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From: Marius Strobl <marius@FreeBSD.org>
Date: Sat, 14 Apr 2012 17:27:35 +0000 (UTC)
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Subject: svn commit: r234293 - head/sys/arm/at91
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Author: marius
Date: Sat Apr 14 17:27:34 2012
New Revision: 234293
URL: http://svn.freebsd.org/changeset/base/234293

Log:
  Generate an obviously missing STOP when having finished transmitting data.
  This fixes communication with PCF8563.

Modified:
  head/sys/arm/at91/at91_twi.c

Modified: head/sys/arm/at91/at91_twi.c
==============================================================================
--- head/sys/arm/at91/at91_twi.c	Sat Apr 14 17:17:55 2012	(r234292)
+++ head/sys/arm/at91/at91_twi.c	Sat Apr 14 17:27:34 2012	(r234293)
@@ -364,6 +364,7 @@ at91_twi_transfer(device_t dev, struct i
 					goto out;
 				WR4(sc, TWI_THR, *buf++);
 			}
+			WR4(sc, TWI_CR, TWI_CR_STOP);
 		}
 		if ((err = at91_twi_wait(sc, TWI_SR_TXCOMP)))
 			break;