linux-kernel - [PATCH 3.4 025/146] ASoC: cs4271: Increase delay time after reset

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1442307861-32031-25-git-send-email-lizf@kernel.org>
Date:	Tue, 15 Sep 2015 17:02:20 +0800
From:	lizf@...nel.org
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Pascal Huerst <pascal.huerst@...il.com>,
	Mark Brown <broonie@...nel.org>, Zefan Li <lizefan@...wei.com>
Subject: [PATCH 3.4 025/146] ASoC: cs4271: Increase delay time after reset

From: Pascal Huerst <pascal.huerst@...il.com>

3.4.109-rc1 review patch.  If anyone has any objections, please let me know.

------------------


commit 74ff960222d90999508b4ba0d3449f796695b6d5 upstream.

The delay time after a reset in the codec probe callback was too short,
and did not work on certain hw because the codec needs more time to
power on. This increases the delay time from 1us to 1ms.

Signed-off-by: Pascal Huerst <pascal.huerst@...il.com>
Acked-by: Brian Austin <brian.austin@...rus.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
[lizf: Backported to 3.4: adjust context]
Signed-off-by: Zefan Li <lizefan@...wei.com>
---
 sound/soc/codecs/cs4271.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index f9e2bda..5405932 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -475,10 +475,10 @@ static int cs4271_probe(struct snd_soc_codec *codec)
 	if (gpio_nreset >= 0) {
 		/* Reset codec */
 		gpio_direction_output(gpio_nreset, 0);
-		udelay(1);
+		mdelay(1);
 		gpio_set_value(gpio_nreset, 1);
 		/* Give the codec time to wake up */
-		udelay(1);
+		mdelay(1);
 	}
 
 	cs4271->gpio_nreset = gpio_nreset;
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/