nvmem: drop nvmem_layout_get_match_data()

Thanks for layouts refactoring we now have "struct device" associated
with layout. Also its OF pointer points directly to the "nvmem-layout"
DT node.

All it takes to get match data is a generic of_device_get_match_data().
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20231219120104.3422-2-zajec5@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/nvmem/core.c

@@ -876,19 +876,6 @@ void nvmem_layout_unregister(struct nvmem_layout *layout)
 }
 EXPORT_SYMBOL_GPL(nvmem_layout_unregister);
 
-const void *nvmem_layout_get_match_data(struct nvmem_device *nvmem,
-					struct nvmem_layout *layout)
-{
-	struct device_node __maybe_unused *layout_np;
-	const struct of_device_id *match;
-
-	layout_np = of_nvmem_layout_get_container(nvmem);
-	match = of_match_node(layout->dev.driver->of_match_table, layout_np);
-
-	return match ? match->data : NULL;
-}
-EXPORT_SYMBOL_GPL(nvmem_layout_get_match_data);
-
 /**
  * nvmem_register() - Register a nvmem device for given nvmem_config.
  * Also creates a binary entry in /sys/bus/nvmem/devices/dev-name/nvmem

include/linux/nvmem-provider.h

@@ -205,9 +205,6 @@ void nvmem_layout_driver_unregister(struct nvmem_layout_driver *drv);
 	module_driver(__nvmem_layout_driver, nvmem_layout_driver_register, \
 		      nvmem_layout_driver_unregister)
 
-const void *nvmem_layout_get_match_data(struct nvmem_device *nvmem,
-					struct nvmem_layout *layout);
-
 #else
 
 static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c)
@@ -238,13 +235,6 @@ static inline int nvmem_layout_register(struct nvmem_layout *layout)
 
 static inline void nvmem_layout_unregister(struct nvmem_layout *layout) {}
 
-static inline const void *
-nvmem_layout_get_match_data(struct nvmem_device *nvmem,
-			    struct nvmem_layout *layout)
-{
-	return NULL;
-}
-
 #endif /* CONFIG_NVMEM */
 
 #if IS_ENABLED(CONFIG_NVMEM) && IS_ENABLED(CONFIG_OF)