ASoC: Add more natural support for no-DMA DAIs
Since we can now support multiple platforms allow machines to not specify
a platform in a DAI link. Since the rest of the code requires that we have
a struct device for all objects we do this by substituting in a dummy
device that we register automatically.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9dc1311..16be3e5 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1299,6 +1299,7 @@
struct snd_soc_codec *codec;
struct snd_soc_platform *platform;
struct snd_soc_dai *codec_dai, *cpu_dai;
+ const char *platform_name;
if (rtd->complete)
return 1;
@@ -1351,13 +1352,18 @@
dai_link->codec_name);
find_platform:
- /* do we already have the CODEC DAI for this link ? */
- if (rtd->platform) {
+ /* do we need a platform? */
+ if (rtd->platform)
goto out;
- }
- /* no, then find CPU DAI from registered DAIs*/
+
+ /* if there's no platform we match on the empty platform */
+ platform_name = dai_link->platform_name;
+ if (!platform_name)
+ platform_name = "snd-soc-dummy";
+
+ /* no, then find one from the set of registered platforms */
list_for_each_entry(platform, &platform_list, list) {
- if (!strcmp(platform->name, dai_link->platform_name)) {
+ if (!strcmp(platform->name, platform_name)) {
rtd->platform = platform;
goto out;
}