[PATCH 1/9] ASoC: dwc: Added a quirk DW_I2S_QUIRK_16BIT_IDX_OVERRIDE to dwc driver

[Alex Deucher]

From: Vijendar Mukunda <Vijendar.Mukunda at amd.com>

Added quirk DW_I2S_QUIRK_16BIT_IDX_OVERRIDE to Designware
driver. This quirk will set idx value to 1.

By setting this quirk, it will override supported format
as 16 bit resolution and bus width as 2 Bytes.

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---

This patch is already applied to the audio tree, I'm just
including it here for completeness since it's not yet in
the drm tree.

include/sound/designware_i2s.h | 1 +
 sound/soc/dwc/dwc-i2s.c        | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/include/sound/designware_i2s.h b/include/sound/designware_i2s.h
index 5681855..830f5ca 100644
--- a/include/sound/designware_i2s.h
+++ b/include/sound/designware_i2s.h
@@ -47,6 +47,7 @@ struct i2s_platform_data {
 
 	#define DW_I2S_QUIRK_COMP_REG_OFFSET	(1 << 0)
 	#define DW_I2S_QUIRK_COMP_PARAM1	(1 << 1)
+	#define DW_I2S_QUIRK_16BIT_IDX_OVERRIDE (1 << 2)
 	unsigned int quirks;
 	unsigned int i2s_reg_comp1;
 	unsigned int i2s_reg_comp2;
diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index 9c46e41..9160676 100644
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -496,6 +496,8 @@ static int dw_configure_dai(struct dw_i2s_dev *dev,
 		idx = COMP1_TX_WORDSIZE_0(comp1);
 		if (WARN_ON(idx >= ARRAY_SIZE(formats)))
 			return -EINVAL;
+		if (dev->quirks & DW_I2S_QUIRK_16BIT_IDX_OVERRIDE)
+			idx = 1;
 		dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM;
 		dw_i2s_dai->playback.channels_max =
 				1 << (COMP1_TX_CHANNELS(comp1) + 1);
@@ -508,6 +510,8 @@ static int dw_configure_dai(struct dw_i2s_dev *dev,
 		idx = COMP2_RX_WORDSIZE_0(comp2);
 		if (WARN_ON(idx >= ARRAY_SIZE(formats)))
 			return -EINVAL;
+		if (dev->quirks & DW_I2S_QUIRK_16BIT_IDX_OVERRIDE)
+			idx = 1;
 		dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM;
 		dw_i2s_dai->capture.channels_max =
 				1 << (COMP1_RX_CHANNELS(comp1) + 1);
@@ -543,6 +547,8 @@ static int dw_configure_dai_by_pd(struct dw_i2s_dev *dev,
 	if (ret < 0)
 		return ret;
 
+	if (dev->quirks & DW_I2S_QUIRK_16BIT_IDX_OVERRIDE)
+		idx = 1;
 	/* Set DMA slaves info */
 	dev->play_dma_data.pd.data = pdata->play_dma_data;
 	dev->capture_dma_data.pd.data = pdata->capture_dma_data;
-- 
2.5.5