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path: root/sound/soc/codecs/ssm2602-spi.c
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/*
 * SSM2602 SPI audio driver
 *
 * Copyright 2014 Analog Devices Inc.
 *
 * Licensed under the GPL-2.
 */

#include <linux/module.h>
#include <linux/spi/spi.h>
#include <linux/regmap.h>

#include <sound/soc.h>

#include "ssm2602.h"

static int ssm2602_spi_probe(struct spi_device *spi)
{
	return ssm2602_probe(&spi->dev, SSM2602,
		devm_regmap_init_spi(spi, &ssm2602_regmap_config));
}

static int ssm2602_spi_remove(struct spi_device *spi)
{
	snd_soc_unregister_codec(&spi->dev);
	return 0;
}

static const struct of_device_id ssm2602_of_match[] = {
	{ .compatible = "adi,ssm2602", },
	{ }
};
MODULE_DEVICE_TABLE(of, ssm2602_of_match);

static struct spi_driver ssm2602_spi_driver = {
	.driver = {
		.name	= "ssm2602",
		.of_match_table = ssm2602_of_match,
	},
	.probe		= ssm2602_spi_probe,
	.remove		= ssm2602_spi_remove,
};
module_spi_driver(ssm2602_spi_driver);

MODULE_DESCRIPTION("ASoC SSM2602 SPI driver");
MODULE_AUTHOR("Cliff Cai");
MODULE_LICENSE("GPL");
'>Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/soc/sirf/sirf-audio.c')