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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-19 05:18:41 +07:00
6db1c6ba95
This patch removes hardcoded dma channel value in lpass driver, Now the dma channel allocation happens in the SOC specific layer. This will allow different LPASS integrations to use the lpass driver in more generic way. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Tested-by: Kenneth Westfield <kwestfie@codeaurora.org> Acked-by: Kenneth Westfield <kwestfie@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.org>
110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
/*
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* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* lpass-ipq806x.c -- ALSA SoC CPU DAI driver for QTi LPASS
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* Splited out the IPQ8064 soc specific from lpass-cpu.c
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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 <sound/pcm.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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enum lpaif_i2s_ports {
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IPQ806X_LPAIF_I2S_PORT_CODEC_SPK,
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IPQ806X_LPAIF_I2S_PORT_CODEC_MIC,
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IPQ806X_LPAIF_I2S_PORT_SEC_SPK,
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IPQ806X_LPAIF_I2S_PORT_SEC_MIC,
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IPQ806X_LPAIF_I2S_PORT_MI2S,
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};
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enum lpaif_dma_channels {
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IPQ806X_LPAIF_RDMA_CHAN_MI2S,
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IPQ806X_LPAIF_RDMA_CHAN_PCM0,
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IPQ806X_LPAIF_RDMA_CHAN_PCM1,
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};
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static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = {
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.id = IPQ806X_LPAIF_I2S_PORT_MI2S,
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.playback = {
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.stream_name = "lpass-cpu-playback",
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.formats = SNDRV_PCM_FMTBIT_S16 |
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SNDRV_PCM_FMTBIT_S24 |
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SNDRV_PCM_FMTBIT_S32,
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.rates = SNDRV_PCM_RATE_8000 |
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SNDRV_PCM_RATE_16000 |
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SNDRV_PCM_RATE_32000 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_96000,
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.rate_min = 8000,
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.rate_max = 96000,
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.channels_min = 1,
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.channels_max = 8,
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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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int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata)
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{
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return IPQ806X_LPAIF_RDMA_CHAN_MI2S;
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}
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int ipq806x_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
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{
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return 0;
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}
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struct lpass_variant ipq806x_data = {
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.i2sctrl_reg_base = 0x0010,
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.i2sctrl_reg_stride = 0x04,
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.i2s_ports = 5,
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.irq_reg_base = 0x3000,
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.irq_reg_stride = 0x1000,
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.irq_ports = 3,
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.rdma_reg_base = 0x6000,
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.rdma_reg_stride = 0x1000,
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.rdma_channels = 4,
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.dai_driver = &ipq806x_lpass_cpu_dai_driver,
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.num_dai = 1,
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.alloc_dma_channel = ipq806x_lpass_alloc_dma_channel,
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.free_dma_channel = ipq806x_lpass_free_dma_channel,
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};
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static const struct of_device_id ipq806x_lpass_cpu_device_id[] = {
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{ .compatible = "qcom,lpass-cpu", .data = &ipq806x_data },
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{}
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};
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MODULE_DEVICE_TABLE(of, ipq806x_lpass_cpu_device_id);
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static struct platform_driver ipq806x_lpass_cpu_platform_driver = {
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.driver = {
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.name = "lpass-cpu",
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.of_match_table = of_match_ptr(ipq806x_lpass_cpu_device_id),
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},
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.probe = asoc_qcom_lpass_cpu_platform_probe,
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.remove = asoc_qcom_lpass_cpu_platform_remove,
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};
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module_platform_driver(ipq806x_lpass_cpu_platform_driver);
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MODULE_DESCRIPTION("QTi LPASS CPU Driver");
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MODULE_LICENSE("GPL v2");
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