From patchwork Wed Dec 12 06:29:32 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andreas_F=C3=A4rber?= X-Patchwork-Id: 205443 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 6AB8E2C00A4 for ; Wed, 12 Dec 2012 17:30:37 +1100 (EST) Received: from localhost ([::1]:36957 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tifpy-0005CY-SU for incoming@patchwork.ozlabs.org; Wed, 12 Dec 2012 01:30:34 -0500 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 Received: from localhost.localdomain ([84.148.43.42]) by smtp.web.de (mrweb001) with ESMTPSA (Nemesis) id 0M8QaI-1Sx3JS1FNC-00vpGi; Wed, 12 Dec 2012 07:29:48 +0100 From: =?UTF-8?q?Andreas=20F=C3=A4rber?= To: qemu-devel@nongnu.org Date: Wed, 12 Dec 2012 07:29:32 +0100 Message-Id: <1355293773-18361-2-git-send-email-andreas.faerber@web.de> X-Mailer: git-send-email 1.7.10.4 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 X-Provags-ID: V02:K0:BvmmHx7SeE2ah/tXK3Zx/4h3ZI8dc334vyCGi+D2vEX eVvfVGQLBt5WZGg7k25z6HbbLC9zgpVEQvWberhEsavmFpDAQW emJH5M0hG4Rp1ed+7uKyLtIcCmQtfEZ/pJ88bHnlumzLsP+ely tscCvJ0sKcXNUYSP+6twwnTZP3bewB6gSZsa7n8LM0I19BZb2w sjiz2z8JPi5LM7uOHesgg== X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 212.227.15.3 Cc: Peter Maydell , Blue Swirl , Alex Horn , =?UTF-8?q?Andreas=20F=C3=A4rber?= , Anthony Liguori Subject: [Qemu-devel] [PATCH 1/2] omap_i2c: Clear SBD bit in STAT register on DATA read X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org 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;