From: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
To: agross@kernel.org, bjorn.andersson@linaro.org,
lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org,
plai@codeaurora.org, bgoswami@codeaurora.org, perex@perex.cz,
tiwai@suse.com, srinivas.kandagatla@linaro.org,
rohitkr@codeaurora.org, linux-arm-msm@vger.kernel.org,
alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, swboyd@chromium.org,
judyhsiao@chromium.org
Cc: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
Subject: [PATCH v2] ASoC: qcom: Add four speaker support on MI2S secondary
Date: Wed, 9 Jun 2021 12:43:13 +0530 [thread overview]
Message-ID: <20210609071313.18206-1-srivasam@codeaurora.org> (raw)
Add four speaker support on MI2S secondary block
by using I2S SD1 line on gpio52 pin, and add channel map
control support in the lpass-cpu audio driver.
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
---
Changes Since V1:
-- removed set_channel_map/get_channel_map implementation as default kcontrols
added in pcm_new API.
sound/soc/qcom/lpass-cpu.c | 32 ++++++++++++++++++++++++++++++++
sound/soc/qcom/lpass-sc7180.c | 1 +
sound/soc/qcom/lpass.h | 2 ++
3 files changed, 35 insertions(+)
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index c62d2612e8f5..15d69e311b38 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -29,6 +29,14 @@
#define LPASS_CPU_I2S_SD0_1_2_MASK GENMASK(2, 0)
#define LPASS_CPU_I2S_SD0_1_2_3_MASK GENMASK(3, 0)
+/*
+ * Channel maps for Quad channel playbacks on MI2S Secondary
+ */
+static struct snd_pcm_chmap_elem lpass_quad_chmaps = {
+ .channels = 4,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_RL,
+ SNDRV_CHMAP_FR, SNDRV_CHMAP_RR }
+};
static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
struct lpaif_i2sctl *i2sctl, struct regmap *map)
{
@@ -324,6 +332,25 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
};
EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
+int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *dai)
+{
+ int ret;
+ struct snd_soc_dai_driver *drv = dai->driver;
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+
+ if (drvdata->mi2s_playback_sd_mode[dai->id] == LPAIF_I2SCTL_MODE_QUAD01) {
+ ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ &lpass_quad_chmaps, drv->playback.channels_max, 0,
+ NULL);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(lpass_cpu_pcm_new);
+
int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
@@ -856,6 +883,11 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
PTR_ERR(drvdata->mi2s_bit_clk[dai_id]));
return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
}
+ if (drvdata->mi2s_playback_sd_mode[dai_id] ==
+ LPAIF_I2SCTL_MODE_QUAD01) {
+ variant->dai_driver[dai_id].playback.channels_min = 4;
+ variant->dai_driver[dai_id].playback.channels_max = 4;
+ }
}
/* Allocation for i2sctl regmap fields */
diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c
index 8c168d3c589e..77a556b27cf0 100644
--- a/sound/soc/qcom/lpass-sc7180.c
+++ b/sound/soc/qcom/lpass-sc7180.c
@@ -58,6 +58,7 @@ static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = {
},
.probe = &asoc_qcom_lpass_cpu_dai_probe,
.ops = &asoc_qcom_lpass_cpu_dai_ops,
+ .pcm_new = lpass_cpu_pcm_new,
}, {
.id = LPASS_DP_RX,
.name = "Hdmi",
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index 83b2e08ade06..623ddccdafff 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -259,5 +259,7 @@ void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev);
int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev);
int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai);
extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;
+int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *dai);
#endif /* __LPASS_H__ */
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
next reply other threads:[~2021-06-09 7:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-09 7:13 Srinivasa Rao Mandadapu [this message]
2021-06-09 8:10 ` [PATCH v2] ASoC: qcom: Add four speaker support on MI2S secondary Srinivas Kandagatla
2021-06-09 13:25 ` Srinivasa Rao Mandadapu
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