mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 17:24:17 +08:00
5608bd3ed2
By passing no flags when calling snd_dmaengine_pcm_register() from tegra_pcm.c, we end up using dma_request_slave_channel() rather than dmaengine_pcm_compat_request_channel(), and hence rely on the standard DMA DT bindings and stashing the DMA slave ID away during channel allocation. This means there's no need to use a custom DT property to store the slave ID. So, remove all the code that parsed it. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Brown <broonie@linaro.org>
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/*
|
|
* tegra_pcm.h - Definitions for Tegra PCM driver
|
|
*
|
|
* Author: Stephen Warren <swarren@nvidia.com>
|
|
* Copyright (C) 2010,2012 - NVIDIA, Inc.
|
|
*
|
|
* Based on code copyright/by:
|
|
*
|
|
* Copyright (c) 2009-2010, NVIDIA Corporation.
|
|
* Scott Peterson <speterson@nvidia.com>
|
|
*
|
|
* Copyright (C) 2010 Google, Inc.
|
|
* Iliyan Malchev <malchev@google.com>
|
|
*
|
|
* 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
|
|
*
|
|
*/
|
|
|
|
#ifndef __TEGRA_PCM_H__
|
|
#define __TEGRA_PCM_H__
|
|
|
|
struct snd_dmaengine_pcm_config;
|
|
|
|
int tegra_pcm_platform_register(struct device *dev);
|
|
int tegra_pcm_platform_register_with_chan_names(struct device *dev,
|
|
struct snd_dmaengine_pcm_config *config,
|
|
char *txdmachan, char *rxdmachan);
|
|
void tegra_pcm_platform_unregister(struct device *dev);
|
|
|
|
#endif
|