From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:47999) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TifpO-00042P-BU for qemu-devel@nongnu.org; Wed, 12 Dec 2012 01:30:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TifpG-0008CS-Uc for qemu-devel@nongnu.org; Wed, 12 Dec 2012 01:29:58 -0500 Received: from mout.web.de ([212.227.15.3]:63531) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TifpG-0008CJ-Ku for qemu-devel@nongnu.org; Wed, 12 Dec 2012 01:29:50 -0500 From: =?UTF-8?q?Andreas=20F=C3=A4rber?= Date: Wed, 12 Dec 2012 07:29:32 +0100 Message-Id: <1355293773-18361-2-git-send-email-andreas.faerber@web.de> In-Reply-To: <1355293773-18361-1-git-send-email-andreas.faerber@web.de> References: <1355293773-18361-1-git-send-email-andreas.faerber@web.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH 1/2] omap_i2c: Clear SBD bit in STAT register on DATA read List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Blue Swirl , Alex Horn , =?UTF-8?q?Andreas=20F=C3=A4rber?= , Anthony Liguori After reading a single-byte I2C response such as the tmp105's response to 0x01 0x00, the SBD status bit would not get reset on next read, still indicating validity of only a single byte. Clear it on next word read. Signed-off-by: Andreas Färber --- hw/omap_i2c.c | 1 + 1 Datei geändert, 1 Zeile hinzugefügt(+) diff --git a/hw/omap_i2c.c b/hw/omap_i2c.c index ba08e64..308c088 100644 --- a/hw/omap_i2c.c +++ b/hw/omap_i2c.c @@ -196,6 +196,7 @@ static uint32_t omap_i2c_read(void *opaque, hwaddr addr) s->stat |= 1 << 15; /* SBD */ s->rxlen = 0; } else if (s->rxlen > 1) { + s->stat &= ~(1 << 15); /* SBD */ if (s->rxlen > 2) s->fifo >>= 16; s->rxlen -= 2; -- 1.7.10.4