ASoC: qcom: lpass-msm8998: Add platform driver for lpass audio
Add platform driver for configuring msm8998 lpass core I2S and
DMA configuration to support playback & capture to external codecs
connected over primary & secondary MI2S interfaces.
(driver originally split from 4d7e1ead3b ("fastmatrix yaml fix"))
This commit is contained in:
Jami Kettunen
Jami Kettunen
parent
5be5c146c2
commit
ad7c17af90
4 changed files with 348 additions and 0 deletions
9
include/dt-bindings/sound/msm8998-lpass.h
Normal file
9
include/dt-bindings/sound/msm8998-lpass.h
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@ -0,0 +1,9 @@
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __DT_MSM8998_LPASS_H
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#define __DT_MSM8998_LPASS_H
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#include <dt-bindings/sound/qcom,lpass.h>
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/* NOTE: Use qcom,lpass.h to define any AIF ID's for LPASS */
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#endif /* __DT_MSM8998_LPASS_H */
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@ -34,6 +34,12 @@ config SND_SOC_LPASS_APQ8016
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select SND_SOC_LPASS_CPU
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select SND_SOC_LPASS_CPU
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select SND_SOC_LPASS_PLATFORM
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select SND_SOC_LPASS_PLATFORM
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config SND_SOC_LPASS_MSM8998
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tristate
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select SND_SOC_LPASS_CPU
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select SND_SOC_LPASS_PLATFORM
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select SND_SOC_LPASS_HDMI
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config SND_SOC_LPASS_SC7180
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config SND_SOC_LPASS_SC7180
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tristate
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tristate
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select SND_SOC_LPASS_CPU
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select SND_SOC_LPASS_CPU
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@ -154,6 +160,7 @@ config SND_SOC_MSM8998
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depends on COMMON_CLK
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depends on COMMON_CLK
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select SND_SOC_QDSP6
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select SND_SOC_QDSP6
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select SND_SOC_QCOM_COMMON
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select SND_SOC_QCOM_COMMON
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select SND_SOC_LPASS_MSM8998
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help
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help
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To add support for audio on Qualcomm Technologies Inc.
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To add support for audio on Qualcomm Technologies Inc.
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MSM8998 SoC-based systems.
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MSM8998 SoC-based systems.
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@ -6,6 +6,7 @@ snd-soc-lpass-hdmi-objs := lpass-hdmi.o
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snd-soc-lpass-platform-objs := lpass-platform.o
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snd-soc-lpass-platform-objs := lpass-platform.o
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snd-soc-lpass-ipq806x-objs := lpass-ipq806x.o
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snd-soc-lpass-ipq806x-objs := lpass-ipq806x.o
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snd-soc-lpass-apq8016-objs := lpass-apq8016.o
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snd-soc-lpass-apq8016-objs := lpass-apq8016.o
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snd-soc-lpass-msm8998-objs := lpass-msm8998.o
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snd-soc-lpass-sc7180-objs := lpass-sc7180.o
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snd-soc-lpass-sc7180-objs := lpass-sc7180.o
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snd-soc-lpass-sc7280-objs := lpass-sc7280.o
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snd-soc-lpass-sc7280-objs := lpass-sc7280.o
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@ -15,6 +16,7 @@ obj-$(CONFIG_SND_SOC_LPASS_HDMI) += snd-soc-lpass-hdmi.o
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obj-$(CONFIG_SND_SOC_LPASS_PLATFORM) += snd-soc-lpass-platform.o
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obj-$(CONFIG_SND_SOC_LPASS_PLATFORM) += snd-soc-lpass-platform.o
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obj-$(CONFIG_SND_SOC_LPASS_IPQ806X) += snd-soc-lpass-ipq806x.o
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obj-$(CONFIG_SND_SOC_LPASS_IPQ806X) += snd-soc-lpass-ipq806x.o
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obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o
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obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o
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obj-$(CONFIG_SND_SOC_LPASS_MSM8998) += snd-soc-lpass-msm8998.o
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obj-$(CONFIG_SND_SOC_LPASS_SC7180) += snd-soc-lpass-sc7180.o
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obj-$(CONFIG_SND_SOC_LPASS_SC7180) += snd-soc-lpass-sc7180.o
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obj-$(CONFIG_SND_SOC_LPASS_SC7280) += snd-soc-lpass-sc7280.o
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obj-$(CONFIG_SND_SOC_LPASS_SC7280) += snd-soc-lpass-sc7280.o
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330
sound/soc/qcom/lpass-msm8998.c
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330
sound/soc/qcom/lpass-msm8998.c
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@ -0,0 +1,330 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2021 AngeloGioacchino Del Regno
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* <angelogioacchino.delregno@somainline.org>
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*
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* lpass-msm8998.c -- ALSA SoC platform-machine driver for QTi LPASS
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*/
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#include <linux/clk.h>
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <dt-bindings/sound/msm8998-lpass.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include "lpass-lpaif-reg.h"
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#include "lpass.h"
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static struct snd_soc_dai_driver msm8998_lpass_cpu_dai_driver[] = {
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{
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.id = MI2S_PRIMARY,
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.name = "Primary MI2S",
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.playback = {
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.stream_name = "Primary Playback",
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.formats = SNDRV_PCM_FMTBIT_S16,
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.rates = SNDRV_PCM_RATE_48000,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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},
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.capture = {
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.stream_name = "Primary Capture",
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.formats = SNDRV_PCM_FMTBIT_S16 |
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SNDRV_PCM_FMTBIT_S32,
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.rates = SNDRV_PCM_RATE_48000,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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},
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.probe = &asoc_qcom_lpass_cpu_dai_probe,
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.ops = &asoc_qcom_lpass_cpu_dai_ops,
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}, {
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.id = MI2S_SECONDARY,
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.name = "Secondary MI2S",
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.playback = {
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.stream_name = "Secondary Playback",
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.formats = SNDRV_PCM_FMTBIT_S16,
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.rates = SNDRV_PCM_RATE_48000,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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},
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.probe = &asoc_qcom_lpass_cpu_dai_probe,
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.ops = &asoc_qcom_lpass_cpu_dai_ops,
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}, {
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.id = MI2S_TERTIARY,
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.name = "Tertiary MI2S",
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.playback = {
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.stream_name = "Tertiary Playback",
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.formats = SNDRV_PCM_FMTBIT_S16,
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.rates = SNDRV_PCM_RATE_48000,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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},
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.probe = &asoc_qcom_lpass_cpu_dai_probe,
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.ops = &asoc_qcom_lpass_cpu_dai_ops,
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}, {
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.id = MI2S_QUATERNARY,
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.name = "Quaternary MI2S",
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.playback = {
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.stream_name = "Quaternary Playback",
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.formats = SNDRV_PCM_FMTBIT_S16,
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.rates = SNDRV_PCM_RATE_48000,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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},
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.probe = &asoc_qcom_lpass_cpu_dai_probe,
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.ops = &asoc_qcom_lpass_cpu_dai_ops,
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}, {
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.id = LPASS_DP_RX,
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.name = "Hdmi",
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.playback = {
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.stream_name = "Hdmi Playback",
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.formats = SNDRV_PCM_FMTBIT_S24,
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.rates = SNDRV_PCM_RATE_48000,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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},
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.ops = &asoc_qcom_lpass_hdmi_dai_ops,
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},
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};
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static int msm8998_lpass_alloc_dma_channel(struct lpass_data *drvdata,
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int direction, unsigned int dai_id)
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{
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struct lpass_variant *v = drvdata->variant;
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int chan = 0;
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if (dai_id == LPASS_DP_RX) {
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if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
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chan = find_first_zero_bit(&drvdata->hdmi_dma_ch_bit_map,
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v->hdmi_rdma_channels);
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if (chan >= v->hdmi_rdma_channels)
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return -EBUSY;
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}
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set_bit(chan, &drvdata->hdmi_dma_ch_bit_map);
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} else {
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if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
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chan = find_first_zero_bit(&drvdata->dma_ch_bit_map,
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v->rdma_channels);
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if (chan >= v->rdma_channels)
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return -EBUSY;
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} else {
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chan = find_next_zero_bit(&drvdata->dma_ch_bit_map,
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v->wrdma_channel_start +
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v->wrdma_channels,
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v->wrdma_channel_start);
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if (chan >= v->wrdma_channel_start + v->wrdma_channels)
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return -EBUSY;
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}
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set_bit(chan, &drvdata->dma_ch_bit_map);
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}
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return chan;
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}
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static int msm8998_lpass_free_dma_channel(struct lpass_data *drvdata, int chan, unsigned int dai_id)
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{
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if (dai_id == LPASS_DP_RX)
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clear_bit(chan, &drvdata->hdmi_dma_ch_bit_map);
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else
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clear_bit(chan, &drvdata->dma_ch_bit_map);
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return 0;
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}
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static int msm8998_lpass_init(struct platform_device *pdev)
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{
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struct lpass_data *drvdata = platform_get_drvdata(pdev);
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struct lpass_variant *variant = drvdata->variant;
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struct device *dev = &pdev->dev;
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int ret, i;
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drvdata->clks = devm_kcalloc(dev, variant->num_clks,
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sizeof(*drvdata->clks), GFP_KERNEL);
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drvdata->num_clks = variant->num_clks;
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for (i = 0; i < drvdata->num_clks; i++)
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drvdata->clks[i].id = variant->clk_name[i];
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ret = devm_clk_bulk_get(dev, drvdata->num_clks, drvdata->clks);
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if (ret) {
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dev_err(dev, "Failed to get clocks %d\n", ret);
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return ret;
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}
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ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks);
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if (ret) {
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dev_err(dev, "msm8998 clk_enable failed\n");
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return ret;
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}
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return 0;
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}
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static int msm8998_lpass_exit(struct platform_device *pdev)
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{
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struct lpass_data *drvdata = platform_get_drvdata(pdev);
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clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks);
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return 0;
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}
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static struct lpass_variant msm8998_data = {
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.i2sctrl_reg_base = 0x1000,
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.i2sctrl_reg_stride = 0x1000,
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.i2s_ports = 3,
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.irq_reg_base = 0xa000,
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.irq_reg_stride = 0x1000,
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.irq_ports = 3,
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.rdma_reg_base = 0xD000,
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.rdma_reg_stride = 0x1000,
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.rdma_channels = 5,
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.hdmi_rdma_reg_base = 0x3000,
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.hdmi_rdma_reg_stride = 0x1000,
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.hdmi_rdma_channels = 4,
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.dmactl_audif_start = 1, /* what's that?? */
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.wrdma_reg_base = 0x13000,
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.wrdma_reg_stride = 0x1000,
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.wrdma_channel_start = 5, /* ?? what's that ?? */
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.wrdma_channels = 4,
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.loopback = REG_FIELD_ID(0x1000, 15, 15, 4, 0x1000),
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.spken = REG_FIELD_ID(0x1000, 14, 14, 4, 0x1000),
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.spkmode = REG_FIELD_ID(0x1000, 10, 13, 4, 0x1000),
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.spkmono = REG_FIELD_ID(0x1000, 9, 9, 4, 0x1000),
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.micen = REG_FIELD_ID(0x1000, 8, 8, 4, 0x1000),
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.micmode = REG_FIELD_ID(0x1000, 4, 7, 4, 0x1000),
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.micmono = REG_FIELD_ID(0x1000, 3, 3, 4, 0x1000),
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.wssrc = REG_FIELD_ID(0x1000, 2, 2, 4, 0x1000),
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.bitwidth = REG_FIELD_ID(0x1000, 0, 1, 4, 0x1000),
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.rdma_dyncclk = REG_FIELD_ID(0xD000, 14, 14, 4, 0x1000),
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.rdma_bursten = REG_FIELD_ID(0xD000, 13, 13, 4, 0x1000),
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.rdma_wpscnt = REG_FIELD_ID(0xD000, 10, 12, 4, 0x1000),
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.rdma_intf = REG_FIELD_ID(0xD000, 6, 9, 4, 0x1000),
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.rdma_fifowm = REG_FIELD_ID(0xD000, 1, 5, 4, 0x1000),
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.rdma_enable = REG_FIELD_ID(0xD000, 0, 0, 4, 0x1000),
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.wrdma_dyncclk = REG_FIELD_ID(0x13000, 12, 12, 3, 0x1000),
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.wrdma_bursten = REG_FIELD_ID(0x13000, 11, 11, 3, 0x1000),
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.wrdma_wpscnt = REG_FIELD_ID(0x13000, 8, 10, 3, 0x1000),
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.wrdma_intf = REG_FIELD_ID(0x13000, 4, 7, 3, 0x1000),
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.wrdma_fifowm = REG_FIELD_ID(0x13000, 1, 3, 3, 0x1000),
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.wrdma_enable = REG_FIELD_ID(0x13000, 0, 0, 3, 0x1000),
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.hdmi_tx_ctl_addr = 0x1000,
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.hdmi_legacy_addr = 0x1008,
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.hdmi_vbit_addr = 0xc0,
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.hdmi_ch_lsb_addr = 0x48,
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.hdmi_ch_msb_addr = 0x4c,
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.ch_stride = 0x8,
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.hdmi_parity_addr = 0x34,
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.hdmi_dmactl_addr = 0x38,
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.hdmi_dma_stride = 0x4,
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.hdmi_DP_addr = 0xc8,
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.hdmi_sstream_addr = 0x1c,
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.hdmi_irq_reg_base = 0x63000,
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.hdmi_irq_ports = 1,
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.hdmi_rdma_dyncclk = REG_FIELD_ID(0x3000, 14, 14, 3, 0x1000),
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.hdmi_rdma_bursten = REG_FIELD_ID(0x3000, 13, 13, 3, 0x1000),
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.hdmi_rdma_burst8 = REG_FIELD_ID(0x3000, 15, 15, 3, 0x1000),
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.hdmi_rdma_burst16 = REG_FIELD_ID(0x3000, 16, 16, 3, 0x1000),
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.hdmi_rdma_dynburst = REG_FIELD_ID(0x3000, 18, 18, 3, 0x1000),
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.hdmi_rdma_wpscnt = REG_FIELD_ID(0x3000, 10, 12, 3, 0x1000),
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.hdmi_rdma_fifowm = REG_FIELD_ID(0x3000, 1, 5, 3, 0x1000),
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.hdmi_rdma_enable = REG_FIELD_ID(0x3000, 0, 0, 3, 0x1000),
|
||||||
|
|
||||||
|
.sstream_en = REG_FIELD(0x1c, 0, 0),
|
||||||
|
.dma_sel = REG_FIELD(0x1c, 1, 2),
|
||||||
|
.auto_bbit_en = REG_FIELD(0x1c, 3, 3),
|
||||||
|
.layout = REG_FIELD(0x1c, 4, 4),
|
||||||
|
.layout_sp = REG_FIELD(0x1c, 5, 8),
|
||||||
|
.set_sp_on_en = REG_FIELD(0x1c, 10, 10),
|
||||||
|
.dp_audio = REG_FIELD(0x1c, 11, 11),
|
||||||
|
.dp_staffing_en = REG_FIELD(0x1c, 12, 12),
|
||||||
|
.dp_sp_b_hw_en = REG_FIELD(0x1c, 13, 13),
|
||||||
|
|
||||||
|
.mute = REG_FIELD(0xc8, 0, 0),
|
||||||
|
.as_sdp_cc = REG_FIELD(0xc8, 1, 3),
|
||||||
|
.as_sdp_ct = REG_FIELD(0xc8, 4, 7),
|
||||||
|
.aif_db4 = REG_FIELD(0xc8, 8, 15),
|
||||||
|
|
||||||
|
.soft_reset = REG_FIELD(0x1000, 31, 31),
|
||||||
|
.force_reset = REG_FIELD(0x1000, 30, 30),
|
||||||
|
|
||||||
|
.use_hw_chs = REG_FIELD(0x38, 0, 0),
|
||||||
|
.use_hw_usr = REG_FIELD(0x38, 1, 1),
|
||||||
|
.hw_chs_sel = REG_FIELD(0x38, 2, 4),
|
||||||
|
.hw_usr_sel = REG_FIELD(0x38, 5, 6),
|
||||||
|
|
||||||
|
.replace_vbit = REG_FIELD(0xc0, 0, 0),
|
||||||
|
.vbit_stream = REG_FIELD(0xc0, 1, 1),
|
||||||
|
|
||||||
|
.legacy_en = REG_FIELD(0x1008, 0, 0),
|
||||||
|
.calc_en = REG_FIELD(0x34, 0, 0),
|
||||||
|
.lsb_bits = REG_FIELD(0x48, 0, 31),
|
||||||
|
.msb_bits = REG_FIELD(0x4c, 0, 16),
|
||||||
|
|
||||||
|
|
||||||
|
.clk_name = (const char*[]) {
|
||||||
|
"pcnoc-sway-clk",
|
||||||
|
"audio-core",
|
||||||
|
"pcnoc-mport-clk",
|
||||||
|
},
|
||||||
|
.num_clks = 3,
|
||||||
|
.dai_driver = msm8998_lpass_cpu_dai_driver,
|
||||||
|
.num_dai = ARRAY_SIZE(msm8998_lpass_cpu_dai_driver),
|
||||||
|
.dai_osr_clk_names = (const char *[]) {
|
||||||
|
"mclk0",
|
||||||
|
"null",
|
||||||
|
},
|
||||||
|
.dai_bit_clk_names = (const char *[]) {
|
||||||
|
"mi2s-bit-clk0",
|
||||||
|
"mi2s-bit-clk1",
|
||||||
|
},
|
||||||
|
.init = msm8998_lpass_init,
|
||||||
|
.exit = msm8998_lpass_exit,
|
||||||
|
.alloc_dma_channel = msm8998_lpass_alloc_dma_channel,
|
||||||
|
.free_dma_channel = msm8998_lpass_free_dma_channel,
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct of_device_id msm8998_lpass_cpu_device_id[] __maybe_unused = {
|
||||||
|
{.compatible = "qcom,msm8998-lpass-cpu", .data = &msm8998_data},
|
||||||
|
{}
|
||||||
|
};
|
||||||
|
MODULE_DEVICE_TABLE(of, msm8998_lpass_cpu_device_id);
|
||||||
|
|
||||||
|
static struct platform_driver msm8998_lpass_cpu_platform_driver = {
|
||||||
|
.driver = {
|
||||||
|
.name = "msm8998-lpass-cpu",
|
||||||
|
.of_match_table = of_match_ptr(msm8998_lpass_cpu_device_id),
|
||||||
|
},
|
||||||
|
.probe = asoc_qcom_lpass_cpu_platform_probe,
|
||||||
|
.remove = asoc_qcom_lpass_cpu_platform_remove,
|
||||||
|
.shutdown = asoc_qcom_lpass_cpu_platform_shutdown,
|
||||||
|
};
|
||||||
|
|
||||||
|
module_platform_driver(msm8998_lpass_cpu_platform_driver);
|
||||||
|
|
||||||
|
MODULE_DESCRIPTION("msm8998 LPASS CPU DRIVER");
|
||||||
|
MODULE_LICENSE("GPL v2");
|
||||||
Loading…
Add table
Add a link
Reference in a new issue