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author | Arnd Bergmann <arnd@arndb.de> | 2015-11-18 15:25:23 +0100 |
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committer | Mark Brown <broonie@kernel.org> | 2015-11-18 17:51:46 +0000 |
commit | b9a1a743818ea3265abf98f9431623afa8c50c86 (patch) | |
tree | 72db950f767325cf8077bb17e61b083733838171 /include/linux/platform_data/asoc-s3c.h | |
parent | 8005c49d9aea74d382f474ce11afbbc7d7130bec (diff) | |
download | linux-stable-b9a1a743818ea3265abf98f9431623afa8c50c86.tar.gz linux-stable-b9a1a743818ea3265abf98f9431623afa8c50c86.tar.bz2 linux-stable-b9a1a743818ea3265abf98f9431623afa8c50c86.zip |
ASoC: samsung: pass DMA channels as pointers
ARM64 allmodconfig produces a bunch of warnings when building the
samsung ASoC code:
sound/soc/samsung/dmaengine.c: In function 'samsung_asoc_init_dma_data':
sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
playback_data->filter_data = (void *)playback->channel;
sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
capture_data->filter_data = (void *)capture->channel;
We could easily shut up the warning by adding an intermediate cast,
but there is a bigger underlying problem: The use of IORESOURCE_DMA
to pass data from platform code to device drivers is dubious to start
with, as what we really want is a pointer that can be passed into
a filter function.
Note that on s3c64xx, the pl08x DMA data is already a pointer, but
gets cast to resource_size_t so we can pass it as a resource, and it
then gets converted back to a pointer. In contrast, the data we pass
for s3c24xx is an index into a device specific table, and we artificially
convert that into a pointer for the filter function.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/platform_data/asoc-s3c.h')
-rw-r--r-- | include/linux/platform_data/asoc-s3c.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/platform_data/asoc-s3c.h b/include/linux/platform_data/asoc-s3c.h index 5e0bc779e6c5..33f88b4479e4 100644 --- a/include/linux/platform_data/asoc-s3c.h +++ b/include/linux/platform_data/asoc-s3c.h @@ -39,6 +39,10 @@ struct samsung_i2s { */ struct s3c_audio_pdata { int (*cfg_gpio)(struct platform_device *); + void *dma_playback; + void *dma_capture; + void *dma_play_sec; + void *dma_capture_mic; union { struct samsung_i2s i2s; } type; |