diff options
Diffstat (limited to 'sound/soc/qcom/lpass-ipq806x.c')
| -rw-r--r-- | sound/soc/qcom/lpass-ipq806x.c | 90 |
1 files changed, 74 insertions, 16 deletions
diff --git a/sound/soc/qcom/lpass-ipq806x.c b/sound/soc/qcom/lpass-ipq806x.c index ca1e1f2d2787..e57d29ea4ce7 100644 --- a/sound/soc/qcom/lpass-ipq806x.c +++ b/sound/soc/qcom/lpass-ipq806x.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * 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 */ @@ -59,11 +51,51 @@ static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = { .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, int dir) +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; @@ -71,12 +103,12 @@ static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata, int dir) return -EINVAL; } -static int ipq806x_lpass_free_dma_channel(struct lpass_data *drvdata, int chan) +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 = { +static const struct lpass_variant ipq806x_data = { .i2sctrl_reg_base = 0x0010, .i2sctrl_reg_stride = 0x04, .i2s_ports = 5, @@ -90,6 +122,30 @@ static struct lpass_variant ipq806x_data = { .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 *[]) { @@ -98,11 +154,13 @@ static struct lpass_variant ipq806x_data = { .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[] = { +static const struct of_device_id ipq806x_lpass_cpu_device_id[] __maybe_unused = { { .compatible = "qcom,lpass-cpu", .data = &ipq806x_data }, {} }; @@ -114,9 +172,9 @@ static struct platform_driver ipq806x_lpass_cpu_platform_driver = { .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, + .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"); +MODULE_LICENSE("GPL"); |