/*
 * linux/sound/arm/ep93xx-pcm.c - EP93xx ALSA PCM interface
 *
 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
 * Copyright (C) 2006 Applied Data Systems
 *
 * Rewritten for the SoC audio subsystem (Based on PXA2xx code):
 *   Copyright (c) 2008 Ryan Mallon
 *
 * 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.
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dmaengine.h>

#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>

#include <linux/platform_data/dma-ep93xx.h>

#include "ep93xx-pcm.h"

static const struct snd_pcm_hardware ep93xx_pcm_hardware = {
	.info			= (SNDRV_PCM_INFO_MMAP		|
				   SNDRV_PCM_INFO_MMAP_VALID	|
				   SNDRV_PCM_INFO_INTERLEAVED	|
				   SNDRV_PCM_INFO_BLOCK_TRANSFER),
	.buffer_bytes_max	= 131072,
	.period_bytes_min	= 32,
	.period_bytes_max	= 32768,
	.periods_min		= 1,
	.periods_max		= 32,
	.fifo_size		= 32,
};

static bool ep93xx_pcm_dma_filter(struct dma_chan *chan, void *filter_param)
{
	struct ep93xx_dma_data *data = filter_param;

	if (data->direction == ep93xx_dma_chan_direction(chan)) {
		chan->private = data;
		return true;
	}

	return false;
}

static const struct snd_dmaengine_pcm_config ep93xx_dmaengine_pcm_config = {
	.pcm_hardware = &ep93xx_pcm_hardware,
	.compat_filter_fn = ep93xx_pcm_dma_filter,
	.prealloc_buffer_size = 131072,
};

int devm_ep93xx_pcm_platform_register(struct device *dev)
{
	return devm_snd_dmaengine_pcm_register(dev,
		&ep93xx_dmaengine_pcm_config,
		SND_DMAENGINE_PCM_FLAG_NO_DT |
		SND_DMAENGINE_PCM_FLAG_COMPAT);
}
EXPORT_SYMBOL_GPL(devm_ep93xx_pcm_platform_register);

MODULE_AUTHOR("Ryan Mallon");
MODULE_DESCRIPTION("EP93xx ALSA PCM interface");
MODULE_LICENSE("GPL");
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<tr><th>author</th><td>Jurij Smakov &lt;jurij@wooyd.org&gt;</td><td class='right'>2017-01-30 15:41:36 -0600</td></tr>
<tr><th>committer</th><td>Kalle Valo &lt;kvalo@codeaurora.org&gt;</td><td class='right'>2017-01-31 09:05:25 +0200</td></tr>
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<div class='commit-subject'>rtlwifi: rtl8192ce: Fix loading of incorrect firmware</div><div class='commit-msg'>In commit cf4747d7535a ("rtlwifi: Fix regression caused by commit
d86e64768859, an error in the edit results in the wrong firmware
being loaded for some models of the RTL8188/8192CE. In this condition,
the connection suffered from high ping latency, slow transfer rates,
 and required higher signal strengths to work at all

See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=853073,
https://bugzilla.opensuse.org/show_bug.cgi?id=1017471, and
https://github.com/lwfinger/rtlwifi_new/issues/203 for descriptions
of the problems. This patch fixes all of those problems.

Fixes: cf4747d7535a ("rtlwifi: Fix regression caused by commit d86e64768859")
Signed-off-by: Jurij Smakov &lt;jurij@wooyd.org&gt;
Signed-off-by: Larry Finger &lt;Larry.Finger@lwfinger.net&gt;
Cc: Stable &lt;stable@vger.kernel.org&gt; # 4.9+
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=52f5631a4c056ad01682393be56d2be237e81610'>Diffstat</a> (limited to 'tools/perf/python')</div><table summary='diffstat' class='diffstat'>