From patchwork Thu Nov 17 12:37:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 13046719 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 57F06C433FE for ; Thu, 17 Nov 2022 12:34:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=TWYsYvOzBJ9UslrIUn0v3o1Feb8JgSxnaCEFNjQ3UWw=; b=jNhk3Q7Ea3ex+r 3sLha3H8yRfIqVxmMBhXfqfxVKPdM/Yzs9Xsd/Rnp4Fq9VjzU0tfn2782Xf0aDGVENjdUz606/Q4m dTejeTtP+vMtxwRBnhOoBY+lx9Au1OHFHbU83J5MkcpF7eJ8Qo3iAj61aoA+9Z9M0PD1Rl8kqUeoi FpzeCtFO9zLsT8mR17Eem5+Ssk5gelZvAmNg2P+engITsluFufhPM4Q37/P3FSYu8cV67Ls5m52Fd FwPLwn+ywZauE8Pr0ez8nipdlJ87K/1oNs007BMSETuf0Zzwxuj1GXqfbTkcbRwL8mj97e4ZD67BP TQP/RxpIx/vlewOgMK+w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ove57-00Dlsc-Fo; Thu, 17 Nov 2022 12:33:25 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ove4w-00DloQ-Hu for linux-arm-kernel@lists.infradead.org; Thu, 17 Nov 2022 12:33:15 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1668688395; x=1700224395; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=mriXUUv4YdVpJ92OHSjzRqvTpbgG5OABDyze4/Hv4to=; b=Uuqsnnb7nSrHzkxk72PKBelN3pE+YYpvm+D8ki7lZBJQPZggmg5X1sQm Oa4fbQSjm3jDzIj6NUSgfZ5E1IDacTKq5DsF1JWANegdnJNENZLFs0AwQ X0irriE2vOpe/+DsZ/VqjcTpcCdXl2HK9DVouZte/w4YOeA9gdgDPLE7Y 83Axa+c5TTNHdkJYRJaqWvwgUgrScL6dB6iT1+oRmjbM3EGy2lXJDKTHB q9Z69hKkO+ax+LDN71Uyom5B1MGLxTU39ao+70YLpXbEJJUXPZEyA+GTr 1mBYHXjFruis4iXAUz5Mtd/yXECaPXlcEjdzXU2pwWra8OB0alONYfhD4 Q==; X-IronPort-AV: E=Sophos;i="5.96,171,1665471600"; d="scan'208";a="183977381" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 17 Nov 2022 05:33:08 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.12; Thu, 17 Nov 2022 05:33:06 -0700 Received: from localhost.localdomain (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.12 via Frontend Transport; Thu, 17 Nov 2022 05:33:03 -0700 From: Claudiu Beznea To: , , , , , CC: , , , Claudiu Beznea Subject: [PATCH 1/3] ASoC: mchp-spdiftx: simplify locking around ctrl->ch_stat Date: Thu, 17 Nov 2022 14:37:48 +0200 Message-ID: <20221117123750.291911-2-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20221117123750.291911-1-claudiu.beznea@microchip.com> References: <20221117123750.291911-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221117_043314_676416_E7AFEBF3 X-CRM114-Status: UNSURE ( 8.87 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use a temporary variable to keep the AES3 value. With this a spin_unlock_irqrestore() call has been removed from the final code. Signed-off-by: Claudiu Beznea --- sound/soc/atmel/mchp-spdiftx.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/sound/soc/atmel/mchp-spdiftx.c b/sound/soc/atmel/mchp-spdiftx.c index ab2d7a791f39..4e231cec9045 100644 --- a/sound/soc/atmel/mchp-spdiftx.c +++ b/sound/soc/atmel/mchp-spdiftx.c @@ -355,6 +355,7 @@ static int mchp_spdiftx_hw_params(struct snd_pcm_substream *substream, struct mchp_spdiftx_mixer_control *ctrl = &dev->control; u32 mr; unsigned int bps = params_physical_width(params) / 8; + unsigned char aes3; int ret; dev_dbg(dev->dev, "%s() rate=%u format=%#x width=%u channels=%u\n", @@ -440,48 +441,48 @@ static int mchp_spdiftx_hw_params(struct snd_pcm_substream *substream, mr |= SPDIFTX_MR_BPS(bps); - spin_lock_irqsave(&ctrl->lock, flags); - ctrl->ch_stat[3] &= ~IEC958_AES3_CON_FS; switch (params_rate(params)) { case 22050: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_22050; + aes3 = IEC958_AES3_CON_FS_22050; break; case 24000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_24000; + aes3 = IEC958_AES3_CON_FS_24000; break; case 32000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_32000; + aes3 = IEC958_AES3_CON_FS_32000; break; case 44100: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_44100; + aes3 = IEC958_AES3_CON_FS_44100; break; case 48000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_48000; + aes3 = IEC958_AES3_CON_FS_48000; break; case 88200: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_88200; + aes3 = IEC958_AES3_CON_FS_88200; break; case 96000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_96000; + aes3 = IEC958_AES3_CON_FS_96000; break; case 176400: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_176400; + aes3 = IEC958_AES3_CON_FS_176400; break; case 192000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_192000; + aes3 = IEC958_AES3_CON_FS_192000; break; case 8000: case 11025: case 16000: case 64000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_NOTID; + aes3 = IEC958_AES3_CON_FS_NOTID; break; default: dev_err(dev->dev, "unsupported sample frequency: %u\n", params_rate(params)); - spin_unlock_irqrestore(&ctrl->lock, flags); return -EINVAL; } + spin_lock_irqsave(&ctrl->lock, flags); + ctrl->ch_stat[3] &= ~IEC958_AES3_CON_FS; + ctrl->ch_stat[3] |= aes3; mchp_spdiftx_channel_status_write(dev); spin_unlock_irqrestore(&ctrl->lock, flags);