ALSA: ASoC: OMAP: Add multilink support to McBSP DAI driver

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

2 files changed, 53 insertions, 35 deletions

diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index fb920e1b551e..d32eb4703cfe 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -381,37 +381,49 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
         return err;
 }
 
-struct snd_soc_dai omap_mcbsp_dai[NUM_LINKS] = {
-{
-        .name = "omap-mcbsp-dai",
-        .id = 0,
-        .type = SND_SOC_DAI_I2S,
-        .playback = {
-                .channels_min = 2,
-                .channels_max = 2,
-                .rates = OMAP_MCBSP_RATES,
-                .formats = SNDRV_PCM_FMTBIT_S16_LE,
-        },
-        .capture = {
-                .channels_min = 2,
-                .channels_max = 2,
-                .rates = OMAP_MCBSP_RATES,
-                .formats = SNDRV_PCM_FMTBIT_S16_LE,
-        },
-        .ops = {
-                .startup = omap_mcbsp_dai_startup,
-                .shutdown = omap_mcbsp_dai_shutdown,
-                .trigger = omap_mcbsp_dai_trigger,
-                .hw_params = omap_mcbsp_dai_hw_params,
-        },
-        .dai_ops = {
-                .set_fmt = omap_mcbsp_dai_set_dai_fmt,
-                .set_clkdiv = omap_mcbsp_dai_set_clkdiv,
-                .set_sysclk = omap_mcbsp_dai_set_dai_sysclk,
-        },
-        .private_data = &mcbsp_data[0].bus_id,
-},
+#define OMAP_MCBSP_DAI_BUILDER(link_id)                         \
+{                                                               \
+        .name = "omap-mcbsp-dai-(link_id)",                     \
+        .id = (link_id),                                        \
+        .type = SND_SOC_DAI_I2S,                                \
+        .playback = {                                           \
+                .channels_min = 2,                              \
+                .channels_max = 2,                              \
+                .rates = OMAP_MCBSP_RATES,                      \
+                .formats = SNDRV_PCM_FMTBIT_S16_LE,             \
+        },                                                      \
+        .capture = {                                            \
+                .channels_min = 2,                              \
+                .channels_max = 2,                              \
+                .rates = OMAP_MCBSP_RATES,                      \
+                .formats = SNDRV_PCM_FMTBIT_S16_LE,             \
+        },                                                      \
+        .ops = {                                                \
+                .startup = omap_mcbsp_dai_startup,              \
+                .shutdown = omap_mcbsp_dai_shutdown,            \
+                .trigger = omap_mcbsp_dai_trigger,              \
+                .hw_params = omap_mcbsp_dai_hw_params,          \
+        },                                                      \
+        .dai_ops = {                                            \
+                .set_fmt = omap_mcbsp_dai_set_dai_fmt,          \
+                .set_clkdiv = omap_mcbsp_dai_set_clkdiv,        \
+                .set_sysclk = omap_mcbsp_dai_set_dai_sysclk,    \
+        },                                                      \
+        .private_data = &mcbsp_data[(link_id)].bus_id,          \
+}
+
+struct snd_soc_dai omap_mcbsp_dai[] = {
+        OMAP_MCBSP_DAI_BUILDER(0),
+        OMAP_MCBSP_DAI_BUILDER(1),
+#if NUM_LINKS >= 3
+        OMAP_MCBSP_DAI_BUILDER(2),
+#endif
+#if NUM_LINKS == 5
+        OMAP_MCBSP_DAI_BUILDER(3),
+        OMAP_MCBSP_DAI_BUILDER(4),
+#endif
 };
+
 EXPORT_SYMBOL_GPL(omap_mcbsp_dai);
 
 MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>");
diff --git a/sound/soc/omap/omap-mcbsp.h b/sound/soc/omap/omap-mcbsp.h
index ed8afb550671..df7ad13ba73d 100644
--- a/sound/soc/omap/omap-mcbsp.h
+++ b/sound/soc/omap/omap-mcbsp.h
@@ -38,11 +38,17 @@ enum omap_mcbsp_div {
         OMAP_MCBSP_CLKGDV,              /* Sample rate generator divider */
 };
 
-/*
- * REVISIT: Preparation for the ASoC v2. Let the number of available links to
- * be same than number of McBSP ports found in OMAP(s) we are compiling for.
- */
-#define NUM_LINKS       1
+#if defined(CONFIG_ARCH_OMAP2420)
+#define NUM_LINKS       2
+#endif
+#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX)
+#undef  NUM_LINKS
+#define NUM_LINKS       3
+#endif
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX)
+#undef  NUM_LINKS
+#define NUM_LINKS       5
+#endif
 
 extern struct snd_soc_dai omap_mcbsp_dai[NUM_LINKS];