/* * CS4271 I2C audio driver * * Copyright (c) 2010 Alexander Sverdlin * * 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. * * 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. */ #include #include #include #include #include "cs4271.h" static int cs4271_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct regmap_config config; config = cs4271_regmap_config; config.reg_bits = 8; config.val_bits = 8; return cs4271_probe(&client->dev, devm_regmap_init_i2c(client, &config)); } static int cs4271_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); return 0; } static const struct i2c_device_id cs4271_i2c_id[] = { { "cs4271", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id); static struct i2c_driver cs4271_i2c_driver = { .driver = { .name = "cs4271", .of_match_table = of_match_ptr(cs4271_dt_ids), }, .probe = cs4271_i2c_probe, .remove = cs4271_i2c_remove, .id_table = cs4271_i2c_id, }; module_i2c_driver(cs4271_i2c_driver); MODULE_DESCRIPTION("ASoC CS4271 I2C Driver"); MODULE_AUTHOR("Alexander Sverdlin "); MODULE_LICENSE("GPL"); 373e09fb16b83e8adf5c48c421a4ca76468'>refslogtreecommitdiff
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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/firewire/tascam/tascam.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/firewire/tascam/tascam.c')