[PATCH 1/3] mfd: allow mfd_cell association with device tree node
From: Daniel Drake <hidden>
Date: 2011-09-21 12:01:48
Subsystem:
multifunction devices (mfd), the rest · Maintainers:
Lee Jones, Linus Torvalds
This allows a mfd_cell to be linked with a device tree node, which then allows child drivers to have easy access to that handle. Signed-off-by: Daniel Drake <redacted> --- drivers/mfd/mfd-core.c | 1 + include/linux/mfd/core.h | 4 ++++ 2 files changed, 5 insertions(+), 0 deletions(-) I think this is what is being suggested at http://lists.ozlabs.org/pipermail/devicetree-discuss/2011-September/008235.html
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 0902523..7d22dcd 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c@@ -87,6 +87,7 @@ static int mfd_add_device(struct device *parent, int id, goto fail_device; pdev->dev.parent = parent; + pdev->dev.of_node = cell->of_node; if (cell->pdata_size) { ret = platform_device_add_data(pdev,
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index 4e76163..9b836f9 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h@@ -15,6 +15,7 @@ #define MFD_CORE_H #include <linux/platform_device.h> +#include <linux/of.h> /* * This struct describes the MFD part ("cell").
@@ -37,6 +38,9 @@ struct mfd_cell { void *platform_data; size_t pdata_size; + /* association with device tree node (optional) */ + struct device_node *of_node; + /* * These resources can be specified relative to the parent device. * For accessing hardware you should use resources from the platform dev
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1.7.6.2