From patchwork Mon May 24 06:12:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 446479 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 autolearn=unavailable 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 DDBCDC04FF3 for ; Mon, 24 May 2021 06:14:08 +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 5EA5660241 for ; Mon, 24 May 2021 06:14:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5EA5660241 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 EA475169C; Mon, 24 May 2021 08:13:16 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz EA475169C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1621836847; bh=3DVuIjyaLo1+H79XvOxQ3iXykuFlyKFQHl8vNoc0nTw=; h=Date:From:Subject:To:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=dkw3zpOYYQqn01pL/T66pSnDhx93cSKfszP/4ol327UwB0lmUrHxMoOK0ebskt3Z5 xJDTPHWSIr2XYM1GzYb+1kSvr/fBf1P8R4nYQN0D9WT0JFbJSPMnIN0TJRnZh7en3T L9Ft4IohrCbKv52+qI7ZJ27PssTjd4jjeOMbmPVQ= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id AD21FF8042F; Mon, 24 May 2021 08:12:25 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 59696F80424; Mon, 24 May 2021 08:12:23 +0200 (CEST) Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by alsa1.perex.cz (Postfix) with ESMTP id 6A6A2F8023A for ; Mon, 24 May 2021 08:12:15 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 6A6A2F8023A Date: 24 May 2021 15:12:14 +0900 X-IronPort-AV: E=Sophos;i="5.82,319,1613401200"; d="scan'208";a="82217464" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 24 May 2021 15:12:14 +0900 Received: from mercury.renesas.com (unknown [10.166.252.133]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 2D130400D0C2; Mon, 24 May 2021 15:12:14 +0900 (JST) Message-ID: <87tumsoe2p.wl-kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto Subject: [PATCH 3/3] ASoC: rsnd: add null CLOCKIN support User-Agent: Wanderlust/2.15.9 Emacs/26.3 Mule/6.0 To: Liam Girdwood , Mark Brown , Rob Herring , Jaroslav Kysela In-Reply-To: <87y2c4oe3y.wl-kuninori.morimoto.gx@renesas.com> References: <87y2c4oe3y.wl-kuninori.morimoto.gx@renesas.com> MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org 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 Some Renesas SoC doesn't have full CLOCKIN. This patch add null_clk, and accepts it. Signed-off-by: Kuninori Morimoto --- sound/soc/sh/rcar/adg.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-) diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c index a0b5bd5a7464..134549b16e0a 100644 --- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -3,8 +3,8 @@ // Helper routines for R-Car sound ADG. // // Copyright (C) 2013 Kuninori Morimoto - #include +#include #include "rsnd.h" #define CLKA 0 @@ -389,6 +389,30 @@ void rsnd_adg_clk_control(struct rsnd_priv *priv, int enable) } } +#define NULL_CLK "rsnd_adg_null" +static struct clk *rsnd_adg_null_clk_get(struct rsnd_priv *priv) +{ + static struct clk_hw *hw; + struct device *dev = rsnd_priv_to_dev(priv); + + if (!hw) { + struct clk_hw *_hw; + int ret; + + _hw = clk_hw_register_fixed_rate_with_accuracy(dev, NULL_CLK, NULL, 0, 0, 0); + if (IS_ERR(_hw)) + return NULL; + + ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_simple_get, _hw); + if (ret < 0) + clk_hw_unregister_fixed_rate(_hw); + + hw = _hw; + } + + return clk_hw_get_clk(hw, NULL_CLK); +} + static void rsnd_adg_get_clkin(struct rsnd_priv *priv, struct rsnd_adg *adg) { @@ -398,7 +422,12 @@ static void rsnd_adg_get_clkin(struct rsnd_priv *priv, for (i = 0; i < CLKMAX; i++) { struct clk *clk = devm_clk_get(dev, clk_name[i]); - adg->clk[i] = IS_ERR(clk) ? NULL : clk; + if (IS_ERR(clk)) + clk = rsnd_adg_null_clk_get(priv); + if (IS_ERR(clk)) + dev_err(dev, "no adg clock (%s)\n", clk_name[i]); + + adg->clk[i] = clk; } }