From patchwork Sat Aug 19 12:48:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Code Kipper X-Patchwork-Id: 9910505 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F2373600C8 for ; Sat, 19 Aug 2017 12:51:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E2A9228D7E for ; Sat, 19 Aug 2017 12:51:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D77FB28D8A; Sat, 19 Aug 2017 12:51:02 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,RCVD_IN_SORBS_SPAM, T_DKIM_INVALID autolearn=no version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 93F7828D7E for ; Sat, 19 Aug 2017 12:51:01 +0000 (UTC) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 0E528267341; Sat, 19 Aug 2017 14:49:05 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id E6115267339; Sat, 19 Aug 2017 14:49:01 +0200 (CEST) Received: from mail-lf0-f68.google.com (mail-lf0-f68.google.com [209.85.215.68]) by alsa0.perex.cz (Postfix) with ESMTP id AB5AF2672B9 for ; Sat, 19 Aug 2017 14:48:57 +0200 (CEST) Received: by mail-lf0-f68.google.com with SMTP id t128so7778028lff.3 for ; Sat, 19 Aug 2017 05:48:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=FAQUSPtQKwXTOCjpmfu1RlqGyIUgf3VcLmBZ5ruJyQA=; b=ClgGdCuOFw601cPy8JQyXWHkmjE7QBaQKZpH6B2/waOUpbz0p8huepnoWVGXypG0LX aiTFnhbMoeGerrPkODvPsWysL6cKb24Jw29PPXJY+H8P44LZWQ+rVM7QaJvHHh7JxETK picqF06jMoKT0zf0dWdcM8H6442hT6E30q796bZn/HcgruwDE6vH384E99DN/+am446C rDvrS92DphlAomWK0xzxE3ewYgyN0VWZBJP17CDaPmk0RUfkNizrXEVHRsLVKuI/pYjQ mobhZ/Ta8X9f2k/rUYKnrVRMvB0XhPT/mddNU3zRxz3H6b/4ZTKExE6+5pRjzH04br2p UhWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=FAQUSPtQKwXTOCjpmfu1RlqGyIUgf3VcLmBZ5ruJyQA=; b=pYZK7lohyXSctHm5jb1dyveKSxiJeDtL5dcOvdzTU1GFdoGyTkdcqZnWlyYKn+hO7m khN4ZxNkVNdt70nLJDUUm/65QnhzNHEP3rw7qbLD+b2odb+mNKAZjbcw5Ciq6uEe8vJX 1eHGDyzCJSQhVleIHX5dOdWoAARenGx+T1LG75AXTbGMarYvt3rsuMWHIeOsOXYWdu4n o8MY73rUdd99Gl7VBTRdepCjj1OnN0LPqP5cfZ3WXl49Imm9yFEpIBJ5Tix07xGpzzOq H1Nd4IQX252D3b1PfKcPo/dcL+gWuxfrGuV2RAd/LNppkSFNAsrCIdMspQO87E350o6K 4x7A== X-Gm-Message-State: AHYfb5hVLtQDYercWHjQEdEifc5Ab0tSbOhNp0nblniUFJ0dM4cVrDil yXpoDJ/612CMkQ== X-Received: by 10.46.83.25 with SMTP id h25mr4930406ljb.46.1503146936990; Sat, 19 Aug 2017 05:48:56 -0700 (PDT) Received: from localhost.localdomain (c80-217-9-219.bredband.comhem.se. [80.217.9.219]) by smtp.gmail.com with ESMTPSA id g68sm1558470ljb.58.2017.08.19.05.48.55 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 19 Aug 2017 05:48:56 -0700 (PDT) From: codekipper@gmail.com To: maxime.ripard@free-electrons.com Date: Sat, 19 Aug 2017 14:48:39 +0200 Message-Id: <20170819124839.4034-9-codekipper@gmail.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170819124839.4034-1-codekipper@gmail.com> References: <20170819124839.4034-1-codekipper@gmail.com> Cc: alsa-devel@alsa-project.org, Marcus Cooper , lgirdwood@gmail.com, linux-kernel@vger.kernel.org, be17068@iperbole.bo.it, linux-sunxi@googlegroups.com, broonie@kernel.org, linux-arm-kernel@lists.infradead.org Subject: [alsa-devel] [PATCH v5 8/8] ASoC: sun4i-i2s: Add support for H3 X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Marcus Cooper The sun8i-h3 introduces a lot of changes to the i2s block such as different register locations, extended clock division and more operational modes. As we have to consider the earlier implementation then these changes need to be isolated. None of the new functionality has been implemented yet, the driver has just been expanded to allow it work on the H3 SoC. Signed-off-by: Marcus Cooper Reviewed-by: Chen-Yu Tsai --- .../devicetree/bindings/sound/sun4i-i2s.txt | 2 + sound/soc/sunxi/sun4i-i2s.c | 176 ++++++++++++++++++++- 2 files changed, 176 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt index ee21da865771..fc5da6080759 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt @@ -8,6 +8,7 @@ Required properties: - compatible: should be one of the following: - "allwinner,sun4i-a10-i2s" - "allwinner,sun6i-a31-i2s" + - "allwinner,sun8i-h3-i2s" - reg: physical base address of the controller and length of memory mapped region. - interrupts: should contain the I2S interrupt. @@ -22,6 +23,7 @@ Required properties: Required properties for the following compatibles: - "allwinner,sun6i-a31-i2s" + - "allwinner,sun8i-h3-i2s" - resets: phandle to the reset line for this codec Example: diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index 19d50ca10d1f..04f92583a969 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -92,11 +92,41 @@ #define SUN4I_I2S_RX_CHAN_SEL_REG 0x38 #define SUN4I_I2S_RX_CHAN_MAP_REG 0x3c +/* Defines required for sun8i-h3 support */ +#define SUN8I_I2S_CTRL_BCLK_OUT BIT(18) +#define SUN8I_I2S_CTRL_LRCK_OUT BIT(17) + +#define SUN8I_I2S_FMT0_LRCK_PERIOD_MASK GENMASK(17, 8) +#define SUN8I_I2S_FMT0_LRCK_PERIOD(period) ((period - 1) << 8) + +#define SUN8I_I2S_INT_STA_REG 0x0c +#define SUN8I_I2S_FIFO_TX_REG 0x20 + +#define SUN8I_I2S_CHAN_CFG_REG 0x30 +#define SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM_MASK GENMASK(6, 4) +#define SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM(chan) (chan - 1) +#define SUN8I_I2S_CHAN_CFG_TX_SLOT_NUM_MASK GENMASK(2, 0) +#define SUN8I_I2S_CHAN_CFG_TX_SLOT_NUM(chan) (chan - 1) + +#define SUN8I_I2S_TX_CHAN_MAP_REG 0x44 +#define SUN8I_I2S_TX_CHAN_SEL_REG 0x34 +#define SUN8I_I2S_TX_CHAN_OFFSET_MASK GENMASK(13, 11) +#define SUN8I_I2S_TX_CHAN_OFFSET(offset) (offset << 12) +#define SUN8I_I2S_TX_CHAN_EN_MASK GENMASK(11, 4) +#define SUN8I_I2S_TX_CHAN_EN(num_chan) (((1 << num_chan) - 1) << 4) + +#define SUN8I_I2S_RX_CHAN_SEL_REG 0x54 +#define SUN8I_I2S_RX_CHAN_MAP_REG 0x58 + /** * struct sun4i_i2s_quirks - Differences between SoC variants. * * @has_reset: SoC needs reset deasserted. * @has_slave_select_bit: SoC has a bit to enable slave mode. + * @has_fmt_set_lrck_period: SoC requires lrclk period to be set. + * @has_chcfg: tx and rx slot number need to be set. + * @has_chsel_tx_chen: SoC requires that the tx channels are enabled. + * @has_chsel_offset: SoC uses offset for selecting dai operational mode. * @reg_offset_txdata: offset of the tx fifo. * @sun4i_i2s_regmap: regmap config to use. * @mclk_offset: Value by which mclkdiv needs to be adjusted. @@ -116,6 +146,10 @@ struct sun4i_i2s_quirks { bool has_reset; bool has_slave_select_bit; + bool has_fmt_set_lrck_period; + bool has_chcfg; + bool has_chsel_tx_chen; + bool has_chsel_offset; unsigned int reg_offset_txdata; /* TX FIFO */ const struct regmap_config *sun4i_i2s_regmap; unsigned int mclk_offset; @@ -173,6 +207,7 @@ static const struct sun4i_i2s_clk_div sun4i_i2s_bclk_div[] = { { .div = 8, .val = 3 }, { .div = 12, .val = 4 }, { .div = 16, .val = 5 }, + /* TODO - extend divide ratio supported by newer SoCs */ }; static const struct sun4i_i2s_clk_div sun4i_i2s_mclk_div[] = { @@ -184,6 +219,7 @@ static const struct sun4i_i2s_clk_div sun4i_i2s_mclk_div[] = { { .div = 12, .val = 5 }, { .div = 16, .val = 6 }, { .div = 24, .val = 7 }, + /* TODO - extend divide ratio supported by newer SoCs */ }; static int sun4i_i2s_get_bclk_div(struct sun4i_i2s *i2s, @@ -295,6 +331,12 @@ static int sun4i_i2s_set_clk_rate(struct sun4i_i2s *i2s, regmap_field_write(i2s->field_clkdiv_mclk_en, 1); + /* Set sync period */ + if (i2s->variant->has_fmt_set_lrck_period) + regmap_update_bits(i2s->regmap, SUN4I_I2S_FMT0_REG, + SUN8I_I2S_FMT0_LRCK_PERIOD_MASK, + SUN8I_I2S_FMT0_LRCK_PERIOD(32)); + return 0; } @@ -303,12 +345,22 @@ 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); - int sr, wss; + int sr, wss, channels; u32 width; - if (params_channels(params) != 2) + channels = params_channels(params); + if (channels != 2) return -EINVAL; + if (i2s->variant->has_chcfg) { + regmap_update_bits(i2s->regmap, SUN8I_I2S_CHAN_CFG_REG, + SUN8I_I2S_CHAN_CFG_TX_SLOT_NUM_MASK, + SUN8I_I2S_CHAN_CFG_TX_SLOT_NUM(channels)); + regmap_update_bits(i2s->regmap, SUN8I_I2S_CHAN_CFG_REG, + SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM_MASK, + SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM(channels)); + } + /* Map the channels for playback and capture */ regmap_field_write(i2s->field_txchanmap, 0x76543210); regmap_field_write(i2s->field_rxchanmap, 0x00003210); @@ -320,6 +372,11 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, regmap_field_write(i2s->field_rxchansel, SUN4I_I2S_CHAN_SEL(params_channels(params))); + if (i2s->variant->has_chsel_tx_chen) + regmap_update_bits(i2s->regmap, SUN8I_I2S_TX_CHAN_SEL_REG, + SUN8I_I2S_TX_CHAN_EN_MASK, + SUN8I_I2S_TX_CHAN_EN(channels)); + switch (params_physical_width(params)) { case 16: width = DMA_SLAVE_BUSWIDTH_2_BYTES; @@ -352,6 +409,7 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); u32 val; + u32 offset = 0; u32 bclk_polarity = SUN4I_I2S_FMT0_POLARITY_NORMAL; u32 lrclk_polarity = SUN4I_I2S_FMT0_POLARITY_NORMAL; @@ -359,6 +417,7 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: val = SUN4I_I2S_FMT0_FMT_I2S; + offset = 1; break; case SND_SOC_DAIFMT_LEFT_J: val = SUN4I_I2S_FMT0_FMT_LEFT_J; @@ -370,6 +429,21 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return -EINVAL; } + if (i2s->variant->has_chsel_offset) { + /* + * offset being set indicates that we're connected to an i2s + * device, however offset is only used on the sun8i block and + * i2s shares the same setting with the LJ format. Increment + * val so that the bit to value to write is correct. + */ + if (offset > 0) + val++; + /* blck offset determines whether i2s or LJ */ + regmap_update_bits(i2s->regmap, SUN8I_I2S_TX_CHAN_SEL_REG, + SUN8I_I2S_TX_CHAN_OFFSET_MASK, + SUN8I_I2S_TX_CHAN_OFFSET(offset)); + } + regmap_field_write(i2s->field_fmt_mode, val); /* DAI clock polarity */ @@ -413,6 +487,29 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, SUN4I_I2S_CTRL_MODE_MASK, val); + } else { + /* + * The newer i2s block does not have a slave select bit, + * instead the clk pins are configured as inputs. + */ + /* DAI clock master masks */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + /* BCLK and LRCLK master */ + val = SUN8I_I2S_CTRL_BCLK_OUT | + SUN8I_I2S_CTRL_LRCK_OUT; + break; + case SND_SOC_DAIFMT_CBM_CFM: + /* BCLK and LRCLK slave */ + val = 0; + break; + default: + return -EINVAL; + } + regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, + SUN8I_I2S_CTRL_BCLK_OUT | + SUN8I_I2S_CTRL_LRCK_OUT, + val); } /* Set significant bits in our FIFOs */ @@ -653,6 +750,27 @@ static bool sun4i_i2s_volatile_reg(struct device *dev, unsigned int reg) } } +static bool sun8i_i2s_rd_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case SUN8I_I2S_FIFO_TX_REG: + return false; + + default: + return true; + } +} + +static bool sun8i_i2s_volatile_reg(struct device *dev, unsigned int reg) +{ + if (reg == SUN8I_I2S_INT_STA_REG) + return true; + if (reg == SUN8I_I2S_FIFO_TX_REG) + return false; + + return sun4i_i2s_volatile_reg(dev, reg); +} + static const struct reg_default sun4i_i2s_reg_defaults[] = { { SUN4I_I2S_CTRL_REG, 0x00000000 }, { SUN4I_I2S_FMT0_REG, 0x0000000c }, @@ -666,6 +784,20 @@ static const struct reg_default sun4i_i2s_reg_defaults[] = { { SUN4I_I2S_RX_CHAN_MAP_REG, 0x00003210 }, }; +static const struct reg_default sun8i_i2s_reg_defaults[] = { + { SUN4I_I2S_CTRL_REG, 0x00060000 }, + { SUN4I_I2S_FMT0_REG, 0x00000033 }, + { SUN4I_I2S_FMT1_REG, 0x00000030 }, + { SUN4I_I2S_FIFO_CTRL_REG, 0x000400f0 }, + { SUN4I_I2S_DMA_INT_CTRL_REG, 0x00000000 }, + { SUN4I_I2S_CLK_DIV_REG, 0x00000000 }, + { SUN8I_I2S_CHAN_CFG_REG, 0x00000000 }, + { SUN8I_I2S_TX_CHAN_SEL_REG, 0x00000000 }, + { SUN8I_I2S_TX_CHAN_MAP_REG, 0x00000000 }, + { SUN8I_I2S_RX_CHAN_SEL_REG, 0x00000000 }, + { SUN8I_I2S_RX_CHAN_MAP_REG, 0x00000000 }, +}; + static const struct regmap_config sun4i_i2s_regmap_config = { .reg_bits = 32, .reg_stride = 4, @@ -680,6 +812,19 @@ static const struct regmap_config sun4i_i2s_regmap_config = { .volatile_reg = sun4i_i2s_volatile_reg, }; +static const struct regmap_config sun8i_i2s_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = SUN8I_I2S_RX_CHAN_MAP_REG, + .cache_type = REGCACHE_FLAT, + .reg_defaults = sun8i_i2s_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(sun8i_i2s_reg_defaults), + .writeable_reg = sun4i_i2s_wr_reg, + .readable_reg = sun8i_i2s_rd_reg, + .volatile_reg = sun8i_i2s_volatile_reg, +}; + static int sun4i_i2s_runtime_resume(struct device *dev) { struct sun4i_i2s *i2s = dev_get_drvdata(dev); @@ -752,6 +897,29 @@ static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = { .field_rxchansel = REG_FIELD(SUN4I_I2S_RX_CHAN_SEL_REG, 0, 2), }; +static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = { + .has_reset = true, + .reg_offset_txdata = SUN8I_I2S_FIFO_TX_REG, + .sun4i_i2s_regmap = &sun8i_i2s_regmap_config, + .mclk_offset = 1, + .bclk_offset = 2, + .fmt_offset = 3, + .has_fmt_set_lrck_period = true, + .has_chcfg = true, + .has_chsel_tx_chen = true, + .has_chsel_offset = true, + .field_clkdiv_mclk_en = REG_FIELD(SUN4I_I2S_CLK_DIV_REG, 8, 8), + .field_fmt_wss = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 2), + .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 6), + .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7), + .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 19, 19), + .field_fmt_mode = REG_FIELD(SUN4I_I2S_CTRL_REG, 4, 5), + .field_txchanmap = REG_FIELD(SUN8I_I2S_TX_CHAN_MAP_REG, 0, 31), + .field_rxchanmap = REG_FIELD(SUN8I_I2S_RX_CHAN_MAP_REG, 0, 31), + .field_txchansel = REG_FIELD(SUN8I_I2S_TX_CHAN_SEL_REG, 0, 2), + .field_rxchansel = REG_FIELD(SUN8I_I2S_RX_CHAN_SEL_REG, 0, 2), +}; + static int sun4i_i2s_init_regmap_fields(struct device *dev, struct sun4i_i2s *i2s) { @@ -952,6 +1120,10 @@ static const struct of_device_id sun4i_i2s_match[] = { .compatible = "allwinner,sun6i-a31-i2s", .data = &sun6i_a31_i2s_quirks, }, + { + .compatible = "allwinner,sun8i-h3-i2s", + .data = &sun8i_h3_i2s_quirks, + }, {} }; MODULE_DEVICE_TABLE(of, sun4i_i2s_match);