4.9-stable patches

[thirdparty/kernel/stable-queue.git] / queue-4.9 / asoc-fsl_asrc-fix-the-issue-about-unsupported-rate.patch

From b06c58c2a1eed571ea2a6640fdb85b7b00196b1e Mon Sep 17 00:00:00 2001
From: "S.j. Wang" <shengjiu.wang@nxp.com>
Date: Wed, 15 May 2019 06:42:18 +0000
Subject: ASoC: fsl_asrc: Fix the issue about unsupported rate

From: S.j. Wang <shengjiu.wang@nxp.com>

commit b06c58c2a1eed571ea2a6640fdb85b7b00196b1e upstream.

When the output sample rate is [8kHz, 30kHz], the limitation
of the supported ratio range is [1/24, 8]. In the driver
we use (8kHz, 30kHz) instead of [8kHz, 30kHz].
So this patch is to fix this issue and the potential rounding
issue with divider.

Fixes: fff6e03c7b65 ("ASoC: fsl_asrc: add support for 8-30kHz
output sample rate")
Cc: <stable@vger.kernel.org>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/fsl/fsl_asrc.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c
@@ -286,8 +286,8 @@ static int fsl_asrc_config_pair(struct f
 		return -EINVAL;
 	}
 
-	if ((outrate > 8000 && outrate < 30000) &&
-	    (outrate/inrate > 24 || inrate/outrate > 8)) {
+	if ((outrate >= 8000 && outrate <= 30000) &&
+	    (outrate > 24 * inrate || inrate > 8 * outrate)) {
 		pair_err("exceed supported ratio range [1/24, 8] for \
 				inrate/outrate: %d/%d\n", inrate, outrate);
 		return -EINVAL;