From: "Michael Büsch" <m@bues.ch>
To: Antti Palosaari <crope@iki.fi>
Cc: linux-media <linux-media@vger.kernel.org>
Subject: [PATCH] af9035: Use usleep_range() in fc0011 support code
Date: Tue, 3 Apr 2012 11:11:30 +0200 [thread overview]
Message-ID: <20120403111130.6a41e347@milhouse> (raw)
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Use usleep_range() instead of msleep() to improve power saving opportunities.
Signed-off-by: Michael Buesch <m@bues.ch>
---
Index: linux/drivers/media/dvb/dvb-usb/af9035.c
===================================================================
--- linux.orig/drivers/media/dvb/dvb-usb/af9035.c 2012-04-03 10:49:18.270364916 +0200
+++ linux/drivers/media/dvb/dvb-usb/af9035.c 2012-04-03 10:49:57.495125781 +0200
@@ -590,7 +590,7 @@
err = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
if (err)
return err;
- msleep(10);
+ usleep_range(10000, 50000);
break;
case FC0011_FE_CALLBACK_RESET:
err = af9035_wr_reg(d, 0xd8e9, 1);
@@ -602,11 +602,11 @@
err = af9035_wr_reg(d, 0xd8e7, 1);
if (err)
return err;
- msleep(10);
+ usleep_range(10000, 20000);
err = af9035_wr_reg(d, 0xd8e7, 0);
if (err)
return err;
- msleep(10);
+ usleep_range(10000, 20000);
break;
default:
return -EINVAL;
--
Greetings, Michael.
PGP encryption is encouraged / 908D8B0E
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next reply other threads:[~2012-04-03 9:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-03 9:11 Michael Büsch [this message]
2012-04-03 10:20 ` [PATCH] af9035: Use usleep_range() in fc0011 support code Antti Palosaari
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