From: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Date: Tue, 5 Jan 2016 15:05:36 +0000 (+0000)
Subject: ASoC: da7219: Correct BCLK inversion for DSP DAI format mode
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4acfa36be618eb8ac3aa39f473e7550710216435;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ASoC: da7219: Correct BCLK inversion for DSP DAI format mode

By default the device latches data on the falling edge of the
BCLK in DSP mode, whereas the expectation for normal BCLK is to
latch on the rising edge. This updates the driver to invert the
BCLK configuration for DSP mode, to align with expected behaviour.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c
index 9c7e8ec68b94..81c0708b85c1 100644
--- a/sound/soc/codecs/da7219.c
+++ b/sound/soc/codecs/da7219.c
@@ -1156,18 +1156,44 @@ static int da7219_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 		return -EINVAL;
 	}
 
-	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
-	case SND_SOC_DAIFMT_NB_NF:
-		break;
-	case SND_SOC_DAIFMT_NB_IF:
-		dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
-		break;
-	case SND_SOC_DAIFMT_IB_NF:
-		dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+	case SND_SOC_DAIFMT_LEFT_J:
+	case SND_SOC_DAIFMT_RIGHT_J:
+		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+		case SND_SOC_DAIFMT_NB_NF:
+			break;
+		case SND_SOC_DAIFMT_NB_IF:
+			dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
+			break;
+		case SND_SOC_DAIFMT_IB_NF:
+			dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
+			break;
+		case SND_SOC_DAIFMT_IB_IF:
+			dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
+					DA7219_DAI_CLK_POL_INV;
+			break;
+		default:
+			return -EINVAL;
+		}
 		break;
-	case SND_SOC_DAIFMT_IB_IF:
-		dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
-				DA7219_DAI_CLK_POL_INV;
+	case SND_SOC_DAIFMT_DSP_B:
+		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+		case SND_SOC_DAIFMT_NB_NF:
+			dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
+			break;
+		case SND_SOC_DAIFMT_NB_IF:
+			dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
+					DA7219_DAI_CLK_POL_INV;
+			break;
+		case SND_SOC_DAIFMT_IB_NF:
+			break;
+		case SND_SOC_DAIFMT_IB_IF:
+			dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
+			break;
+		default:
+			return -EINVAL;
+		}
 		break;
 	default:
 		return -EINVAL;