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authorStephen Warren <swarren@nvidia.com>2013-12-09 15:06:47 -0700
committerLee Jones <lee.jones@linaro.org>2014-01-21 08:28:06 +0000
commita7c42b25455d589ae6e13fc636a6d83632c3d39f (patch)
tree75e656776a743645d47aa61cd34f87eec45d7154 /drivers/mfd
parent01e73c89cf03c020e586dc9e30d52a6e098853f6 (diff)
downloadop-kernel-dev-a7c42b25455d589ae6e13fc636a6d83632c3d39f.zip
op-kernel-dev-a7c42b25455d589ae6e13fc636a6d83632c3d39f.tar.gz
mfd: Always assign of_node in mfd_add_device()
mfd_add_device() assigns .of_node in the device objects it creates only if the mfd_cell for the device has the .of_compatible field set and the DT node for the top-level MFD device contains a child whose compatible property matches the cell's .of_compatible field. This leaves .of_node unset in many cases. When this happens, entries in the DT /aliases property which refer to the top-level MFD DT node will never match the MFD child devices, hence causing the requested alias not to be honored. Solve this by setting each MFD child device's .of_node equal to the top- level MFD device's .of_node field in the cases where it would otherwise remain unset. The first use-case for this will be aliases for the TPS6586x's RTC device. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/mfd-core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 2676492..32e8d47 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -117,6 +117,8 @@ static int mfd_add_device(struct device *parent, int id,
}
}
}
+ if (!pdev->dev.of_node)
+ pdev->dev.of_node = parent->of_node;
if (cell->pdata_size) {
ret = platform_device_add_data(pdev,
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