From patchwork Thu Aug 26 04:01:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: sugar zhang X-Patchwork-Id: 503029 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 1801FC4320A for ; Thu, 26 Aug 2021 04:02:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F0812610E9 for ; Thu, 26 Aug 2021 04:02:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230201AbhHZEDF (ORCPT ); Thu, 26 Aug 2021 00:03:05 -0400 Received: from lucky1.263xmail.com ([211.157.147.131]:54558 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229662AbhHZEDF (ORCPT ); Thu, 26 Aug 2021 00:03:05 -0400 Received: from localhost (unknown [192.168.167.105]) by lucky1.263xmail.com (Postfix) with ESMTP id 65F00C280F; Thu, 26 Aug 2021 12:02:17 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (postfix) whith ESMTP id P21354T140059187595008S1629950526140784_; Thu, 26 Aug 2021 12:02:07 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: <68dca499a54594044e8dc4d897c36382> X-RL-SENDER: sugar.zhang@rock-chips.com X-SENDER: zxg@rock-chips.com X-LOGIN-NAME: sugar.zhang@rock-chips.com X-FST-TO: broonie@kernel.org X-RCPT-COUNT: 6 X-SENDER-IP: 58.22.7.114 X-ATTACHMENT-NUM: 0 X-System-Flag: 0 From: Sugar Zhang To: broonie@kernel.org, heiko@sntech.de Cc: linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, alsa-devel@alsa-project.org, Sugar Zhang Subject: [PATCH v3 01/14] ASoC: rockchip: i2s: Add support for set bclk ratio Date: Thu, 26 Aug 2021 12:01:47 +0800 Message-Id: <1629950520-14190-1-git-send-email-sugar.zhang@rock-chips.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629950441-14118-1-git-send-email-sugar.zhang@rock-chips.com> References: <1629950441-14118-1-git-send-email-sugar.zhang@rock-chips.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patch adds support for set bclk ratio from machine driver. Signed-off-by: Sugar Zhang --- Changes in v3: None Changes in v2: None sound/soc/rockchip/rockchip_i2s.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index c7dc350..c9d5c52 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -49,6 +49,7 @@ struct rk_i2s_dev { bool rx_start; bool is_master_mode; const struct rk_i2s_pins *pins; + unsigned int bclk_ratio; }; static int i2s_runtime_suspend(struct device *dev) @@ -278,7 +279,7 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream, if (i2s->is_master_mode) { mclk_rate = clk_get_rate(i2s->mclk); - bclk_rate = 2 * 32 * params_rate(params); + bclk_rate = i2s->bclk_ratio * params_rate(params); if (bclk_rate == 0 || mclk_rate % bclk_rate) return -EINVAL; @@ -413,6 +414,16 @@ static int rockchip_i2s_trigger(struct snd_pcm_substream *substream, return ret; } +static int rockchip_i2s_set_bclk_ratio(struct snd_soc_dai *dai, + unsigned int ratio) +{ + struct rk_i2s_dev *i2s = to_info(dai); + + i2s->bclk_ratio = ratio; + + return 0; +} + static int rockchip_i2s_set_sysclk(struct snd_soc_dai *cpu_dai, int clk_id, unsigned int freq, int dir) { @@ -441,6 +452,7 @@ static int rockchip_i2s_dai_probe(struct snd_soc_dai *dai) static const struct snd_soc_dai_ops rockchip_i2s_dai_ops = { .hw_params = rockchip_i2s_hw_params, + .set_bclk_ratio = rockchip_i2s_set_bclk_ratio, .set_sysclk = rockchip_i2s_set_sysclk, .set_fmt = rockchip_i2s_set_fmt, .trigger = rockchip_i2s_trigger, @@ -638,6 +650,8 @@ static int rockchip_i2s_probe(struct platform_device *pdev) i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; i2s->capture_dma_data.maxburst = 4; + i2s->bclk_ratio = 64; + dev_set_drvdata(&pdev->dev, i2s); pm_runtime_enable(&pdev->dev);