/* * eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode * * Copyright 2010 Eric Bénard, Eukréa Electromatique * * based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c * which is Copyright 2009 Simtec Electronics * and on sound/soc/imx/phycore-ac97.c which is * Copyright 2009 Sascha Hauer, Pengutronix * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * */ #include #include #include #include #include #include #include #include #include #include #include #include "../codecs/tlv320aic23.h" #include "imx-ssi.h" #include "fsl_ssi.h" #include "imx-audmux.h" #define CODEC_CLOCK 12000000 static int eukrea_tlv320_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_dai *cpu_dai = rtd->cpu_dai; int ret; ret = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_OUT); if (ret) { dev_err(cpu_dai->dev, "Failed to set the codec sysclk.\n"); return ret; } snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0); ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0, SND_SOC_CLOCK_IN); /* fsl_ssi lacks the set_sysclk ops */ if (ret && ret != -EINVAL) { dev_err(cpu_dai->dev, "Can't set the IMX_SSP_SYS_CLK CPU system clock.\n"); return ret; } return 0; } static struct snd_soc_ops eukrea_tlv320_snd_ops = { .hw_params = eukrea_tlv320_hw_params, }; static struct snd_soc_dai_link eukrea_tlv320_dai = { .name = "tlv320aic23", .stream_name = "TLV320AIC23", .codec_dai_name = "tlv320aic23-hifi", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .ops = &eukrea_tlv320_snd_ops, }; static struct snd_soc_card eukrea_tlv320 = { .owner = THIS_MODULE, .dai_link = &eukrea_tlv320_dai, .num_links = 1, }; static int eukrea_tlv320_probe(struct platform_device *pdev) { int ret; int int_port = 0, ext_port; struct device_node *np = pdev->dev.of_node; struct device_node *ssi_np = NULL, *codec_np = NULL; eukrea_tlv320.dev = &pdev->dev; if (np) { ret = snd_soc_of_parse_card_name(&eukrea_tlv320, "eukrea,model"); if (ret) { dev_err(&pdev->dev, "eukrea,model node missing or invalid.\n"); goto err; } ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0); if (!ssi_np) { dev_err(&pdev->dev, "ssi-controller missing or invalid.\n"); ret = -ENODEV; goto err; } codec_np = of_parse_phandle(ssi_np, "codec-handle", 0); if (codec_np) eukrea_tlv320_dai.codec_of_node = codec_np; else dev_err(&pdev->dev, "codec-handle node missing or invalid.\n"); ret = of_property_read_u32(np, "fsl,mux-int-port", &int_port); if (ret) { dev_err(&pdev->dev, "fsl,mux-int-port node missing or invalid.\n"); return ret; } ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port); if (ret) { dev_err(&pdev->dev, "fsl,mux-ext-port node missing or invalid.\n"); return ret; } /* * The port numbering in the hardware manual starts at 1, while * the audmux API expects it starts at 0. */ int_port--; ext_port--; eukrea_tlv320_dai.cpu_of_node = ssi_np; eukrea_tlv320_dai.platform_of_node = ssi_np; } else { eukrea_tlv320_dai.cpu_dai_name = "imx-ssi.0"; eukrea_tlv320_dai.platform_name = "imx-ssi.0"; eukrea_tlv320_dai.codec_name = "tlv320aic23-codec.0-001a"; eukrea_tlv320.name = "cpuimx-audio"; } if (machine_is_eukrea_cpuimx27() || of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) { imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, IMX_AUDMUX_V1_PCR_SYN | IMX_AUDMUX_V1_PCR_TFSDIR | IMX_AUDMUX_V1_PCR_TCLKDIR | IMX_AUDMUX_V1_PCR_RFSDIR | IMX_AUDMUX_V1_PCR_RCLKDIR | IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) ); imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4, IMX_AUDMUX_V1_PCR_SYN | IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0) ); } else if (machine_is_eukrea_cpuimx25sd() || machine_is_eukrea_cpuimx35sd() || machine_is_eukrea_cpuimx51sd() || of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) { if (!np) ext_port = machine_is_eukrea_cpuimx25sd() ? 4 : 3; imx_audmux_v2_configure_port(int_port, IMX_AUDMUX_V2_PTCR_SYN | IMX_AUDMUX_V2_PTCR_TFSDIR | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | IMX_AUDMUX_V2_PTCR_TCLKDIR | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port), IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port) ); imx_audmux_v2_configure_port(ext_port, IMX_AUDMUX_V2_PTCR_SYN, IMX_AUDMUX_V2_PDCR_RXDSEL(int_port) ); } else { if (np) { /* The eukrea,asoc-tlv320 driver was explicitly * requested (through the device tree). */ dev_err(&pdev->dev, "Missing or invalid audmux DT node.\n"); return -ENODEV; } else { /* Return happy. * We might run on a totally different machine. */ return 0; } } ret = snd_soc_register_card(&eukrea_tlv320); err: if (ret) dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); of_node_put(ssi_np); return ret; } static int eukrea_tlv320_remove(struct platform_device *pdev) { snd_soc_unregister_card(&eukrea_tlv320); return 0; } static const struct of_device_id imx_tlv320_dt_ids[] = { { .compatible = "eukrea,asoc-tlv320"}, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids); static struct platform_driver eukrea_tlv320_driver = { .driver = { .name = "eukrea_tlv320", .of_match_table = imx_tlv320_dt_ids, }, .probe = eukrea_tlv320_probe, .remove = eukrea_tlv320_remove, }; module_platform_driver(eukrea_tlv320_driver); MODULE_AUTHOR("Eric Bénard "); MODULE_DESCRIPTION("CPUIMX ALSA SoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:eukrea_tlv320"); 42828785b589f686725ff5bc3b9b25&id2=24c2503255d35c269b67162c397a1a1c1e02f6ce'>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/soc/au1x/Makefile')