[PATCH 01/56] ASoC: core: Add set_fmt_new callback that directly specifies provider

[Charles Keepax]

The original set_fmt callback always passes clock provider/consumer
with respect to the CODEC. This made sense when the framework was
directly broken down into platforms and CODECs. Now everything is
componentised it simplifies things if each side of the link is
just told if it is provider or consumer of the clocks. To start
this migration add a new callback that can be used to receive a
direct specification of clocking. As there are more CODEC drivers
than platform drivers, we make the new flags identical to the old
CODEC flags meaning CODEC drivers will not require an update.

Signed-off-by: Charles Keepax <ckeepax at opensource.cirrus.com>
---
 include/sound/soc-dai.h | 7 +++++++
 sound/soc/soc-core.c    | 3 ++-
 sound/soc/soc-dai.c     | 5 ++++-
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index bbd821d2df9ca..9c1d92d5a3738 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -124,6 +124,12 @@ struct snd_compr_stream;
 #define SND_SOC_DAIFMT_CBM_CFS		SND_SOC_DAIFMT_CBP_CFC
 #define SND_SOC_DAIFMT_CBS_CFS		SND_SOC_DAIFMT_CBC_CFC
 
+/* when passed to set_fmt directly indicate if the device is provider or consumer */
+#define SND_SOC_DAIFMT_BP_FP		SND_SOC_DAIFMT_CBP_CFP
+#define SND_SOC_DAIFMT_BC_FP		SND_SOC_DAIFMT_CBC_CFP
+#define SND_SOC_DAIFMT_BP_FC		SND_SOC_DAIFMT_CBP_CFC
+#define SND_SOC_DAIFMT_BC_FC		SND_SOC_DAIFMT_CBC_CFC
+
 /* Describes the possible PCM format */
 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT	48
 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_MASK	(0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
@@ -282,6 +288,7 @@ struct snd_soc_dai_ops {
 	 * Called by soc_card drivers, normally in their hw_params.
 	 */
 	int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
+	int (*set_fmt_new)(struct snd_soc_dai *dai, unsigned int fmt);
 	int (*xlate_tdm_slot_mask)(unsigned int slots,
 		unsigned int *tx_mask, unsigned int *rx_mask);
 	int (*set_tdm_slot)(struct snd_soc_dai *dai,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9574f86dd4de2..90f4265bea501 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1235,7 +1235,8 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd,
 	for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
 		unsigned int fmt = dai_fmt;
 
-		if (snd_soc_component_is_codec(cpu_dai->component))
+		if (cpu_dai->driver->ops->set_fmt_new ||
+		    snd_soc_component_is_codec(cpu_dai->component))
 			fmt = inv_dai_fmt;
 
 		ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c
index 6078afe335f88..996712f4d9bfd 100644
--- a/sound/soc/soc-dai.c
+++ b/sound/soc/soc-dai.c
@@ -209,7 +209,10 @@ int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 	int ret = -ENOTSUPP;
 
 	if (dai->driver->ops &&
-	    dai->driver->ops->set_fmt)
+	    dai->driver->ops->set_fmt_new)
+		ret = dai->driver->ops->set_fmt_new(dai, fmt);
+	else if (dai->driver->ops &&
+		 dai->driver->ops->set_fmt)
 		ret = dai->driver->ops->set_fmt(dai, fmt);
 
 	return soc_dai_ret(dai, ret);
-- 
2.30.2