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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2019-07-26 07:52:00 +0300
committerMark Brown <broonie@kernel.org>2019-08-05 18:25:59 +0300
commit9c712e4f57229081e837d593fc1e4183b068a41c (patch)
tree997e89089cbc1a986b3ba8a310192f68b35503e1 /include/sound
parent82d81f5cced36e480b581ae51c595e2deb9f2d56 (diff)
downloadlinux-9c712e4f57229081e837d593fc1e4183b068a41c.tar.xz
ASoC: soc-component: add snd_soc_pcm_component_page()
Current ALSA SoC is directly using component->driver->ops->xxx, thus, the code nested deeply, and it makes code difficult to read, and is not good for encapsulation. We want to implement component related function at soc-component.c, but, some of them need to care whole snd_soc_pcm_runtime (= rtd) connected component. Let's call component related function which need to care with for_each_rtdcom() loop as snd_soc_pcm_component_xxx(). This patch adds new snd_soc_pcm_component_page() and use it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87o91h4d06.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/soc-component.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index 6b95d2467053..4cab257962a6 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -377,5 +377,7 @@ int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void __user *buf, unsigned long bytes);
+struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
+ unsigned long offset);
#endif /* __SOC_COMPONENT_H */