All of lore.kernel.org
 help / color / mirror / Atom feed
From: Oder Chiou <oder_chiou@realtek.com>
To: <broonie@kernel.org>, <lgirdwood@gmail.com>
Cc: Oder Chiou <oder_chiou@realtek.com>,
	jack.yu@realtek.com, alsa-devel@alsa-project.org,
	cychiang@google.com, albertchen@realtek.com,
	derek.fang@realtek.com, shumingf@realtek.com, flove@realtek.com
Subject: [PATCH] ASoC: rl6231: Modify the target DMIC clock rate
Date: Thu, 4 Jun 2020 15:10:16 +0800	[thread overview]
Message-ID: <20200604071016.3981-1-oder_chiou@realtek.com> (raw)

Some DMIC components will not work correctly in the clock rate 3.072MHz.
We recommend the clock rate 1.536MHz in the gerenal case.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
---
 sound/soc/codecs/rl6231.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/rl6231.c b/sound/soc/codecs/rl6231.c
index 2586d1cafc0c..8c9daf32bab8 100644
--- a/sound/soc/codecs/rl6231.c
+++ b/sound/soc/codecs/rl6231.c
@@ -80,8 +80,8 @@ int rl6231_calc_dmic_clk(int rate)
 	for (i = 0; i < ARRAY_SIZE(div); i++) {
 		if ((div[i] % 3) == 0)
 			continue;
-		/* find divider that gives DMIC frequency below 3.072MHz */
-		if (3072000 * div[i] >= rate)
+		/* find divider that gives DMIC frequency below 1.536MHz */
+		if (1536000 * div[i] >= rate)
 			return i;
 	}
 
-- 
2.25.1


             reply	other threads:[~2020-06-04  7:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-04  7:10 Oder Chiou [this message]
2020-06-04 14:05 ` [PATCH] ASoC: rl6231: Modify the target DMIC clock rate Mark Brown

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200604071016.3981-1-oder_chiou@realtek.com \
    --to=oder_chiou@realtek.com \
    --cc=albertchen@realtek.com \
    --cc=alsa-devel@alsa-project.org \
    --cc=broonie@kernel.org \
    --cc=cychiang@google.com \
    --cc=derek.fang@realtek.com \
    --cc=flove@realtek.com \
    --cc=jack.yu@realtek.com \
    --cc=lgirdwood@gmail.com \
    --cc=shumingf@realtek.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.