/* * osk5912.c -- SoC audio for OSK 5912 * * Copyright (C) 2008 Mistral Solutions * * Contact: Arun KS * * 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 "omap-mcbsp.h" #include "../codecs/tlv320aic23.h" #define CODEC_CLOCK 12000000 static struct clk *tlv320aic23_mclk; static int osk_startup(struct snd_pcm_substream *substream) { return clk_enable(tlv320aic23_mclk); } static void osk_shutdown(struct snd_pcm_substream *substream) { clk_disable(tlv320aic23_mclk); } static int osk_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; int err; /* Set the codec system clock for DAC and ADC */ err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN); if (err < 0) { printk(KERN_ERR "can't set codec system clock\n"); return err; } return err; } static struct snd_soc_ops osk_ops = { .startup = osk_startup, .hw_params = osk_hw_params, .shutdown = osk_shutdown, }; static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_LINE("Line In", NULL), SND_SOC_DAPM_MIC("Mic Jack", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { {"Headphone Jack", NULL, "LHPOUT"}, {"Headphone Jack", NULL, "RHPOUT"}, {"LLINEIN", NULL, "Line In"}, {"RLINEIN", NULL, "Line In"}, {"MICIN", NULL, "Mic Jack"}, }; /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link osk_dai = { .name = "TLV320AIC23", .stream_name = "AIC23", .cpu_dai_name = "omap-mcbsp.1", .codec_dai_name = "tlv320aic23-hifi", .platform_name = "omap-mcbsp.1", .codec_name = "tlv320aic23-codec", .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .ops = &osk_ops, }; /* Audio machine driver */ static struct snd_soc_card snd_soc_card_osk = { .name = "OSK5912", .owner = THIS_MODULE, .dai_link = &osk_dai, .num_links = 1, .dapm_widgets = tlv320aic23_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), }; static struct platform_device *osk_snd_device; static int __init osk_soc_init(void) { int err; u32 curRate; struct device *dev; if (!(machine_is_omap_osk())) return -ENODEV; osk_snd_device = platform_device_alloc("soc-audio", -1); if (!osk_snd_device) return -ENOMEM; platform_set_drvdata(osk_snd_device, &snd_soc_card_osk); err = platform_device_add(osk_snd_device); if (err) goto err1; dev = &osk_snd_device->dev; tlv320aic23_mclk = clk_get(dev, "mclk"); if (IS_ERR(tlv320aic23_mclk)) { printk(KERN_ERR "Could not get mclk clock\n"); err = PTR_ERR(tlv320aic23_mclk); goto err2; } /* * Configure 12 MHz output on MCLK. */ curRate = (uint) clk_get_rate(tlv320aic23_mclk); if (curRate != CODEC_CLOCK) { if (clk_set_rate(tlv320aic23_mclk, CODEC_CLOCK)) { printk(KERN_ERR "Cannot set MCLK for AIC23 CODEC\n"); err = -ECANCELED; goto err3; } } printk(KERN_INFO "MCLK = %d [%d]\n", (uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK); return 0; err3: clk_put(tlv320aic23_mclk); err2: platform_device_del(osk_snd_device); err1: platform_device_put(osk_snd_device); return err; } static void __exit osk_soc_exit(void) { clk_put(tlv320aic23_mclk); platform_device_unregister(osk_snd_device); } module_init(osk_soc_init); module_exit(osk_soc_exit); MODULE_AUTHOR("Arun KS "); MODULE_DESCRIPTION("ALSA SoC OSK 5912"); MODULE_LICENSE("GPL");
authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:38 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commitdd86e373e09fb16b83e8adf5c48c421a4ca76468 (patch)
tree55703c2ea8584e303e342090614e0aab3509ab21 /sound/soc/codecs/pcm512x-i2c.c
parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/soc/codecs/pcm512x-i2c.c')