/* * ALSA SoC SPDIF DIR (Digital Interface Reciever) driver * * Based on ALSA SoC SPDIF DIT driver * * This driver is used by controllers which can operate in DIR (SPDI/F) where * no codec is needed. This file provides stub codec that can be used * in these configurations. SPEAr SPDIF IN Audio controller uses this driver. * * Author: Vipin Kumar, * Copyright: (C) 2012 ST Microelectronics * * 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. */ #include #include #include #include #include #include #include static const struct snd_soc_dapm_widget dir_widgets[] = { SND_SOC_DAPM_INPUT("spdif-in"), }; static const struct snd_soc_dapm_route dir_routes[] = { { "Capture", NULL, "spdif-in" }, }; #define STUB_RATES SNDRV_PCM_RATE_8000_192000 #define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_3LE | \ SNDRV_PCM_FMTBIT_S24_LE | \ SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) static struct snd_soc_codec_driver soc_codec_spdif_dir = { .component_driver = { .dapm_widgets = dir_widgets, .num_dapm_widgets = ARRAY_SIZE(dir_widgets), .dapm_routes = dir_routes, .num_dapm_routes = ARRAY_SIZE(dir_routes), }, }; static struct snd_soc_dai_driver dir_stub_dai = { .name = "dir-hifi", .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 384, .rates = STUB_RATES, .formats = STUB_FORMATS, }, }; static int spdif_dir_probe(struct platform_device *pdev) { return snd_soc_register_codec(&pdev->dev, &soc_codec_spdif_dir, &dir_stub_dai, 1); } static int spdif_dir_remove(struct platform_device *pdev) { snd_soc_unregister_codec(&pdev->dev); return 0; } #ifdef CONFIG_OF static const struct of_device_id spdif_dir_dt_ids[] = { { .compatible = "linux,spdif-dir", }, { } }; MODULE_DEVICE_TABLE(of, spdif_dir_dt_ids); #endif static struct platform_driver spdif_dir_driver = { .probe = spdif_dir_probe, .remove = spdif_dir_remove, .driver = { .name = "spdif-dir", .of_match_table = of_match_ptr(spdif_dir_dt_ids), }, }; module_platform_driver(spdif_dir_driver); MODULE_DESCRIPTION("ASoC SPDIF DIR driver"); MODULE_AUTHOR("Vipin Kumar "); MODULE_LICENSE("GPL"); ion value='range'>range
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /sound/core/timer_compat.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/core/timer_compat.c')