ASoC: sti: suppress inappropriate DT fields

Update to suppress some DT nodes that can be handled in driver
using compatible string.
"dai-name", "st,version"and "st,mode" are suppressed
"st,tdm-mode" is added to handle TDM mode.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 3 insertions, 43 deletions

diff --git a/sound/soc/sti/uniperif_reader.c b/sound/soc/sti/uniperif_reader.c
index eb74a328c928..0e1c3ee56675 100644
--- a/sound/soc/sti/uniperif_reader.c
+++ b/sound/soc/sti/uniperif_reader.c
@@ -13,6 +13,7 @@
 
 #include "uniperif.h"
 
+#define UNIPERIF_READER_I2S_IN 0 /* reader id connected to I2S/TDM TX bus */
 /*
  * Note: snd_pcm_hardware is linked to DMA controller but is declared here to
  * integrate unireader capability in term of rate and supported channels
@@ -195,7 +196,7 @@ static int uni_reader_prepare(struct snd_pcm_substream *substream,
 	}
 
 	/* Calculate transfer size (in fifo cells and bytes) for frame count */
-	if (reader->info->type == SND_ST_UNIPERIF_TYPE_TDM) {
+	if (reader->type == SND_ST_UNIPERIF_TYPE_TDM) {
 		/* transfer size = unip frame size (in 32 bits FIFO cell) */
 		transfer_size =
 			sti_uniperiph_get_user_frame_size(runtime) / 4;
@@ -280,7 +281,7 @@ static int uni_reader_prepare(struct snd_pcm_substream *substream,
 	SET_UNIPERIF_ITM_BSET_MEM_BLK_READ(reader);
 
 	/* Enable underflow recovery interrupts */
-	if (reader->info->underflow_enabled) {
+	if (reader->underflow_enabled) {
 		SET_UNIPERIF_ITM_BSET_UNDERFLOW_REC_DONE(reader);
 		SET_UNIPERIF_ITM_BSET_UNDERFLOW_REC_FAILED(reader);
 	}
@@ -394,41 +395,6 @@ static void uni_reader_shutdown(struct snd_pcm_substream *substream,
 	}
 }
 
-static int uni_reader_parse_dt(struct platform_device *pdev,
-			       struct uniperif *reader)
-{
-	struct uniperif_info *info;
-	struct device_node *node = pdev->dev.of_node;
-	const char *mode;
-
-	/* Allocate memory for the info structure */
-	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
-	if (!info)
-		return -ENOMEM;
-
-	if (of_property_read_u32(node, "st,version", &reader->ver) ||
-	    reader->ver == SND_ST_UNIPERIF_VERSION_UNKNOWN) {
-		dev_err(&pdev->dev, "Unknown uniperipheral version ");
-		return -EINVAL;
-	}
-
-	/* Read the device mode property */
-	if (of_property_read_string(node, "st,mode", &mode)) {
-		dev_err(&pdev->dev, "uniperipheral mode not defined");
-		return -EINVAL;
-	}
-
-	if (strcasecmp(mode, "tdm") == 0)
-		info->type = SND_ST_UNIPERIF_TYPE_TDM;
-	else
-		info->type = SND_ST_UNIPERIF_TYPE_PCM;
-
-	/* Save the info structure */
-	reader->info = info;
-
-	return 0;
-}
-
 static const struct snd_soc_dai_ops uni_reader_dai_ops = {
 		.startup = uni_reader_startup,
 		.shutdown = uni_reader_shutdown,
@@ -448,12 +414,6 @@ int uni_reader_init(struct platform_device *pdev,
 	reader->state = UNIPERIF_STATE_STOPPED;
 	reader->dai_ops = &uni_reader_dai_ops;
 
-	ret = uni_reader_parse_dt(pdev, reader);
-	if (ret < 0) {
-		dev_err(reader->dev, "Failed to parse DeviceTree");
-		return ret;
-	}
-
 	if (UNIPERIF_TYPE_IS_TDM(reader))
 		reader->hw = &uni_tdm_hw;
 	else