/* * Copyright (C) 2009, Lars-Peter Clausen * * 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. * * 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., * 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include #include #include #include #include #include #include #include #include struct qi_lb60 { struct gpio_desc *snd_gpio; struct gpio_desc *amp_gpio; }; static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget, struct snd_kcontrol *ctrl, int event) { struct qi_lb60 *qi_lb60 = snd_soc_card_get_drvdata(widget->dapm->card); int on = !SND_SOC_DAPM_EVENT_OFF(event); gpiod_set_value_cansleep(qi_lb60->snd_gpio, on); gpiod_set_value_cansleep(qi_lb60->amp_gpio, on); return 0; } static const struct snd_soc_dapm_widget qi_lb60_widgets[] = { SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event), SND_SOC_DAPM_MIC("Mic", NULL), }; static const struct snd_soc_dapm_route qi_lb60_routes[] = { {"Mic", NULL, "MIC"}, {"Speaker", NULL, "LOUT"}, {"Speaker", NULL, "ROUT"}, }; static struct snd_soc_dai_link qi_lb60_dai = { .name = "jz4740", .stream_name = "jz4740", .cpu_dai_name = "jz4740-i2s", .platform_name = "jz4740-i2s", .codec_dai_name = "jz4740-hifi", .codec_name = "jz4740-codec", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, }; static struct snd_soc_card qi_lb60_card = { .name = "QI LB60", .owner = THIS_MODULE, .dai_link = &qi_lb60_dai, .num_links = 1, .dapm_widgets = qi_lb60_widgets, .num_dapm_widgets = ARRAY_SIZE(qi_lb60_widgets), .dapm_routes = qi_lb60_routes, .num_dapm_routes = ARRAY_SIZE(qi_lb60_routes), .fully_routed = true, }; static int qi_lb60_probe(struct platform_device *pdev) { struct qi_lb60 *qi_lb60; struct snd_soc_card *card = &qi_lb60_card; qi_lb60 = devm_kzalloc(&pdev->dev, sizeof(*qi_lb60), GFP_KERNEL); if (!qi_lb60) return -ENOMEM; qi_lb60->snd_gpio = devm_gpiod_get(&pdev->dev, "snd", GPIOD_OUT_LOW); if (IS_ERR(qi_lb60->snd_gpio)) return PTR_ERR(qi_lb60->snd_gpio); qi_lb60->amp_gpio = devm_gpiod_get(&pdev->dev, "amp", GPIOD_OUT_LOW); if (IS_ERR(qi_lb60->amp_gpio)) return PTR_ERR(qi_lb60->amp_gpio); card->dev = &pdev->dev; snd_soc_card_set_drvdata(card, qi_lb60); return devm_snd_soc_register_card(&pdev->dev, card); } static struct platform_driver qi_lb60_driver = { .driver = { .name = "qi-lb60-audio", }, .probe = qi_lb60_probe, }; module_platform_driver(qi_lb60_driver); MODULE_AUTHOR("Lars-Peter Clausen "); MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:qi-lb60-audio"); .git/commit/sound?h=nds-private-remove&id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>sound/soc/intel
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /sound/soc/intel
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'sound/soc/intel')