linux-kernel - [PATCH 4.2.y-ckt 287/305] ASoC: arizona: Fix bclk for sample rates that are multiple of 4kHz

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Message-Id: <1452902519-2754-288-git-send-email-kamal@canonical.com>
Date:	Fri, 15 Jan 2016 16:01:41 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Nikesh Oswal <Nikesh.Oswal@...rus.com>,
	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>,
	Mark Brown <broonie@...nel.org>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 4.2.y-ckt 287/305] ASoC: arizona: Fix bclk for sample rates that are multiple of 4kHz

4.2.8-ckt2 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Nikesh Oswal <Nikesh.Oswal@...rus.com>

commit e73694d871867cae8471d2350ce89acb38bc2b63 upstream.

For a sample rate of 12kHz the bclk was taken from the 44.1kHz table as
we test for a multiple of 8kHz. This patch fixes this issue by testing
for multiples of 4kHz instead.

Signed-off-by: Nikesh Oswal <Nikesh.Oswal@...rus.com>
Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 sound/soc/codecs/arizona.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 4180827..02b1e0c 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1499,7 +1499,7 @@ static int arizona_hw_params(struct snd_pcm_substream *substream,
 	bool reconfig;
 	unsigned int aif_tx_state, aif_rx_state;
 
-	if (params_rate(params) % 8000)
+	if (params_rate(params) % 4000)
 		rates = &arizona_44k1_bclk_rates[0];
 	else
 		rates = &arizona_48k_bclk_rates[0];
-- 
1.9.1