linux-kernel - [PATCH 3.16.y-ckt 168/183] [media] Si2168: increase timeout to fix firmware loading

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Message-Id: <1425635874-19087-169-git-send-email-luis.henriques@canonical.com>
Date:	Fri,  6 Mar 2015 09:57:39 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Jurgen Kramer <gtmkramer@...all.nl>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 168/183] [media] Si2168: increase timeout to fix firmware loading

3.16.7-ckt8 -stable review patch.  If anyone has any objections, please let me know.

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

From: Jurgen Kramer <gtmkramer@...all.nl>

commit 551c33e729f654ecfaed00ad399f5d2a631b72cb upstream.

Increase si2168 cmd execute timeout to prevent firmware load failures. Tests
shows it takes up to 52ms to load the 'dvb-demod-si2168-a30-01.fw' firmware.
Increase timeout to a safe value of 70ms.

Signed-off-by: Jurgen Kramer <gtmkramer@...all.nl>
Reviewed-by: Antti Palosaari <crope@....fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@....samsung.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/media/dvb-frontends/si2168.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c
index 23cc7f089974..f6846954b9a6 100644
--- a/drivers/media/dvb-frontends/si2168.c
+++ b/drivers/media/dvb-frontends/si2168.c
@@ -39,7 +39,7 @@ static int si2168_cmd_execute(struct si2168 *s, struct si2168_cmd *cmd)
 
 	if (cmd->rlen) {
 		/* wait cmd execution terminate */
-		#define TIMEOUT 50
+		#define TIMEOUT 70
 		timeout = jiffies + msecs_to_jiffies(TIMEOUT);
 		while (!time_after(jiffies, timeout)) {
 			ret = i2c_master_recv(s->client, cmd->args, cmd->rlen);
--
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