ASoC: Provide CODEC clocking operations and API calls

When multi component systems use DAIless amplifiers which require clocking
configuration it is at best hard to use the current clocking API as this
requires a DAI even though the device may not even have one. Address this
by adding set_sysclk() and set_pll() operations and APIs for CODECs.

In order to avoid issues with devices which could be used either with or
without DAIs make the DAI variants call through to their CODEC counterparts
if there is no DAI specific operation. Converting over entirely would create
problems for multi-DAI devices which offer per-DAI clocking setup.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 6f197589b6d7..14f601f3e189 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -259,6 +259,11 @@ enum snd_soc_compress_type {
         SND_SOC_RBTREE_COMPRESSION
 };
 
+int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
+                             unsigned int freq, int dir);
+int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
+                          unsigned int freq_in, unsigned int freq_out);
+
 int snd_soc_register_card(struct snd_soc_card *card);
 int snd_soc_unregister_card(struct snd_soc_card *card);
 int snd_soc_suspend(struct device *dev);
@@ -568,6 +573,12 @@ struct snd_soc_codec_driver {
         const struct snd_soc_dapm_route *dapm_routes;
         int num_dapm_routes;
 
+        /* codec wide operations */
+        int (*set_sysclk)(struct snd_soc_codec *codec,
+                          int clk_id, unsigned int freq, int dir);
+        int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
+                unsigned int freq_in, unsigned int freq_out);
+
         /* codec IO */
         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);