diff options
Diffstat (limited to 'kernel/sound/soc/qcom/lpass-ipq806x.c')
-rw-r--r-- | kernel/sound/soc/qcom/lpass-ipq806x.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/kernel/sound/soc/qcom/lpass-ipq806x.c b/kernel/sound/soc/qcom/lpass-ipq806x.c new file mode 100644 index 000000000..7a4167952 --- /dev/null +++ b/kernel/sound/soc/qcom/lpass-ipq806x.c @@ -0,0 +1,109 @@ +/* + * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved. + * + * 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. + * + * lpass-ipq806x.c -- ALSA SoC CPU DAI driver for QTi LPASS + * Splited out the IPQ8064 soc specific from lpass-cpu.c + */ + +#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/soc.h> +#include <sound/soc-dai.h> + +#include "lpass-lpaif-reg.h" +#include "lpass.h" + +enum lpaif_i2s_ports { + IPQ806X_LPAIF_I2S_PORT_CODEC_SPK, + IPQ806X_LPAIF_I2S_PORT_CODEC_MIC, + IPQ806X_LPAIF_I2S_PORT_SEC_SPK, + IPQ806X_LPAIF_I2S_PORT_SEC_MIC, + IPQ806X_LPAIF_I2S_PORT_MI2S, +}; + +enum lpaif_dma_channels { + IPQ806X_LPAIF_RDMA_CHAN_MI2S, + IPQ806X_LPAIF_RDMA_CHAN_PCM0, + IPQ806X_LPAIF_RDMA_CHAN_PCM1, +}; + +static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = { + .id = IPQ806X_LPAIF_I2S_PORT_MI2S, + .playback = { + .stream_name = "lpass-cpu-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, +}; + +static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata) +{ + return IPQ806X_LPAIF_RDMA_CHAN_MI2S; +} + +static int ipq806x_lpass_free_dma_channel(struct lpass_data *drvdata, int chan) +{ + return 0; +} + +static struct lpass_variant ipq806x_data = { + .i2sctrl_reg_base = 0x0010, + .i2sctrl_reg_stride = 0x04, + .i2s_ports = 5, + .irq_reg_base = 0x3000, + .irq_reg_stride = 0x1000, + .irq_ports = 3, + .rdma_reg_base = 0x6000, + .rdma_reg_stride = 0x1000, + .rdma_channels = 4, + .dai_driver = &ipq806x_lpass_cpu_dai_driver, + .num_dai = 1, + .alloc_dma_channel = ipq806x_lpass_alloc_dma_channel, + .free_dma_channel = ipq806x_lpass_free_dma_channel, +}; + +static const struct of_device_id ipq806x_lpass_cpu_device_id[] = { + { .compatible = "qcom,lpass-cpu", .data = &ipq806x_data }, + {} +}; +MODULE_DEVICE_TABLE(of, ipq806x_lpass_cpu_device_id); + +static struct platform_driver ipq806x_lpass_cpu_platform_driver = { + .driver = { + .name = "lpass-cpu", + .of_match_table = of_match_ptr(ipq806x_lpass_cpu_device_id), + }, + .probe = asoc_qcom_lpass_cpu_platform_probe, + .remove = asoc_qcom_lpass_cpu_platform_remove, +}; +module_platform_driver(ipq806x_lpass_cpu_platform_driver); + +MODULE_DESCRIPTION("QTi LPASS CPU Driver"); +MODULE_LICENSE("GPL v2"); |