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-rw-r--r--sound/soc/qcom/lpass-ipq806x.c181
1 files changed, 181 insertions, 0 deletions
diff --git a/sound/soc/qcom/lpass-ipq806x.c b/sound/soc/qcom/lpass-ipq806x.c
new file mode 100644
index 000000000..ef8a7984f
--- /dev/null
+++ b/sound/soc/qcom/lpass-ipq806x.c
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
+ *
+ * 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_init(struct platform_device *pdev)
+{
+ struct lpass_data *drvdata = platform_get_drvdata(pdev);
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ drvdata->ahbix_clk = devm_clk_get(dev, "ahbix-clk");
+ if (IS_ERR(drvdata->ahbix_clk)) {
+ dev_err(dev, "error getting ahbix-clk: %ld\n",
+ PTR_ERR(drvdata->ahbix_clk));
+ ret = PTR_ERR(drvdata->ahbix_clk);
+ goto err_ahbix_clk;
+ }
+
+ ret = clk_set_rate(drvdata->ahbix_clk, LPASS_AHBIX_CLOCK_FREQUENCY);
+ if (ret) {
+ dev_err(dev, "error setting rate on ahbix_clk: %d\n", ret);
+ goto err_ahbix_clk;
+ }
+ dev_dbg(dev, "set ahbix_clk rate to %lu\n",
+ clk_get_rate(drvdata->ahbix_clk));
+
+ ret = clk_prepare_enable(drvdata->ahbix_clk);
+ if (ret) {
+ dev_err(dev, "error enabling ahbix_clk: %d\n", ret);
+ goto err_ahbix_clk;
+ }
+
+err_ahbix_clk:
+ return ret;
+}
+
+static int ipq806x_lpass_exit(struct platform_device *pdev)
+{
+ struct lpass_data *drvdata = platform_get_drvdata(pdev);
+
+ clk_disable_unprepare(drvdata->ahbix_clk);
+
+ return 0;
+}
+
+static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata, int dir, unsigned int dai_id)
+{
+ if (dir == SNDRV_PCM_STREAM_PLAYBACK)
+ return IPQ806X_LPAIF_RDMA_CHAN_MI2S;
+ else /* Capture currently not implemented */
+ return -EINVAL;
+}
+
+static int ipq806x_lpass_free_dma_channel(struct lpass_data *drvdata, int chan, unsigned int dai_id)
+{
+ 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,
+ .wrdma_reg_base = 0xB000,
+ .wrdma_reg_stride = 0x1000,
+ .wrdma_channel_start = 5,
+ .wrdma_channels = 4,
+ .loopback = REG_FIELD_ID(0x0010, 15, 15, 5, 0x4),
+ .spken = REG_FIELD_ID(0x0010, 14, 14, 5, 0x4),
+ .spkmode = REG_FIELD_ID(0x0010, 10, 13, 5, 0x4),
+ .spkmono = REG_FIELD_ID(0x0010, 9, 9, 5, 0x4),
+ .micen = REG_FIELD_ID(0x0010, 8, 8, 5, 0x4),
+ .micmode = REG_FIELD_ID(0x0010, 4, 7, 5, 0x4),
+ .micmono = REG_FIELD_ID(0x0010, 3, 3, 5, 0x4),
+ .wssrc = REG_FIELD_ID(0x0010, 2, 2, 5, 0x4),
+ .bitwidth = REG_FIELD_ID(0x0010, 0, 1, 5, 0x4),
+
+ .rdma_dyncclk = REG_FIELD_ID(0x6000, 12, 12, 4, 0x1000),
+ .rdma_bursten = REG_FIELD_ID(0x6000, 11, 11, 4, 0x1000),
+ .rdma_wpscnt = REG_FIELD_ID(0x6000, 8, 10, 4, 0x1000),
+ .rdma_intf = REG_FIELD_ID(0x6000, 4, 7, 4, 0x1000),
+ .rdma_fifowm = REG_FIELD_ID(0x6000, 1, 3, 4, 0x1000),
+ .rdma_enable = REG_FIELD_ID(0x6000, 0, 0, 4, 0x1000),
+
+ .wrdma_dyncclk = REG_FIELD_ID(0xB000, 12, 12, 4, 0x1000),
+ .wrdma_bursten = REG_FIELD_ID(0xB000, 11, 11, 4, 0x1000),
+ .wrdma_wpscnt = REG_FIELD_ID(0xB000, 8, 10, 4, 0x1000),
+ .wrdma_intf = REG_FIELD_ID(0xB000, 4, 7, 4, 0x1000),
+ .wrdma_fifowm = REG_FIELD_ID(0xB000, 1, 3, 4, 0x1000),
+ .wrdma_enable = REG_FIELD_ID(0xB000, 0, 0, 4, 0x1000),
+
+ .dai_driver = &ipq806x_lpass_cpu_dai_driver,
+ .num_dai = 1,
+ .dai_osr_clk_names = (const char *[]) {
+ "mi2s-osr-clk",
+ },
+ .dai_bit_clk_names = (const char *[]) {
+ "mi2s-bit-clk",
+ },
+ .init = ipq806x_lpass_init,
+ .exit = ipq806x_lpass_exit,
+ .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[] __maybe_unused = {
+ { .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");