/* * SiRF audio card driver * * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. * * Licensed under GPLv2 or later. */ #include #include #include #include #include #include #include #include struct sirf_audio_card { unsigned int gpio_hp_pa; unsigned int gpio_spk_pa; }; static int sirf_audio_hp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *ctrl, int event) { struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct sirf_audio_card *sirf_audio_card = snd_soc_card_get_drvdata(card); int on = !SND_SOC_DAPM_EVENT_OFF(event); if (gpio_is_valid(sirf_audio_card->gpio_hp_pa)) gpio_set_value(sirf_audio_card->gpio_hp_pa, on); return 0; } static int sirf_audio_spk_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *ctrl, int event) { struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct sirf_audio_card *sirf_audio_card = snd_soc_card_get_drvdata(card); int on = !SND_SOC_DAPM_EVENT_OFF(event); if (gpio_is_valid(sirf_audio_card->gpio_spk_pa)) gpio_set_value(sirf_audio_card->gpio_spk_pa, on); return 0; } static const struct snd_soc_dapm_widget sirf_audio_dapm_widgets[] = { SND_SOC_DAPM_HP("Hp", sirf_audio_hp_event), SND_SOC_DAPM_SPK("Ext Spk", sirf_audio_spk_event), SND_SOC_DAPM_MIC("Ext Mic", NULL), }; static const struct snd_soc_dapm_route intercon[] = { {"Hp", NULL, "HPOUTL"}, {"Hp", NULL, "HPOUTR"}, {"Ext Spk", NULL, "SPKOUT"}, {"MICIN1", NULL, "Mic Bias"}, {"Mic Bias", NULL, "Ext Mic"}, }; /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link sirf_audio_dai_link[] = { { .name = "SiRF audio card", .stream_name = "SiRF audio HiFi", .codec_dai_name = "sirf-audio-codec", }, }; /* Audio machine driver */ static struct snd_soc_card snd_soc_sirf_audio_card = { .name = "SiRF audio card", .owner = THIS_MODULE, .dai_link = sirf_audio_dai_link, .num_links = ARRAY_SIZE(sirf_audio_dai_link), .dapm_widgets = sirf_audio_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(sirf_audio_dapm_widgets), .dapm_routes = intercon, .num_dapm_routes = ARRAY_SIZE(intercon), }; static int sirf_audio_probe(struct platform_device *pdev) { struct snd_soc_card *card = &snd_soc_sirf_audio_card; struct sirf_audio_card *sirf_audio_card; int ret; sirf_audio_card = devm_kzalloc(&pdev->dev, sizeof(struct sirf_audio_card), GFP_KERNEL); if (sirf_audio_card == NULL) return -ENOMEM; sirf_audio_dai_link[0].cpu_of_node = of_parse_phandle(pdev->dev.of_node, "sirf,audio-platform", 0); sirf_audio_dai_link[0].platform_of_node = of_parse_phandle(pdev->dev.of_node, "sirf,audio-platform", 0); sirf_audio_dai_link[0].codec_of_node = of_parse_phandle(pdev->dev.of_node, "sirf,audio-codec", 0); sirf_audio_card->gpio_spk_pa = of_get_named_gpio(pdev->dev.of_node, "spk-pa-gpios", 0); sirf_audio_card->gpio_hp_pa = of_get_named_gpio(pdev->dev.of_node, "hp-pa-gpios", 0); if (gpio_is_valid(sirf_audio_card->gpio_spk_pa)) { ret = devm_gpio_request_one(&pdev->dev, sirf_audio_card->gpio_spk_pa, GPIOF_OUT_INIT_LOW, "SPA_PA_SD"); if (ret) { dev_err(&pdev->dev, "Failed to request GPIO_%d for reset: %d\n", sirf_audio_card->gpio_spk_pa, ret); return ret; } } if (gpio_is_valid(sirf_audio_card->gpio_hp_pa)) { ret = devm_gpio_request_one(&pdev->dev, sirf_audio_card->gpio_hp_pa, GPIOF_OUT_INIT_LOW, "HP_PA_SD"); if (ret) { dev_err(&pdev->dev, "Failed to request GPIO_%d for reset: %d\n", sirf_audio_card->gpio_hp_pa, ret); return ret; } } card->dev = &pdev->dev; snd_soc_card_set_drvdata(card, sirf_audio_card); ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret); return ret; } static const struct of_device_id sirf_audio_of_match[] = { {.compatible = "sirf,sirf-audio-card", }, { }, }; MODULE_DEVICE_TABLE(of, sirf_audio_of_match); static struct platform_driver sirf_audio_driver = { .driver = { .name = "sirf-audio-card", .pm = &snd_soc_pm_ops, .of_match_table = sirf_audio_of_match, }, .probe = sirf_audio_probe, }; module_platform_driver(sirf_audio_driver); MODULE_AUTHOR("RongJun Ying "); MODULE_DESCRIPTION("ALSA SoC SIRF audio card driver"); MODULE_LICENSE("GPL v2"); mmit-info'> 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 /include/scsi/fc_encode.h 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 'include/scsi/fc_encode.h')