22050Hz + */ + /* * you can enable below define if you don't need * SSI interrupt status debug message when debugging