From patchwork Mon Aug 14 08:06:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hal Feng X-Patchwork-Id: 135209 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp2595401vqi; Mon, 14 Aug 2023 01:18:07 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGPg5RIWEIrcAa7bHFdbr6C35UTeoCPuQoVhl8ccBftrlRiYs41r22gYgJi/azsMv4lYGkN X-Received: by 2002:a9d:784f:0:b0:6b9:4d79:e08a with SMTP id c15-20020a9d784f000000b006b94d79e08amr8361869otm.32.1692001086731; Mon, 14 Aug 2023 01:18:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1692001086; cv=none; d=google.com; s=arc-20160816; b=bsQdSZzf8IZnFq8TO4OJkE3MxPIDtnQyfXlHnK+Z3hey1IhrFA+zbH8UFLmvfJuKDC CgjvQB2eAj1sJwG619bN34OritC6GU84wS60AC52DWQxRtFT1j8v58z+5k6Do+Ch1ZfB C2fNO6L4JaBLCvlMSuaYIUhe/POOeQ9i5kwaPiY9DqwynB8c9g/jy0+Ig4Fabl2eLYNQ dvAEgPwxq7NpKmjAW6hQnbJNImf1B6VP3UNgaTsteo+L3n0Tqofas1VUok+572Q/1j7t uHpZW5YVRpuYHe8Zyp1mITh1/RGO0dTu57TJO+fng/mqMyB5hcbRXzW6JkSTeztQOOwM Wtlw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=EDBo0H2zOpaRtaRQ0BguQW0jfFNfawydHRlBPzd1+vI=; fh=B0sgEKXwfMtykUNbhiSLA+YtrywmkV+z2OUhNGkLN6s=; b=xI8nrtvzUFE3zi8bdq9P70Hx72SM95yw/XKdSMZZEDgqF9Pqs8D2g6TfyB+GI5td9a oEhZP39m/34sXmstX6IuVcz6k0usda0SEi0tYTpNMEng/C/bvY8wwPrTE46ohx8JRI5a yGIyQ0iNdQqU+54yNkGWjPzqvHFUOluVKu3kreMq7wfIxU096MjFYLcL+tSxNP2usIj/ y3ufxmH93cx4drFjKb6auLZY8Red5XsS+JzGErK7AunwiojFfvZZ5WD9YfHJXWCM9yTO jW3pXzii8MnuRTp5JULiVLrk+ahSuoQIeSY4UD0AXmt8eDqiTWXOMBzXvy+f9NGNogZn krMw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id d1-20020a17090ac24100b00262e650abadsi7838850pjx.117.2023.08.14.01.17.53; Mon, 14 Aug 2023 01:18:06 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234338AbjHNIHE convert rfc822-to-8bit (ORCPT + 99 others); Mon, 14 Aug 2023 04:07:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36950 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233036AbjHNIG3 (ORCPT ); Mon, 14 Aug 2023 04:06:29 -0400 Received: from fd01.gateway.ufhost.com (fd01.gateway.ufhost.com [61.152.239.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A877010F2; Mon, 14 Aug 2023 01:06:22 -0700 (PDT) Received: from EXMBX165.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX165", Issuer "EXMBX165" (not verified)) by fd01.gateway.ufhost.com (Postfix) with ESMTP id 43B3A82CB; Mon, 14 Aug 2023 16:06:21 +0800 (CST) Received: from EXMBX172.cuchost.com (172.16.6.92) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 14 Aug 2023 16:06:21 +0800 Received: from ubuntu.localdomain (183.27.98.20) by EXMBX172.cuchost.com (172.16.6.92) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 14 Aug 2023 16:06:20 +0800 From: Hal Feng To: Mark Brown , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , "Claudiu Beznea" , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Walker Chen , Xingyu Wu , Emil Renner Berthing , Hal Feng CC: , , , Subject: [PATCH v3 1/3] ASoC: dt-bindings: Add StarFive JH7110 PWM-DAC controller Date: Mon, 14 Aug 2023 16:06:16 +0800 Message-ID: <20230814080618.10036-2-hal.feng@starfivetech.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230814080618.10036-1-hal.feng@starfivetech.com> References: <20230814080618.10036-1-hal.feng@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.98.20] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX172.cuchost.com (172.16.6.92) X-YovoleRuleAgent: yovoleflag X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1774191731460603032 X-GMAIL-MSGID: 1774191731460603032 Add bindings for the PWM-DAC controller on the JH7110 RISC-V SoC by StarFive Ltd. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Hal Feng --- .../sound/starfive,jh7110-pwmdac.yaml | 76 +++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/starfive,jh7110-pwmdac.yaml diff --git a/Documentation/devicetree/bindings/sound/starfive,jh7110-pwmdac.yaml b/Documentation/devicetree/bindings/sound/starfive,jh7110-pwmdac.yaml new file mode 100644 index 000000000000..e2b4db6aa2fb --- /dev/null +++ b/Documentation/devicetree/bindings/sound/starfive,jh7110-pwmdac.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/starfive,jh7110-pwmdac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive JH7110 PWM-DAC Controller + +description: + The PWM-DAC Controller uses PWM square wave generators plus RC filters to + form a DAC for audio play in StarFive JH7110 SoC. This audio play controller + supports 16 bit audio format, up to 48K sampling frequency, up to left and + right dual channels. + +maintainers: + - Hal Feng + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + const: starfive,jh7110-pwmdac + + reg: + maxItems: 1 + + clocks: + items: + - description: PWMDAC APB + - description: PWMDAC CORE + + clock-names: + items: + - const: apb + - const: core + + resets: + maxItems: 1 + description: PWMDAC APB + + dmas: + maxItems: 1 + description: TX DMA Channel + + dma-names: + const: tx + + "#sound-dai-cells": + const: 0 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - dmas + - dma-names + - "#sound-dai-cells" + +additionalProperties: false + +examples: + - | + pwmdac@100b0000 { + compatible = "starfive,jh7110-pwmdac"; + reg = <0x100b0000 0x1000>; + clocks = <&syscrg 157>, + <&syscrg 158>; + clock-names = "apb", "core"; + resets = <&syscrg 96>; + dmas = <&dma 22>; + dma-names = "tx"; + #sound-dai-cells = <0>; + }; From patchwork Mon Aug 14 08:06:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hal Feng X-Patchwork-Id: 135213 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp2595901vqi; Mon, 14 Aug 2023 01:19:20 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGQ08tkpJAH3a3qDBpN6G6buQOod+6OxuJp0AhMs+pnxvJ2L+w0oOLbjuu3tPwJUkPDgCL/ X-Received: by 2002:a05:6808:1c8:b0:3a7:36ba:f30b with SMTP id x8-20020a05680801c800b003a736baf30bmr10292211oic.19.1692001159826; Mon, 14 Aug 2023 01:19:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1692001159; cv=none; d=google.com; s=arc-20160816; b=fKcmlbFLxPlrEj2r+DDrm91fIPO56pV+ypA2gl3R/DfIa8dCZ46BYVUer7zg+0a0QO 6OjtnUtU8xK3VxbjCvwFmf7xZKQdNIzmaoZkGzMWrnUHMpo0ZYBTTRv9iW/yWf407q6C bDZxRJvTvDcSAmUmRB3qrJl5C/NHv+97LqBiTIGXnSDdz1UF2ikTVu+FrrqoKeJyl03K 8gB1bVvrDiEDrrbMoUnGp7iQfPtPJUDGirQfNOVMy0lZQDwYOAfP/d2PoXyUiSNOHXny PWt4Yraa01V/vIUCYeslNzsrOjmsFgEE9ES2MQj7u+PHe+WBQ4wiA+0ZN2r0FyDmk9++ NwUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=NiWFNhsfXs0oRJ8oGDB3SrJqAeP5LguO9kBGLxGxvuM=; fh=B0sgEKXwfMtykUNbhiSLA+YtrywmkV+z2OUhNGkLN6s=; b=HE5SJ3hQdfpIvnYPqqtojsTpoSrGmm7lbSUM+PAcxYa/0AejLWbBIp0Ir2pi29xRwU MjP/h3lnK/VPiqz1n4vJvLZ2Lo4EzQav7w+1id9LYcqA4gkHU9ndHSutyrMwaLyP2fLh R7TRZ0upf2pxl3XQIyBWZVVOFWthFaZ+YnKC1EFVWJ6ouSb2k1Ra4EwzNIVAOPNet5IM s6s9NAdJB/myprEKU3NsLk2gCVxVHrbEAMM/qLMQD8BBxMQ8CZm7R7a3tT74V7OpUtai Kz1HK7zDm2FewW8xtE9KNo7w7NfEDZv/ZzBfy3/urysbl0NL4kX1lFXwH2dDiwoKvxem Zblw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. 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Reviewed-by: Walker Chen Signed-off-by: Hal Feng --- MAINTAINERS | 7 + sound/soc/starfive/Kconfig | 9 + sound/soc/starfive/Makefile | 1 + sound/soc/starfive/jh7110_pwmdac.c | 529 +++++++++++++++++++++++++++++ 4 files changed, 546 insertions(+) create mode 100644 sound/soc/starfive/jh7110_pwmdac.c diff --git a/MAINTAINERS b/MAINTAINERS index 0903d87b17cb..686e71822383 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20281,6 +20281,13 @@ S: Supported F: Documentation/devicetree/bindings/mmc/starfive* F: drivers/mmc/host/dw_mmc-starfive.c +STARFIVE JH7110 PWMDAC DRIVER +M: Hal Feng +M: Xingyu Wu +S: Supported +F: Documentation/devicetree/bindings/sound/starfive,jh7110-pwmdac.yaml +F: sound/soc/starfive/jh7110_pwmdac.c + STARFIVE JH7110 TDM DRIVER M: Walker Chen S: Maintained diff --git a/sound/soc/starfive/Kconfig b/sound/soc/starfive/Kconfig index fafb681f8c0a..279ac5c1d309 100644 --- a/sound/soc/starfive/Kconfig +++ b/sound/soc/starfive/Kconfig @@ -7,6 +7,15 @@ config SND_SOC_STARFIVE the Starfive SoCs' Audio interfaces. You will also need to select the audio interfaces to support below. +config SND_SOC_JH7110_PWMDAC + tristate "JH7110 PWM-DAC device driver" + depends on HAVE_CLK && SND_SOC_STARFIVE + select SND_SOC_GENERIC_DMAENGINE_PCM + select SND_SOC_SPDIF + help + Say Y or M if you want to add support for StarFive JH7110 + PWM-DAC driver. + config SND_SOC_JH7110_TDM tristate "JH7110 TDM device driver" depends on HAVE_CLK && SND_SOC_STARFIVE diff --git a/sound/soc/starfive/Makefile b/sound/soc/starfive/Makefile index f7d960211d72..9e958f70ef51 100644 --- a/sound/soc/starfive/Makefile +++ b/sound/soc/starfive/Makefile @@ -1,2 +1,3 @@ # StarFive Platform Support +obj-$(CONFIG_SND_SOC_JH7110_PWMDAC) += jh7110_pwmdac.o obj-$(CONFIG_SND_SOC_JH7110_TDM) += jh7110_tdm.o diff --git a/sound/soc/starfive/jh7110_pwmdac.c b/sound/soc/starfive/jh7110_pwmdac.c new file mode 100644 index 000000000000..033a9064f06b --- /dev/null +++ b/sound/soc/starfive/jh7110_pwmdac.c @@ -0,0 +1,529 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * jh7110_pwmdac.c -- StarFive JH7110 PWM-DAC driver + * + * Copyright (C) 2021-2023 StarFive Technology Co., Ltd. + * + * Authors: Jenny Zhang + * Curry Zhang + * Xingyu Wu + * Hal Feng + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define JH7110_PWMDAC_WDATA 0x00 +#define JH7110_PWMDAC_CTRL 0x04 + #define JH7110_PWMDAC_ENABLE BIT(0) + #define JH7110_PWMDAC_SHIFT BIT(1) + #define JH7110_PWMDAC_DUTY_CYCLE_SHIFT 2 + #define JH7110_PWMDAC_DUTY_CYCLE_MASK GENMASK(3, 2) + #define JH7110_PWMDAC_CNT_N_SHIFT 4 + #define JH7110_PWMDAC_CNT_N_MASK GENMASK(12, 4) + #define JH7110_PWMDAC_DATA_CHANGE BIT(13) + #define JH7110_PWMDAC_DATA_MODE BIT(14) + #define JH7110_PWMDAC_DATA_SHIFT_SHIFT 15 + #define JH7110_PWMDAC_DATA_SHIFT_MASK GENMASK(17, 15) + +enum JH7110_PWMDAC_SHIFT_VAL { + PWMDAC_SHIFT_8 = 0, + PWMDAC_SHIFT_10, +}; + +enum JH7110_PWMDAC_DUTY_CYCLE_VAL { + PWMDAC_CYCLE_LEFT = 0, + PWMDAC_CYCLE_RIGHT, + PWMDAC_CYCLE_CENTER, +}; + +enum JH7110_PWMDAC_CNT_N_VAL { + PWMDAC_SAMPLE_CNT_1 = 1, + PWMDAC_SAMPLE_CNT_2, + PWMDAC_SAMPLE_CNT_3, + PWMDAC_SAMPLE_CNT_512 = 512, /* max */ +}; + +enum JH7110_PWMDAC_DATA_CHANGE_VAL { + NO_CHANGE = 0, + CHANGE, +}; + +enum JH7110_PWMDAC_DATA_MODE_VAL { + UNSIGNED_DATA = 0, + INVERTER_DATA_MSB, +}; + +enum JH7110_PWMDAC_DATA_SHIFT_VAL { + PWMDAC_DATA_LEFT_SHIFT_BIT_0 = 0, + PWMDAC_DATA_LEFT_SHIFT_BIT_1, + PWMDAC_DATA_LEFT_SHIFT_BIT_2, + PWMDAC_DATA_LEFT_SHIFT_BIT_3, + PWMDAC_DATA_LEFT_SHIFT_BIT_4, + PWMDAC_DATA_LEFT_SHIFT_BIT_5, + PWMDAC_DATA_LEFT_SHIFT_BIT_6, + PWMDAC_DATA_LEFT_SHIFT_BIT_7, +}; + +struct jh7110_pwmdac_cfg { + enum JH7110_PWMDAC_SHIFT_VAL shift; + enum JH7110_PWMDAC_DUTY_CYCLE_VAL duty_cycle; + u16 cnt_n; + enum JH7110_PWMDAC_DATA_CHANGE_VAL data_change; + enum JH7110_PWMDAC_DATA_MODE_VAL data_mode; + enum JH7110_PWMDAC_DATA_SHIFT_VAL data_shift; +}; + +struct jh7110_pwmdac_dev { + void __iomem *base; + resource_size_t mapbase; + struct jh7110_pwmdac_cfg cfg; + + struct clk_bulk_data clks[2]; + struct reset_control *rst_apb; + struct device *dev; + struct snd_dmaengine_dai_dma_data play_dma_data; + u32 saved_ctrl; +}; + +static inline void jh7110_pwmdac_write_reg(void __iomem *io_base, int reg, u32 val) +{ + writel(val, io_base + reg); +} + +static inline u32 jh7110_pwmdac_read_reg(void __iomem *io_base, int reg) +{ + return readl(io_base + reg); +} + +static void jh7110_pwmdac_set_enable(struct jh7110_pwmdac_dev *dev, bool enable) +{ + u32 value; + + value = jh7110_pwmdac_read_reg(dev->base, JH7110_PWMDAC_CTRL); + if (enable) + value |= JH7110_PWMDAC_ENABLE; + else + value &= ~JH7110_PWMDAC_ENABLE; + + jh7110_pwmdac_write_reg(dev->base, JH7110_PWMDAC_CTRL, value); +} + +static void jh7110_pwmdac_set_shift(struct jh7110_pwmdac_dev *dev) +{ + u32 value; + + value = jh7110_pwmdac_read_reg(dev->base, JH7110_PWMDAC_CTRL); + if (dev->cfg.shift == PWMDAC_SHIFT_8) + value &= ~JH7110_PWMDAC_SHIFT; + else if (dev->cfg.shift == PWMDAC_SHIFT_10) + value |= JH7110_PWMDAC_SHIFT; + + jh7110_pwmdac_write_reg(dev->base, JH7110_PWMDAC_CTRL, value); +} + +static void jh7110_pwmdac_set_duty_cycle(struct jh7110_pwmdac_dev *dev) +{ + u32 value; + + value = jh7110_pwmdac_read_reg(dev->base, JH7110_PWMDAC_CTRL); + value &= ~JH7110_PWMDAC_DUTY_CYCLE_MASK; + value |= (dev->cfg.duty_cycle & 0x3) << JH7110_PWMDAC_DUTY_CYCLE_SHIFT; + + jh7110_pwmdac_write_reg(dev->base, JH7110_PWMDAC_CTRL, value); +} + +static void jh7110_pwmdac_set_cnt_n(struct jh7110_pwmdac_dev *dev) +{ + u32 value; + + value = jh7110_pwmdac_read_reg(dev->base, JH7110_PWMDAC_CTRL); + value &= ~JH7110_PWMDAC_CNT_N_MASK; + value |= ((dev->cfg.cnt_n - 1) & 0x1ff) << JH7110_PWMDAC_CNT_N_SHIFT; + + jh7110_pwmdac_write_reg(dev->base, JH7110_PWMDAC_CTRL, value); +} + +static void jh7110_pwmdac_set_data_change(struct jh7110_pwmdac_dev *dev) +{ + u32 value; + + value = jh7110_pwmdac_read_reg(dev->base, JH7110_PWMDAC_CTRL); + if (dev->cfg.data_change == NO_CHANGE) + value &= ~JH7110_PWMDAC_DATA_CHANGE; + else if (dev->cfg.data_change == CHANGE) + value |= JH7110_PWMDAC_DATA_CHANGE; + + jh7110_pwmdac_write_reg(dev->base, JH7110_PWMDAC_CTRL, value); +} + +static void jh7110_pwmdac_set_data_mode(struct jh7110_pwmdac_dev *dev) +{ + u32 value; + + value = jh7110_pwmdac_read_reg(dev->base, JH7110_PWMDAC_CTRL); + if (dev->cfg.data_mode == UNSIGNED_DATA) + value &= ~JH7110_PWMDAC_DATA_MODE; + else if (dev->cfg.data_mode == INVERTER_DATA_MSB) + value |= JH7110_PWMDAC_DATA_MODE; + + jh7110_pwmdac_write_reg(dev->base, JH7110_PWMDAC_CTRL, value); +} + +static void jh7110_pwmdac_set_data_shift(struct jh7110_pwmdac_dev *dev) +{ + u32 value; + + value = jh7110_pwmdac_read_reg(dev->base, JH7110_PWMDAC_CTRL); + value &= ~JH7110_PWMDAC_DATA_SHIFT_MASK; + value |= (dev->cfg.data_shift & 0x7) << JH7110_PWMDAC_DATA_SHIFT_SHIFT; + + jh7110_pwmdac_write_reg(dev->base, JH7110_PWMDAC_CTRL, value); +} + +static void jh7110_pwmdac_set(struct jh7110_pwmdac_dev *dev) +{ + jh7110_pwmdac_set_shift(dev); + jh7110_pwmdac_set_duty_cycle(dev); + jh7110_pwmdac_set_cnt_n(dev); + jh7110_pwmdac_set_enable(dev, true); + + jh7110_pwmdac_set_data_change(dev); + jh7110_pwmdac_set_data_mode(dev); + jh7110_pwmdac_set_data_shift(dev); +} + +static void jh7110_pwmdac_stop(struct jh7110_pwmdac_dev *dev) +{ + jh7110_pwmdac_set_enable(dev, false); +} + +static int jh7110_pwmdac_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai_link *dai_link = rtd->dai_link; + + dai_link->trigger_stop = SND_SOC_TRIGGER_ORDER_LDC; + + return 0; +} + +static int jh7110_pwmdac_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct jh7110_pwmdac_dev *dev = dev_get_drvdata(dai->dev); + unsigned long core_clk_rate; + int ret; + + switch (params_rate(params)) { + case 8000: + dev->cfg.cnt_n = PWMDAC_SAMPLE_CNT_3; + core_clk_rate = 6144000; + break; + case 11025: + dev->cfg.cnt_n = PWMDAC_SAMPLE_CNT_2; + core_clk_rate = 5644800; + break; + case 16000: + dev->cfg.cnt_n = PWMDAC_SAMPLE_CNT_3; + core_clk_rate = 12288000; + break; + case 22050: + dev->cfg.cnt_n = PWMDAC_SAMPLE_CNT_1; + core_clk_rate = 5644800; + break; + case 32000: + dev->cfg.cnt_n = PWMDAC_SAMPLE_CNT_1; + core_clk_rate = 8192000; + break; + case 44100: + dev->cfg.cnt_n = PWMDAC_SAMPLE_CNT_1; + core_clk_rate = 11289600; + break; + case 48000: + dev->cfg.cnt_n = PWMDAC_SAMPLE_CNT_1; + core_clk_rate = 12288000; + break; + default: + dev_err(dai->dev, "%d rate not supported\n", + params_rate(params)); + return -EINVAL; + } + + switch (params_channels(params)) { + case 1: + dev->play_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + break; + case 2: + dev->play_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + break; + default: + dev_err(dai->dev, "%d channels not supported\n", + params_channels(params)); + return -EINVAL; + } + + /* + * The clock rate always rounds down when using clk_set_rate() + * so increase the rate a bit + */ + core_clk_rate += 64; + jh7110_pwmdac_set(dev); + + ret = clk_set_rate(dev->clks[1].clk, core_clk_rate); + if (ret) + return dev_err_probe(dai->dev, ret, + "failed to set rate %lu for core clock\n", + core_clk_rate); + + return 0; +} + +static int jh7110_pwmdac_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct jh7110_pwmdac_dev *dev = snd_soc_dai_get_drvdata(dai); + int ret = 0; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + jh7110_pwmdac_set(dev); + break; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + jh7110_pwmdac_stop(dev); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int jh7110_pwmdac_crg_enable(struct jh7110_pwmdac_dev *dev, bool enable) +{ + int ret; + + if (enable) { + ret = clk_bulk_prepare_enable(ARRAY_SIZE(dev->clks), dev->clks); + if (ret) + return dev_err_probe(dev->dev, ret, + "failed to enable pwmdac clocks\n"); + + ret = reset_control_deassert(dev->rst_apb); + if (ret) { + dev_err(dev->dev, "failed to deassert pwmdac apb reset\n"); + goto err_rst_apb; + } + } else { + clk_bulk_disable_unprepare(ARRAY_SIZE(dev->clks), dev->clks); + } + + return 0; + +err_rst_apb: + clk_bulk_disable_unprepare(ARRAY_SIZE(dev->clks), dev->clks); + + return ret; +} + +static int jh7110_pwmdac_dai_probe(struct snd_soc_dai *dai) +{ + struct jh7110_pwmdac_dev *dev = dev_get_drvdata(dai->dev); + + snd_soc_dai_init_dma_data(dai, &dev->play_dma_data, NULL); + snd_soc_dai_set_drvdata(dai, dev); + + return 0; +} + +static const struct snd_soc_dai_ops jh7110_pwmdac_dai_ops = { + .startup = jh7110_pwmdac_startup, + .hw_params = jh7110_pwmdac_hw_params, + .trigger = jh7110_pwmdac_trigger, +}; + +static const struct snd_soc_component_driver jh7110_pwmdac_component = { + .name = "jh7110-pwmdac", +}; + +static struct snd_soc_dai_driver jh7110_pwmdac_dai = { + .name = "jh7110-pwmdac", + .id = 0, + .probe = jh7110_pwmdac_dai_probe, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .ops = &jh7110_pwmdac_dai_ops, +}; + +static int jh7110_pwmdac_runtime_suspend(struct device *dev) +{ + struct jh7110_pwmdac_dev *pwmdac = dev_get_drvdata(dev); + + return jh7110_pwmdac_crg_enable(pwmdac, false); +} + +static int jh7110_pwmdac_runtime_resume(struct device *dev) +{ + struct jh7110_pwmdac_dev *pwmdac = dev_get_drvdata(dev); + + return jh7110_pwmdac_crg_enable(pwmdac, true); +} + +static int jh7110_pwmdac_system_suspend(struct device *dev) +{ + struct jh7110_pwmdac_dev *pwmdac = dev_get_drvdata(dev); + + /* save the CTRL register value */ + pwmdac->saved_ctrl = jh7110_pwmdac_read_reg(pwmdac->base, + JH7110_PWMDAC_CTRL); + return pm_runtime_force_suspend(dev); +} + +static int jh7110_pwmdac_system_resume(struct device *dev) +{ + struct jh7110_pwmdac_dev *pwmdac = dev_get_drvdata(dev); + int ret; + + ret = pm_runtime_force_resume(dev); + if (ret) + return ret; + + /* restore the CTRL register value */ + jh7110_pwmdac_write_reg(pwmdac->base, JH7110_PWMDAC_CTRL, + pwmdac->saved_ctrl); + return 0; +} + +static const struct dev_pm_ops jh7110_pwmdac_pm_ops = { + RUNTIME_PM_OPS(jh7110_pwmdac_runtime_suspend, + jh7110_pwmdac_runtime_resume, NULL) + SYSTEM_SLEEP_PM_OPS(jh7110_pwmdac_system_suspend, + jh7110_pwmdac_system_resume) +}; + +static void jh7110_pwmdac_init_params(struct jh7110_pwmdac_dev *dev) +{ + dev->cfg.shift = PWMDAC_SHIFT_8; + dev->cfg.duty_cycle = PWMDAC_CYCLE_CENTER; + dev->cfg.cnt_n = PWMDAC_SAMPLE_CNT_1; + dev->cfg.data_change = NO_CHANGE; + dev->cfg.data_mode = INVERTER_DATA_MSB; + dev->cfg.data_shift = PWMDAC_DATA_LEFT_SHIFT_BIT_0; + + dev->play_dma_data.addr = dev->mapbase + JH7110_PWMDAC_WDATA; + dev->play_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + dev->play_dma_data.fifo_size = 1; + dev->play_dma_data.maxburst = 16; +} + +static int jh7110_pwmdac_probe(struct platform_device *pdev) +{ + struct jh7110_pwmdac_dev *dev; + struct resource *res; + int ret; + + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + dev->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); + if (IS_ERR(dev->base)) + return PTR_ERR(dev->base); + + dev->mapbase = res->start; + + dev->clks[0].id = "apb"; + dev->clks[1].id = "core"; + + ret = devm_clk_bulk_get(&pdev->dev, ARRAY_SIZE(dev->clks), dev->clks); + if (ret) + return dev_err_probe(&pdev->dev, ret, + "failed to get pwmdac clocks\n"); + + dev->rst_apb = devm_reset_control_get_exclusive(&pdev->dev, NULL); + if (IS_ERR(dev->rst_apb)) + return dev_err_probe(&pdev->dev, PTR_ERR(dev->rst_apb), + "failed to get pwmdac apb reset\n"); + + jh7110_pwmdac_init_params(dev); + + dev->dev = &pdev->dev; + dev_set_drvdata(&pdev->dev, dev); + ret = devm_snd_soc_register_component(&pdev->dev, + &jh7110_pwmdac_component, + &jh7110_pwmdac_dai, 1); + if (ret) + return dev_err_probe(&pdev->dev, ret, "failed to register dai\n"); + + ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); + if (ret) + return dev_err_probe(&pdev->dev, ret, "failed to register pcm\n"); + + pm_runtime_enable(dev->dev); + if (!pm_runtime_enabled(&pdev->dev)) { + ret = jh7110_pwmdac_runtime_resume(&pdev->dev); + if (ret) + goto err_pm_disable; + } + + return 0; + +err_pm_disable: + pm_runtime_disable(&pdev->dev); + + return ret; +} + +static int jh7110_pwmdac_remove(struct platform_device *pdev) +{ + pm_runtime_disable(&pdev->dev); + return 0; +} + +static const struct of_device_id jh7110_pwmdac_of_match[] = { + { .compatible = "starfive,jh7110-pwmdac" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, jh7110_pwmdac_of_match); + +static struct platform_driver jh7110_pwmdac_driver = { + .driver = { + .name = "jh7110-pwmdac", + .of_match_table = jh7110_pwmdac_of_match, + .pm = pm_ptr(&jh7110_pwmdac_pm_ops), + }, + .probe = jh7110_pwmdac_probe, + .remove = jh7110_pwmdac_remove, +}; +module_platform_driver(jh7110_pwmdac_driver); + +MODULE_AUTHOR("Jenny Zhang"); +MODULE_AUTHOR("Curry Zhang"); +MODULE_AUTHOR("Xingyu Wu "); +MODULE_AUTHOR("Hal Feng "); +MODULE_DESCRIPTION("StarFive JH7110 PWM-DAC driver"); +MODULE_LICENSE("GPL"); From patchwork Mon Aug 14 08:06:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hal Feng X-Patchwork-Id: 135226 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp2605304vqi; 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[2620:137:e000::1:20]) by mx.google.com with ESMTP id c8-20020a63d148000000b00563dd9b6da6si7657065pgj.718.2023.08.14.01.43.49; Mon, 14 Aug 2023 01:44:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234433AbjHNIHL convert rfc822-to-8bit (ORCPT + 99 others); Mon, 14 Aug 2023 04:07:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234333AbjHNIGb (ORCPT ); Mon, 14 Aug 2023 04:06:31 -0400 Received: from ex01.ufhost.com (ex01.ufhost.com [61.152.239.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 064EB10F0; Mon, 14 Aug 2023 01:06:23 -0700 (PDT) Received: from EXMBX165.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX165", Issuer "EXMBX165" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id A1D7E24E225; Mon, 14 Aug 2023 16:06:22 +0800 (CST) Received: from EXMBX172.cuchost.com (172.16.6.92) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 14 Aug 2023 16:06:22 +0800 Received: from ubuntu.localdomain (183.27.98.20) by EXMBX172.cuchost.com (172.16.6.92) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 14 Aug 2023 16:06:21 +0800 From: Hal Feng To: Mark Brown , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , "Claudiu Beznea" , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Walker Chen , Xingyu Wu , Emil Renner Berthing , Hal Feng CC: , , , Subject: [PATCH v3 3/3] riscv: dts: starfive: Add JH7110 PWM-DAC support Date: Mon, 14 Aug 2023 16:06:18 +0800 Message-ID: <20230814080618.10036-4-hal.feng@starfivetech.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230814080618.10036-1-hal.feng@starfivetech.com> References: <20230814080618.10036-1-hal.feng@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.98.20] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX172.cuchost.com (172.16.6.92) X-YovoleRuleAgent: yovoleflag X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1774193362408175430 X-GMAIL-MSGID: 1774193362408175430 Add PWM-DAC support for StarFive JH7110 SoC. Reviewed-by: Walker Chen Signed-off-by: Hal Feng --- .../jh7110-starfive-visionfive-2.dtsi | 49 +++++++++++++++++++ arch/riscv/boot/dts/starfive/jh7110.dtsi | 13 +++++ 2 files changed, 62 insertions(+) diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi index d2f3b9eb859b..0e98fcba3203 100644 --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi @@ -38,6 +38,33 @@ gpio-restart { gpios = <&sysgpio 35 GPIO_ACTIVE_HIGH>; priority = <224>; }; + + pwmdac_codec: pwmdac-codec { + compatible = "linux,spdif-dit"; + #sound-dai-cells = <0>; + }; + + sound-pwmdac { + compatible = "simple-audio-card"; + simple-audio-card,name = "StarFive-PWMDAC-Sound-Card"; + #address-cells = <1>; + #size-cells = <0>; + + simple-audio-card,dai-link@0 { + reg = <0>; + format = "left_j"; + bitclock-master = <&sndcpu0>; + frame-master = <&sndcpu0>; + + sndcpu0: cpu { + sound-dai = <&pwmdac>; + }; + + codec { + sound-dai = <&pwmdac_codec>; + }; + }; + }; }; &dvp_clk { @@ -185,6 +212,12 @@ &i2c6 { status = "okay"; }; +&pwmdac { + pinctrl-names = "default"; + pinctrl-0 = <&pwmdac_pins>; + status = "okay"; +}; + &qspi { #address-cells = <1>; #size-cells = <0>; @@ -290,6 +323,22 @@ GPOEN_SYS_I2C6_DATA, }; }; + pwmdac_pins: pwmdac-0 { + pwmdac-pins { + pinmux = , + ; + bias-disable; + drive-strength = <2>; + input-disable; + input-schmitt-disable; + slew-rate = <0>; + }; + }; + spi0_pins: spi0-0 { mosi-pins { pinmux = ; + clocks = <&syscrg JH7110_SYSCLK_PWMDAC_APB>, + <&syscrg JH7110_SYSCLK_PWMDAC_CORE>; + clock-names = "apb", "core"; + resets = <&syscrg JH7110_SYSRST_PWMDAC_APB>; + dmas = <&dma 22>; + dma-names = "tx"; + #sound-dai-cells = <0>; + status = "disabled"; + }; + usb0: usb@10100000 { compatible = "starfive,jh7110-usb"; ranges = <0x0 0x0 0x10100000 0x100000>;