From patchwork Mon Aug 19 19:25:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 11103193 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 3794714DB for ; Tue, 20 Aug 2019 07:43:40 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 BDCB222DCB for ; Tue, 20 Aug 2019 07:43:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="RtguzNi4"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="p6RdV/Ep" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BDCB222DCB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 08CBF16D0; Tue, 20 Aug 2019 09:42:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 08CBF16D0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1566287018; bh=uVBVP52GBwUuGj5KqEjwHwofGEaLFn1ELoaD8giqXQw=; h=From:To:Date:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=RtguzNi4CAMnVVirZK9dmDSvuvYw62bc8xM89TFGwbSgNz0ImnfLHfLB2oCujvV+C wwYnaWkQ3hN9U1PtcfxRSGkVNiHBwG1ZDin2SF/LjVNa//X5SY7vU5j2Lu9gDDrlTt +zbnnC8KKpgOw55+nXCIjAfGapglr4ApnjMrf4L4= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 3742CF80CBB; Tue, 20 Aug 2019 09:19:16 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 4857CF80307; Mon, 19 Aug 2019 22:04:11 +0200 (CEST) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id BFE86F80639 for ; Mon, 19 Aug 2019 21:26:33 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz BFE86F80639 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="p6RdV/Ep" 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 E0E92206C1; Mon, 19 Aug 2019 19:26:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566242792; bh=VhgrAobupFnriBgAL6k/Hl/4bbBPIrD3sq1OXXE+ARA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=p6RdV/Ep6Zv/LdJ6M63W54T7enRfvTzAFbFTpGD6mSPL6xECJZJtZgMIyJThLBUQE h8hfQANxa2XBhT49fZUNlmbNmMs6tSRA8KA/gyh+0tSsqtI/Fbm247keYgCwCuuJOJ kClyW1GK3ieNh3fbnQAI6YrtJpWlJ6xlbIERyND0= From: Maxime Ripard To: Chen-Yu Tsai , Maxime Ripard , lgirdwood@gmail.com, broonie@kernel.org Date: Mon, 19 Aug 2019 21:25:27 +0200 Message-Id: <26392af30b3e7b31ee48d5b867d45be8675db046.1566242458.git-series.maxime.ripard@bootlin.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 20 Aug 2019 09:18:29 +0200 Cc: codekipper@gmail.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [alsa-devel] [PATCH 20/21] ASoC: sun4i-i2s: Add support for TDM slots X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" 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, };