From: Liu Ying <Ying.Liu@freescale.com>
To: <linux-kernel@vger.kernel.org>
Cc: <shawn.guo@freescale.com>, <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH] bus: imx-weim: populate devices on a simple bus
Date: Fri, 4 Jul 2014 17:00:41 +0800 [thread overview]
Message-ID: <1404464441-31755-1-git-send-email-Ying.Liu@freescale.com> (raw)
There could be some memory map devices located in
a certain chip select region of the i.MX WEIM.
The devices could be attached to a simple bus(for
example, a AXI bus) whose root node is one child
device tree node of the i.MX WEIM device tree node.
There should be a bridge(very likely, software
transparent) bewteen the i.MX WEIM and the simple bus.
This patch makes the i.MX WEIM driver possible to
populate devices on a simple bus. In this way, people
may try various IPs(in a FPGA, maybe) outside of i.MX
chips with the i.MX WEIM embedded.
Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
---
drivers/bus/imx-weim.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/imx-weim.c b/drivers/bus/imx-weim.c
index f8ee13c..75c9681 100644
--- a/drivers/bus/imx-weim.c
+++ b/drivers/bus/imx-weim.c
@@ -162,7 +162,9 @@ static int __init weim_parse_dt(struct platform_device *pdev,
}
}
- ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
+ ret = of_platform_populate(pdev->dev.of_node,
+ of_default_bus_match_table,
+ NULL, &pdev->dev);
if (ret)
dev_err(&pdev->dev, "%s fail to create devices.\n",
pdev->dev.of_node->full_name);
--
1.7.9.5
next reply other threads:[~2014-07-04 9:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-04 9:00 Liu Ying [this message]
2014-07-07 5:49 ` Shawn Guo
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