From patchwork Wed Aug 2 08:42:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xingyu Wu X-Patchwork-Id: 710903 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 8822EC001DF for ; Fri, 4 Aug 2023 09:45:03 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 2A770950; Fri, 4 Aug 2023 11:44:11 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 2A770950 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1691142301; bh=wIL9BYzk74UcpjUo3hUNvhoX4mZaa+gQwiWtkaBxHp4=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=ZRvL6uoVpkLkjpTm7wD50bOg7ND0eq7xqZdNaipN+9dUZELCqMmW96BhoeBSrDCAw tpiHllWUv+8VQ8sngtR4uVoND+itXTwW3D9WGttzQR6Vt7pW2mVy4cPSQCn4QphkQm GqLtUQkw7/hsMYv+TgrRiKluSXaPYnAnKlxcZXxE= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 4D068F80580; Fri, 4 Aug 2023 11:43:04 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id A99F6F80578; Fri, 4 Aug 2023 11:43:03 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 302D1F801D5; Wed, 2 Aug 2023 10:43:43 +0200 (CEST) Received: from fd01.gateway.ufhost.com (fd01.gateway.ufhost.com [61.152.239.71]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 0699AF80425 for ; Wed, 2 Aug 2023 10:43:16 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 0699AF80425 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 8C4298308; Wed, 2 Aug 2023 16:43:05 +0800 (CST) Received: from EXMBX061.cuchost.com (172.16.6.61) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Wed, 2 Aug 2023 16:43:05 +0800 Received: from localhost.localdomain (183.27.98.54) by EXMBX061.cuchost.com (172.16.6.61) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Wed, 2 Aug 2023 16:43:04 +0800 From: Xingyu Wu To: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , "Maxim Kochetkov" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , Emil Renner Berthing CC: Jose Abreu , Paul Walmsley , Palmer Dabbelt , Albert Ou , Walker Chen , "Xingyu Wu" , , , , Subject: [PATCH v1 3/5] ASoC: dwc: i2s: Add StarFive JH7110 SoC support Date: Wed, 2 Aug 2023 16:42:59 +0800 Message-ID: <20230802084301.134122-4-xingyu.wu@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230802084301.134122-1-xingyu.wu@starfivetech.com> References: <20230802084301.134122-1-xingyu.wu@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.98.54] X-ClientProxiedBy: EXCAS066.cuchost.com (172.16.6.26) To EXMBX061.cuchost.com (172.16.6.61) X-YovoleRuleAgent: yovoleflag X-MailFrom: xingyu.wu@starfivetech.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1 Message-ID-Hash: GHMH65J542YU7COBN6UBA65A5DRGTLXY X-Message-ID-Hash: GHMH65J542YU7COBN6UBA65A5DRGTLXY X-Mailman-Approved-At: Fri, 04 Aug 2023 09:42:53 +0000 X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Add StarFive JH7110(TX0/TX1/RX channels) SoC support in the designware I2S driver and a flag to check if it is on the JH7110 SoC. These channels need to enable clocks, resets and syscon register on the JH7110 SoC. So add init ops in platform data for the JH7110 SoC to do this. Their resets should be deassert before changing the parent of clocks so these are done in the init ops of platform data. The I2S controllers use DMA controller by platform data on the JH7110 and these settings about snd_dmaengine_dai_dma_data() should be added in the dw_configure_dai_by_pd(). And use dmaengine PCM registration if these do not have IRQ on the JH7110 SoC. Signed-off-by: Xingyu Wu --- include/sound/designware_i2s.h | 3 + sound/soc/dwc/dwc-i2s.c | 316 ++++++++++++++++++++++++++++++--- sound/soc/dwc/local.h | 1 + 3 files changed, 299 insertions(+), 21 deletions(-) diff --git a/include/sound/designware_i2s.h b/include/sound/designware_i2s.h index 80d275b9ae0d..f6803205a9fb 100644 --- a/include/sound/designware_i2s.h +++ b/include/sound/designware_i2s.h @@ -21,6 +21,8 @@ struct i2s_clk_config_data { u32 sample_rate; }; +struct dw_i2s_dev; + struct i2s_platform_data { #define DWC_I2S_PLAY (1 << 0) #define DWC_I2S_RECORD (1 << 1) @@ -42,6 +44,7 @@ struct i2s_platform_data { void *capture_dma_data; bool (*filter)(struct dma_chan *chan, void *slave); int (*i2s_clk_cfg)(struct i2s_clk_config_data *config); + int (*i2s_pd_init)(struct dw_i2s_dev *dev); }; struct i2s_dma_data { diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c index c076090a9864..4dfbd8ddbcf5 100644 --- a/sound/soc/dwc/dwc-i2s.c +++ b/sound/soc/dwc/dwc-i2s.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -198,7 +199,7 @@ static void i2s_start(struct dw_i2s_dev *dev, else i2s_write_reg(dev->i2s_base, IRER, 1); - if (dev->use_pio) + if (dev->use_pio || dev->is_jh7110) i2s_enable_irqs(dev, substream->stream, config->chan_nr); else i2s_enable_dma(dev, substream->stream); @@ -216,7 +217,7 @@ static void i2s_stop(struct dw_i2s_dev *dev, else i2s_write_reg(dev->i2s_base, IRER, 0); - if (dev->use_pio) + if (dev->use_pio || dev->is_jh7110) i2s_disable_irqs(dev, substream->stream, 8); else i2s_disable_dma(dev, substream->stream); @@ -227,6 +228,21 @@ static void i2s_stop(struct dw_i2s_dev *dev, } } +static int dw_i2s_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + struct dw_i2s_dev *dev = snd_soc_dai_get_drvdata(cpu_dai); + + if (dev->is_jh7110) { + 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 void dw_i2s_config(struct dw_i2s_dev *dev, int stream) { u32 ch_reg; @@ -267,6 +283,11 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream, config->data_width = 16; dev->ccr = 0x00; dev->xfer_resolution = 0x02; + /* Set DMA buswidth on JH7110 */ + if (dev->is_jh7110) { + dev->play_dma_data.dt.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + dev->capture_dma_data.dt.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + } break; case SNDRV_PCM_FORMAT_S24_LE: @@ -279,6 +300,11 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream, config->data_width = 32; dev->ccr = 0x10; dev->xfer_resolution = 0x05; + /* Set DMA buswidth on JH7110 */ + if (dev->is_jh7110) { + dev->play_dma_data.dt.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + dev->capture_dma_data.dt.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + } break; default: @@ -444,6 +470,7 @@ static int dw_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, unsigned int tx_mask } static const struct snd_soc_dai_ops dw_i2s_dai_ops = { + .startup = dw_i2s_startup, .hw_params = dw_i2s_hw_params, .prepare = dw_i2s_prepare, .trigger = dw_i2s_trigger, @@ -628,17 +655,43 @@ static int dw_configure_dai_by_pd(struct dw_i2s_dev *dev, if (dev->quirks & DW_I2S_QUIRK_16BIT_IDX_OVERRIDE) idx = 1; - /* Set DMA slaves info */ - dev->play_dma_data.pd.data = pdata->play_dma_data; - dev->capture_dma_data.pd.data = pdata->capture_dma_data; - dev->play_dma_data.pd.addr = res->start + I2S_TXDMA; - dev->capture_dma_data.pd.addr = res->start + I2S_RXDMA; - dev->play_dma_data.pd.max_burst = 16; - dev->capture_dma_data.pd.max_burst = 16; - dev->play_dma_data.pd.addr_width = bus_widths[idx]; - dev->capture_dma_data.pd.addr_width = bus_widths[idx]; - dev->play_dma_data.pd.filter = pdata->filter; - dev->capture_dma_data.pd.filter = pdata->filter; + + if (!dev->is_jh7110) { + /* Set DMA slaves info */ + dev->play_dma_data.pd.data = pdata->play_dma_data; + dev->capture_dma_data.pd.data = pdata->capture_dma_data; + dev->play_dma_data.pd.addr = res->start + I2S_TXDMA; + dev->capture_dma_data.pd.addr = res->start + I2S_RXDMA; + dev->play_dma_data.pd.max_burst = 16; + dev->capture_dma_data.pd.max_burst = 16; + dev->play_dma_data.pd.addr_width = bus_widths[idx]; + dev->capture_dma_data.pd.addr_width = bus_widths[idx]; + dev->play_dma_data.pd.filter = pdata->filter; + dev->capture_dma_data.pd.filter = pdata->filter; + } else { + /* Use platform data and use snd_dmaengine_dai_dma_data on JH7110 SoC */ + u32 comp2 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_2); + u32 idx2; + + if (COMP1_TX_ENABLED(comp1)) { + idx2 = COMP1_TX_WORDSIZE_0(comp1); + + dev->play_dma_data.dt.addr = res->start + I2S_TXDMA; + dev->play_dma_data.dt.addr_width = bus_widths[idx]; + dev->play_dma_data.dt.fifo_size = dev->fifo_th * 2 * + (fifo_width[idx2]) >> 8; + dev->play_dma_data.dt.maxburst = 16; + } + if (COMP1_RX_ENABLED(comp1)) { + idx2 = COMP2_RX_WORDSIZE_0(comp2); + + dev->capture_dma_data.dt.addr = res->start + I2S_RXDMA; + dev->capture_dma_data.dt.addr_width = bus_widths[idx]; + dev->capture_dma_data.dt.fifo_size = dev->fifo_th * 2 * + (fifo_width[idx2] >> 8); + dev->capture_dma_data.dt.maxburst = 16; + } + } return 0; } @@ -680,6 +733,189 @@ static int dw_configure_dai_by_dt(struct dw_i2s_dev *dev, } +/* clocks initialization with master mode on JH7110 SoC */ +static int jh7110_i2s_crg_master_init(struct dw_i2s_dev *dev) +{ + static struct clk_bulk_data clks[] = { + { .id = "mclk" }, + { .id = "mclk_ext" }, + { .id = "mclk_inner" }, + { .id = "apb" }, + { .id = "i2sclk" }, + }; + struct reset_control *resets = devm_reset_control_array_get_exclusive(dev->dev); + int ret; + struct clk *pclk; + struct clk *bclk_mst; + struct clk *mclk; + struct clk *mclk_ext; + struct clk *mclk_inner; + + if (IS_ERR(resets)) + return dev_err_probe(dev->dev, PTR_ERR(resets), "failed to get i2s resets\n"); + + ret = clk_bulk_get(dev->dev, ARRAY_SIZE(clks), clks); + if (ret) + return dev_err_probe(dev->dev, ret, "failed to get i2s clocks\n"); + + mclk = clks[0].clk; + mclk_ext = clks[1].clk; + mclk_inner = clks[2].clk; + pclk = clks[3].clk; + bclk_mst = clks[4].clk; + + ret = clk_prepare_enable(pclk); + if (ret) + goto exit; + + /* Use inner mclk first and avoid uninitialized gpio for external mclk */ + ret = clk_set_parent(mclk, mclk_inner); + if (ret) + goto err_dis_pclk; + + ret = clk_prepare_enable(bclk_mst); + if (ret) + goto err_dis_pclk; + + /* deassert resets before set clock parent */ + ret = reset_control_deassert(resets); + if (ret) + goto err_dis_all; + + /* external clock (12.288MHz) for Audio */ + ret = clk_set_parent(mclk, mclk_ext); + if (ret) + goto err_dis_all; + + /* i2sclk will be got and enabled repeatedly later and should be disabled now. */ + clk_disable_unprepare(bclk_mst); + clk_bulk_put(ARRAY_SIZE(clks), clks); + dev->is_jh7110 = true; + + return 0; + +err_dis_all: + clk_disable_unprepare(bclk_mst); +err_dis_pclk: + clk_disable_unprepare(pclk); +exit: + clk_bulk_put(ARRAY_SIZE(clks), clks); + return ret; +} + +/* clocks initialization with slave mode on JH7110 SoC */ +static int jh7110_i2s_crg_slave_init(struct dw_i2s_dev *dev) +{ + static struct clk_bulk_data clks[] = { + { .id = "mclk" }, + { .id = "mclk_ext" }, + { .id = "apb" }, + { .id = "bclk_ext" }, + { .id = "lrck_ext" }, + { .id = "bclk" }, + { .id = "lrck" }, + { .id = "mclk_inner" }, + { .id = "i2sclk" }, + }; + struct reset_control *resets = devm_reset_control_array_get_exclusive(dev->dev); + int ret; + struct clk *pclk; + struct clk *bclk_mst; + struct clk *bclk_ext; + struct clk *lrck_ext; + struct clk *bclk; + struct clk *lrck; + struct clk *mclk; + struct clk *mclk_ext; + struct clk *mclk_inner; + + if (IS_ERR(resets)) + return dev_err_probe(dev->dev, PTR_ERR(resets), "failed to get i2s resets\n"); + + ret = clk_bulk_get(dev->dev, ARRAY_SIZE(clks), clks); + if (ret) + return dev_err_probe(dev->dev, ret, "failed to get i2s clocks\n"); + + mclk = clks[0].clk; + mclk_ext = clks[1].clk; + pclk = clks[2].clk; + bclk_ext = clks[3].clk; + lrck_ext = clks[4].clk; + bclk = clks[5].clk; + lrck = clks[6].clk; + mclk_inner = clks[7].clk; + bclk_mst = clks[8].clk; + + ret = clk_prepare_enable(pclk); + if (ret) + goto exit; + + ret = clk_set_parent(mclk, mclk_inner); + if (ret) + goto err_dis_pclk; + + ret = clk_prepare_enable(bclk_mst); + if (ret) + goto err_dis_pclk; + + ret = reset_control_deassert(resets); + if (ret) + goto err_dis_all; + + ret = clk_set_parent(bclk, bclk_ext); + if (ret) + goto err_dis_all; + + ret = clk_set_parent(lrck, lrck_ext); + if (ret) + goto err_dis_all; + + ret = clk_set_parent(mclk, mclk_ext); + if (ret) + goto err_dis_all; + + /* i2sclk will be got and enabled repeatedly later and should be disabled now. */ + clk_disable_unprepare(bclk_mst); + clk_bulk_put(ARRAY_SIZE(clks), clks); + dev->is_jh7110 = true; + + return 0; + +err_dis_all: + clk_disable_unprepare(bclk_mst); +err_dis_pclk: + clk_disable_unprepare(pclk); +exit: + clk_bulk_put(ARRAY_SIZE(clks), clks); + return ret; +} + +/* Special syscon initialization about RX channel with slave mode on JH7110 SoC */ +static int jh7110_i2srx_crg_init(struct dw_i2s_dev *dev) +{ + struct regmap *regmap; + unsigned int args[2]; + + regmap = syscon_regmap_lookup_by_phandle_args(dev->dev->of_node, + "starfive,syscon", + 2, args); + if (IS_ERR(regmap)) + return dev_err_probe(dev->dev, PTR_ERR(regmap), "getting the regmap failed\n"); + + /* Enable I2Srx with syscon register, args[0]: offset, args[1]: mask */ + regmap_update_bits(regmap, args[0], args[1], args[1]); + + return jh7110_i2s_crg_slave_init(dev); +} + +static int jh7110_i2stx0_clk_cfg(struct i2s_clk_config_data *config) +{ + struct dw_i2s_dev *dev = container_of(config, struct dw_i2s_dev, config); + u32 bclk_rate = config->sample_rate * 64; + + return clk_set_rate(dev->clk, bclk_rate); +} + static int dw_i2s_dai_probe(struct snd_soc_dai *dai) { struct dw_i2s_dev *dev = snd_soc_dai_get_drvdata(dai); @@ -712,15 +948,25 @@ static int dw_i2s_probe(struct platform_device *pdev) if (IS_ERR(dev->i2s_base)) return PTR_ERR(dev->i2s_base); - dev->reset = devm_reset_control_array_get_optional_shared(&pdev->dev); - if (IS_ERR(dev->reset)) - return PTR_ERR(dev->reset); + dev->dev = &pdev->dev; + dev->is_jh7110 = false; + if (pdata) { + if (pdata->i2s_pd_init) { + ret = pdata->i2s_pd_init(dev); + if (ret) + return ret; + } + } - ret = reset_control_deassert(dev->reset); - if (ret) - return ret; + if (!dev->is_jh7110) { + dev->reset = devm_reset_control_array_get_optional_shared(&pdev->dev); + if (IS_ERR(dev->reset)) + return PTR_ERR(dev->reset); - dev->dev = &pdev->dev; + ret = reset_control_deassert(dev->reset); + if (ret) + return ret; + } irq = platform_get_irq_optional(pdev, 0); if (irq >= 0) { @@ -779,7 +1025,7 @@ static int dw_i2s_probe(struct platform_device *pdev) goto err_clk_disable; } - if (!pdata) { + if (!pdata || dev->is_jh7110) { if (irq >= 0) { ret = dw_pcm_register(pdev); dev->use_pio = true; @@ -821,8 +1067,36 @@ static void dw_i2s_remove(struct platform_device *pdev) } #ifdef CONFIG_OF +static const struct i2s_platform_data jh7110_i2stx0_data = { + .cap = DWC_I2S_PLAY | DW_I2S_MASTER, + .channel = TWO_CHANNEL_SUPPORT, + .snd_fmts = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, + .snd_rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000, + .i2s_clk_cfg = jh7110_i2stx0_clk_cfg, + .i2s_pd_init = jh7110_i2s_crg_master_init, +}; + +static const struct i2s_platform_data jh7110_i2stx1_data = { + .cap = DWC_I2S_PLAY | DW_I2S_SLAVE, + .channel = TWO_CHANNEL_SUPPORT, + .snd_fmts = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, + .snd_rates = SNDRV_PCM_RATE_8000_192000, + .i2s_pd_init = jh7110_i2s_crg_slave_init, +}; + +static const struct i2s_platform_data jh7110_i2srx_data = { + .cap = DWC_I2S_RECORD | DW_I2S_SLAVE, + .channel = TWO_CHANNEL_SUPPORT, + .snd_fmts = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, + .snd_rates = SNDRV_PCM_RATE_8000_192000, + .i2s_pd_init = jh7110_i2srx_crg_init, +}; + static const struct of_device_id dw_i2s_of_match[] = { { .compatible = "snps,designware-i2s", }, + { .compatible = "starfive,jh7110-i2stx0", .data = &jh7110_i2stx0_data, }, + { .compatible = "starfive,jh7110-i2stx1", .data = &jh7110_i2stx1_data,}, + { .compatible = "starfive,jh7110-i2srx", .data = &jh7110_i2srx_data,}, {}, }; diff --git a/sound/soc/dwc/local.h b/sound/soc/dwc/local.h index 4ce96bac2f39..dce88c9ad5f3 100644 --- a/sound/soc/dwc/local.h +++ b/sound/soc/dwc/local.h @@ -123,6 +123,7 @@ struct dw_i2s_dev { u32 fifo_th; u32 l_reg; u32 r_reg; + bool is_jh7110; /* Flag for StarFive JH7110 SoC */ /* data related to DMA transfers b/w i2s and DMAC */ union dw_i2s_snd_dma_data play_dma_data;