From 613fb50059cf19aa6acbc503a00265d9151c0b09 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 10 Jan 2020 11:35:21 +0900 Subject: ASoC: soc-core: remove snd_soc_rtdcom_list 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 Reviewed-By: Ranjani Sridharan Link: https://lore.kernel.org/r/87a76wt4wm.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 56 ++++++++++++++++++++-------------------------------- 1 file changed, 21 insertions(+), 35 deletions(-) (limited to 'sound/soc/soc-core.c') diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 55b98e82a978..c9daa63a339b 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -261,34 +261,18 @@ static inline void snd_soc_debugfs_exit(void) static int snd_soc_rtdcom_add(struct snd_soc_pcm_runtime *rtd, struct snd_soc_component *component) { - struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_component *comp; + int i; - for_each_rtd_components(rtd, rtdcom, comp) { + for_each_rtd_components(rtd, i, comp) { /* already connected */ if (comp == component) return 0; } - /* - * created rtdcom here will be freed when rtd->dev was freed. - * see - * soc_free_pcm_runtime() :: device_unregister(rtd->dev) - */ - rtdcom = devm_kzalloc(rtd->dev, sizeof(*rtdcom), GFP_KERNEL); - if (!rtdcom) - return -ENOMEM; - - rtdcom->component = component; - INIT_LIST_HEAD(&rtdcom->list); - - /* - * When rtd was freed, created rtdcom here will be - * also freed. - * And we don't need to call list_del(&rtdcom->list) - * when freed, because rtd is also freed. - */ - list_add_tail(&rtdcom->list, &rtd->component_list); + /* see for_each_rtd_components */ + rtd->components[rtd->num_components] = component; + rtd->num_components++; return 0; } @@ -296,8 +280,8 @@ static int snd_soc_rtdcom_add(struct snd_soc_pcm_runtime *rtd, struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, const char *driver_name) { - struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_component *component; + int i; if (!driver_name) return NULL; @@ -310,7 +294,7 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, * But, if many components which have same driver name are connected * to 1 rtd, this function will return 1st found component. */ - for_each_rtd_components(rtd, rtdcom, component) { + for_each_rtd_components(rtd, i, component) { const char *component_name = component->driver->name; if (!component_name) @@ -318,7 +302,7 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, if ((component_name == driver_name) || strcmp(component_name, driver_name) == 0) - return rtdcom->component; + return component; } return NULL; @@ -418,6 +402,7 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { struct snd_soc_pcm_runtime *rtd; + struct snd_soc_component *component; struct device *dev; int ret; @@ -443,13 +428,17 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( /* * for rtd */ - rtd = devm_kzalloc(dev, sizeof(*rtd), GFP_KERNEL); + rtd = devm_kzalloc(dev, + sizeof(*rtd) + + sizeof(*component) * (dai_link->num_cpus + + dai_link->num_codecs + + dai_link->num_platforms), + GFP_KERNEL); if (!rtd) goto free_rtd; rtd->dev = dev; INIT_LIST_HEAD(&rtd->list); - INIT_LIST_HEAD(&rtd->component_list); INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); @@ -1108,9 +1097,8 @@ static int soc_init_pcm_runtime(struct snd_soc_card *card, { struct snd_soc_dai_link *dai_link = rtd->dai_link; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_component *component; - int ret, num; + int ret, num, i; /* set default power off timeout */ rtd->pmdown_time = pmdown_time; @@ -1141,7 +1129,7 @@ static int soc_init_pcm_runtime(struct snd_soc_card *card, * topology based drivers can use the DAI link id field to set PCM * device number and then use rtd + a base offset of the BEs. */ - for_each_rtd_components(rtd, rtdcom, component) { + for_each_rtd_components(rtd, i, component) { if (!component->driver->use_dai_pcm_id) continue; @@ -1406,12 +1394,11 @@ static void soc_remove_link_components(struct snd_soc_card *card) { struct snd_soc_component *component; struct snd_soc_pcm_runtime *rtd; - struct snd_soc_rtdcom_list *rtdcom; - int order; + int i, order; for_each_comp_order(order) { for_each_card_rtds(card, rtd) { - for_each_rtd_components(rtd, rtdcom, component) { + for_each_rtd_components(rtd, i, component) { if (component->driver->remove_order != order) continue; @@ -1425,12 +1412,11 @@ static int soc_probe_link_components(struct snd_soc_card *card) { struct snd_soc_component *component; struct snd_soc_pcm_runtime *rtd; - struct snd_soc_rtdcom_list *rtdcom; - int ret, order; + int i, ret, order; for_each_comp_order(order) { for_each_card_rtds(card, rtd) { - for_each_rtd_components(rtd, rtdcom, component) { + for_each_rtd_components(rtd, i, component) { if (component->driver->probe_order != order) continue; -- cgit v1.2.3