From patchwork Mon Aug 19 19:25:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 11101767 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 687EA13A0 for ; Mon, 19 Aug 2019 19:32:19 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 390C1206C1 for ; Mon, 19 Aug 2019 19:32:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="TYnAAOjT"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="EL6DlqP+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 390C1206C1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vRA2MfUJ5C5sWsZLAWvXv4Y8YZcmhuCJ76kDu8XtY1g=; b=TYnAAOjTvhvLR+ WIvgU+SmgOQdygWGmEqfnbxh8VteeAqMNxerEqDU/cuEcg3B3R89QpWXA2hpsDuPp7jkAxZuvl+ft kHfo37PxxEKw/n9+4HeiSNVjE2ypFkqxAceWbx6g98BdoQVMpm6MF/QSzRND0NRnUNgGjZjWXGLSf U6XmkQKcwCvysMiatZxYG9+pfwtVnGsuG87DLp56itl7jLiaHwzOr7LAcC6MpFUPsLD6pvvHgoFSf O5XdBHle+etsxM2Kn0lz4Rsg9ql/50IovuIh9f9Pl/+Rhf19x9Xq7u6aPGQeV3G5ktkNVtuYkpHpj E5ltT1qdtfHNNw0Ew1Fw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hznO5-0005Qe-1D; Mon, 19 Aug 2019 19:32:17 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hznHy-0000GG-B2 for linux-arm-kernel@lists.infradead.org; Mon, 19 Aug 2019 19:26:02 +0000 Received: from localhost (lfbn-1-10718-76.w90-89.abo.wanadoo.fr [90.89.68.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C260922CF8; Mon, 19 Aug 2019 19:25:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566242757; bh=a4OAPQC7QBlpR77vZpXRRlHgkluk9x/qSx4mXQiMJE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EL6DlqP+LE2dqslfP6Yd6cUgnNQJ+1zvCC5wFIjj2XWiSBy+It2CGvRnNgB3zIcCS Gy1WcRGCLPYyhl6J2dhvpXPjN6sW4DrW7uNl3PD99yUr7Gj73W3uh0lBIZQCkJC8yf Tj6Fv7Tqy6fxdnxYGrt0PfMtV+ujo2wgH63CC5/E= From: Maxime Ripard To: Chen-Yu Tsai , Maxime Ripard , lgirdwood@gmail.com, broonie@kernel.org Subject: [PATCH 08/21] ASoC: sun4i-i2s: Use module clock as BCLK parent on newer SoCs Date: Mon, 19 Aug 2019 21:25:15 +0200 Message-Id: <0b6665be216b3bd0e7bc43724818f05f3f8ee881.1566242458.git-series.maxime.ripard@bootlin.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190819_122558_586422_3B90032D X-CRM114-Status: GOOD ( 13.68 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: codekipper@gmail.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Maxime Ripard On the first generation of Allwinner SoCs (A10-A31), the i2s controller was using the MCLK as BCLK parent. However, this changed since the introduction of the A83t and BCLK now uses the module clock as its parent. Let's introduce a hook to get the parent rate and use that in our divider calculations. Fixes: 7d2993811a1e ("ASoC: sun4i-i2s: Add support for H3") Fixes: 21faaea1343f ("ASoC: sun4i-i2s: Add support for A83T") Signed-off-by: Maxime Ripard --- sound/soc/sunxi/sun4i-i2s.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index ee8ee3eb2087..51be395102b2 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -152,6 +152,7 @@ struct sun4i_i2s_quirks { struct reg_field field_fmt_bclk; struct reg_field field_fmt_lrclk; + unsigned long (*get_bclk_parent_rate)(const struct sun4i_i2s *); s8 (*get_sr)(const struct sun4i_i2s *, int); s8 (*get_wss)(const struct sun4i_i2s *, int); int (*set_chan_cfg)(const struct sun4i_i2s *, @@ -207,6 +208,16 @@ static const struct sun4i_i2s_clk_div sun4i_i2s_mclk_div[] = { /* TODO - extend divide ratio supported by newer SoCs */ }; +static unsigned long sun4i_i2s_get_bclk_parent_rate(const struct sun4i_i2s *i2s) +{ + return i2s->mclk_freq; +} + +static unsigned long sun8i_i2s_get_bclk_parent_rate(const struct sun4i_i2s *i2s) +{ + return clk_get_rate(i2s->mod_clk); +} + static int sun4i_i2s_get_bclk_div(struct sun4i_i2s *i2s, unsigned long parent_rate, unsigned int sampling_rate, @@ -259,7 +270,7 @@ static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, unsigned int word_size) { struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); - unsigned int oversample_rate, clk_rate; + unsigned int oversample_rate, clk_rate, bclk_parent_rate; int bclk_div, mclk_div; int ret; @@ -301,7 +312,8 @@ static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, return -EINVAL; } - bclk_div = sun4i_i2s_get_bclk_div(i2s, i2s->mclk_freq, + bclk_parent_rate = i2s->variant->get_bclk_parent_rate(i2s); + bclk_div = sun4i_i2s_get_bclk_div(i2s, bclk_parent_rate, rate, word_size); if (bclk_div < 0) { dev_err(dai->dev, "Unsupported BCLK divider: %d\n", bclk_div); @@ -957,6 +969,7 @@ static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = { .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5), .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6), .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7), + .get_bclk_parent_rate = sun4i_i2s_get_bclk_parent_rate, .get_sr = sun4i_i2s_get_sr, .get_wss = sun4i_i2s_get_wss, .set_chan_cfg = sun4i_i2s_set_chan_cfg, @@ -972,6 +985,7 @@ static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = { .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5), .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6), .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7), + .get_bclk_parent_rate = sun4i_i2s_get_bclk_parent_rate, .get_sr = sun4i_i2s_get_sr, .get_wss = sun4i_i2s_get_wss, .set_chan_cfg = sun4i_i2s_set_chan_cfg, @@ -987,6 +1001,7 @@ static const struct sun4i_i2s_quirks sun8i_a83t_i2s_quirks = { .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5), .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6), .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7), + .get_bclk_parent_rate = sun8i_i2s_get_bclk_parent_rate, .get_sr = sun8i_i2s_get_sr_wss, .get_wss = sun8i_i2s_get_sr_wss, .set_chan_cfg = sun8i_i2s_set_chan_cfg, @@ -1005,6 +1020,7 @@ static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = { .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 6), .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7), .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 19, 19), + .get_bclk_parent_rate = sun8i_i2s_get_bclk_parent_rate, .get_sr = sun8i_i2s_get_sr_wss, .get_wss = sun8i_i2s_get_sr_wss, .set_chan_cfg = sun8i_i2s_set_chan_cfg, @@ -1020,6 +1036,7 @@ static const struct sun4i_i2s_quirks sun50i_a64_codec_i2s_quirks = { .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5), .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6), .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7), + .get_bclk_parent_rate = sun4i_i2s_get_bclk_parent_rate, .get_sr = sun4i_i2s_get_sr, .get_wss = sun4i_i2s_get_wss, .set_chan_cfg = sun4i_i2s_set_chan_cfg,