/* * trimslice.c - TrimSlice machine ASoC driver * * Copyright (C) 2011 - CompuLab, Ltd. * Author: Mike Rapoport * * Based on code copyright/by: * Author: Stephen Warren * Copyright (C) 2010-2011 - NVIDIA, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include #include #include #include #include #include #include #include #include #include "../codecs/tlv320aic23.h" #include "tegra_asoc_utils.h" #define DRV_NAME "tegra-snd-trimslice" struct tegra_trimslice { struct tegra_asoc_utils_data util_data; }; static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_card *card = rtd->card; struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card); int srate, mclk; int err; srate = params_rate(params); mclk = 128 * srate; err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk); if (err < 0) { dev_err(card->dev, "Can't configure clocks\n"); return err; } err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, SND_SOC_CLOCK_IN); if (err < 0) { dev_err(card->dev, "codec_dai clock not set\n"); return err; } return 0; } static const struct snd_soc_ops trimslice_asoc_ops = { .hw_params = trimslice_asoc_hw_params, }; static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = { SND_SOC_DAPM_HP("Line Out", NULL), SND_SOC_DAPM_LINE("Line In", NULL), }; static const struct snd_soc_dapm_route trimslice_audio_map[] = { {"Line Out", NULL, "LOUT"}, {"Line Out", NULL, "ROUT"}, {"LLINEIN", NULL, "Line In"}, {"RLINEIN", NULL, "Line In"}, }; static struct snd_soc_dai_link trimslice_tlv320aic23_dai = { .name = "TLV320AIC23", .stream_name = "AIC23", .codec_dai_name = "tlv320aic23-hifi", .ops = &trimslice_asoc_ops, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, }; static struct snd_soc_card snd_soc_trimslice = { .name = "tegra-trimslice", .owner = THIS_MODULE, .dai_link = &trimslice_tlv320aic23_dai, .num_links = 1, .dapm_widgets = trimslice_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets), .dapm_routes = trimslice_audio_map, .num_dapm_routes = ARRAY_SIZE(trimslice_audio_map), .fully_routed = true, }; static int tegra_snd_trimslice_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct snd_soc_card *card = &snd_soc_trimslice; struct tegra_trimslice *trimslice; int ret; trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice), GFP_KERNEL); if (!trimslice) { dev_err(&pdev->dev, "Can't allocate tegra_trimslice\n"); return -ENOMEM; } card->dev = &pdev->dev; platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, trimslice); trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle(np, "nvidia,audio-codec", 0); if (!trimslice_tlv320aic23_dai.codec_of_node) { dev_err(&pdev->dev, "Property 'nvidia,audio-codec' missing or invalid\n"); ret = -EINVAL; goto err; } trimslice_tlv320aic23_dai.cpu_of_node = of_parse_phandle(np, "nvidia,i2s-controller", 0); if (!trimslice_tlv320aic23_dai.cpu_of_node) { dev_err(&pdev->dev, "Property 'nvidia,i2s-controller' missing or invalid\n"); ret = -EINVAL; goto err; } trimslice_tlv320aic23_dai.platform_of_node = trimslice_tlv320aic23_dai.cpu_of_node; ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev); if (ret) goto err; ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto err_fini_utils; } return 0; err_fini_utils: tegra_asoc_utils_fini(&trimslice->util_data); err: return ret; } static int tegra_snd_trimslice_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card); snd_soc_unregister_card(card); tegra_asoc_utils_fini(&trimslice->util_data); return 0; } static const struct of_device_id trimslice_of_match[] = { { .compatible = "nvidia,tegra-audio-trimslice", }, {}, }; MODULE_DEVICE_TABLE(of, trimslice_of_match); static struct platform_driver tegra_snd_trimslice_driver = { .driver = { .name = DRV_NAME, .of_match_table = trimslice_of_match, }, .probe = tegra_snd_trimslice_probe, .remove = tegra_snd_trimslice_remove, }; module_platform_driver(tegra_snd_trimslice_driver); MODULE_AUTHOR("Mike Rapoport "); MODULE_DESCRIPTION("Trimslice machine ASoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRV_NAME); 37c38ed0a7dd5da2d4b1e93f0fb43101 /sound/pci/au88x0/au88x0_synth.c parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'sound/pci/au88x0/au88x0_synth.c')