Specify clock provider directly to CPU DAIs

Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

Currently the 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. However, as things
are now broken down into components which can be connected as either
the CPU or CODEC side of a DAI link it simplifies things if each
side of the link is just told if it is provider or consumer of the
clocks. Making this change allows us to remove one of the last parts
of the ASoC core that needs to know if a driver is a CODEC driver,
where it flips the clock format specifier if a CODEC driver is used on
the CPU side of a DAI link, as well as just being conceptually more
consistent with componentisation.

The basic idea of this patch chain is to change the set_fmt callback
from specifying if the CODEC is provider/consumer into directly
specifying if the component is provider/consumer. To do this we add
some new defines, and then to preserve bisectability, the migration is
done by adding a new callback, converting over all existing CPU side
drivers, converting the core, and then finally reverting back to the
old callback.

Converting the platform drivers makes sense as the existing defines
are from the perspective of the CODEC and there are more CODEC drivers
than platform drivers.

Obviously a fair amount of this patch chain I was only able to build
test, so any testing that can be done would be greatly appreciated.

4 files changed, 11 insertions, 11 deletions

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 70c827162be4..fdd9561c6a9f 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -671,11 +671,11 @@ static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 		return -EINVAL;
 	}
 
-	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
-	case SND_SOC_DAIFMT_CBM_CFM:
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BC_FC:
 		tmp |= mod_slave;
 		break;
-	case SND_SOC_DAIFMT_CBS_CFS:
+	case SND_SOC_DAIFMT_BP_FP:
 		/*
 		 * Set default source clock in Master mode, only when the
 		 * CLK_I2S_RCLK_SRC clock is not exposed so we ensure any
diff --git a/sound/soc/samsung/pcm.c b/sound/soc/samsung/pcm.c
index 4c4dfde0568f..c2eb3534bfcc 100644
--- a/sound/soc/samsung/pcm.c
+++ b/sound/soc/samsung/pcm.c
@@ -340,8 +340,8 @@ static int s3c_pcm_set_fmt(struct snd_soc_dai *cpu_dai,
 		goto exit;
 	}
 
-	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
-	case SND_SOC_DAIFMT_CBS_CFS:
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BP_FP:
 		/* Nothing to do, Master by default */
 		break;
 	default:
diff --git a/sound/soc/samsung/s3c-i2s-v2.c b/sound/soc/samsung/s3c-i2s-v2.c
index de66cc422e6e..1bec72246ed0 100644
--- a/sound/soc/samsung/s3c-i2s-v2.c
+++ b/sound/soc/samsung/s3c-i2s-v2.c
@@ -252,12 +252,12 @@ static int s3c2412_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 	iismod = readl(i2s->regs + S3C2412_IISMOD);
 	pr_debug("hw_params r: IISMOD: %x \n", iismod);
 
-	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
-	case SND_SOC_DAIFMT_CBM_CFM:
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BC_FC:
 		i2s->master = 0;
 		iismod |= S3C2412_IISMOD_SLAVE;
 		break;
-	case SND_SOC_DAIFMT_CBS_CFS:
+	case SND_SOC_DAIFMT_BP_FP:
 		i2s->master = 1;
 		iismod &= ~S3C2412_IISMOD_SLAVE;
 		break;
diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c
index 0f46304eaa4f..4082ad7cbcc1 100644
--- a/sound/soc/samsung/s3c24xx-i2s.c
+++ b/sound/soc/samsung/s3c24xx-i2s.c
@@ -169,11 +169,11 @@ static int s3c24xx_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 	iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
 	pr_debug("hw_params r: IISMOD: %x \n", iismod);
 
-	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
-	case SND_SOC_DAIFMT_CBM_CFM:
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BC_CFC:
 		iismod |= S3C2410_IISMOD_SLAVE;
 		break;
-	case SND_SOC_DAIFMT_CBS_CFS:
+	case SND_SOC_DAIFMT_BP_FP:
 		iismod &= ~S3C2410_IISMOD_SLAVE;
 		break;
 	default: