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When using DSP_A or DSP_B, LRCK inversion is not supported. The register bit is repurposed to select between DSP_A and DSP_B. Extend the driver to support this. Signed-off-by: Samuel Holland --- sound/soc/sunxi/sun8i-codec.c | 57 +++++++++++++++++++++++------------ 1 file changed, 37 insertions(+), 20 deletions(-) diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c index 0b713b2a2028..506420fb355c 100644 --- a/sound/soc/sunxi/sun8i-codec.c +++ b/sound/soc/sunxi/sun8i-codec.c @@ -39,18 +39,17 @@ #define SUN8I_MOD_RST_CTL_AIF1 15 #define SUN8I_MOD_RST_CTL_ADC 3 #define SUN8I_MOD_RST_CTL_DAC 2 #define SUN8I_SYS_SR_CTRL 0x018 #define SUN8I_SYS_SR_CTRL_AIF1_FS 12 #define SUN8I_SYS_SR_CTRL_AIF2_FS 8 #define SUN8I_AIF1CLK_CTRL 0x040 #define SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD 15 -#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV 14 -#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV 13 +#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV 13 #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV 9 #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV 6 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ 4 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16 (1 << 4) #define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT 2 #define SUN8I_AIF1_ADCDAT_CTRL 0x044 #define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0L_ENA 15 #define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0R_ENA 14 @@ -85,16 +84,17 @@ #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R 10 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR 9 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR 8 #define SUN8I_SYSCLK_CTL_AIF1CLK_SRC_MASK GENMASK(9, 8) #define SUN8I_SYSCLK_CTL_AIF2CLK_SRC_MASK GENMASK(5, 4) #define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK GENMASK(15, 12) #define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8) +#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK GENMASK(14, 13) #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9) #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6) #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4) #define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK GENMASK(3, 2) enum { AIF1, NAIFS @@ -168,17 +168,17 @@ static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params) default: return -EINVAL; } } static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct sun8i_codec *scodec = snd_soc_dai_get_drvdata(dai); - u32 format, value; + u32 format, invert, value; /* clock masters */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */ value = 0x1; break; case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */ value = 0x0; @@ -197,55 +197,72 @@ static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) break; case SND_SOC_DAIFMT_LEFT_J: format = 0x1; break; case SND_SOC_DAIFMT_RIGHT_J: format = 0x2; break; case SND_SOC_DAIFMT_DSP_A: + format = 0x3; + invert = 0x0; /* Set LRCK_INV to 0 */ + break; case SND_SOC_DAIFMT_DSP_B: format = 0x3; + invert = 0x1; /* Set LRCK_INV to 1 */ break; default: return -EINVAL; } regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK, format << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT); /* clock inversion */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: /* Normal */ value = 0x0; break; - case SND_SOC_DAIFMT_IB_IF: /* Inversion */ + case SND_SOC_DAIFMT_NB_IF: /* Inverted LRCK */ value = 0x1; break; + case SND_SOC_DAIFMT_IB_NF: /* Inverted BCLK */ + value = 0x2; + break; + case SND_SOC_DAIFMT_IB_IF: /* Both inverted */ + value = 0x3; + break; default: return -EINVAL; } - regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, - BIT(SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV), - value << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV); - /* - * It appears that the DAI and the codec in the A33 SoC don't - * share the same polarity for the LRCK signal when they mean - * 'normal' and 'inverted' in the datasheet. - * - * Since the DAI here is our regular i2s driver that have been - * tested with way more codecs than just this one, it means - * that the codec probably gets it backward, and we have to - * invert the value here. - */ - value ^= scodec->quirks->lrck_inversion; + if (format == 0x3) { + /* Inverted LRCK is not available in DSP mode. */ + if (value & BIT(0)) + return -EINVAL; + + /* Instead, the bit selects between DSP A/B formats. */ + value |= invert; + } else { + /* + * It appears that the DAI and the codec in the A33 SoC don't + * share the same polarity for the LRCK signal when they mean + * 'normal' and 'inverted' in the datasheet. + * + * Since the DAI here is our regular i2s driver that have been + * tested with way more codecs than just this one, it means + * that the codec probably gets it backward, and we have to + * invert the value here. + */ + value ^= scodec->quirks->lrck_inversion; + } + regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, - BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV), - value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV); + SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK, + value << SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV); return 0; } struct sun8i_codec_clk_div { u8 div; u8 val; }; -- 2.26.2 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 6A941C4363D for ; 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Wed, 30 Sep 2020 22:11:54 -0400 (EDT) From: Samuel Holland To: Mark Brown , Liam Girdwood , Maxime Ripard , Chen-Yu Tsai , Jaroslav Kysela , Takashi Iwai Subject: [PATCH 11/25] ASoC: sun8i-codec: Enable all supported clock inversions Date: Wed, 30 Sep 2020 21:11:34 -0500 Message-Id: <20201001021148.15852-12-samuel@sholland.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201001021148.15852-1-samuel@sholland.org> References: <20201001021148.15852-1-samuel@sholland.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: Ondrej Jirman , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Samuel Holland 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" When using the I2S, LEFT_J, or RIGHT_J format, the hardware supports independent BCLK and LRCK inversion control. When using DSP_A or DSP_B, LRCK inversion is not supported. The register bit is repurposed to select between DSP_A and DSP_B. Extend the driver to support this. Signed-off-by: Samuel Holland --- sound/soc/sunxi/sun8i-codec.c | 57 +++++++++++++++++++++++------------ 1 file changed, 37 insertions(+), 20 deletions(-) diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c index 0b713b2a2028..506420fb355c 100644 --- a/sound/soc/sunxi/sun8i-codec.c +++ b/sound/soc/sunxi/sun8i-codec.c @@ -39,18 +39,17 @@ #define SUN8I_MOD_RST_CTL_AIF1 15 #define SUN8I_MOD_RST_CTL_ADC 3 #define SUN8I_MOD_RST_CTL_DAC 2 #define SUN8I_SYS_SR_CTRL 0x018 #define SUN8I_SYS_SR_CTRL_AIF1_FS 12 #define SUN8I_SYS_SR_CTRL_AIF2_FS 8 #define SUN8I_AIF1CLK_CTRL 0x040 #define SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD 15 -#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV 14 -#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV 13 +#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV 13 #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV 9 #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV 6 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ 4 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16 (1 << 4) #define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT 2 #define SUN8I_AIF1_ADCDAT_CTRL 0x044 #define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0L_ENA 15 #define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0R_ENA 14 @@ -85,16 +84,17 @@ #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R 10 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR 9 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR 8 #define SUN8I_SYSCLK_CTL_AIF1CLK_SRC_MASK GENMASK(9, 8) #define SUN8I_SYSCLK_CTL_AIF2CLK_SRC_MASK GENMASK(5, 4) #define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK GENMASK(15, 12) #define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8) +#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK GENMASK(14, 13) #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9) #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6) #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4) #define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK GENMASK(3, 2) enum { AIF1, NAIFS @@ -168,17 +168,17 @@ static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params) default: return -EINVAL; } } static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct sun8i_codec *scodec = snd_soc_dai_get_drvdata(dai); - u32 format, value; + u32 format, invert, value; /* clock masters */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */ value = 0x1; break; case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */ value = 0x0; @@ -197,55 +197,72 @@ static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) break; case SND_SOC_DAIFMT_LEFT_J: format = 0x1; break; case SND_SOC_DAIFMT_RIGHT_J: format = 0x2; break; case SND_SOC_DAIFMT_DSP_A: + format = 0x3; + invert = 0x0; /* Set LRCK_INV to 0 */ + break; case SND_SOC_DAIFMT_DSP_B: format = 0x3; + invert = 0x1; /* Set LRCK_INV to 1 */ break; default: return -EINVAL; } regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK, format << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT); /* clock inversion */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: /* Normal */ value = 0x0; break; - case SND_SOC_DAIFMT_IB_IF: /* Inversion */ + case SND_SOC_DAIFMT_NB_IF: /* Inverted LRCK */ value = 0x1; break; + case SND_SOC_DAIFMT_IB_NF: /* Inverted BCLK */ + value = 0x2; + break; + case SND_SOC_DAIFMT_IB_IF: /* Both inverted */ + value = 0x3; + break; default: return -EINVAL; } - regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, - BIT(SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV), - value << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV); - /* - * It appears that the DAI and the codec in the A33 SoC don't - * share the same polarity for the LRCK signal when they mean - * 'normal' and 'inverted' in the datasheet. - * - * Since the DAI here is our regular i2s driver that have been - * tested with way more codecs than just this one, it means - * that the codec probably gets it backward, and we have to - * invert the value here. - */ - value ^= scodec->quirks->lrck_inversion; + if (format == 0x3) { + /* Inverted LRCK is not available in DSP mode. */ + if (value & BIT(0)) + return -EINVAL; + + /* Instead, the bit selects between DSP A/B formats. */ + value |= invert; + } else { + /* + * It appears that the DAI and the codec in the A33 SoC don't + * share the same polarity for the LRCK signal when they mean + * 'normal' and 'inverted' in the datasheet. + * + * Since the DAI here is our regular i2s driver that have been + * tested with way more codecs than just this one, it means + * that the codec probably gets it backward, and we have to + * invert the value here. + */ + value ^= scodec->quirks->lrck_inversion; + } + regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, - BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV), - value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV); + SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK, + value << SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV); return 0; } struct sun8i_codec_clk_div { u8 div; u8 val; }; -- 2.26.2 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 47D40C4363D for ; 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Wed, 30 Sep 2020 22:11:54 -0400 (EDT) From: Samuel Holland To: Mark Brown , Liam Girdwood , Maxime Ripard , Chen-Yu Tsai , Jaroslav Kysela , Takashi Iwai Subject: [PATCH 11/25] ASoC: sun8i-codec: Enable all supported clock inversions Date: Wed, 30 Sep 2020 21:11:34 -0500 Message-Id: <20201001021148.15852-12-samuel@sholland.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201001021148.15852-1-samuel@sholland.org> References: <20201001021148.15852-1-samuel@sholland.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200930_221159_784515_86AA06DD X-CRM114-Status: GOOD ( 18.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ondrej Jirman , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Samuel Holland Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When using the I2S, LEFT_J, or RIGHT_J format, the hardware supports independent BCLK and LRCK inversion control. When using DSP_A or DSP_B, LRCK inversion is not supported. The register bit is repurposed to select between DSP_A and DSP_B. Extend the driver to support this. Signed-off-by: Samuel Holland --- sound/soc/sunxi/sun8i-codec.c | 57 +++++++++++++++++++++++------------ 1 file changed, 37 insertions(+), 20 deletions(-) diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c index 0b713b2a2028..506420fb355c 100644 --- a/sound/soc/sunxi/sun8i-codec.c +++ b/sound/soc/sunxi/sun8i-codec.c @@ -39,18 +39,17 @@ #define SUN8I_MOD_RST_CTL_AIF1 15 #define SUN8I_MOD_RST_CTL_ADC 3 #define SUN8I_MOD_RST_CTL_DAC 2 #define SUN8I_SYS_SR_CTRL 0x018 #define SUN8I_SYS_SR_CTRL_AIF1_FS 12 #define SUN8I_SYS_SR_CTRL_AIF2_FS 8 #define SUN8I_AIF1CLK_CTRL 0x040 #define SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD 15 -#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV 14 -#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV 13 +#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV 13 #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV 9 #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV 6 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ 4 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16 (1 << 4) #define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT 2 #define SUN8I_AIF1_ADCDAT_CTRL 0x044 #define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0L_ENA 15 #define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0R_ENA 14 @@ -85,16 +84,17 @@ #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R 10 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR 9 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR 8 #define SUN8I_SYSCLK_CTL_AIF1CLK_SRC_MASK GENMASK(9, 8) #define SUN8I_SYSCLK_CTL_AIF2CLK_SRC_MASK GENMASK(5, 4) #define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK GENMASK(15, 12) #define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8) +#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK GENMASK(14, 13) #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9) #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6) #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4) #define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK GENMASK(3, 2) enum { AIF1, NAIFS @@ -168,17 +168,17 @@ static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params) default: return -EINVAL; } } static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct sun8i_codec *scodec = snd_soc_dai_get_drvdata(dai); - u32 format, value; + u32 format, invert, value; /* clock masters */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */ value = 0x1; break; case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */ value = 0x0; @@ -197,55 +197,72 @@ static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) break; case SND_SOC_DAIFMT_LEFT_J: format = 0x1; break; case SND_SOC_DAIFMT_RIGHT_J: format = 0x2; break; case SND_SOC_DAIFMT_DSP_A: + format = 0x3; + invert = 0x0; /* Set LRCK_INV to 0 */ + break; case SND_SOC_DAIFMT_DSP_B: format = 0x3; + invert = 0x1; /* Set LRCK_INV to 1 */ break; default: return -EINVAL; } regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK, format << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT); /* clock inversion */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: /* Normal */ value = 0x0; break; - case SND_SOC_DAIFMT_IB_IF: /* Inversion */ + case SND_SOC_DAIFMT_NB_IF: /* Inverted LRCK */ value = 0x1; break; + case SND_SOC_DAIFMT_IB_NF: /* Inverted BCLK */ + value = 0x2; + break; + case SND_SOC_DAIFMT_IB_IF: /* Both inverted */ + value = 0x3; + break; default: return -EINVAL; } - regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, - BIT(SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV), - value << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV); - /* - * It appears that the DAI and the codec in the A33 SoC don't - * share the same polarity for the LRCK signal when they mean - * 'normal' and 'inverted' in the datasheet. - * - * Since the DAI here is our regular i2s driver that have been - * tested with way more codecs than just this one, it means - * that the codec probably gets it backward, and we have to - * invert the value here. - */ - value ^= scodec->quirks->lrck_inversion; + if (format == 0x3) { + /* Inverted LRCK is not available in DSP mode. */ + if (value & BIT(0)) + return -EINVAL; + + /* Instead, the bit selects between DSP A/B formats. */ + value |= invert; + } else { + /* + * It appears that the DAI and the codec in the A33 SoC don't + * share the same polarity for the LRCK signal when they mean + * 'normal' and 'inverted' in the datasheet. + * + * Since the DAI here is our regular i2s driver that have been + * tested with way more codecs than just this one, it means + * that the codec probably gets it backward, and we have to + * invert the value here. + */ + value ^= scodec->quirks->lrck_inversion; + } + regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, - BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV), - value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV); + SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK, + value << SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV); return 0; } struct sun8i_codec_clk_div { u8 div; u8 val; }; -- 2.26.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel