Applied "ASoC: qcom: sdm845: handle soundwire stream" to the asoc tree
Mark Brown
broonie at kernel.org
Wed Mar 18 22:41:41 CET 2020
The patch
ASoC: qcom: sdm845: handle soundwire stream
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
Thanks,
Mark
>From 1b93a88431470ea0b943157999084d9c7e6e3bd3 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
Date: Tue, 17 Mar 2020 15:12:32 +0000
Subject: [PATCH] ASoC: qcom: sdm845: handle soundwire stream
In existing setup WSA881x codec handles soundwire stream,
however DB845c and other machines based on SDM845c have 2
instances for WSA881x codec. This will force soundwire stream
to be prepared/enabled twice or multiple times.
Handling SoundWire Stream in machine driver would fix this issue.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Link: https://lore.kernel.org/r/20200317151233.8763-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie at kernel.org>
---
sound/soc/qcom/Kconfig | 2 +-
sound/soc/qcom/sdm845.c | 67 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 68 insertions(+), 1 deletion(-)
diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index 6530d2462a9e..f51b28d1b94d 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -99,7 +99,7 @@ config SND_SOC_MSM8996
config SND_SOC_SDM845
tristate "SoC Machine driver for SDM845 boards"
- depends on QCOM_APR && CROS_EC && I2C
+ depends on QCOM_APR && CROS_EC && I2C && SOUNDWIRE
select SND_SOC_QDSP6
select SND_SOC_QCOM_COMMON
select SND_SOC_RT5663
diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c
index 3ac02204a706..67a55edf755f 100644
--- a/sound/soc/qcom/sdm845.c
+++ b/sound/soc/qcom/sdm845.c
@@ -11,6 +11,7 @@
#include <sound/pcm_params.h>
#include <sound/jack.h>
#include <sound/soc.h>
+#include <linux/soundwire/sdw.h>
#include <uapi/linux/input-event-codes.h>
#include "common.h"
#include "qdsp6/q6afe.h"
@@ -31,10 +32,12 @@
struct sdm845_snd_data {
struct snd_soc_jack jack;
bool jack_setup;
+ bool stream_prepared[SLIM_MAX_RX_PORTS];
struct snd_soc_card *card;
uint32_t pri_mi2s_clk_count;
uint32_t sec_mi2s_clk_count;
uint32_t quat_tdm_clk_count;
+ struct sdw_stream_runtime *sruntime[SLIM_MAX_RX_PORTS];
};
static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};
@@ -45,11 +48,18 @@ static int sdm845_slim_snd_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai;
+ struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS];
+ struct sdw_stream_runtime *sruntime;
u32 rx_ch_cnt = 0, tx_ch_cnt = 0;
int ret = 0, i;
for_each_rtd_codec_dais(rtd, i, codec_dai) {
+ sruntime = snd_soc_dai_get_sdw_stream(codec_dai,
+ substream->stream);
+ if (sruntime != ERR_PTR(-ENOTSUPP))
+ pdata->sruntime[cpu_dai->id] = sruntime;
+
ret = snd_soc_dai_get_channel_map(codec_dai,
&tx_ch_cnt, tx_ch, &rx_ch_cnt, rx_ch);
@@ -425,8 +435,65 @@ static void sdm845_snd_shutdown(struct snd_pcm_substream *substream)
}
}
+static int sdm845_snd_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
+ int ret;
+
+ if (!sruntime)
+ return 0;
+
+ if (data->stream_prepared[cpu_dai->id]) {
+ sdw_disable_stream(sruntime);
+ sdw_deprepare_stream(sruntime);
+ data->stream_prepared[cpu_dai->id] = false;
+ }
+
+ ret = sdw_prepare_stream(sruntime);
+ if (ret)
+ return ret;
+
+ /**
+ * NOTE: there is a strict hw requirement about the ordering of port
+ * enables and actual WSA881x PA enable. PA enable should only happen
+ * after soundwire ports are enabled if not DC on the line is
+ * accumulated resulting in Click/Pop Noise
+ * PA enable/mute are handled as part of codec DAPM and digital mute.
+ */
+
+ ret = sdw_enable_stream(sruntime);
+ if (ret) {
+ sdw_deprepare_stream(sruntime);
+ return ret;
+ }
+ data->stream_prepared[cpu_dai->id] = true;
+
+ return ret;
+}
+
+static int sdm845_snd_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
+
+ if (sruntime && data->stream_prepared[cpu_dai->id]) {
+ sdw_disable_stream(sruntime);
+ sdw_deprepare_stream(sruntime);
+ data->stream_prepared[cpu_dai->id] = false;
+ }
+
+ return 0;
+}
+
static const struct snd_soc_ops sdm845_be_ops = {
.hw_params = sdm845_snd_hw_params,
+ .hw_free = sdm845_snd_hw_free,
+ .prepare = sdm845_snd_prepare,
.startup = sdm845_snd_startup,
.shutdown = sdm845_snd_shutdown,
};
--
2.20.1
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