commit 8abba5d64835c636d97ac0009ab7430ed832cb93
author Nicolin Chen <Guangyu.Chen@freescale.com> Tue Apr 01 11:17:07 2014 +0800
committer Mark Brown <broonie@linaro.org> Mon Apr 14 17:26:05 2014 +0100
tree 76c002e8c80b6ed8a4859c2dbf9b1ea5edc2ab8e
parent e6b398465821fb8e08d208bd4ef2b5b73ce87b58

ASoC: fsl_sai: Separately enable interrupts for Tx and Rx streams

We only enable one side interrupt for each stream since over/underrun
on the opposite stream would be resulted from what we previously did,
enabling TERE but remaining FRDE disabled, even though the xrun on the
opposite direction will not break the current stream.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Acked-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/fsl/fsl_sai.c

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 80cca7b..21de5bd 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -396,6 +396,8 @@
 		}
 
 		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx),
+				   FSL_SAI_CSR_xIE_MASK, FSL_SAI_FLAGS);
+		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx),
 				   FSL_SAI_CSR_FRDE, FSL_SAI_CSR_FRDE);
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
@@ -403,6 +405,8 @@
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx),
 				   FSL_SAI_CSR_FRDE, 0);
+		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx),
+				   FSL_SAI_CSR_xIE_MASK, 0);
 
 		if (!(tcsr & FSL_SAI_CSR_FRDE || rcsr & FSL_SAI_CSR_FRDE)) {
 			regmap_update_bits(sai->regmap, FSL_SAI_TCSR,
@@ -463,8 +467,8 @@
 {
 	struct fsl_sai *sai = dev_get_drvdata(cpu_dai->dev);
 
-	regmap_update_bits(sai->regmap, FSL_SAI_TCSR, 0xffffffff, FSL_SAI_FLAGS);
-	regmap_update_bits(sai->regmap, FSL_SAI_RCSR, 0xffffffff, FSL_SAI_FLAGS);
+	regmap_update_bits(sai->regmap, FSL_SAI_TCSR, 0xffffffff, 0x0);
+	regmap_update_bits(sai->regmap, FSL_SAI_RCSR, 0xffffffff, 0x0);
 	regmap_update_bits(sai->regmap, FSL_SAI_TCR1, FSL_SAI_CR1_RFW_MASK,
 			   FSL_SAI_MAXBURST_TX * 2);
 	regmap_update_bits(sai->regmap, FSL_SAI_RCR1, FSL_SAI_CR1_RFW_MASK,

sound/soc/fsl/fsl_sai.h

diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h
index 64b6fe7..be26d46 100644
--- a/sound/soc/fsl/fsl_sai.h
+++ b/sound/soc/fsl/fsl_sai.h
@@ -58,6 +58,7 @@
 #define FSL_SAI_CSR_FWF		BIT(17)
 #define FSL_SAI_CSR_FRF		BIT(16)
 #define FSL_SAI_CSR_xIE_SHIFT	8
+#define FSL_SAI_CSR_xIE_MASK	(0x1f << FSL_SAI_CSR_xIE_SHIFT)
 #define FSL_SAI_CSR_WSIE	BIT(12)
 #define FSL_SAI_CSR_SEIE	BIT(11)
 #define FSL_SAI_CSR_FEIE	BIT(10)