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authorThierry Reding <treding@nvidia.com>2013-12-17 12:09:16 -0500
committerThierry Reding <treding@nvidia.com>2013-12-17 12:09:16 -0500
commitb03bb79d4f3677adef410274fe73e6f16a1b3f41 (patch)
tree5731451c1bead0550a2726bf948b25f7c67dc073 /include/sound
parent319e2e3f63c348a9b66db4667efa73178e18b17d (diff)
parent8a0a1af30cbf56b41220a02e34835022c4d72f41 (diff)
Merge tag 'tegra-for-3.14-dmas-resets-rework' into drm/for-next
ARM: tegra: implement common DMA and resets DT bindings This series converts the Tegra DTs and drivers to use the common/ standard DMA and reset bindings, rather than custom bindings. It also adds complete documentation for the Tegra clock bindings without actually changing any binding definitions. This conversion relies on a few sets of patches in branches from outside the Tegra tree: 1) A patch to add an DMA channel request API which allows deferred probe to be implemented. 2) A patch to implement a common part of the of_xlate function for DMA controllers. 3) Some ASoC patches (which in turn rely on (1) above), which support deferred probe during DMA channel allocation. 4) The Tegra clock driver changes for 3.14. Consequently, this branch is based on a merge of all of those external branches. In turn, this branch is or will be pulled into a few places that either rely on features introduced here, or would otherwise conflict with the patches: a) Tegra's own for-3.14/powergate and for-4.14/dt branches, to avoid conflicts. b) The DRM tree, which introduces new code that relies on the reset controller framework introduced in this branch, and to avoid conflicts.
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/dmaengine_pcm.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index 15017311f2e9..eb73a3a39ec2 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -114,6 +114,10 @@ void snd_dmaengine_pcm_set_config_from_dai_data(
114 * @compat_filter_fn: Will be used as the filter function when requesting a 114 * @compat_filter_fn: Will be used as the filter function when requesting a
115 * channel for platforms which do not use devicetree. The filter parameter 115 * channel for platforms which do not use devicetree. The filter parameter
116 * will be the DAI's DMA data. 116 * will be the DAI's DMA data.
117 * @dma_dev: If set, request DMA channel on this device rather than the DAI
118 * device.
119 * @chan_names: If set, these custom DMA channel names will be requested at
120 * registration time.
117 * @pcm_hardware: snd_pcm_hardware struct to be used for the PCM. 121 * @pcm_hardware: snd_pcm_hardware struct to be used for the PCM.
118 * @prealloc_buffer_size: Size of the preallocated audio buffer. 122 * @prealloc_buffer_size: Size of the preallocated audio buffer.
119 * 123 *
@@ -130,6 +134,8 @@ struct snd_dmaengine_pcm_config {
130 struct snd_soc_pcm_runtime *rtd, 134 struct snd_soc_pcm_runtime *rtd,
131 struct snd_pcm_substream *substream); 135 struct snd_pcm_substream *substream);
132 dma_filter_fn compat_filter_fn; 136 dma_filter_fn compat_filter_fn;
137 struct device *dma_dev;
138 const char *chan_names[SNDRV_PCM_STREAM_LAST + 1];
133 139
134 const struct snd_pcm_hardware *pcm_hardware; 140 const struct snd_pcm_hardware *pcm_hardware;
135 unsigned int prealloc_buffer_size; 141 unsigned int prealloc_buffer_size;
@@ -140,6 +146,10 @@ int snd_dmaengine_pcm_register(struct device *dev,
140 unsigned int flags); 146 unsigned int flags);
141void snd_dmaengine_pcm_unregister(struct device *dev); 147void snd_dmaengine_pcm_unregister(struct device *dev);
142 148
149int devm_snd_dmaengine_pcm_register(struct device *dev,
150 const struct snd_dmaengine_pcm_config *config,
151 unsigned int flags);
152
143int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream, 153int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream,
144 struct snd_pcm_hw_params *params, 154 struct snd_pcm_hw_params *params,
145 struct dma_slave_config *slave_config); 155 struct dma_slave_config *slave_config);