From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 E4F83C3A59E for ; Wed, 21 Aug 2019 12:05:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AE45B233A0 for ; Wed, 21 Aug 2019 12:05:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566389155; bh=2FRrclBMVAhxORSkvx15JbwCjv+rECZrE3tmzTI6fjQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=MH0hpiF6NAb5YiMSj0mFJi0RsY61almLrkUEYI5TCuf9J2FiJZT3QDtlqclvv0FU9 z8bfWB4Qa3WTJ6WhfACAL4BmepDWtmDH7Wzl2xRuDLgf/2Uqb0x9V5YytALHmIkTpJ Va0dZJNc2/jSZ2tYGbtIkDhu58JinLKyKqU2qP6g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727286AbfHUMFy (ORCPT ); Wed, 21 Aug 2019 08:05:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:55158 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726353AbfHUMFy (ORCPT ); Wed, 21 Aug 2019 08:05:54 -0400 Received: from localhost (lfbn-1-17395-211.w86-250.abo.wanadoo.fr [86.250.200.211]) (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 6825C2089E; Wed, 21 Aug 2019 12:05:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566389153; bh=2FRrclBMVAhxORSkvx15JbwCjv+rECZrE3tmzTI6fjQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IbIaUibt98RW+BrZlXwdHPhbsgLQ9iOj11mOxlw6Yjy1yayKkHC4aRDGmudrko7Kx noHVlKvbF69kchSJz2ghinFmicUmJh1uuf7G/o7kEBUZrBsJJqDiDMperYLvKafvYv b1eKr/vXsFluy6CmtTWTuLDHZlYoB+K02En2rqBs= Date: Wed, 21 Aug 2019 14:05:51 +0200 From: Maxime Ripard To: Sergey Suloev Cc: Chen-Yu Tsai , lgirdwood@gmail.com, broonie@kernel.org, codekipper@gmail.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 20/21] ASoC: sun4i-i2s: Add support for TDM slots Message-ID: <20190821120551.r4b3h4nnet357wem@flea> References: <26392af30b3e7b31ee48d5b867d45be8675db046.1566242458.git-series.maxime.ripard@bootlin.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="hsc5ca3rnlaanrdu" Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --hsc5ca3rnlaanrdu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, On Tue, Aug 20, 2019 at 08:46:30AM +0300, Sergey Suloev wrote: > Hi, Maxime, > > On 8/19/19 10:25 PM, Maxime Ripard wrote: > > From: Maxime Ripard > > > > The i2s controller supports TDM, for up to 8 slots. Let's support the TDM > > API. > > > > Signed-off-by: Maxime Ripard > > --- > > sound/soc/sunxi/sun4i-i2s.c | 40 ++++++++++++++++++++++++++++++++------ > > 1 file changed, 34 insertions(+), 6 deletions(-) > > > > diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c > > index 0dac09814b65..4f76daeaaed7 100644 > > --- a/sound/soc/sunxi/sun4i-i2s.c > > +++ b/sound/soc/sunxi/sun4i-i2s.c > > @@ -168,6 +168,8 @@ struct sun4i_i2s { > > struct reset_control *rst; > > unsigned int mclk_freq; > > + unsigned int slots; > > + unsigned int slot_width; > > struct snd_dmaengine_dai_dma_data capture_dma_data; > > struct snd_dmaengine_dai_dma_data playback_dma_data; > > @@ -287,7 +289,7 @@ static bool sun4i_i2s_oversample_is_valid(unsigned int oversample) > > static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, > > unsigned int rate, > > - unsigned int channels, > > + unsigned int slots, > > unsigned int word_size) > > { > > struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); > > @@ -335,7 +337,7 @@ static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, > > bclk_parent_rate = i2s->variant->get_bclk_parent_rate(i2s); > > bclk_div = sun4i_i2s_get_bclk_div(i2s, bclk_parent_rate, > > - rate, channels, word_size); > > + rate, slots, word_size); > > if (bclk_div < 0) { > > dev_err(dai->dev, "Unsupported BCLK divider: %d\n", bclk_div); > > return -EINVAL; > > @@ -419,6 +421,10 @@ static int sun8i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s, > > const struct snd_pcm_hw_params *params) > > { > > unsigned int channels = params_channels(params); > > + unsigned int slots = channels; > > + > > + if (i2s->slots) > > + slots = i2s->slots; > > /* Map the channels for playback and capture */ > > regmap_write(i2s->regmap, SUN8I_I2S_TX_CHAN_MAP_REG, 0x76543210); > > @@ -428,7 +434,6 @@ static int sun8i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s, > > regmap_update_bits(i2s->regmap, SUN8I_I2S_TX_CHAN_SEL_REG, > > SUN4I_I2S_CHAN_SEL_MASK, > > SUN4I_I2S_CHAN_SEL(channels)); > > - > > regmap_update_bits(i2s->regmap, SUN8I_I2S_RX_CHAN_SEL_REG, > > SUN4I_I2S_CHAN_SEL_MASK, > > SUN4I_I2S_CHAN_SEL(channels)); > > @@ -452,10 +457,18 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, > > struct snd_soc_dai *dai) > > { > > struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); > > + unsigned int word_size = params_width(params); > > unsigned int channels = params_channels(params); > > + unsigned int slots = channels; > > int ret, sr, wss; > > u32 width; > > + if (i2s->slots) > > + slots = i2s->slots; > > + > > + if (i2s->slot_width) > > + word_size = i2s->slot_width; > > + > > ret = i2s->variant->set_chan_cfg(i2s, params); > > if (ret < 0) { > > dev_err(dai->dev, "Invalid channel configuration\n"); > > @@ -477,15 +490,14 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, > > if (sr < 0) > > return -EINVAL; > > - wss = i2s->variant->get_wss(i2s, params_width(params)); > > + wss = i2s->variant->get_wss(i2s, word_size); > > if (wss < 0) > > return -EINVAL; > > regmap_field_write(i2s->field_fmt_wss, wss); > > regmap_field_write(i2s->field_fmt_sr, sr); > > - return sun4i_i2s_set_clk_rate(dai, params_rate(params), > > - channels, params_width(params)); > > + return sun4i_i2s_set_clk_rate(dai, params_rate(params), slots, word_size); > > } > > static int sun4i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s, > > @@ -785,10 +797,26 @@ static int sun4i_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, > > return 0; > > } > > +static int sun4i_i2s_set_tdm_slot(struct snd_soc_dai *dai, > > + unsigned int tx_mask, unsigned int rx_mask, > > + int slots, int slot_width) > > +{ > > + struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); > > + > > + if (slots > 8) > > + return -EINVAL; > > + > > + i2s->slots = slots; > > + i2s->slot_width = slot_width; > > + > > + return 0; > > +} > > + > > static const struct snd_soc_dai_ops sun4i_i2s_dai_ops = { > > .hw_params = sun4i_i2s_hw_params, > > .set_fmt = sun4i_i2s_set_fmt, > > .set_sysclk = sun4i_i2s_set_sysclk, > > + .set_tdm_slot = sun4i_i2s_set_tdm_slot, > > .trigger = sun4i_i2s_trigger, > > }; > > it seems like you forgot to implement sun4i_i2s_dai_ops.set_bclk_ratio > because, as I far as I understand, it should alter tdm slots functionality > indirectly. As far as I can see, while this indeed changes a few things on the TDM setup, it's optional, orthogonal and it has a single user in the tree (some intel platform card). So I'd say that if someone ever needs it, we can have it, but it's not a blocker. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --hsc5ca3rnlaanrdu Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXV0znwAKCRDj7w1vZxhR xRAgAP9EHPMB6Hx7FqcfcszC8f7EF/uLx9RlJGciIrJpOQnKcwEAuaxLthvSNVh/ RddPDN3sljHZtOQBGhyVmlCuwyQoUAk= =iCnK -----END PGP SIGNATURE----- --hsc5ca3rnlaanrdu-- From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 C5D79C3A59E for ; Wed, 21 Aug 2019 12:06:06 +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 9BB302089E for ; 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Wed, 21 Aug 2019 12:05:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566389153; bh=2FRrclBMVAhxORSkvx15JbwCjv+rECZrE3tmzTI6fjQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IbIaUibt98RW+BrZlXwdHPhbsgLQ9iOj11mOxlw6Yjy1yayKkHC4aRDGmudrko7Kx noHVlKvbF69kchSJz2ghinFmicUmJh1uuf7G/o7kEBUZrBsJJqDiDMperYLvKafvYv b1eKr/vXsFluy6CmtTWTuLDHZlYoB+K02En2rqBs= Date: Wed, 21 Aug 2019 14:05:51 +0200 From: Maxime Ripard To: Sergey Suloev Subject: Re: [PATCH 20/21] ASoC: sun4i-i2s: Add support for TDM slots Message-ID: <20190821120551.r4b3h4nnet357wem@flea> References: <26392af30b3e7b31ee48d5b867d45be8675db046.1566242458.git-series.maxime.ripard@bootlin.com> MIME-Version: 1.0 In-Reply-To: User-Agent: NeoMutt/20180716 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190821_050554_274718_3D012CB0 X-CRM114-Status: GOOD ( 20.47 ) 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: alsa-devel@alsa-project.org, lgirdwood@gmail.com, linux-kernel@vger.kernel.org, codekipper@gmail.com, Chen-Yu Tsai , broonie@kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============7742295218853340483==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============7742295218853340483== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="hsc5ca3rnlaanrdu" Content-Disposition: inline --hsc5ca3rnlaanrdu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, On Tue, Aug 20, 2019 at 08:46:30AM +0300, Sergey Suloev wrote: > Hi, Maxime, > > On 8/19/19 10:25 PM, Maxime Ripard wrote: > > From: Maxime Ripard > > > > The i2s controller supports TDM, for up to 8 slots. Let's support the TDM > > API. > > > > Signed-off-by: Maxime Ripard > > --- > > sound/soc/sunxi/sun4i-i2s.c | 40 ++++++++++++++++++++++++++++++++------ > > 1 file changed, 34 insertions(+), 6 deletions(-) > > > > diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c > > index 0dac09814b65..4f76daeaaed7 100644 > > --- a/sound/soc/sunxi/sun4i-i2s.c > > +++ b/sound/soc/sunxi/sun4i-i2s.c > > @@ -168,6 +168,8 @@ struct sun4i_i2s { > > struct reset_control *rst; > > unsigned int mclk_freq; > > + unsigned int slots; > > + unsigned int slot_width; > > struct snd_dmaengine_dai_dma_data capture_dma_data; > > struct snd_dmaengine_dai_dma_data playback_dma_data; > > @@ -287,7 +289,7 @@ static bool sun4i_i2s_oversample_is_valid(unsigned int oversample) > > static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, > > unsigned int rate, > > - unsigned int channels, > > + unsigned int slots, > > unsigned int word_size) > > { > > struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); > > @@ -335,7 +337,7 @@ static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, > > bclk_parent_rate = i2s->variant->get_bclk_parent_rate(i2s); > > bclk_div = sun4i_i2s_get_bclk_div(i2s, bclk_parent_rate, > > - rate, channels, word_size); > > + rate, slots, word_size); > > if (bclk_div < 0) { > > dev_err(dai->dev, "Unsupported BCLK divider: %d\n", bclk_div); > > return -EINVAL; > > @@ -419,6 +421,10 @@ static int sun8i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s, > > const struct snd_pcm_hw_params *params) > > { > > unsigned int channels = params_channels(params); > > + unsigned int slots = channels; > > + > > + if (i2s->slots) > > + slots = i2s->slots; > > /* Map the channels for playback and capture */ > > regmap_write(i2s->regmap, SUN8I_I2S_TX_CHAN_MAP_REG, 0x76543210); > > @@ -428,7 +434,6 @@ static int sun8i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s, > > regmap_update_bits(i2s->regmap, SUN8I_I2S_TX_CHAN_SEL_REG, > > SUN4I_I2S_CHAN_SEL_MASK, > > SUN4I_I2S_CHAN_SEL(channels)); > > - > > regmap_update_bits(i2s->regmap, SUN8I_I2S_RX_CHAN_SEL_REG, > > SUN4I_I2S_CHAN_SEL_MASK, > > SUN4I_I2S_CHAN_SEL(channels)); > > @@ -452,10 +457,18 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, > > struct snd_soc_dai *dai) > > { > > struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); > > + unsigned int word_size = params_width(params); > > unsigned int channels = params_channels(params); > > + unsigned int slots = channels; > > int ret, sr, wss; > > u32 width; > > + if (i2s->slots) > > + slots = i2s->slots; > > + > > + if (i2s->slot_width) > > + word_size = i2s->slot_width; > > + > > ret = i2s->variant->set_chan_cfg(i2s, params); > > if (ret < 0) { > > dev_err(dai->dev, "Invalid channel configuration\n"); > > @@ -477,15 +490,14 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, > > if (sr < 0) > > return -EINVAL; > > - wss = i2s->variant->get_wss(i2s, params_width(params)); > > + wss = i2s->variant->get_wss(i2s, word_size); > > if (wss < 0) > > return -EINVAL; > > regmap_field_write(i2s->field_fmt_wss, wss); > > regmap_field_write(i2s->field_fmt_sr, sr); > > - return sun4i_i2s_set_clk_rate(dai, params_rate(params), > > - channels, params_width(params)); > > + return sun4i_i2s_set_clk_rate(dai, params_rate(params), slots, word_size); > > } > > static int sun4i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s, > > @@ -785,10 +797,26 @@ static int sun4i_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, > > return 0; > > } > > +static int sun4i_i2s_set_tdm_slot(struct snd_soc_dai *dai, > > + unsigned int tx_mask, unsigned int rx_mask, > > + int slots, int slot_width) > > +{ > > + struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); > > + > > + if (slots > 8) > > + return -EINVAL; > > + > > + i2s->slots = slots; > > + i2s->slot_width = slot_width; > > + > > + return 0; > > +} > > + > > static const struct snd_soc_dai_ops sun4i_i2s_dai_ops = { > > .hw_params = sun4i_i2s_hw_params, > > .set_fmt = sun4i_i2s_set_fmt, > > .set_sysclk = sun4i_i2s_set_sysclk, > > + .set_tdm_slot = sun4i_i2s_set_tdm_slot, > > .trigger = sun4i_i2s_trigger, > > }; > > it seems like you forgot to implement sun4i_i2s_dai_ops.set_bclk_ratio > because, as I far as I understand, it should alter tdm slots functionality > indirectly. As far as I can see, while this indeed changes a few things on the TDM setup, it's optional, orthogonal and it has a single user in the tree (some intel platform card). So I'd say that if someone ever needs it, we can have it, but it's not a blocker. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --hsc5ca3rnlaanrdu Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXV0znwAKCRDj7w1vZxhR xRAgAP9EHPMB6Hx7FqcfcszC8f7EF/uLx9RlJGciIrJpOQnKcwEAuaxLthvSNVh/ RddPDN3sljHZtOQBGhyVmlCuwyQoUAk= =iCnK -----END PGP SIGNATURE----- --hsc5ca3rnlaanrdu-- --===============7742295218853340483== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============7742295218853340483==--