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Mon, 1 Aug 2022 13:00:16 -0500 From: Venkata Prasad Potturu To: , CC: , , , , , Venkata Prasad Potturu , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , V sujith kumar Reddy , Ajit Kumar Pandey , open list Subject: [PATCH] ASoC: amd: acp: Add TDM support for acp i2s stream Date: Mon, 1 Aug 2022 23:33:23 +0530 Message-ID: <20220801180330.288356-1-venkataprasad.potturu@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 1be00aab-0a5d-433b-3f52-08da73e7bf49 X-MS-TrafficTypeDiagnostic: BN9PR12MB5353:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230016)(4636009)(136003)(39860400002)(376002)(346002)(396003)(46966006)(40470700004)(36840700001)(478600001)(966005)(316002)(54906003)(40460700003)(70586007)(4326008)(110136005)(8676002)(70206006)(82740400003)(40480700001)(82310400005)(356005)(81166007)(8936002)(86362001)(2906002)(36860700001)(5660300002)(2616005)(1076003)(186003)(336012)(426003)(47076005)(41300700001)(83380400001)(26005)(7696005)(6666004)(36756003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Aug 2022 18:00:40.8203 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1be00aab-0a5d-433b-3f52-08da73e7bf49 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT034.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN9PR12MB5353 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add callback and code changes to enable ACP I2S controller in TDM mode. Add new fields in acp_stream and acp_dev_data struct to configure tdm related registers for ACP i2s controllers. Signed-off-by: Venkata Prasad Potturu --- Depends on:- -- https://patchwork.kernel.org/project/alsa-devel/patch/20220728124057= .54259-1-venkataprasad.potturu@amd.com/ sound/soc/amd/acp/acp-i2s.c | 78 ++++++++++++++++++++++++++++++++++++- sound/soc/amd/acp/amd.h | 12 ++++++ 2 files changed, 89 insertions(+), 1 deletion(-) diff --git a/sound/soc/amd/acp/acp-i2s.c b/sound/soc/amd/acp/acp-i2s.c index 393f729ef561..b1257923b225 100644 --- a/sound/soc/amd/acp/acp-i2s.c +++ b/sound/soc/amd/acp/acp-i2s.c @@ -25,6 +25,63 @@ =20 #define DRV_NAME "acp_i2s_playcap" =20 +static int acp_i2s_set_fmt(struct snd_soc_dai *cpu_dai, + unsigned int fmt) +{ + struct acp_dev_data *adata =3D snd_soc_dai_get_drvdata(cpu_dai); + int mode; + + mode =3D fmt & SND_SOC_DAIFMT_FORMAT_MASK; + switch (mode) { + case SND_SOC_DAIFMT_I2S: + adata->tdm_mode =3D TDM_DISABLE; + break; + case SND_SOC_DAIFMT_DSP_A: + adata->tdm_mode =3D TDM_ENABLE; + break; + default: + return -EINVAL; + } + return 0; +} + +static int acp_i2s_set_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask, u32 = rx_mask, + int slots, int slot_width) +{ + struct device *dev =3D dai->component->dev; + struct acp_dev_data *adata =3D snd_soc_dai_get_drvdata(dai); + struct acp_stream *stream; + int slot_len; + + switch (slot_width) { + case SLOT_WIDTH_8: + slot_len =3D 8; + break; + case SLOT_WIDTH_16: + slot_len =3D 16; + break; + case SLOT_WIDTH_24: + slot_len =3D 24; + break; + case SLOT_WIDTH_32: + slot_len =3D 0; + break; + default: + dev_err(dev, "Unsupported bitdepth %d\n", slot_width); + return -EINVAL; + } + + list_for_each_entry(stream, &adata->stream_list, list) { + if (tx_mask && stream->dir =3D=3D SNDRV_PCM_STREAM_PLAYBACK) + adata->tdm_tx_fmt[stream->dai_id - 1] =3D + FRM_LEN | (slots << 15) | (slot_len << 18); + else if (rx_mask && stream->dir =3D=3D SNDRV_PCM_STREAM_CAPTURE) + adata->tdm_rx_fmt[stream->dai_id - 1] =3D + FRM_LEN | (slots << 15) | (slot_len << 18); + } + return 0; +} + static int acp_i2s_hwparams(struct snd_pcm_substream *substream, struct sn= d_pcm_hw_params *params, struct snd_soc_dai *dai) { @@ -33,7 +90,7 @@ static int acp_i2s_hwparams(struct snd_pcm_substream *sub= stream, struct snd_pcm_ struct acp_resource *rsrc; u32 val; u32 xfer_resolution; - u32 reg_val; + u32 reg_val, fmt_reg, tdm_fmt; u32 lrclk_div_val, bclk_div_val; =20 adata =3D snd_soc_dai_get_drvdata(dai); @@ -62,12 +119,15 @@ static int acp_i2s_hwparams(struct snd_pcm_substream *= substream, struct snd_pcm_ switch (dai->driver->id) { case I2S_BT_INSTANCE: reg_val =3D ACP_BTTDM_ITER; + fmt_reg =3D ACP_BTTDM_TXFRMT; break; case I2S_SP_INSTANCE: reg_val =3D ACP_I2STDM_ITER; + fmt_reg =3D ACP_I2STDM_TXFRMT; break; case I2S_HS_INSTANCE: reg_val =3D ACP_HSTDM_ITER; + fmt_reg =3D ACP_HSTDM_TXFRMT; break; default: dev_err(dev, "Invalid dai id %x\n", dai->driver->id); @@ -77,12 +137,15 @@ static int acp_i2s_hwparams(struct snd_pcm_substream *= substream, struct snd_pcm_ switch (dai->driver->id) { case I2S_BT_INSTANCE: reg_val =3D ACP_BTTDM_IRER; + fmt_reg =3D ACP_BTTDM_RXFRMT; break; case I2S_SP_INSTANCE: reg_val =3D ACP_I2STDM_IRER; + fmt_reg =3D ACP_I2STDM_RXFRMT; break; case I2S_HS_INSTANCE: reg_val =3D ACP_HSTDM_IRER; + fmt_reg =3D ACP_HSTDM_RXFRMT; break; default: dev_err(dev, "Invalid dai id %x\n", dai->driver->id); @@ -95,6 +158,16 @@ static int acp_i2s_hwparams(struct snd_pcm_substream *s= ubstream, struct snd_pcm_ val =3D val | (xfer_resolution << 3); writel(val, adata->acp_base + reg_val); =20 + if (adata->tdm_mode) { + val =3D readl(adata->acp_base + reg_val); + writel(val | BIT(1), adata->acp_base + reg_val); + if (substream->stream =3D=3D SNDRV_PCM_STREAM_PLAYBACK) + tdm_fmt =3D adata->tdm_tx_fmt[dai->driver->id - 1]; + else + tdm_fmt =3D adata->tdm_rx_fmt[dai->driver->id - 1]; + writel(tdm_fmt, adata->acp_base + fmt_reg); + } + if (rsrc->soc_mclk) { switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: @@ -443,6 +516,7 @@ static int acp_i2s_startup(struct snd_pcm_substream *su= bstream, struct snd_soc_d stream->id =3D dai->driver->id + dir; stream->dai_id =3D dai->driver->id; stream->irq_bit =3D irq_bit; + stream->dir =3D substream->stream; =20 return 0; } @@ -452,6 +526,8 @@ const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops =3D { .hw_params =3D acp_i2s_hwparams, .prepare =3D acp_i2s_prepare, .trigger =3D acp_i2s_trigger, + .set_fmt =3D acp_i2s_set_fmt, + .set_tdm_slot =3D acp_i2s_set_tdm_slot, }; EXPORT_SYMBOL_NS_GPL(asoc_acp_cpu_dai_ops, SND_SOC_ACP_COMMON); =20 diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h index be8bb8247c4e..5f2119f42271 100644 --- a/sound/soc/amd/acp/amd.h +++ b/sound/soc/amd/acp/amd.h @@ -84,6 +84,14 @@ =20 #define ACP_MAX_STREAM 8 =20 +#define TDM_ENABLE 1 +#define TDM_DISABLE 0 + +#define SLOT_WIDTH_8 0x8 +#define SLOT_WIDTH_16 0x10 +#define SLOT_WIDTH_24 0x18 +#define SLOT_WIDTH_32 0x20 + struct acp_chip_info { char *name; /* Platform name */ unsigned int acp_rev; /* ACP Revision id */ @@ -96,6 +104,7 @@ struct acp_stream { int irq_bit; int dai_id; int id; + int dir; u64 bytescount; u32 reg_offset; u32 pte_offset; @@ -120,6 +129,7 @@ struct acp_dev_data { void __iomem *acp_base; unsigned int i2s_irq; =20 + bool tdm_mode; /* SOC specific dais */ struct snd_soc_dai_driver *dai_driver; int num_dai; @@ -134,6 +144,8 @@ struct acp_dev_data { u32 lrclk_div; =20 struct acp_resource *rsrc; + u32 tdm_tx_fmt[3]; + u32 tdm_rx_fmt[3]; }; =20 union acp_i2stdm_mstrclkgen { --=20 2.25.1