xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ASoC: soc-core: remove snd_soc_rtdcom_list

Browse Source 
Current ALSA SoC is using struct snd_soc_rtdcom_list to
connecting component to rtd by using list_head.

	struct snd_soc_rtdcom_list {
		struct snd_soc_component *component;
		struct list_head list; /* rtd::component_list */
	};

	struct snd_soc_pcm_runtime {
		...
		struct list_head component_list; /* list of connected components */
		...
	};

The CPU/Codec/Platform component which will be connected to rtd (a)
is indicated via dai_link at snd_soc_add_pcm_runtime()

	int snd_soc_add_pcm_runtime(...)
	{
		...
		/* Find CPU from registered CPUs */
		rtd->cpu_dai = snd_soc_find_dai(dai_link->cpus);
		...
(a)		snd_soc_rtdcom_add(rtd, rtd->cpu_dai->component);
		...

		/* Find CODEC from registered CODECs */
(b)		for_each_link_codecs(dai_link, i, codec) {
			rtd->codec_dais[i] = snd_soc_find_dai(codec);
			...
(a)			snd_soc_rtdcom_add(rtd, rtd->codec_dais[i]->component);
		}
		...

		/* Find PLATFORM from registered PLATFORMs */
(b)		for_each_link_platforms(dai_link, i, platform) {
			for_each_component(component) {
				...
(a)				snd_soc_rtdcom_add(rtd, component);
			}
		}

	}

It shows, it is possible to know how many components will be
connected to rtd by using

	dai_link->num_cpus
	dai_link->num_codecs
	dai_link->num_platforms

If so, we can use component pointer array instead of list_head,
in such case, code can be more simple.
This patch removes struct snd_soc_rtdcom_list that is only
of temporary value, and convert to pointer array.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-By: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/87a76wt4wm.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto
2020-01-10 11:35:21 +09:00
committed by Mark Brown
parent a84188eced
commit 613fb50059
5 changed files with 91 additions and 134 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
include/sound/soc.h
View File

@@ -736,19 +736,9 @@ struct snd_soc_compr_ops {
int (*trigger)(struct snd_compr_stream *);
};
struct snd_soc_rtdcom_list {
struct snd_soc_component *component;
struct list_head list; /* rtd::component_list */
};
struct snd_soc_component*
snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd,
const char *driver_name);
#define for_each_rtd_components(rtd, rtdcom, _component) \
for (rtdcom = list_first_entry(&(rtd)->component_list, \
typeof(*rtdcom), list); \
(&rtdcom->list != &(rtd)->component_list) && \
(_component = rtdcom->component); \
rtdcom = list_next_entry(rtdcom, list))
struct snd_soc_dai_link_component {
const char *name;
@@ -1150,12 +1140,18 @@ struct snd_soc_pcm_runtime {
unsigned int num; /* 0-based and monotonic increasing */
struct list_head list; /* rtd list of the soc card */
struct list_head component_list; /* list of connected components */
/* bit field */
unsigned int pop_wait:1;
unsigned int fe_compr:1; /* for Dynamic PCM */
int num_components;
struct snd_soc_component *components[0]; /* CPU/Codec/Platform */
};
#define for_each_rtd_components(rtd, i, component) \
for ((i) = 0; \
((i) < rtd->num_components) && ((component) = rtd->components[i]);\
(i)++)
#define for_each_rtd_codec_dai(rtd, i, dai)\
for ((i) = 0; \
((i) < rtd->num_codecs) && ((dai) = rtd->codec_dais[i]); \