forked from Minki/linux
9b6fdef62b
Check for snd_soc_ops structures that are only stored in the ops field of a snd_soc_dai_link structure. This field is declared const, so snd_soc_ops structures that have this property can be declared as const also. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct snd_soc_ops i@p = { ... }; @ok1@ identifier r.i; struct snd_soc_dai_link e; position p; @@ e.ops = &i@p; @ok2@ identifier r.i, e; position p; @@ struct snd_soc_dai_link e[] = { ..., { .ops = &i@p, }, ..., }; @bad@ position p != {r.p,ok1.p,ok2.p}; identifier r.i; struct snd_soc_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct snd_soc_ops i = { ... }; // </smpl> The effect on the layout of the .o files is shown by the following output of the size command, first before then after the transformation: text data bss dec hex filename 4500 696 0 5196 144c sound/soc/generic/simple-card.o 4564 632 0 5196 144c sound/soc/generic/simple-card.o text data bss dec hex filename 3018 608 0 3626 e2a sound/soc/generic/simple-scu-card.o 3074 544 0 3618 e22 sound/soc/generic/simple-scu-card.o text data bss dec hex filename 4148 2448 768 7364 1cc4 sound/soc/intel/boards/bdw-rt5677.o 4212 2384 768 7364 1cc4 sound/soc/intel/boards/bdw-rt5677.o text data bss dec hex filename 5403 4628 384 10415 28af sound/soc/intel/boards/bxt_da7219_max98357a.o 5531 4516 384 10431 28bf sound/soc/intel/boards/bxt_da7219_max98357a.o text data bss dec hex filename 5275 4496 384 10155 27ab sound/soc/intel/boards/bxt_rt298.o 5403 4368 384 10155 27ab sound/soc/intel/boards/bxt_rt298.o text data bss dec hex filename 10017 2344 48 12409 3079 sound/soc/intel/boards/bytcr_rt5640.o 10145 2232 48 12425 3089 sound/soc/intel/boards/bytcr_rt5640.o text data bss dec hex filename 3719 2356 0 6075 17bb sound/soc/intel/boards/bytcr_rt5651.o 3847 2244 0 6091 17cb sound/soc/intel/boards/bytcr_rt5651.o text data bss dec hex filename 3598 2392 0 5990 1766 sound/soc/intel/boards/cht_bsw_max98090_ti.o 3726 2280 0 6006 1776 sound/soc/intel/boards/cht_bsw_max98090_ti.o text data bss dec hex filename 5343 3624 16 8983 2317 sound/soc/intel/boards/cht_bsw_rt5645.o 5471 3496 16 8983 2317 sound/soc/intel/boards/cht_bsw_rt5645.o text data bss dec hex filename 4662 2592 384 7638 1dd6 sound/soc/intel/boards/cht_bsw_rt5672.o 4790 2464 384 7638 1dd6 sound/soc/intel/boards/cht_bsw_rt5672.o text data bss dec hex filename 1595 2528 0 4123 101b sound/soc/intel/boards/haswell.o 1659 2472 0 4131 1023 sound/soc/intel/boards/haswell.o text data bss dec hex filename 6272 4760 416 11448 2cb8 sound/soc/intel/boards/skl_nau88l25_max98357a.o 6464 4568 416 11448 2cb8 sound/soc/intel/boards/skl_nau88l25_max98357a.o text data bss dec hex filename 7075 4888 416 12379 305b sound/soc/intel/boards/skl_nau88l25_ssm4567.o 7267 4696 416 12379 305b sound/soc/intel/boards/skl_nau88l25_ssm4567.o text data bss dec hex filename 5659 4496 384 10539 292b sound/soc/intel/boards/skl_rt286.o 5787 4368 384 10539 292b sound/soc/intel/boards/skl_rt286.o text data bss dec hex filename 1721 2048 0 3769 eb9 sound/soc/kirkwood/armada-370-db.o 1769 1976 0 3745 ea1 sound/soc/kirkwood/armada-370-db.o text data bss dec hex filename 1363 1792 0 3155 c53 sound/soc/mxs/mxs-sgtl5000.o 1427 1728 0 3155 c53 sound/soc/mxs/mxs-sgtl5000.o Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
183 lines
4.9 KiB
C
183 lines
4.9 KiB
C
/*
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* Copyright 2011 Freescale Semiconductor, Inc.
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <sound/soc-dapm.h>
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#include "../codecs/sgtl5000.h"
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#include "mxs-saif.h"
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static int mxs_sgtl5000_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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unsigned int rate = params_rate(params);
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u32 mclk;
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int ret;
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/* sgtl5000 does not support 512*rate when in 96000 fs */
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switch (rate) {
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case 96000:
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mclk = 256 * rate;
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break;
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default:
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mclk = 512 * rate;
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break;
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}
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/* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */
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ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0);
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if (ret) {
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dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n",
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mclk / 1000000, mclk / 1000 % 1000);
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return ret;
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}
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/* The SAIF MCLK should be the same as SGTL5000_SYSCLK */
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ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0);
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if (ret) {
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dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n",
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mclk / 1000000, mclk / 1000 % 1000);
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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 const struct snd_soc_ops mxs_sgtl5000_hifi_ops = {
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.hw_params = mxs_sgtl5000_hw_params,
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};
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#define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \
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SND_SOC_DAIFMT_CBS_CFS)
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static struct snd_soc_dai_link mxs_sgtl5000_dai[] = {
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{
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.name = "HiFi Tx",
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.stream_name = "HiFi Playback",
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.codec_dai_name = "sgtl5000",
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.dai_fmt = MXS_SGTL5000_DAI_FMT,
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.ops = &mxs_sgtl5000_hifi_ops,
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.playback_only = true,
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}, {
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.name = "HiFi Rx",
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.stream_name = "HiFi Capture",
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.codec_dai_name = "sgtl5000",
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.dai_fmt = MXS_SGTL5000_DAI_FMT,
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.ops = &mxs_sgtl5000_hifi_ops,
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.capture_only = true,
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},
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};
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static struct snd_soc_card mxs_sgtl5000 = {
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.name = "mxs_sgtl5000",
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.owner = THIS_MODULE,
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.dai_link = mxs_sgtl5000_dai,
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.num_links = ARRAY_SIZE(mxs_sgtl5000_dai),
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};
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static int mxs_sgtl5000_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &mxs_sgtl5000;
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int ret, i;
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struct device_node *np = pdev->dev.of_node;
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struct device_node *saif_np[2], *codec_np;
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saif_np[0] = of_parse_phandle(np, "saif-controllers", 0);
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saif_np[1] = of_parse_phandle(np, "saif-controllers", 1);
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codec_np = of_parse_phandle(np, "audio-codec", 0);
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if (!saif_np[0] || !saif_np[1] || !codec_np) {
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dev_err(&pdev->dev, "phandle missing or invalid\n");
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return -EINVAL;
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}
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for (i = 0; i < 2; i++) {
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mxs_sgtl5000_dai[i].codec_name = NULL;
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mxs_sgtl5000_dai[i].codec_of_node = codec_np;
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mxs_sgtl5000_dai[i].cpu_dai_name = NULL;
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mxs_sgtl5000_dai[i].cpu_of_node = saif_np[i];
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mxs_sgtl5000_dai[i].platform_name = NULL;
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mxs_sgtl5000_dai[i].platform_of_node = saif_np[i];
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}
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of_node_put(codec_np);
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of_node_put(saif_np[0]);
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of_node_put(saif_np[1]);
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/*
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* Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w).
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* The Sgtl5000 sysclk is derived from saif0 mclk and it's range
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* should be >= 8MHz and <= 27M.
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*/
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ret = mxs_saif_get_mclk(0, 44100 * 256, 44100);
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if (ret) {
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dev_err(&pdev->dev, "failed to get mclk\n");
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return ret;
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}
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card->dev = &pdev->dev;
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platform_set_drvdata(pdev, card);
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
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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 mxs_sgtl5000_remove(struct platform_device *pdev)
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{
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mxs_saif_put_mclk(0);
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return 0;
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}
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static const struct of_device_id mxs_sgtl5000_dt_ids[] = {
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{ .compatible = "fsl,mxs-audio-sgtl5000", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids);
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static struct platform_driver mxs_sgtl5000_audio_driver = {
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.driver = {
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.name = "mxs-sgtl5000",
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.of_match_table = mxs_sgtl5000_dt_ids,
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},
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.probe = mxs_sgtl5000_probe,
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.remove = mxs_sgtl5000_remove,
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};
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module_platform_driver(mxs_sgtl5000_audio_driver);
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MODULE_AUTHOR("Freescale Semiconductor, Inc.");
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MODULE_DESCRIPTION("MXS ALSA SoC Machine driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:mxs-sgtl5000");
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