From: Ben Dooks <ben.dooks@codethink.co.uk>
To: linux-tegra@vger.kernel.org, alsa-devel@alsa-project.org,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-kernel@lists.codethink.co.uk,
Ben Dooks <ben.dooks@codethink.co.uk>,
Edward Cragg <edward.cragg@codethink.co.uk>
Subject: [alsa-devel] [PATCH v4 1/7] ASoC: tegra: add a TDM configuration callback
Date: Mon, 7 Oct 2019 16:31:30 +0100 [thread overview]
Message-ID: <20191007153136.4920-2-ben.dooks@codethink.co.uk> (raw)
In-Reply-To: <20191007153136.4920-1-ben.dooks@codethink.co.uk>
From: Edward Cragg <edward.cragg@codethink.co.uk>
Add a callback to configure TDM settings for the Tegra30 I2S ASoC 'platform'
driver.
Signed-off-by: Edward Cragg <edward.cragg@codethink.co.uk>
[ben.dooks@codethink.co.uk: merge fix for power management]
[ben.dooks@codethink.co.uk: add review change for fsync of 1 clock]
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
sound/soc/tegra/tegra30_i2s.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index ac6983c6bd72..73f0dddeaef3 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -254,6 +254,34 @@ static int tegra30_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
return 0;
}
+static int tegra30_i2s_set_tdm(struct snd_soc_dai *dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+ unsigned int mask, val;
+
+ dev_dbg(dai->dev, "%s: txmask=0x%08x rxmask=0x%08x slots=%d width=%d\n",
+ __func__, tx_mask, rx_mask, slots, slot_width);
+
+ mask = TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_MASK |
+ TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_MASK |
+ TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_MASK;
+
+ val = (tx_mask << TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_SHIFT) |
+ (rx_mask << TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_SHIFT) |
+ ((slots - 1) << TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_SHIFT);
+
+ pm_runtime_get_sync(dai->dev);
+ regmap_update_bits(i2s->regmap, TEGRA30_I2S_SLOT_CTRL, mask, val);
+ /* set the fsync width to minimum of 1 clock width */
+ regmap_update_bits(i2s->regmap, TEGRA30_I2S_CH_CTRL,
+ TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK, 0x0);
+ pm_runtime_put(dai->dev);
+
+ return 0;
+}
+
static int tegra30_i2s_probe(struct snd_soc_dai *dai)
{
struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai);
@@ -268,6 +296,7 @@ static const struct snd_soc_dai_ops tegra30_i2s_dai_ops = {
.set_fmt = tegra30_i2s_set_fmt,
.hw_params = tegra30_i2s_hw_params,
.trigger = tegra30_i2s_trigger,
+ .set_tdm_slot = tegra30_i2s_set_tdm,
};
static const struct snd_soc_dai_driver tegra30_i2s_dai_template = {
--
2.23.0
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next prev parent reply other threads:[~2019-10-07 15:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-07 15:31 [alsa-devel] tegra30 tdm support Ben Dooks
2019-10-07 15:31 ` Ben Dooks [this message]
2019-10-07 15:31 ` [alsa-devel] [PATCH v4 2/7] ASoC: tegra: Allow 24bit and 32bit samples Ben Dooks
2019-10-07 15:31 ` [alsa-devel] [PATCH v4 3/7] ASoC: tegra: i2s: Add support for more than 2 channels Ben Dooks
2019-10-08 15:29 ` Dmitry Osipenko
2019-10-17 16:23 ` Ben Dooks
2019-10-17 17:38 ` Dmitry Osipenko
2019-10-24 16:11 ` Jon Hunter
2019-11-05 11:58 ` Ben Dooks
2019-10-07 15:31 ` [alsa-devel] [PATCH v4 4/7] ASoC: tegra: disable rx_fifo after disable stream Ben Dooks
2019-10-07 15:31 ` [alsa-devel] [PATCH v4 5/7] ASoC: tegra: set i2s_offset to 0 for tdm Ben Dooks
2019-10-07 15:31 ` [alsa-devel] [PATCH v4 6/7] ASoC: tegra: config fifos on hw_param changes Ben Dooks
2019-10-07 15:31 ` [alsa-devel] [PATCH v4 7/7] ASoC: tegra: take packing settings from the audio cif_config Ben Dooks
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