From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UeWQu-0000ZZ-Nk for barebox@lists.infradead.org; Mon, 20 May 2013 20:11:51 +0000 From: Sascha Hauer Date: Mon, 20 May 2013 22:11:22 +0200 Message-Id: <1369080684-11138-4-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1369080684-11138-1-git-send-email-s.hauer@pengutronix.de> References: <1369080684-11138-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 3/5] i2c: Add support for dynamic i2c bus numbers To: barebox@lists.infradead.org Signed-off-by: Sascha Hauer --- drivers/i2c/i2c.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/i2c.c b/drivers/i2c/i2c.c index 53a11fe..ddf0082 100644 --- a/drivers/i2c/i2c.c +++ b/drivers/i2c/i2c.c @@ -384,8 +384,17 @@ int i2c_add_numbered_adapter(struct i2c_adapter *adapter) { int ret; - if (i2c_get_adapter(adapter->nr)) - return -EBUSY; + if (adapter->nr < 0) { + int nr; + + for (nr = 0;; nr++) + if (!i2c_get_adapter(nr)) + break; + adapter->nr = nr; + } else { + if (i2c_get_adapter(adapter->nr)) + return -EBUSY; + } adapter->dev.id = adapter->nr; strcpy(adapter->dev.name, "i2c"); -- 1.8.2.rc2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox