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authorGrant Likely <grant.likely@linaro.org>2014-11-04 13:26:26 +0300
committerGrant Likely <grant.likely@linaro.org>2014-11-04 19:44:37 +0300
commit43c0767e17ac70e494b6a381b3a20be6a1a75c70 (patch)
tree5ff58b58c5b710cacd980def7f0ad12bb21f09c6 /drivers/of/platform.c
parent5f563585ab0afa8c35b3627d65c07966f7a5080e (diff)
downloadlinux-43c0767e17ac70e494b6a381b3a20be6a1a75c70.tar.xz
of/platform: Move platform devices under /sys/devices/platform
Currently the devices created by drivers/of/platform.c get created at the root of /sys/devices. This goes against the typical pattern for sysfs where the top level /sys/devices structure contains categories of devices, and the structure of devices is placed below that. To fix this, make the code in drivers/of/platform.c follow the drivers/base/platform.c behaviour, and use &platform_bus as the default parent for all new platform_devices and amba_devices. This change has been discussed for a long time, but nobody has actually acted on it. Userspace code that expects to find devices under a fixed /sys/devices/... path will be affected. It isn't /supposed/ to do that, but if anyone complains then I'll add a default-off workaround option to put them back into the root. Signed-off-by: Grant Likely <grant.likely@linaro.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/of/platform.c')
-rw-r--r--drivers/of/platform.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 3b64d0bf5bba..7c6771986c06 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -138,7 +138,7 @@ struct platform_device *of_device_alloc(struct device_node *np,
}
dev->dev.of_node = of_node_get(np);
- dev->dev.parent = parent;
+ dev->dev.parent = parent ? : &platform_bus;
if (bus_id)
dev_set_name(&dev->dev, "%s", bus_id);
@@ -291,7 +291,7 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
/* setup generic device info */
dev->dev.of_node = of_node_get(node);
- dev->dev.parent = parent;
+ dev->dev.parent = parent ? : &platform_bus;
dev->dev.platform_data = platform_data;
if (bus_id)
dev_set_name(&dev->dev, "%s", bus_id);