[PATCH v3 12/14] ASoC: rockchip: i2s: Add support for frame inversion

[Sugar Zhang]

This patch adds support for frame inversion.

Signed-off-by: Sugar Zhang <sugar.zhang at rock-chips.com>
---

Changes in v3: None
Changes in v2: None

 sound/soc/rockchip/rockchip_i2s.c | 20 +++++++++++++++++---
 sound/soc/rockchip/rockchip_i2s.h | 10 ++++++----
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index ab060fc..801fc60 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -236,13 +236,27 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 
 	regmap_update_bits(i2s->regmap, I2S_CKR, mask, val);
 
-	mask = I2S_CKR_CKP_MASK;
+	mask = I2S_CKR_CKP_MASK | I2S_CKR_TLP_MASK | I2S_CKR_RLP_MASK;
 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 	case SND_SOC_DAIFMT_NB_NF:
-		val = I2S_CKR_CKP_NEG;
+		val = I2S_CKR_CKP_NORMAL |
+		      I2S_CKR_TLP_NORMAL |
+		      I2S_CKR_RLP_NORMAL;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		val = I2S_CKR_CKP_NORMAL |
+		      I2S_CKR_TLP_INVERTED |
+		      I2S_CKR_RLP_INVERTED;
 		break;
 	case SND_SOC_DAIFMT_IB_NF:
-		val = I2S_CKR_CKP_POS;
+		val = I2S_CKR_CKP_INVERTED |
+		      I2S_CKR_TLP_NORMAL |
+		      I2S_CKR_RLP_NORMAL;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		val = I2S_CKR_CKP_INVERTED |
+		      I2S_CKR_TLP_INVERTED |
+		      I2S_CKR_RLP_INVERTED;
 		break;
 	default:
 		ret = -EINVAL;
diff --git a/sound/soc/rockchip/rockchip_i2s.h b/sound/soc/rockchip/rockchip_i2s.h
index fcaae24..251851b 100644
--- a/sound/soc/rockchip/rockchip_i2s.h
+++ b/sound/soc/rockchip/rockchip_i2s.h
@@ -88,15 +88,17 @@
 #define I2S_CKR_MSS_SLAVE	(1 << I2S_CKR_MSS_SHIFT)
 #define I2S_CKR_MSS_MASK	(1 << I2S_CKR_MSS_SHIFT)
 #define I2S_CKR_CKP_SHIFT	26
-#define I2S_CKR_CKP_NEG		(0 << I2S_CKR_CKP_SHIFT)
-#define I2S_CKR_CKP_POS		(1 << I2S_CKR_CKP_SHIFT)
+#define I2S_CKR_CKP_NORMAL	(0 << I2S_CKR_CKP_SHIFT)
+#define I2S_CKR_CKP_INVERTED	(1 << I2S_CKR_CKP_SHIFT)
 #define I2S_CKR_CKP_MASK	(1 << I2S_CKR_CKP_SHIFT)
 #define I2S_CKR_RLP_SHIFT	25
 #define I2S_CKR_RLP_NORMAL	(0 << I2S_CKR_RLP_SHIFT)
-#define I2S_CKR_RLP_OPPSITE	(1 << I2S_CKR_RLP_SHIFT)
+#define I2S_CKR_RLP_INVERTED	(1 << I2S_CKR_RLP_SHIFT)
+#define I2S_CKR_RLP_MASK	(1 << I2S_CKR_RLP_SHIFT)
 #define I2S_CKR_TLP_SHIFT	24
 #define I2S_CKR_TLP_NORMAL	(0 << I2S_CKR_TLP_SHIFT)
-#define I2S_CKR_TLP_OPPSITE	(1 << I2S_CKR_TLP_SHIFT)
+#define I2S_CKR_TLP_INVERTED	(1 << I2S_CKR_TLP_SHIFT)
+#define I2S_CKR_TLP_MASK	(1 << I2S_CKR_TLP_SHIFT)
 #define I2S_CKR_MDIV_SHIFT	16
 #define I2S_CKR_MDIV(x)		((x - 1) << I2S_CKR_MDIV_SHIFT)
 #define I2S_CKR_MDIV_MASK	(0xff << I2S_CKR_MDIV_SHIFT)
-- 
2.7.4