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linux/sound/soc/qcom/lpass-apq8016.c
Thomas Gleixner 97fb5e8d9b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 and
  only version 2 as published by the free software foundation this
  program is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 294 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
*
* lpass-apq8016.c -- ALSA SoC CPU DAI driver for APQ8016 LPASS
*/
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
#include <dt-bindings/sound/apq8016-lpass.h>
#include "lpass-lpaif-reg.h"
#include "lpass.h"
static struct snd_soc_dai_driver apq8016_lpass_cpu_dai_driver[] = {
[MI2S_PRIMARY] = {
.id = MI2S_PRIMARY,
.name = "Primary MI2S",
.playback = {
.stream_name = "Primary Playback",
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000 |
SNDRV_PCM_RATE_16000 |
SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_96000,
.rate_min = 8000,
.rate_max = 96000,
.channels_min = 1,
.channels_max = 8,
},
.probe = &asoc_qcom_lpass_cpu_dai_probe,
.ops = &asoc_qcom_lpass_cpu_dai_ops,
},
[MI2S_SECONDARY] = {
.id = MI2S_SECONDARY,
.name = "Secondary MI2S",
.playback = {
.stream_name = "Secondary Playback",
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000 |
SNDRV_PCM_RATE_16000 |
SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_96000,
.rate_min = 8000,
.rate_max = 96000,
.channels_min = 1,
.channels_max = 8,
},
.probe = &asoc_qcom_lpass_cpu_dai_probe,
.ops = &asoc_qcom_lpass_cpu_dai_ops,
},
[MI2S_TERTIARY] = {
.id = MI2S_TERTIARY,
.name = "Tertiary MI2S",
.capture = {
.stream_name = "Tertiary Capture",
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000 |
SNDRV_PCM_RATE_16000 |
SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_96000,
.rate_min = 8000,
.rate_max = 96000,
.channels_min = 1,
.channels_max = 8,
},
.probe = &asoc_qcom_lpass_cpu_dai_probe,
.ops = &asoc_qcom_lpass_cpu_dai_ops,
},
[MI2S_QUATERNARY] = {
.id = MI2S_QUATERNARY,
.name = "Quatenary MI2S",
.playback = {
.stream_name = "Quatenary Playback",
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000 |
SNDRV_PCM_RATE_16000 |
SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_96000,
.rate_min = 8000,
.rate_max = 96000,
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.stream_name = "Quatenary Capture",
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000 |
SNDRV_PCM_RATE_16000 |
SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_96000,
.rate_min = 8000,
.rate_max = 96000,
.channels_min = 1,
.channels_max = 8,
},
.probe = &asoc_qcom_lpass_cpu_dai_probe,
.ops = &asoc_qcom_lpass_cpu_dai_ops,
},
};
static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata,
int direction)
{
struct lpass_variant *v = drvdata->variant;
int chan = 0;
if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
chan = find_first_zero_bit(&drvdata->dma_ch_bit_map,
v->rdma_channels);
if (chan >= v->rdma_channels)
return -EBUSY;
} else {
chan = find_next_zero_bit(&drvdata->dma_ch_bit_map,
v->wrdma_channel_start +
v->wrdma_channels,
v->wrdma_channel_start);
if (chan >= v->wrdma_channel_start + v->wrdma_channels)
return -EBUSY;
}
set_bit(chan, &drvdata->dma_ch_bit_map);
return chan;
}
static int apq8016_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
{
clear_bit(chan, &drvdata->dma_ch_bit_map);
return 0;
}
static int apq8016_lpass_init(struct platform_device *pdev)
{
struct lpass_data *drvdata = platform_get_drvdata(pdev);
struct device *dev = &pdev->dev;
int ret;
drvdata->pcnoc_mport_clk = devm_clk_get(dev, "pcnoc-mport-clk");
if (IS_ERR(drvdata->pcnoc_mport_clk)) {
dev_err(&pdev->dev, "error getting pcnoc-mport-clk: %ld\n",
PTR_ERR(drvdata->pcnoc_mport_clk));
return PTR_ERR(drvdata->pcnoc_mport_clk);
}
ret = clk_prepare_enable(drvdata->pcnoc_mport_clk);
if (ret) {
dev_err(&pdev->dev, "Error enabling pcnoc-mport-clk: %d\n",
ret);
return ret;
}
drvdata->pcnoc_sway_clk = devm_clk_get(dev, "pcnoc-sway-clk");
if (IS_ERR(drvdata->pcnoc_sway_clk)) {
dev_err(&pdev->dev, "error getting pcnoc-sway-clk: %ld\n",
PTR_ERR(drvdata->pcnoc_sway_clk));
return PTR_ERR(drvdata->pcnoc_sway_clk);
}
ret = clk_prepare_enable(drvdata->pcnoc_sway_clk);
if (ret) {
dev_err(&pdev->dev, "Error enabling pcnoc_sway_clk: %d\n", ret);
return ret;
}
return 0;
}
static int apq8016_lpass_exit(struct platform_device *pdev)
{
struct lpass_data *drvdata = platform_get_drvdata(pdev);
clk_disable_unprepare(drvdata->pcnoc_mport_clk);
clk_disable_unprepare(drvdata->pcnoc_sway_clk);
return 0;
}
static struct lpass_variant apq8016_data = {
.i2sctrl_reg_base = 0x1000,
.i2sctrl_reg_stride = 0x1000,
.i2s_ports = 4,
.irq_reg_base = 0x6000,
.irq_reg_stride = 0x1000,
.irq_ports = 3,
.rdma_reg_base = 0x8400,
.rdma_reg_stride = 0x1000,
.rdma_channels = 2,
.dmactl_audif_start = 1,
.wrdma_reg_base = 0xB000,
.wrdma_reg_stride = 0x1000,
.wrdma_channel_start = 5,
.wrdma_channels = 2,
.dai_driver = apq8016_lpass_cpu_dai_driver,
.num_dai = ARRAY_SIZE(apq8016_lpass_cpu_dai_driver),
.dai_osr_clk_names = (const char *[]) {
"mi2s-osr-clk0",
"mi2s-osr-clk1",
"mi2s-osr-clk2",
"mi2s-osr-clk3",
},
.dai_bit_clk_names = (const char *[]) {
"mi2s-bit-clk0",
"mi2s-bit-clk1",
"mi2s-bit-clk2",
"mi2s-bit-clk3",
},
.init = apq8016_lpass_init,
.exit = apq8016_lpass_exit,
.alloc_dma_channel = apq8016_lpass_alloc_dma_channel,
.free_dma_channel = apq8016_lpass_free_dma_channel,
};
static const struct of_device_id apq8016_lpass_cpu_device_id[] = {
{ .compatible = "qcom,lpass-cpu-apq8016", .data = &apq8016_data },
{}
};
MODULE_DEVICE_TABLE(of, apq8016_lpass_cpu_device_id);
static struct platform_driver apq8016_lpass_cpu_platform_driver = {
.driver = {
.name = "apq8016-lpass-cpu",
.of_match_table = of_match_ptr(apq8016_lpass_cpu_device_id),
},
.probe = asoc_qcom_lpass_cpu_platform_probe,
.remove = asoc_qcom_lpass_cpu_platform_remove,
};
module_platform_driver(apq8016_lpass_cpu_platform_driver);
MODULE_DESCRIPTION("APQ8016 LPASS CPU Driver");
MODULE_LICENSE("GPL v2");
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