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x-vs=clean score=-100 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfLVvCP4cLMxNEQHaOuPZ9za5aZc5mDrTuLloU8/OdaBnSAJ77djjrfZu2LXVe4YZw5d+YScwZE5vdDQ7tKWKoe+sQ7hFEv7Ye+6oyX/d85Qt/W61Og7y NQnBBsk0rcuU9AfKNSxCdDYUV2ItU7rTcZzNTsmgX6Mx600vhZB+VIMOs7HWcFGGuNcLeVN4tDR2A+lEIuVG/Rxg2b03ME4lQfVBQEBxBMyk4fzkUWt+9aQt X-CM-Analysis: v=2.3 cv=E8HjW5Vl c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=IkcTkHD0fZMA:10 a=VUJBJC2UJ8kA:10 a=hD80L64hAAAA:8 a=VwQbUJbxAAAA:8 a=yMhMjlubAAAA:8 a=ag1SF4gXAAAA:8 a=WinGGc6PCWDRWg6FmoYA:9 a=7Zwj6sZBwVKJAoWSPKxL6X1jA+E=:19 a=QEXdDO2ut3YA:10 a=AjGcO6oz07-iQ99wixmX:22 a=Yupwre4RP9_Eg_Bd0iYG:22 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967513AbeEXJuA (ORCPT ); Thu, 24 May 2018 05:50:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:39506 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967462AbeEXJtx (ORCPT ); Thu, 24 May 2018 05:49:53 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sylwester Nawrocki , Krzysztof Kozlowski , Mark Brown , Sasha Levin Subject: [PATCH 4.9 69/96] ASoC: samsung: i2s: Ensure the RCLK rate is properly determined Date: Thu, 24 May 2018 11:38:52 +0200 Message-Id: <20180524093609.372400913@linuxfoundation.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180524093605.602125311@linuxfoundation.org> References: <20180524093605.602125311@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sylwester Nawrocki [ Upstream commit 647d04f8e07afc7c3b7a42b3ee01a8b28db29631 ] If the RCLK mux clock configuration is specified in DT and no set_sysclk() callback is used in the sound card driver the sclk_srcrate field will remain set to 0, leading to an incorrect PSR divider setting. To fix this the frequency value is retrieved from the CLK_I2S_RCLK_SRC clock, so the actual RCLK mux selection is taken into account. Signed-off-by: Sylwester Nawrocki Acked-by: Krzysztof Kozlowski Signed-off-by: Mark Brown Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- sound/soc/samsung/i2s.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -642,8 +642,12 @@ static int i2s_set_fmt(struct snd_soc_da tmp |= mod_slave; break; case SND_SOC_DAIFMT_CBS_CFS: - /* Set default source clock in Master mode */ - if (i2s->rclk_srcrate == 0) + /* + * Set default source clock in Master mode, only when the + * CLK_I2S_RCLK_SRC clock is not exposed so we ensure any + * clock configuration assigned in DT is not overwritten. + */ + if (i2s->rclk_srcrate == 0 && i2s->clk_data.clks == NULL) i2s_set_sysclk(dai, SAMSUNG_I2S_RCLKSRC_0, 0, SND_SOC_CLOCK_IN); break; @@ -858,6 +862,11 @@ static int config_setup(struct i2s_dai * return 0; if (!(i2s->quirks & QUIRK_NO_MUXPSR)) { + struct clk *rclksrc = i2s->clk_table[CLK_I2S_RCLK_SRC]; + + if (i2s->rclk_srcrate == 0 && rclksrc && !IS_ERR(rclksrc)) + i2s->rclk_srcrate = clk_get_rate(rclksrc); + psr = i2s->rclk_srcrate / i2s->frmclk / rfs; writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR); dev_dbg(&i2s->pdev->dev,