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[PATCH] bus: imx-weim: populate devices on a simple bus

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Liu Ying

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Jul 4, 2014, 5:20:02 AM7/4/14
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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...@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

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Shawn Guo

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Jul 7, 2014, 1:50:01 AM7/7/14
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On Fri, Jul 04, 2014 at 05:00:41PM +0800, Liu Ying wrote:
> 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...@freescale.com>

Applied, thanks.
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