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933f98be60
The pointer to of_phandle_args passed to snd_soc_get_dai_name() and of_xlate_dai_name() implementations is not modified. Since it is being used only to translate passed OF node to a DAI name, it should not be modified, so mark it as const for correctness and safer code. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20210221153024.453583-1-krzk@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
924 lines
25 KiB
C
924 lines
25 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
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*
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* lpass-cpu.c -- ALSA SoC CPU DAI driver for QTi LPASS
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*/
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#include <linux/clk.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/of_device.h>
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#include <linux/platform_device.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <linux/regmap.h>
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#include <sound/soc.h>
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#include <sound/soc-dai.h>
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#include "lpass-lpaif-reg.h"
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#include "lpass.h"
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#define LPASS_CPU_MAX_MI2S_LINES 4
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#define LPASS_CPU_I2S_SD0_MASK BIT(0)
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#define LPASS_CPU_I2S_SD1_MASK BIT(1)
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#define LPASS_CPU_I2S_SD2_MASK BIT(2)
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#define LPASS_CPU_I2S_SD3_MASK BIT(3)
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#define LPASS_CPU_I2S_SD0_1_MASK GENMASK(1, 0)
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#define LPASS_CPU_I2S_SD2_3_MASK GENMASK(3, 2)
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#define LPASS_CPU_I2S_SD0_1_2_MASK GENMASK(2, 0)
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#define LPASS_CPU_I2S_SD0_1_2_3_MASK GENMASK(3, 0)
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static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
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struct lpaif_i2sctl *i2sctl, struct regmap *map)
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{
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struct lpass_data *drvdata = dev_get_drvdata(dev);
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struct lpass_variant *v = drvdata->variant;
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i2sctl->loopback = devm_regmap_field_alloc(dev, map, v->loopback);
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i2sctl->spken = devm_regmap_field_alloc(dev, map, v->spken);
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i2sctl->spkmode = devm_regmap_field_alloc(dev, map, v->spkmode);
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i2sctl->spkmono = devm_regmap_field_alloc(dev, map, v->spkmono);
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i2sctl->micen = devm_regmap_field_alloc(dev, map, v->micen);
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i2sctl->micmode = devm_regmap_field_alloc(dev, map, v->micmode);
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i2sctl->micmono = devm_regmap_field_alloc(dev, map, v->micmono);
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i2sctl->wssrc = devm_regmap_field_alloc(dev, map, v->wssrc);
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i2sctl->bitwidth = devm_regmap_field_alloc(dev, map, v->bitwidth);
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if (IS_ERR(i2sctl->loopback) || IS_ERR(i2sctl->spken) ||
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IS_ERR(i2sctl->spkmode) || IS_ERR(i2sctl->spkmono) ||
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IS_ERR(i2sctl->micen) || IS_ERR(i2sctl->micmode) ||
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IS_ERR(i2sctl->micmono) || IS_ERR(i2sctl->wssrc) ||
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IS_ERR(i2sctl->bitwidth))
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return -EINVAL;
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return 0;
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}
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static int lpass_cpu_daiops_set_sysclk(struct snd_soc_dai *dai, int clk_id,
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unsigned int freq, int dir)
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{
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struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
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int ret;
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ret = clk_set_rate(drvdata->mi2s_osr_clk[dai->driver->id], freq);
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if (ret)
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dev_err(dai->dev, "error setting mi2s osrclk to %u: %d\n",
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freq, ret);
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return ret;
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}
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static int lpass_cpu_daiops_startup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
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int ret;
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ret = clk_prepare_enable(drvdata->mi2s_osr_clk[dai->driver->id]);
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if (ret) {
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dev_err(dai->dev, "error in enabling mi2s osr clk: %d\n", ret);
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return ret;
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}
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ret = clk_prepare(drvdata->mi2s_bit_clk[dai->driver->id]);
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if (ret) {
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dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret);
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clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
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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 void lpass_cpu_daiops_shutdown(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
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clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
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clk_unprepare(drvdata->mi2s_bit_clk[dai->driver->id]);
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}
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static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
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{
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struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
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struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
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unsigned int id = dai->driver->id;
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snd_pcm_format_t format = params_format(params);
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unsigned int channels = params_channels(params);
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unsigned int rate = params_rate(params);
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unsigned int mode;
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unsigned int regval;
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int bitwidth, ret;
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bitwidth = snd_pcm_format_width(format);
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if (bitwidth < 0) {
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dev_err(dai->dev, "invalid bit width given: %d\n", bitwidth);
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return bitwidth;
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}
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ret = regmap_fields_write(i2sctl->loopback, id,
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LPAIF_I2SCTL_LOOPBACK_DISABLE);
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if (ret) {
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dev_err(dai->dev, "error updating loopback field: %d\n", ret);
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return ret;
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}
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ret = regmap_fields_write(i2sctl->wssrc, id,
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LPAIF_I2SCTL_WSSRC_INTERNAL);
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if (ret) {
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dev_err(dai->dev, "error updating wssrc field: %d\n", ret);
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return ret;
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}
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switch (bitwidth) {
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case 16:
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regval = LPAIF_I2SCTL_BITWIDTH_16;
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break;
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case 24:
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regval = LPAIF_I2SCTL_BITWIDTH_24;
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break;
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case 32:
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regval = LPAIF_I2SCTL_BITWIDTH_32;
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break;
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default:
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dev_err(dai->dev, "invalid bitwidth given: %d\n", bitwidth);
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return -EINVAL;
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}
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ret = regmap_fields_write(i2sctl->bitwidth, id, regval);
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if (ret) {
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dev_err(dai->dev, "error updating bitwidth field: %d\n", ret);
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return ret;
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}
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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mode = drvdata->mi2s_playback_sd_mode[id];
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else
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mode = drvdata->mi2s_capture_sd_mode[id];
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if (!mode) {
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dev_err(dai->dev, "no line is assigned\n");
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return -EINVAL;
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}
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switch (channels) {
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case 1:
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case 2:
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switch (mode) {
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case LPAIF_I2SCTL_MODE_QUAD01:
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case LPAIF_I2SCTL_MODE_6CH:
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case LPAIF_I2SCTL_MODE_8CH:
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mode = LPAIF_I2SCTL_MODE_SD0;
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break;
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case LPAIF_I2SCTL_MODE_QUAD23:
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mode = LPAIF_I2SCTL_MODE_SD2;
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break;
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}
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break;
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case 4:
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if (mode < LPAIF_I2SCTL_MODE_QUAD01) {
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dev_err(dai->dev, "cannot configure 4 channels with mode %d\n",
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mode);
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return -EINVAL;
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}
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switch (mode) {
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case LPAIF_I2SCTL_MODE_6CH:
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case LPAIF_I2SCTL_MODE_8CH:
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mode = LPAIF_I2SCTL_MODE_QUAD01;
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break;
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}
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break;
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case 6:
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if (mode < LPAIF_I2SCTL_MODE_6CH) {
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dev_err(dai->dev, "cannot configure 6 channels with mode %d\n",
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mode);
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return -EINVAL;
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}
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switch (mode) {
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case LPAIF_I2SCTL_MODE_8CH:
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mode = LPAIF_I2SCTL_MODE_6CH;
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break;
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}
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break;
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case 8:
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if (mode < LPAIF_I2SCTL_MODE_8CH) {
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dev_err(dai->dev, "cannot configure 8 channels with mode %d\n",
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mode);
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return -EINVAL;
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}
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break;
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default:
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dev_err(dai->dev, "invalid channels given: %u\n", channels);
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return -EINVAL;
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}
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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ret = regmap_fields_write(i2sctl->spkmode, id,
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LPAIF_I2SCTL_SPKMODE(mode));
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if (ret) {
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dev_err(dai->dev, "error writing to i2sctl spkr mode: %d\n",
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ret);
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return ret;
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}
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if (channels >= 2)
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ret = regmap_fields_write(i2sctl->spkmono, id,
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LPAIF_I2SCTL_SPKMONO_STEREO);
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else
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ret = regmap_fields_write(i2sctl->spkmono, id,
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LPAIF_I2SCTL_SPKMONO_MONO);
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} else {
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ret = regmap_fields_write(i2sctl->micmode, id,
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LPAIF_I2SCTL_MICMODE(mode));
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if (ret) {
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dev_err(dai->dev, "error writing to i2sctl mic mode: %d\n",
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ret);
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return ret;
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}
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if (channels >= 2)
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ret = regmap_fields_write(i2sctl->micmono, id,
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LPAIF_I2SCTL_MICMONO_STEREO);
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else
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ret = regmap_fields_write(i2sctl->micmono, id,
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LPAIF_I2SCTL_MICMONO_MONO);
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}
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if (ret) {
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dev_err(dai->dev, "error writing to i2sctl channels mode: %d\n",
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ret);
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return ret;
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}
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ret = clk_set_rate(drvdata->mi2s_bit_clk[id],
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rate * bitwidth * 2);
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if (ret) {
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dev_err(dai->dev, "error setting mi2s bitclk to %u: %d\n",
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rate * bitwidth * 2, ret);
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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 lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
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int cmd, struct snd_soc_dai *dai)
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{
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struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
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struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
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unsigned int id = dai->driver->id;
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int ret = -EINVAL;
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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ret = regmap_fields_write(i2sctl->spken, id,
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LPAIF_I2SCTL_SPKEN_ENABLE);
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} else {
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ret = regmap_fields_write(i2sctl->micen, id,
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LPAIF_I2SCTL_MICEN_ENABLE);
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}
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if (ret)
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dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
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ret);
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ret = clk_enable(drvdata->mi2s_bit_clk[id]);
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if (ret) {
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dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret);
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clk_disable(drvdata->mi2s_osr_clk[id]);
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return ret;
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}
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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ret = regmap_fields_write(i2sctl->spken, id,
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LPAIF_I2SCTL_SPKEN_DISABLE);
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} else {
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ret = regmap_fields_write(i2sctl->micen, id,
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LPAIF_I2SCTL_MICEN_DISABLE);
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}
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if (ret)
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dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
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ret);
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clk_disable(drvdata->mi2s_bit_clk[dai->driver->id]);
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break;
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}
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return ret;
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}
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const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
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.set_sysclk = lpass_cpu_daiops_set_sysclk,
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.startup = lpass_cpu_daiops_startup,
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.shutdown = lpass_cpu_daiops_shutdown,
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.hw_params = lpass_cpu_daiops_hw_params,
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.trigger = lpass_cpu_daiops_trigger,
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};
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EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
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int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai)
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{
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struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
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int ret;
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/* ensure audio hardware is disabled */
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ret = regmap_write(drvdata->lpaif_map,
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LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id), 0);
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if (ret)
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dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
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return ret;
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}
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EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_probe);
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static int asoc_qcom_of_xlate_dai_name(struct snd_soc_component *component,
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const struct of_phandle_args *args,
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const char **dai_name)
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{
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struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
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struct lpass_variant *variant = drvdata->variant;
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int id = args->args[0];
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int ret = -EINVAL;
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int i;
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for (i = 0; i < variant->num_dai; i++) {
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if (variant->dai_driver[i].id == id) {
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*dai_name = variant->dai_driver[i].name;
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ret = 0;
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break;
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}
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}
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return ret;
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}
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static const struct snd_soc_component_driver lpass_cpu_comp_driver = {
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.name = "lpass-cpu",
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.of_xlate_dai_name = asoc_qcom_of_xlate_dai_name,
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};
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static bool lpass_cpu_regmap_writeable(struct device *dev, unsigned int reg)
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{
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struct lpass_data *drvdata = dev_get_drvdata(dev);
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struct lpass_variant *v = drvdata->variant;
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int i;
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for (i = 0; i < v->i2s_ports; ++i)
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if (reg == LPAIF_I2SCTL_REG(v, i))
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return true;
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for (i = 0; i < v->irq_ports; ++i) {
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if (reg == LPAIF_IRQEN_REG(v, i))
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return true;
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if (reg == LPAIF_IRQCLEAR_REG(v, i))
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return true;
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}
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for (i = 0; i < v->rdma_channels; ++i) {
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if (reg == LPAIF_RDMACTL_REG(v, i))
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return true;
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if (reg == LPAIF_RDMABASE_REG(v, i))
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return true;
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if (reg == LPAIF_RDMABUFF_REG(v, i))
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return true;
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if (reg == LPAIF_RDMAPER_REG(v, i))
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return true;
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}
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for (i = 0; i < v->wrdma_channels; ++i) {
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if (reg == LPAIF_WRDMACTL_REG(v, i + v->wrdma_channel_start))
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return true;
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if (reg == LPAIF_WRDMABASE_REG(v, i + v->wrdma_channel_start))
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return true;
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if (reg == LPAIF_WRDMABUFF_REG(v, i + v->wrdma_channel_start))
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return true;
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if (reg == LPAIF_WRDMAPER_REG(v, i + v->wrdma_channel_start))
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return true;
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}
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return false;
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}
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static bool lpass_cpu_regmap_readable(struct device *dev, unsigned int reg)
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{
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struct lpass_data *drvdata = dev_get_drvdata(dev);
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struct lpass_variant *v = drvdata->variant;
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int i;
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for (i = 0; i < v->i2s_ports; ++i)
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if (reg == LPAIF_I2SCTL_REG(v, i))
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return true;
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for (i = 0; i < v->irq_ports; ++i) {
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if (reg == LPAIF_IRQEN_REG(v, i))
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return true;
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if (reg == LPAIF_IRQSTAT_REG(v, i))
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return true;
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}
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for (i = 0; i < v->rdma_channels; ++i) {
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if (reg == LPAIF_RDMACTL_REG(v, i))
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return true;
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if (reg == LPAIF_RDMABASE_REG(v, i))
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return true;
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if (reg == LPAIF_RDMABUFF_REG(v, i))
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return true;
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if (reg == LPAIF_RDMACURR_REG(v, i))
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return true;
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if (reg == LPAIF_RDMAPER_REG(v, i))
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return true;
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}
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for (i = 0; i < v->wrdma_channels; ++i) {
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if (reg == LPAIF_WRDMACTL_REG(v, i + v->wrdma_channel_start))
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return true;
|
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if (reg == LPAIF_WRDMABASE_REG(v, i + v->wrdma_channel_start))
|
|
return true;
|
|
if (reg == LPAIF_WRDMABUFF_REG(v, i + v->wrdma_channel_start))
|
|
return true;
|
|
if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start))
|
|
return true;
|
|
if (reg == LPAIF_WRDMAPER_REG(v, i + v->wrdma_channel_start))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool lpass_cpu_regmap_volatile(struct device *dev, unsigned int reg)
|
|
{
|
|
struct lpass_data *drvdata = dev_get_drvdata(dev);
|
|
struct lpass_variant *v = drvdata->variant;
|
|
int i;
|
|
|
|
for (i = 0; i < v->irq_ports; ++i)
|
|
if (reg == LPAIF_IRQSTAT_REG(v, i))
|
|
return true;
|
|
|
|
for (i = 0; i < v->rdma_channels; ++i)
|
|
if (reg == LPAIF_RDMACURR_REG(v, i))
|
|
return true;
|
|
|
|
for (i = 0; i < v->wrdma_channels; ++i)
|
|
if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static struct regmap_config lpass_cpu_regmap_config = {
|
|
.name = "lpass_cpu",
|
|
.reg_bits = 32,
|
|
.reg_stride = 4,
|
|
.val_bits = 32,
|
|
.writeable_reg = lpass_cpu_regmap_writeable,
|
|
.readable_reg = lpass_cpu_regmap_readable,
|
|
.volatile_reg = lpass_cpu_regmap_volatile,
|
|
.cache_type = REGCACHE_FLAT,
|
|
};
|
|
|
|
static int lpass_hdmi_init_bitfields(struct device *dev, struct regmap *map)
|
|
{
|
|
struct lpass_data *drvdata = dev_get_drvdata(dev);
|
|
struct lpass_variant *v = drvdata->variant;
|
|
unsigned int i;
|
|
struct lpass_hdmi_tx_ctl *tx_ctl;
|
|
struct regmap_field *legacy_en;
|
|
struct lpass_vbit_ctrl *vbit_ctl;
|
|
struct regmap_field *tx_parity;
|
|
struct lpass_dp_metadata_ctl *meta_ctl;
|
|
struct lpass_sstream_ctl *sstream_ctl;
|
|
struct regmap_field *ch_msb;
|
|
struct regmap_field *ch_lsb;
|
|
struct lpass_hdmitx_dmactl *tx_dmactl;
|
|
int rval;
|
|
|
|
tx_ctl = devm_kzalloc(dev, sizeof(*tx_ctl), GFP_KERNEL);
|
|
if (!tx_ctl)
|
|
return -ENOMEM;
|
|
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->soft_reset, tx_ctl->soft_reset);
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->force_reset, tx_ctl->force_reset);
|
|
drvdata->tx_ctl = tx_ctl;
|
|
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->legacy_en, legacy_en);
|
|
drvdata->hdmitx_legacy_en = legacy_en;
|
|
|
|
vbit_ctl = devm_kzalloc(dev, sizeof(*vbit_ctl), GFP_KERNEL);
|
|
if (!vbit_ctl)
|
|
return -ENOMEM;
|
|
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->replace_vbit, vbit_ctl->replace_vbit);
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->vbit_stream, vbit_ctl->vbit_stream);
|
|
drvdata->vbit_ctl = vbit_ctl;
|
|
|
|
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->calc_en, tx_parity);
|
|
drvdata->hdmitx_parity_calc_en = tx_parity;
|
|
|
|
meta_ctl = devm_kzalloc(dev, sizeof(*meta_ctl), GFP_KERNEL);
|
|
if (!meta_ctl)
|
|
return -ENOMEM;
|
|
|
|
rval = devm_regmap_field_bulk_alloc(dev, map, &meta_ctl->mute, &v->mute, 7);
|
|
if (rval)
|
|
return rval;
|
|
drvdata->meta_ctl = meta_ctl;
|
|
|
|
sstream_ctl = devm_kzalloc(dev, sizeof(*sstream_ctl), GFP_KERNEL);
|
|
if (!sstream_ctl)
|
|
return -ENOMEM;
|
|
|
|
rval = devm_regmap_field_bulk_alloc(dev, map, &sstream_ctl->sstream_en, &v->sstream_en, 9);
|
|
if (rval)
|
|
return rval;
|
|
|
|
drvdata->sstream_ctl = sstream_ctl;
|
|
|
|
for (i = 0; i < LPASS_MAX_HDMI_DMA_CHANNELS; i++) {
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->msb_bits, ch_msb);
|
|
drvdata->hdmitx_ch_msb[i] = ch_msb;
|
|
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->lsb_bits, ch_lsb);
|
|
drvdata->hdmitx_ch_lsb[i] = ch_lsb;
|
|
|
|
tx_dmactl = devm_kzalloc(dev, sizeof(*tx_dmactl), GFP_KERNEL);
|
|
if (!tx_dmactl)
|
|
return -ENOMEM;
|
|
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->use_hw_chs, tx_dmactl->use_hw_chs);
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->use_hw_usr, tx_dmactl->use_hw_usr);
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->hw_chs_sel, tx_dmactl->hw_chs_sel);
|
|
QCOM_REGMAP_FIELD_ALLOC(dev, map, v->hw_usr_sel, tx_dmactl->hw_usr_sel);
|
|
drvdata->hdmi_tx_dmactl[i] = tx_dmactl;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static bool lpass_hdmi_regmap_writeable(struct device *dev, unsigned int reg)
|
|
{
|
|
struct lpass_data *drvdata = dev_get_drvdata(dev);
|
|
struct lpass_variant *v = drvdata->variant;
|
|
int i;
|
|
|
|
if (reg == LPASS_HDMI_TX_CTL_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_VBIT_CTL_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_PARITY_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_DP_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_SSTREAM_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMITX_APP_IRQEN_REG(v))
|
|
return true;
|
|
if (reg == LPASS_HDMITX_APP_IRQCLEAR_REG(v))
|
|
return true;
|
|
|
|
for (i = 0; i < v->hdmi_rdma_channels; i++) {
|
|
if (reg == LPASS_HDMI_TX_CH_LSB_ADDR(v, i))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_CH_MSB_ADDR(v, i))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_DMA_ADDR(v, i))
|
|
return true;
|
|
}
|
|
|
|
for (i = 0; i < v->hdmi_rdma_channels; ++i) {
|
|
if (reg == LPAIF_HDMI_RDMACTL_REG(v, i))
|
|
return true;
|
|
if (reg == LPAIF_HDMI_RDMABASE_REG(v, i))
|
|
return true;
|
|
if (reg == LPAIF_HDMI_RDMABUFF_REG(v, i))
|
|
return true;
|
|
if (reg == LPAIF_HDMI_RDMAPER_REG(v, i))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool lpass_hdmi_regmap_readable(struct device *dev, unsigned int reg)
|
|
{
|
|
struct lpass_data *drvdata = dev_get_drvdata(dev);
|
|
struct lpass_variant *v = drvdata->variant;
|
|
int i;
|
|
|
|
if (reg == LPASS_HDMI_TX_CTL_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_VBIT_CTL_ADDR(v))
|
|
return true;
|
|
|
|
for (i = 0; i < v->hdmi_rdma_channels; i++) {
|
|
if (reg == LPASS_HDMI_TX_CH_LSB_ADDR(v, i))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_CH_MSB_ADDR(v, i))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_DMA_ADDR(v, i))
|
|
return true;
|
|
}
|
|
|
|
if (reg == LPASS_HDMI_TX_PARITY_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_DP_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_SSTREAM_ADDR(v))
|
|
return true;
|
|
if (reg == LPASS_HDMITX_APP_IRQEN_REG(v))
|
|
return true;
|
|
if (reg == LPASS_HDMITX_APP_IRQSTAT_REG(v))
|
|
return true;
|
|
|
|
for (i = 0; i < v->hdmi_rdma_channels; ++i) {
|
|
if (reg == LPAIF_HDMI_RDMACTL_REG(v, i))
|
|
return true;
|
|
if (reg == LPAIF_HDMI_RDMABASE_REG(v, i))
|
|
return true;
|
|
if (reg == LPAIF_HDMI_RDMABUFF_REG(v, i))
|
|
return true;
|
|
if (reg == LPAIF_HDMI_RDMAPER_REG(v, i))
|
|
return true;
|
|
if (reg == LPAIF_HDMI_RDMACURR_REG(v, i))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool lpass_hdmi_regmap_volatile(struct device *dev, unsigned int reg)
|
|
{
|
|
struct lpass_data *drvdata = dev_get_drvdata(dev);
|
|
struct lpass_variant *v = drvdata->variant;
|
|
int i;
|
|
|
|
if (reg == LPASS_HDMITX_APP_IRQSTAT_REG(v))
|
|
return true;
|
|
if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v))
|
|
return true;
|
|
|
|
for (i = 0; i < v->hdmi_rdma_channels; ++i) {
|
|
if (reg == LPAIF_HDMI_RDMACURR_REG(v, i))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static struct regmap_config lpass_hdmi_regmap_config = {
|
|
.name = "lpass_hdmi",
|
|
.reg_bits = 32,
|
|
.reg_stride = 4,
|
|
.val_bits = 32,
|
|
.writeable_reg = lpass_hdmi_regmap_writeable,
|
|
.readable_reg = lpass_hdmi_regmap_readable,
|
|
.volatile_reg = lpass_hdmi_regmap_volatile,
|
|
.cache_type = REGCACHE_FLAT,
|
|
};
|
|
|
|
static unsigned int of_lpass_cpu_parse_sd_lines(struct device *dev,
|
|
struct device_node *node,
|
|
const char *name)
|
|
{
|
|
unsigned int lines[LPASS_CPU_MAX_MI2S_LINES];
|
|
unsigned int sd_line_mask = 0;
|
|
int num_lines, i;
|
|
|
|
num_lines = of_property_read_variable_u32_array(node, name, lines, 0,
|
|
LPASS_CPU_MAX_MI2S_LINES);
|
|
if (num_lines < 0)
|
|
return LPAIF_I2SCTL_MODE_NONE;
|
|
|
|
for (i = 0; i < num_lines; i++)
|
|
sd_line_mask |= BIT(lines[i]);
|
|
|
|
switch (sd_line_mask) {
|
|
case LPASS_CPU_I2S_SD0_MASK:
|
|
return LPAIF_I2SCTL_MODE_SD0;
|
|
case LPASS_CPU_I2S_SD1_MASK:
|
|
return LPAIF_I2SCTL_MODE_SD1;
|
|
case LPASS_CPU_I2S_SD2_MASK:
|
|
return LPAIF_I2SCTL_MODE_SD2;
|
|
case LPASS_CPU_I2S_SD3_MASK:
|
|
return LPAIF_I2SCTL_MODE_SD3;
|
|
case LPASS_CPU_I2S_SD0_1_MASK:
|
|
return LPAIF_I2SCTL_MODE_QUAD01;
|
|
case LPASS_CPU_I2S_SD2_3_MASK:
|
|
return LPAIF_I2SCTL_MODE_QUAD23;
|
|
case LPASS_CPU_I2S_SD0_1_2_MASK:
|
|
return LPAIF_I2SCTL_MODE_6CH;
|
|
case LPASS_CPU_I2S_SD0_1_2_3_MASK:
|
|
return LPAIF_I2SCTL_MODE_8CH;
|
|
default:
|
|
dev_err(dev, "Unsupported SD line mask: %#x\n", sd_line_mask);
|
|
return LPAIF_I2SCTL_MODE_NONE;
|
|
}
|
|
}
|
|
|
|
static void of_lpass_cpu_parse_dai_data(struct device *dev,
|
|
struct lpass_data *data)
|
|
{
|
|
struct device_node *node;
|
|
int ret, id;
|
|
|
|
/* Allow all channels by default for backwards compatibility */
|
|
for (id = 0; id < data->variant->num_dai; id++) {
|
|
data->mi2s_playback_sd_mode[id] = LPAIF_I2SCTL_MODE_8CH;
|
|
data->mi2s_capture_sd_mode[id] = LPAIF_I2SCTL_MODE_8CH;
|
|
}
|
|
|
|
for_each_child_of_node(dev->of_node, node) {
|
|
ret = of_property_read_u32(node, "reg", &id);
|
|
if (ret || id < 0 || id >= data->variant->num_dai) {
|
|
dev_err(dev, "valid dai id not found: %d\n", ret);
|
|
continue;
|
|
}
|
|
if (id == LPASS_DP_RX) {
|
|
data->hdmi_port_enable = 1;
|
|
} else {
|
|
data->mi2s_playback_sd_mode[id] =
|
|
of_lpass_cpu_parse_sd_lines(dev, node,
|
|
"qcom,playback-sd-lines");
|
|
data->mi2s_capture_sd_mode[id] =
|
|
of_lpass_cpu_parse_sd_lines(dev, node,
|
|
"qcom,capture-sd-lines");
|
|
}
|
|
}
|
|
}
|
|
|
|
int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
|
|
{
|
|
struct lpass_data *drvdata;
|
|
struct device_node *dsp_of_node;
|
|
struct resource *res;
|
|
struct lpass_variant *variant;
|
|
struct device *dev = &pdev->dev;
|
|
const struct of_device_id *match;
|
|
int ret, i, dai_id;
|
|
|
|
dsp_of_node = of_parse_phandle(pdev->dev.of_node, "qcom,adsp", 0);
|
|
if (dsp_of_node) {
|
|
dev_err(dev, "DSP exists and holds audio resources\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
drvdata = devm_kzalloc(dev, sizeof(struct lpass_data), GFP_KERNEL);
|
|
if (!drvdata)
|
|
return -ENOMEM;
|
|
platform_set_drvdata(pdev, drvdata);
|
|
|
|
match = of_match_device(dev->driver->of_match_table, dev);
|
|
if (!match || !match->data)
|
|
return -EINVAL;
|
|
|
|
drvdata->variant = (struct lpass_variant *)match->data;
|
|
variant = drvdata->variant;
|
|
|
|
of_lpass_cpu_parse_dai_data(dev, drvdata);
|
|
|
|
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpass-lpaif");
|
|
|
|
drvdata->lpaif = devm_ioremap_resource(dev, res);
|
|
if (IS_ERR(drvdata->lpaif))
|
|
return PTR_ERR(drvdata->lpaif);
|
|
|
|
lpass_cpu_regmap_config.max_register = LPAIF_WRDMAPER_REG(variant,
|
|
variant->wrdma_channels +
|
|
variant->wrdma_channel_start);
|
|
|
|
drvdata->lpaif_map = devm_regmap_init_mmio(dev, drvdata->lpaif,
|
|
&lpass_cpu_regmap_config);
|
|
if (IS_ERR(drvdata->lpaif_map)) {
|
|
dev_err(dev, "error initializing regmap: %ld\n",
|
|
PTR_ERR(drvdata->lpaif_map));
|
|
return PTR_ERR(drvdata->lpaif_map);
|
|
}
|
|
|
|
if (drvdata->hdmi_port_enable) {
|
|
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpass-hdmiif");
|
|
|
|
drvdata->hdmiif = devm_ioremap_resource(dev, res);
|
|
if (IS_ERR(drvdata->hdmiif))
|
|
return PTR_ERR(drvdata->hdmiif);
|
|
|
|
lpass_hdmi_regmap_config.max_register = LPAIF_HDMI_RDMAPER_REG(variant,
|
|
variant->hdmi_rdma_channels - 1);
|
|
drvdata->hdmiif_map = devm_regmap_init_mmio(dev, drvdata->hdmiif,
|
|
&lpass_hdmi_regmap_config);
|
|
if (IS_ERR(drvdata->hdmiif_map)) {
|
|
dev_err(dev, "error initializing regmap: %ld\n",
|
|
PTR_ERR(drvdata->hdmiif_map));
|
|
return PTR_ERR(drvdata->hdmiif_map);
|
|
}
|
|
}
|
|
|
|
if (variant->init) {
|
|
ret = variant->init(pdev);
|
|
if (ret) {
|
|
dev_err(dev, "error initializing variant: %d\n", ret);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < variant->num_dai; i++) {
|
|
dai_id = variant->dai_driver[i].id;
|
|
if (dai_id == LPASS_DP_RX)
|
|
continue;
|
|
|
|
drvdata->mi2s_osr_clk[dai_id] = devm_clk_get(dev,
|
|
variant->dai_osr_clk_names[i]);
|
|
if (IS_ERR(drvdata->mi2s_osr_clk[dai_id])) {
|
|
dev_warn(dev,
|
|
"%s() error getting optional %s: %ld\n",
|
|
__func__,
|
|
variant->dai_osr_clk_names[i],
|
|
PTR_ERR(drvdata->mi2s_osr_clk[dai_id]));
|
|
|
|
drvdata->mi2s_osr_clk[dai_id] = NULL;
|
|
}
|
|
|
|
drvdata->mi2s_bit_clk[dai_id] = devm_clk_get(dev,
|
|
variant->dai_bit_clk_names[i]);
|
|
if (IS_ERR(drvdata->mi2s_bit_clk[dai_id])) {
|
|
dev_err(dev,
|
|
"error getting %s: %ld\n",
|
|
variant->dai_bit_clk_names[i],
|
|
PTR_ERR(drvdata->mi2s_bit_clk[dai_id]));
|
|
return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
|
|
}
|
|
}
|
|
|
|
/* Allocation for i2sctl regmap fields */
|
|
drvdata->i2sctl = devm_kzalloc(&pdev->dev, sizeof(struct lpaif_i2sctl),
|
|
GFP_KERNEL);
|
|
|
|
/* Initialize bitfields for dai I2SCTL register */
|
|
ret = lpass_cpu_init_i2sctl_bitfields(dev, drvdata->i2sctl,
|
|
drvdata->lpaif_map);
|
|
if (ret) {
|
|
dev_err(dev, "error init i2sctl field: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
if (drvdata->hdmi_port_enable) {
|
|
ret = lpass_hdmi_init_bitfields(dev, drvdata->hdmiif_map);
|
|
if (ret) {
|
|
dev_err(dev, "%s error hdmi init failed\n", __func__);
|
|
return ret;
|
|
}
|
|
}
|
|
ret = devm_snd_soc_register_component(dev,
|
|
&lpass_cpu_comp_driver,
|
|
variant->dai_driver,
|
|
variant->num_dai);
|
|
if (ret) {
|
|
dev_err(dev, "error registering cpu driver: %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
ret = asoc_qcom_lpass_platform_register(pdev);
|
|
if (ret) {
|
|
dev_err(dev, "error registering platform driver: %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
err:
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_probe);
|
|
|
|
int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev)
|
|
{
|
|
struct lpass_data *drvdata = platform_get_drvdata(pdev);
|
|
|
|
if (drvdata->variant->exit)
|
|
drvdata->variant->exit(pdev);
|
|
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_remove);
|
|
|
|
void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev)
|
|
{
|
|
struct lpass_data *drvdata = platform_get_drvdata(pdev);
|
|
|
|
if (drvdata->variant->exit)
|
|
drvdata->variant->exit(pdev);
|
|
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_shutdown);
|
|
|
|
MODULE_DESCRIPTION("QTi LPASS CPU Driver");
|
|
MODULE_LICENSE("GPL v2");
|