From patchwork Fri Jun 16 17:49:51 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 9792521 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CC05760231 for ; Fri, 16 Jun 2017 18:04:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C3AAC285A6 for ; Fri, 16 Jun 2017 18:04:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B7F402862B; Fri, 16 Jun 2017 18:04:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5E1A1285A6 for ; Fri, 16 Jun 2017 18:04:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Subject:Date: Message-Id:In-Reply-To:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: References:List-Owner; bh=ldvCxHJ9C83XZbC++NefHbuQ2gY5F0baqQOg1uQWtJo=; b=eER 3ug5GYDMNGNE2/JIzcacTfppsve3TH85jelUyh1bnhOhQJJDTTiHwJoz7ao46xQOL1Bun+lZAjq4Q gzVVWYVo5ykpF7trofB4KQ4lqHpSS4cAQG/iaJZrpRQUF3NHPirbHV/v2be5xttGJOM8fJUeELIoZ q+eR1eCx0kchRT9d7ciMTr095DS8sXP785HJ898Exbq+mpoZk+oNjc8iymO83YXX/5WsuNy21LgrM VXRaun1PZEn9HxDeHD3uWNAnEI+LuAXp9V3qUqv3cB40njTiVXTuJfebFAB3lkLgVJhAj3UAw3ZIE e3TKs7S490pC4weLk11E7WdMAkuW/fg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dLvbU-0000lq-2h; Fri, 16 Jun 2017 18:04:16 +0000 Received: from mezzanine.sirena.org.uk ([2400:8900::f03c:91ff:fedb:4f4]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dLvPE-0002bZ-Tc for linux-arm-kernel@lists.infradead.org; Fri, 16 Jun 2017 17:51:43 +0000 Received: from debutante.sirena.org.uk ([2001:470:1f1d:6b5::3] helo=debutante) by mezzanine.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1dLvOE-0000LQ-TE; Fri, 16 Jun 2017 17:50:37 +0000 Received: from broonie by debutante with local (Exim 4.89) (envelope-from ) id 1dLvNX-0005bY-5x; Fri, 16 Jun 2017 18:49:51 +0100 From: Mark Brown To: olivier moysan In-Reply-To: <1497615334-7156-8-git-send-email-olivier.moysan@st.com> Message-Id: Date: Fri, 16 Jun 2017 18:49:51 +0100 X-SA-Exim-Connect-IP: 2001:470:1f1d:6b5::3 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Applied "ASoC: stm32: sai: manage master clock" to the asoc tree X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: No (on mezzanine.sirena.org.uk); Unknown failure X-Bad-Reply: In-Reply-To but no 'Re:' in Subject. X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170616_105137_192148_7DB228EE X-CRM114-Status: GOOD ( 12.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, robh@kernel.org, alsa-devel@alsa-project.org, olivier.moysan@st.com, alexandre.torgue@st.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, arnaud.pouliquen@st.com, tiwai@suse.com, lgirdwood@gmail.com, broonie@kernel.org, mcoquelin.stm32@gmail.com, benjamin.gaignard@st.com, perex@perex.cz, linux-arm-kernel@lists.infradead.org, kernel@stlinux.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The patch ASoC: stm32: sai: manage master clock has been applied to the asoc tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From 12093366981de5060379ad7fa173a1d459c49572 Mon Sep 17 00:00:00 2001 From: olivier moysan Date: Fri, 16 Jun 2017 14:15:34 +0200 Subject: [PATCH] ASoC: stm32: sai: manage master clock Disable master clock by default, and activate it only when requested. Signed-off-by: olivier moysan Signed-off-by: Mark Brown --- sound/soc/stm/stm32_sai_sub.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c index 2466af0343db..ce48c02db051 100644 --- a/sound/soc/stm/stm32_sai_sub.c +++ b/sound/soc/stm/stm32_sai_sub.c @@ -220,8 +220,15 @@ static int stm32_sai_set_sysclk(struct snd_soc_dai *cpu_dai, int clk_id, unsigned int freq, int dir) { struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai); + int ret; if ((dir == SND_SOC_CLOCK_OUT) && sai->master) { + ret = regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, + SAI_XCR1_NODIV, + (unsigned int)~SAI_XCR1_NODIV); + if (ret < 0) + return ret; + sai->mclk_rate = freq; dev_dbg(cpu_dai->dev, "SAI MCLK frequency is %uHz\n", freq); } @@ -356,6 +363,10 @@ static int stm32_sai_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) } cr1_mask |= SAI_XCR1_SLAVE; + /* do not generate master by default */ + cr1 |= SAI_XCR1_NODIV; + cr1_mask |= SAI_XCR1_NODIV; + ret = regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, cr1_mask, cr1); if (ret < 0) { dev_err(cpu_dai->dev, "Failed to update CR1 register\n"); @@ -652,6 +663,9 @@ static void stm32_sai_shutdown(struct snd_pcm_substream *substream, regmap_update_bits(sai->regmap, STM_SAI_IMR_REGX, SAI_XIMR_MASK, 0); + regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, SAI_XCR1_NODIV, + SAI_XCR1_NODIV); + clk_disable_unprepare(sai->sai_ck); sai->substream = NULL; }