[PATCH 4/5] nvmem: add nvmem_device_get_device()

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We'll want to add a device parameter to the imx_ocotp0 device in the
next step, but the device is private to the nvmem core. Add a getter
function for it.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
 drivers/nvmem/core.c           | 6 ++++++
 include/linux/nvmem-provider.h | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 67bb1d7993..ad145a4242 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -858,3 +858,9 @@ int nvmem_cell_read_variable_le_u32(struct device *dev, const char *cell_id,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(nvmem_cell_read_variable_le_u32);
+
+struct device *nvmem_device_get_device(struct nvmem_device *nvmem)
+{
+	return &nvmem->dev;
+}
+EXPORT_SYMBOL_GPL(nvmem_device_get_device);
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index 3c30e18409..b3b4372d30 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h
@@ -48,6 +48,7 @@ struct nvmem_device *nvmem_regmap_register(struct regmap *regmap, const char *na
 struct nvmem_device *nvmem_regmap_register_with_pp(struct regmap *regmap,
 		const char *name, nvmem_cell_post_process_t cell_post_process);
 struct nvmem_device *nvmem_partition_register(struct cdev *cdev);
+struct device *nvmem_device_get_device(struct nvmem_device *nvmem);
 
 #else
 
@@ -73,5 +74,9 @@ static inline struct nvmem_device *nvmem_partition_register(struct cdev *cdev)
 	return ERR_PTR(-ENOSYS);
 }
 
+static struct device *nvmem_device_get_device(struct nvmem_device *nvmem)
+{
+	return ERR_PTR(-ENOSYS);
+}
 #endif /* CONFIG_NVMEM */
 #endif  /* ifndef _LINUX_NVMEM_PROVIDER_H */
-- 
2.39.2





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