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![Julia Lawall](/assets/img/avatar_default.png)
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 3143 1888 384 5415 1527 sound/soc/tegra/tegra_alc5632.o 3191 1840 384 5415 1527 sound/soc/tegra/tegra_alc5632.o text data bss dec hex filename 3672 2176 768 6616 19d8 sound/soc/tegra/tegra_max98090.o 3720 2128 768 6616 19d8 sound/soc/tegra/tegra_max98090.o text data bss dec hex filename 2770 1856 384 5010 1392 sound/soc/tegra/tegra_rt5640.o 2818 1808 384 5010 1392 sound/soc/tegra/tegra_rt5640.o text data bss dec hex filename 4412 2176 768 7356 1cbc sound/soc/tegra/tegra_rt5677.o 4460 2128 768 7356 1cbc sound/soc/tegra/tegra_rt5677.o text data bss dec hex filename 2442 1536 0 3978 f8a sound/soc/tegra/tegra_sgtl5000.o 2490 1480 0 3970 f82 sound/soc/tegra/tegra_sgtl5000.o text data bss dec hex filename 2105 1536 0 3641 e39 sound/soc/tegra/tegra_wm8753.o 2153 1480 0 3633 e31 sound/soc/tegra/tegra_wm8753.o text data bss dec hex filename 3755 1888 768 6411 190b sound/soc/tegra/tegra_wm8903.o 3803 1840 768 6411 190b sound/soc/tegra/tegra_wm8903.o text data bss dec hex filename 2121 1536 0 3657 e49 sound/soc/tegra/trimslice.o 2169 1480 0 3649 e41 sound/soc/tegra/trimslice.o Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
206 lines
5.4 KiB
C
206 lines
5.4 KiB
C
/*
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* trimslice.c - TrimSlice machine ASoC driver
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*
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* Copyright (C) 2011 - CompuLab, Ltd.
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* Author: Mike Rapoport <mike@compulab.co.il>
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*
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* Based on code copyright/by:
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* Author: Stephen Warren <swarren@nvidia.com>
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* Copyright (C) 2010-2011 - NVIDIA, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* 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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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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 <linux/slab.h>
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#include <sound/core.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include "../codecs/tlv320aic23.h"
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#include "tegra_asoc_utils.h"
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#define DRV_NAME "tegra-snd-trimslice"
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struct tegra_trimslice {
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struct tegra_asoc_utils_data util_data;
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};
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static int trimslice_asoc_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_card *card = rtd->card;
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struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
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int srate, mclk;
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int err;
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srate = params_rate(params);
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mclk = 128 * srate;
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err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
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if (err < 0) {
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dev_err(card->dev, "Can't configure clocks\n");
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return err;
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}
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err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
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SND_SOC_CLOCK_IN);
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if (err < 0) {
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dev_err(card->dev, "codec_dai clock not set\n");
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return err;
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}
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return 0;
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}
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static const struct snd_soc_ops trimslice_asoc_ops = {
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.hw_params = trimslice_asoc_hw_params,
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};
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static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Line Out", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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};
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static const struct snd_soc_dapm_route trimslice_audio_map[] = {
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{"Line Out", NULL, "LOUT"},
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{"Line Out", NULL, "ROUT"},
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{"LLINEIN", NULL, "Line In"},
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{"RLINEIN", NULL, "Line In"},
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};
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static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
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.name = "TLV320AIC23",
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.stream_name = "AIC23",
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.codec_dai_name = "tlv320aic23-hifi",
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.ops = &trimslice_asoc_ops,
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.dai_fmt = SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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};
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static struct snd_soc_card snd_soc_trimslice = {
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.name = "tegra-trimslice",
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.owner = THIS_MODULE,
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.dai_link = &trimslice_tlv320aic23_dai,
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.num_links = 1,
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.dapm_widgets = trimslice_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
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.dapm_routes = trimslice_audio_map,
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.num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
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.fully_routed = true,
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};
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static int tegra_snd_trimslice_probe(struct platform_device *pdev)
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{
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struct device_node *np = pdev->dev.of_node;
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struct snd_soc_card *card = &snd_soc_trimslice;
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struct tegra_trimslice *trimslice;
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int ret;
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trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
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GFP_KERNEL);
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if (!trimslice) {
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dev_err(&pdev->dev, "Can't allocate tegra_trimslice\n");
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return -ENOMEM;
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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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snd_soc_card_set_drvdata(card, trimslice);
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trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle(np,
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"nvidia,audio-codec", 0);
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if (!trimslice_tlv320aic23_dai.codec_of_node) {
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dev_err(&pdev->dev,
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"Property 'nvidia,audio-codec' missing or invalid\n");
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ret = -EINVAL;
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goto err;
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}
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trimslice_tlv320aic23_dai.cpu_of_node = of_parse_phandle(np,
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"nvidia,i2s-controller", 0);
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if (!trimslice_tlv320aic23_dai.cpu_of_node) {
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dev_err(&pdev->dev,
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"Property 'nvidia,i2s-controller' missing or invalid\n");
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ret = -EINVAL;
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goto err;
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}
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trimslice_tlv320aic23_dai.platform_of_node =
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trimslice_tlv320aic23_dai.cpu_of_node;
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ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
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if (ret)
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goto err;
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ret = snd_soc_register_card(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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goto err_fini_utils;
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}
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return 0;
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err_fini_utils:
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tegra_asoc_utils_fini(&trimslice->util_data);
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err:
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return ret;
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}
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static int tegra_snd_trimslice_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
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snd_soc_unregister_card(card);
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tegra_asoc_utils_fini(&trimslice->util_data);
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return 0;
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}
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static const struct of_device_id trimslice_of_match[] = {
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{ .compatible = "nvidia,tegra-audio-trimslice", },
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{},
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};
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MODULE_DEVICE_TABLE(of, trimslice_of_match);
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static struct platform_driver tegra_snd_trimslice_driver = {
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.driver = {
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.name = DRV_NAME,
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.of_match_table = trimslice_of_match,
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},
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.probe = tegra_snd_trimslice_probe,
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.remove = tegra_snd_trimslice_remove,
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};
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module_platform_driver(tegra_snd_trimslice_driver);
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MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
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MODULE_DESCRIPTION("Trimslice machine ASoC driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:" DRV_NAME);
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