linux-kernel - [PATCH] ASoC: uniphier: fix broken sound if use SRC in replay

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Date:   Fri, 23 Feb 2018 21:17:01 +0900
From:   Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>
To:     Mark Brown <broonie@...nel.org>, alsa-devel@...a-project.org
Cc:     Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>
Subject: [PATCH] ASoC: uniphier: fix broken sound if use SRC in replay

This patch fixes settings for ports with SRC. These ports need to
set the fixed audio rate and clock. If not, the SRC outputs broken
sound.

Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>
---
 sound/soc/uniphier/aio-core.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/sound/soc/uniphier/aio-core.c b/sound/soc/uniphier/aio-core.c
index 1e5f053d9f6b..1711361fc0c2 100644
--- a/sound/soc/uniphier/aio-core.c
+++ b/sound/soc/uniphier/aio-core.c
@@ -501,7 +501,7 @@ int aio_port_set_clk(struct uniphier_aio_sub *sub)
 				OPORTMXCTR2_MSSEL_MASTER |
 				OPORTMXCTR2_EXTLSIFSSEL_36 |
 				OPORTMXCTR2_DACCKSEL_1_2;
-		} else {
+		} else if (sub->swm->type == PORT_TYPE_SPDIF) {
 			if (sub->aio->pll_out >= ARRAY_SIZE(v_pll)) {
 				dev_err(dev, "PLL(%d) is invalid\n",
 					sub->aio->pll_out);
@@ -521,6 +521,11 @@ int aio_port_set_clk(struct uniphier_aio_sub *sub)
 				v |= OPORTMXCTR2_EXTLSIFSSEL_24;
 				break;
 			}
+		} else {
+			v = OPORTMXCTR2_ACLKSEL_A1 |
+				OPORTMXCTR2_MSSEL_MASTER |
+				OPORTMXCTR2_EXTLSIFSSEL_36 |
+				OPORTMXCTR2_DACCKSEL_1_2;
 		}
 		regmap_write(r, OPORTMXCTR2(sub->swm->oport.map), v);
 	} else {
@@ -550,11 +555,19 @@ int aio_port_set_param(struct uniphier_aio_sub *sub, int pass_through,
 		       const struct snd_pcm_hw_params *params)
 {
 	struct regmap *r = sub->aio->chip->regmap;
+	unsigned int rate;
 	u32 v;
 	int ret;
 
 	if (!pass_through) {
-		ret = aio_port_set_rate(sub, params_rate(params));
+		if (sub->swm->type == PORT_TYPE_EVE ||
+		    sub->swm->type == PORT_TYPE_CONV) {
+			rate = 48000;
+		} else {
+			rate = params_rate(params);
+		}
+
+		ret = aio_port_set_rate(sub, rate);
 		if (ret)
 			return ret;
 
-- 
2.16.1