linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ravulapati Vishnu vardhan rao  <Vishnuvardhanrao.Ravulapati@amd.com>
To: unlisted-recipients:; (no To-header on input)
Cc: <Alexander.Deucher@amd.com>, <djkurtz@google.com>,
	<Akshu.Agrawal@amd.com>,
	Ravulapati Vishnu vardhan rao 
	<Vishnuvardhanrao.Ravulapati@amd.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	"Takashi Iwai" <tiwai@suse.com>,
	"moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER
	MANAGEM..."  <alsa-devel@alsa-project.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: [RESEND PATCH v9 4/6] ASoC: amd: add ACP3x TDM mode support
Date: Tue, 19 Nov 2019 17:41:14 +0530	[thread overview]
Message-ID: <1574165476-24987-5-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com> (raw)
In-Reply-To: <1574165476-24987-1-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com>

ACP3x I2S (CPU DAI) can act in normal I2S and TDM modes. Added support
for TDM mode. Desired mode can be selected from ASoC machine driver.

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>
---
 sound/soc/amd/raven/acp3x-i2s.c | 42 +++++++++++++++++++++++++++++++----------
 sound/soc/amd/raven/acp3x.h     |  2 ++
 2 files changed, 34 insertions(+), 10 deletions(-)

diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c
index b039dac..d7aa345 100644
--- a/sound/soc/amd/raven/acp3x-i2s.c
+++ b/sound/soc/amd/raven/acp3x-i2s.c
@@ -44,8 +44,8 @@ static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask,
 		u32 rx_mask, int slots, int slot_width)
 {
 	struct i2s_dev_data *adata;
-	u32 val;
 	u16 slot_len;
+	u32 val, flen, reg_val, frmt_reg;
 
 	adata = snd_soc_dai_get_drvdata(cpu_dai);
 
@@ -68,16 +68,38 @@ static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask,
 		return -EINVAL;
 	}
 
-	val = rv_readl(adata->acp3x_base + mmACP_BTTDM_ITER);
-	rv_writel(val | 0x2, adata->acp3x_base + mmACP_BTTDM_ITER);
-	val = rv_readl(adata->acp3x_base + mmACP_BTTDM_IRER);
-	rv_writel(val | 0x2, adata->acp3x_base + mmACP_BTTDM_IRER);
-
-	val = FRM_LEN | (slots << 15) | (slot_len << 18);
-	rv_writel(val, adata->acp3x_base + mmACP_BTTDM_TXFRMT);
-	rv_writel(val, adata->acp3x_base + mmACP_BTTDM_RXFRMT);
+	/* Enable I2S / BT channels TDM and respective
+	 * I2S/BT`s TX/RX Formats frame lengths.
+	 */
+	flen = FRM_LEN | (slots << 15) | (slot_len << 18);
 
-	adata->tdm_fmt = val;
+	if (adata->substream_type == SNDRV_PCM_STREAM_PLAYBACK) {
+		switch (adata->i2s_instance) {
+		case I2S_BT_INSTANCE:
+			reg_val = mmACP_BTTDM_ITER;
+			frmt_reg = mmACP_BTTDM_TXFRMT;
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			reg_val = mmACP_I2STDM_ITER;
+			frmt_reg = mmACP_I2STDM_TXFRMT;
+		}
+	} else {
+		switch (adata->i2s_instance) {
+		case I2S_BT_INSTANCE:
+			reg_val = mmACP_BTTDM_IRER;
+			frmt_reg = mmACP_BTTDM_RXFRMT;
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			reg_val = mmACP_I2STDM_IRER;
+			frmt_reg = mmACP_I2STDM_RXFRMT;
+		}
+	}
+	val = rv_readl(adata->acp3x_base + reg_val);
+	rv_writel(val | 0x2, adata->acp3x_base + reg_val);
+	rv_writel(flen,	adata->acp3x_base + frmt_reg);
+	adata->tdm_fmt = flen;
 	return 0;
 }
 
diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h
index c071477..01b283a 100644
--- a/sound/soc/amd/raven/acp3x.h
+++ b/sound/soc/amd/raven/acp3x.h
@@ -76,6 +76,8 @@ struct i2s_dev_data {
 	bool tdm_mode;
 	unsigned int i2s_irq;
 	u32 tdm_fmt;
+	u16 i2s_instance;
+	u32 substream_type;
 	void __iomem *acp3x_base;
 	struct snd_pcm_substream *play_stream;
 	struct snd_pcm_substream *capture_stream;
-- 
2.7.4


  parent reply	other threads:[~2019-11-19 12:13 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1574165476-24987-1-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com>
2019-11-19 12:11 ` [PATCH v9 1/6] ASoC: amd:Create multiple I2S platform device endpoint Ravulapati Vishnu vardhan rao
2019-11-19 12:11 ` [RESEND PATCH v9 2/6] ASoC: amd: Refactoring of DAI from DMA driver Ravulapati Vishnu vardhan rao
2019-11-19 12:11 ` [RESEND PATCH v9 3/6] ASoC: amd: Enabling I2S instance in DMA and DAI Ravulapati Vishnu vardhan rao
2019-11-19 12:11 ` Ravulapati Vishnu vardhan rao [this message]
2019-11-19 12:11 ` [RESEND PATCH v9 5/6] ASoC: amd: Handle ACP3x I2S-SP Interrupts Ravulapati Vishnu vardhan rao
2019-11-19 12:11 ` [RESEND PATCH v9 6/6] ASoC: amd: Added ACP3x system resume and runtime pm Ravulapati Vishnu vardhan rao
2019-11-19 12:35   ` Dan Carpenter
2019-11-19 12:56     ` vishnu
2019-11-19 13:34       ` Dan Carpenter
2019-11-19 17:55         ` Mark Brown
2019-11-19 14:03       ` vishnu
2019-11-19 14:10         ` Dan Carpenter

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1574165476-24987-5-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com \
    --to=vishnuvardhanrao.ravulapati@amd.com \
    --cc=Akshu.Agrawal@amd.com \
    --cc=Alexander.Deucher@amd.com \
    --cc=alsa-devel@alsa-project.org \
    --cc=broonie@kernel.org \
    --cc=djkurtz@google.com \
    --cc=lgirdwood@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=perex@perex.cz \
    --cc=tiwai@suse.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).