/* * Driver for ADAU1361/ADAU1461/ADAU1761/ADAU1961 codec * * Copyright 2014 Analog Devices Inc. * Author: Lars-Peter Clausen * * Licensed under the GPL-2. */ #include #include #include #include #include #include "adau1761.h" static void adau1761_spi_switch_mode(struct device *dev) { struct spi_device *spi = to_spi_device(dev); /* * To get the device into SPI mode CLATCH has to be pulled low three * times. Do this by issuing three dummy reads. */ spi_w8r8(spi, 0x00); spi_w8r8(spi, 0x00); spi_w8r8(spi, 0x00); } static int adau1761_spi_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); struct regmap_config config; if (!id) return -EINVAL; config = adau1761_regmap_config; config.val_bits = 8; config.reg_bits = 24; config.read_flag_mask = 0x1; return adau1761_probe(&spi->dev, devm_regmap_init_spi(spi, &config), id->driver_data, adau1761_spi_switch_mode); } static int adau1761_spi_remove(struct spi_device *spi) { adau17x1_remove(&spi->dev); return 0; } static const struct spi_device_id adau1761_spi_id[] = { { "adau1361", ADAU1361 }, { "adau1461", ADAU1761 }, { "adau1761", ADAU1761 }, { "adau1961", ADAU1361 }, { } }; MODULE_DEVICE_TABLE(spi, adau1761_spi_id); #if defined(CONFIG_OF) static const struct of_device_id adau1761_spi_dt_ids[] = { { .compatible = "adi,adau1361", }, { .compatible = "adi,adau1461", }, { .compatible = "adi,adau1761", }, { .compatible = "adi,adau1961", }, { }, }; MODULE_DEVICE_TABLE(of, adau1761_spi_dt_ids); #endif static struct spi_driver adau1761_spi_driver = { .driver = { .name = "adau1761", .of_match_table = of_match_ptr(adau1761_spi_dt_ids), }, .probe = adau1761_spi_probe, .remove = adau1761_spi_remove, .id_table = adau1761_spi_id, }; module_spi_driver(adau1761_spi_driver); MODULE_DESCRIPTION("ASoC ADAU1361/ADAU1461/ADAU1761/ADAU1961 CODEC SPI driver"); MODULE_AUTHOR("Lars-Peter Clausen "); MODULE_LICENSE("GPL"); -private-remove&id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>commitdiff
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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 /sound/soc/samsung/s3c2412-i2s.c
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 'sound/soc/samsung/s3c2412-i2s.c')