From patchwork Fri Jan 8 08:53:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xu Wang X-Patchwork-Id: 12006083 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=-16.8 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,USER_AGENT_GIT 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 67191C433DB for ; Fri, 8 Jan 2021 08:54:30 +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 D7AE022248 for ; Fri, 8 Jan 2021 08:54:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D7AE022248 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn 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 2FEE116AD; Fri, 8 Jan 2021 09:53:36 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 2FEE116AD DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1610096066; bh=2jWceUbZh6MrbsPjW8NMHq/2QwyFs8lI10Ogvkc3Rb8=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=NRRyzeLIZKDTSqquaU3yLzWzfWQRZHcXDbwqnHFQM+kcei/SAGnnoZDJNzrLEhmpb uj6WXMukiQriLM0TSnMID6IKiNRtiN98/g6fxqujNmfCsm77SenwGk+nGAMEDXR9iL sQYOPkJqahdjFjsjcauGYO31Tr38QzUEE2pEjszo= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 906E1F800FD; Fri, 8 Jan 2021 09:53:35 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id BD62EF80166; Fri, 8 Jan 2021 09:53:34 +0100 (CET) Received: from cstnet.cn (smtp21.cstnet.cn [159.226.251.21]) by alsa1.perex.cz (Postfix) with ESMTP id 28664F800FD for ; Fri, 8 Jan 2021 09:53:26 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 28664F800FD Received: from localhost.localdomain (unknown [124.16.141.241]) by APP-01 (Coremail) with SMTP id qwCowADHzxOCHfhf2ImaAQ--.7931S2; Fri, 08 Jan 2021 16:53:22 +0800 (CST) From: Xu Wang To: support.opensource@diasemi.com, lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org Subject: [PATCH] ASoC: codecs: da*: Remove redundant null check before clk_prepare_enable/clk_disable_unprepare Date: Fri, 8 Jan 2021 08:53:19 +0000 Message-Id: <20210108085319.6912-1-vulab@iscas.ac.cn> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: qwCowADHzxOCHfhf2ImaAQ--.7931S2 X-Coremail-Antispam: 1UD129KBjvJXoWxZr1UKFW5ZFWftF4DZrW8Zwb_yoW5ury3pF n3trZYq3y7XFWrZrn8Jrs7ZF10grWY9FWUXws2k3W5Xr15AFs2gw1ktr13ZFZ5AF93Crnx WrnFqrW0yF97Wa7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUkqb7Iv0xC_Kw4lb4IE77IF4wAFF20E14v26r4j6ryUM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rw A2F7IY1VAKz4vEj48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xII jxv20xvEc7CjxVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwV C2z280aVCY1x0267AKxVW0oVCq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC 0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUAVWUtwAv7VC2z280aVAFwI0_Gr1j6F 4UJwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lc2xSY4AK67AK6r43MxAI w28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr 4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxG rwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJw CI42IY6xAIw20EY4v20xvaj40_Wr1j6rW3Jr1lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAI cVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU5PKs5UUUUU== X-Originating-IP: [124.16.141.241] X-CM-SenderInfo: pyxotu46lvutnvoduhdfq/1tbiCQoPA102Z2nUrwAAsR Cc: linux-kernel@vger.kernel.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" Because clk_prepare_enable() and clk_disable_unprepare() already checked NULL clock parameter, so the additional checks are unnecessary, just remove them. Signed-off-by: Xu Wang --- sound/soc/codecs/da7218.c | 13 +++++-------- sound/soc/codecs/da7219-aad.c | 19 ++++++++----------- sound/soc/codecs/da7219.c | 3 +-- 3 files changed, 14 insertions(+), 21 deletions(-) diff --git a/sound/soc/codecs/da7218.c b/sound/soc/codecs/da7218.c index 2bfafbe9e3dc..324d95e3b48a 100644 --- a/sound/soc/codecs/da7218.c +++ b/sound/soc/codecs/da7218.c @@ -2582,12 +2582,10 @@ static int da7218_set_bias_level(struct snd_soc_component *component, case SND_SOC_BIAS_PREPARE: /* Enable MCLK for transition to ON state */ if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY) { - if (da7218->mclk) { - ret = clk_prepare_enable(da7218->mclk); - if (ret) { - dev_err(component->dev, "Failed to enable mclk\n"); - return ret; - } + ret = clk_prepare_enable(da7218->mclk); + if (ret) { + dev_err(component->dev, "Failed to enable mclk\n"); + return ret; } } @@ -2605,8 +2603,7 @@ static int da7218_set_bias_level(struct snd_soc_component *component, DA7218_LDO_EN_MASK); } else { /* Remove MCLK */ - if (da7218->mclk) - clk_disable_unprepare(da7218->mclk); + clk_disable_unprepare(da7218->mclk); } break; case SND_SOC_BIAS_OFF: diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c index 48081d71c22c..fa61cfc8e50c 100644 --- a/sound/soc/codecs/da7219-aad.c +++ b/sound/soc/codecs/da7219-aad.c @@ -123,15 +123,13 @@ static void da7219_aad_hptest_work(struct work_struct *work) mutex_lock(&da7219->pll_lock); /* Ensure MCLK is available for HP test procedure */ - if (da7219->mclk) { - ret = clk_prepare_enable(da7219->mclk); - if (ret) { - dev_err(component->dev, "Failed to enable mclk - %d\n", ret); - mutex_unlock(&da7219->pll_lock); - mutex_unlock(&da7219->ctrl_lock); - snd_soc_dapm_mutex_unlock(dapm); - return; - } + ret = clk_prepare_enable(da7219->mclk); + if (ret) { + dev_err(component->dev, "Failed to enable mclk - %d\n", ret); + mutex_unlock(&da7219->pll_lock); + mutex_unlock(&da7219->ctrl_lock); + snd_soc_dapm_mutex_unlock(dapm); + return; } /* @@ -318,8 +316,7 @@ static void da7219_aad_hptest_work(struct work_struct *work) da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0); /* Remove MCLK, if previously enabled */ - if (da7219->mclk) - clk_disable_unprepare(da7219->mclk); + clk_disable_unprepare(da7219->mclk); mutex_unlock(&da7219->pll_lock); mutex_unlock(&da7219->ctrl_lock); diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index e9b45daec0ca..50307cc9d640 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1826,8 +1826,7 @@ static int da7219_set_bias_level(struct snd_soc_component *component, if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_PREPARE) { /* Remove MCLK */ - if (da7219->mclk) - clk_disable_unprepare(da7219->mclk); + clk_disable_unprepare(da7219->mclk); } break; case SND_SOC_BIAS_OFF: