From patchwork Tue Aug 24 07:52:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sugar Zhang X-Patchwork-Id: 12454137 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=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 70284C4338F for ; Tue, 24 Aug 2021 07:53:58 +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 3EAE5613D0 for ; Tue, 24 Aug 2021 07:53:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3EAE5613D0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=rock-chips.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=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 7481184A; Tue, 24 Aug 2021 09:53:05 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 7481184A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1629791635; bh=BFtltE3ULQpRYXlfXXOGXizpYCVxrzXvSSF81g7zFvA=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=Fmy/0RXe5JayhXbb8IkswIvKdTeLCIKMU57KgPoah1hozcOn2K86dKxPvmgL9Q36n TPr9uGXXfDQnXhQ2eisTh5Yf8ZMGEqtw/CZya1I6Vepo8lVdV9wclBstBjDkbkJnHd u7XJHLWV5jmVfpnkpBKwxah81Tectr2KVSS4pWlg= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 154F7F80224; Tue, 24 Aug 2021 09:53:05 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 00679F8025C; Tue, 24 Aug 2021 09:53:03 +0200 (CEST) Received: from lucky1.263xmail.com (lucky1.263xmail.com [211.157.147.133]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 97BC4F800AE for ; Tue, 24 Aug 2021 09:52:54 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 97BC4F800AE Received: from localhost (unknown [192.168.167.16]) by lucky1.263xmail.com (Postfix) with ESMTP id 3AEBBD64DD; Tue, 24 Aug 2021 15:52:47 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-SKE-CHECKED: 1 X-ANTISPAM-LEVEL: 2 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (postfix) whith ESMTP id P704T139881101649664S1629791566598648_; Tue, 24 Aug 2021 15:52:47 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: <1e7c645d385e180d1333efdd659781c4> 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 Subject: [PATCH v1 1/7] ASoC: rockchip: Add support for rv1126 pdm Date: Tue, 24 Aug 2021 15:52:31 +0800 Message-Id: <1629791557-13614-1-git-send-email-sugar.zhang@rock-chips.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629791446-13528-1-git-send-email-sugar.zhang@rock-chips.com> References: <1629791446-13528-1-git-send-email-sugar.zhang@rock-chips.com> Cc: Sugar Zhang , linux-rockchip@lists.infradead.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org 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" This patch adds support for rv1126 pdm controller which redesign cic filiter for better performance. Signed-off-by: Sugar Zhang --- sound/soc/rockchip/rockchip_pdm.c | 76 +++++++++++++++++++++++++++++++++++---- sound/soc/rockchip/rockchip_pdm.h | 3 ++ 2 files changed, 73 insertions(+), 6 deletions(-) diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c index 38bd603..67634d1 100644 --- a/sound/soc/rockchip/rockchip_pdm.c +++ b/sound/soc/rockchip/rockchip_pdm.c @@ -24,6 +24,7 @@ enum rk_pdm_version { RK_PDM_RK3229, RK_PDM_RK3308, + RK_PDM_RV1126, }; struct rk_pdm_dev { @@ -121,6 +122,55 @@ static unsigned int get_pdm_ds_ratio(unsigned int sr) return ratio; } +static unsigned int get_pdm_cic_ratio(unsigned int clk) +{ + switch (clk) { + case 4096000: + case 5644800: + case 6144000: + return 0; + case 2048000: + case 2822400: + case 3072000: + return 1; + case 1024000: + case 1411200: + case 1536000: + return 2; + default: + return 1; + } +} + +static unsigned int samplerate_to_bit(unsigned int samplerate) +{ + switch (samplerate) { + case 8000: + case 11025: + case 12000: + return 0; + case 16000: + case 22050: + case 24000: + return 1; + case 32000: + return 2; + case 44100: + case 48000: + return 3; + case 64000: + case 88200: + case 96000: + return 4; + case 128000: + case 176400: + case 192000: + return 5; + default: + return 1; + } +} + static inline struct rk_pdm_dev *to_info(struct snd_soc_dai *dai) { return snd_soc_dai_get_drvdata(dai); @@ -166,7 +216,8 @@ static int rockchip_pdm_hw_params(struct snd_pcm_substream *substream, if (ret) return -EINVAL; - if (pdm->version == RK_PDM_RK3308) { + if (pdm->version == RK_PDM_RK3308 || + pdm->version == RK_PDM_RV1126) { rational_best_approximation(clk_out, clk_src, GENMASK(16 - 1, 0), GENMASK(16 - 1, 0), @@ -194,8 +245,18 @@ static int rockchip_pdm_hw_params(struct snd_pcm_substream *substream, PDM_CLK_FD_RATIO_MSK, val); } - val = get_pdm_ds_ratio(samplerate); - regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_DS_RATIO_MSK, val); + + if (pdm->version == RK_PDM_RV1126) { + val = get_pdm_cic_ratio(clk_out); + regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_CIC_RATIO_MSK, val); + val = samplerate_to_bit(samplerate); + regmap_update_bits(pdm->regmap, PDM_CTRL0, + PDM_SAMPLERATE_MSK, PDM_SAMPLERATE(val)); + } else { + val = get_pdm_ds_ratio(samplerate); + regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_DS_RATIO_MSK, val); + } + regmap_update_bits(pdm->regmap, PDM_HPF_CTRL, PDM_HPF_CF_MSK, PDM_HPF_60HZ); regmap_update_bits(pdm->regmap, PDM_HPF_CTRL, @@ -441,9 +502,10 @@ static bool rockchip_pdm_precious_reg(struct device *dev, unsigned int reg) } static const struct reg_default rockchip_pdm_reg_defaults[] = { - {0x04, 0x78000017}, - {0x08, 0x0bb8ea60}, - {0x18, 0x0000001f}, + { PDM_CTRL0, 0x78000017 }, + { PDM_CTRL1, 0x0bb8ea60 }, + { PDM_CLK_CTRL, 0x0000e401 }, + { PDM_DMA_CTRL, 0x0000001f }, }; static const struct regmap_config rockchip_pdm_regmap_config = { @@ -469,6 +531,8 @@ static const struct of_device_id rockchip_pdm_match[] __maybe_unused = { .data = (void *)RK_PDM_RK3308 }, { .compatible = "rockchip,rk3308-pdm", .data = (void *)RK_PDM_RK3308 }, + { .compatible = "rockchip,rv1126-pdm", + .data = (void *)RK_PDM_RV1126 }, {}, }; MODULE_DEVICE_TABLE(of, rockchip_pdm_match); diff --git a/sound/soc/rockchip/rockchip_pdm.h b/sound/soc/rockchip/rockchip_pdm.h index 8e5bbaf..13bfbc2 100644 --- a/sound/soc/rockchip/rockchip_pdm.h +++ b/sound/soc/rockchip/rockchip_pdm.h @@ -41,6 +41,8 @@ #define PDM_PATH1_EN BIT(28) #define PDM_PATH0_EN BIT(27) #define PDM_HWT_EN BIT(26) +#define PDM_SAMPLERATE_MSK GENMASK(7, 5) +#define PDM_SAMPLERATE(x) ((x) << 5) #define PDM_VDW_MSK (0x1f << 0) #define PDM_VDW(X) ((X - 1) << 0) @@ -66,6 +68,7 @@ #define PDM_CLK_1280FS (0x2 << 0) #define PDM_CLK_2560FS (0x3 << 0) #define PDM_CLK_5120FS (0x4 << 0) +#define PDM_CIC_RATIO_MSK (0x3 << 0) /* PDM HPF CTRL */ #define PDM_HPF_LE BIT(3)