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linux/sound/soc/qcom/lpass-hdmi.c
Krzysztof Kozlowski bb3392453d
ASoC: qcom: Fix trivial code style issues 
Fix few trivial code style issues, pointed out by checkpatch, so they do
not get copied to new code (when old code is used as template):

  WARNING: Prefer "GPL" over "GPL v2" - see commit bf7fbeeae6 ("module: Cure the MODULE_LICENSE "GPL" vs. "GPL v2" bogosity")
  WARNING: function definition argument 'struct platform_device *' should also have an identifier name
  ERROR: code indent should use tabs where possible
  WARNING: please, no spaces at the start of a line
  WARNING: Missing a blank line after declarations
  WARNING: unnecessary whitespace before a quoted newline

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20231204100048.211800-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-12-18 14:04:25 +00:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*
* lpass-hdmi.c -- ALSA SoC HDMI-CPU DAI driver for QTi LPASS HDMI
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <sound/pcm_params.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
#include <dt-bindings/sound/sc7180-lpass.h>
#include "lpass-lpaif-reg.h"
#include "lpass.h"
static int lpass_hdmi_daiops_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
snd_pcm_format_t format = params_format(params);
unsigned int rate = params_rate(params);
unsigned int channels = params_channels(params);
unsigned int ret;
int bitwidth;
unsigned int word_length;
unsigned int ch_sts_buf0;
unsigned int ch_sts_buf1;
unsigned int data_format;
unsigned int sampling_freq;
unsigned int ch = 0;
struct lpass_dp_metadata_ctl *meta_ctl = drvdata->meta_ctl;
struct lpass_sstream_ctl *sstream_ctl = drvdata->sstream_ctl;
bitwidth = snd_pcm_format_width(format);
if (bitwidth < 0) {
dev_err(dai->dev, "%s invalid bit width given : %d\n",
__func__, bitwidth);
return bitwidth;
}
switch (bitwidth) {
case 16:
word_length = LPASS_DP_AUDIO_BITWIDTH16;
break;
case 24:
word_length = LPASS_DP_AUDIO_BITWIDTH24;
break;
default:
dev_err(dai->dev, "%s invalid bit width given : %d\n",
__func__, bitwidth);
return -EINVAL;
}
switch (rate) {
case 32000:
sampling_freq = LPASS_SAMPLING_FREQ32;
break;
case 44100:
sampling_freq = LPASS_SAMPLING_FREQ44;
break;
case 48000:
sampling_freq = LPASS_SAMPLING_FREQ48;
break;
default:
dev_err(dai->dev, "%s invalid bit width given : %d\n",
__func__, bitwidth);
return -EINVAL;
}
data_format = LPASS_DATA_FORMAT_LINEAR;
ch_sts_buf0 = (((data_format << LPASS_DATA_FORMAT_SHIFT) & LPASS_DATA_FORMAT_MASK)
| ((sampling_freq << LPASS_FREQ_BIT_SHIFT) & LPASS_FREQ_BIT_MASK));
ch_sts_buf1 = (word_length) & LPASS_WORDLENGTH_MASK;
ret = regmap_field_write(drvdata->tx_ctl->soft_reset, LPASS_TX_CTL_RESET);
if (ret)
return ret;
ret = regmap_field_write(drvdata->tx_ctl->soft_reset, LPASS_TX_CTL_CLEAR);
if (ret)
return ret;
ret = regmap_field_write(drvdata->hdmitx_legacy_en, LPASS_HDMITX_LEGACY_DISABLE);
if (ret)
return ret;
ret = regmap_field_write(drvdata->hdmitx_parity_calc_en, HDMITX_PARITY_CALC_EN);
if (ret)
return ret;
ret = regmap_field_write(drvdata->vbit_ctl->replace_vbit, REPLACE_VBIT);
if (ret)
return ret;
ret = regmap_field_write(drvdata->vbit_ctl->vbit_stream, LINEAR_PCM_DATA);
if (ret)
return ret;
ret = regmap_field_write(drvdata->hdmitx_ch_msb[0], ch_sts_buf1);
if (ret)
return ret;
ret = regmap_field_write(drvdata->hdmitx_ch_lsb[0], ch_sts_buf0);
if (ret)
return ret;
ret = regmap_field_write(drvdata->hdmi_tx_dmactl[0]->use_hw_chs, HW_MODE);
if (ret)
return ret;
ret = regmap_field_write(drvdata->hdmi_tx_dmactl[0]->hw_chs_sel, SW_MODE);
if (ret)
return ret;
ret = regmap_field_write(drvdata->hdmi_tx_dmactl[0]->use_hw_usr, HW_MODE);
if (ret)
return ret;
ret = regmap_field_write(drvdata->hdmi_tx_dmactl[0]->hw_usr_sel, SW_MODE);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->mute, LPASS_MUTE_ENABLE);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->as_sdp_cc, channels - 1);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->as_sdp_ct, LPASS_META_DEFAULT_VAL);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->aif_db4, LPASS_META_DEFAULT_VAL);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->frequency, sampling_freq);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->mst_index, LPASS_META_DEFAULT_VAL);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->dptx_index, LPASS_META_DEFAULT_VAL);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->sstream_en, LPASS_SSTREAM_DISABLE);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->dma_sel, ch);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->auto_bbit_en, LPASS_SSTREAM_DEFAULT_ENABLE);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->layout, LPASS_SSTREAM_DEFAULT_DISABLE);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->layout_sp, LPASS_LAYOUT_SP_DEFAULT);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->dp_audio, LPASS_SSTREAM_DEFAULT_ENABLE);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->set_sp_on_en, LPASS_SSTREAM_DEFAULT_ENABLE);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->dp_sp_b_hw_en, LPASS_SSTREAM_DEFAULT_ENABLE);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->dp_staffing_en, LPASS_SSTREAM_DEFAULT_ENABLE);
return ret;
}
static int lpass_hdmi_daiops_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
int ret;
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
ret = regmap_field_write(drvdata->sstream_ctl->sstream_en, LPASS_SSTREAM_ENABLE);
if (ret)
return ret;
ret = regmap_field_write(drvdata->meta_ctl->mute, LPASS_MUTE_DISABLE);
return ret;
}
static int lpass_hdmi_daiops_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
struct lpass_dp_metadata_ctl *meta_ctl = drvdata->meta_ctl;
struct lpass_sstream_ctl *sstream_ctl = drvdata->sstream_ctl;
int ret = -EINVAL;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
ret = regmap_field_write(sstream_ctl->sstream_en, LPASS_SSTREAM_ENABLE);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->mute, LPASS_MUTE_DISABLE);
if (ret)
return ret;
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
ret = regmap_field_write(sstream_ctl->sstream_en, LPASS_SSTREAM_DISABLE);
if (ret)
return ret;
ret = regmap_field_write(meta_ctl->mute, LPASS_MUTE_ENABLE);
if (ret)
return ret;
ret = regmap_field_write(sstream_ctl->dp_audio, 0);
if (ret)
return ret;
break;
}
return ret;
}
const struct snd_soc_dai_ops asoc_qcom_lpass_hdmi_dai_ops = {
.hw_params = lpass_hdmi_daiops_hw_params,
.prepare = lpass_hdmi_daiops_prepare,
.trigger = lpass_hdmi_daiops_trigger,
};
EXPORT_SYMBOL_GPL(asoc_qcom_lpass_hdmi_dai_ops);
MODULE_DESCRIPTION("QTi LPASS HDMI Driver");
MODULE_LICENSE("GPL");
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