nvmem: add new config option (517f14d9) · Commits · 戴 / test

We want to add nvmem support for MTD. TI DaVinci is the first platform that will be using it, but only in non-DT mode. In order not to introduce any new interface to supporting of which we would have to commit - add a new config option that tells nvmem not to use the DT node of the parent device. This way we won't be creating nvmem devices corresponding with MTD partitions defined in device tree. By default MTD will set this new field to true. Once a set of bindings for MTD nvmem cells is agreed upon, we'll be able to remove this option. Signed-off-by:

Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by:

Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/nvmem/core.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -635,6 +635,7 @@ struct nvmem_device nvmem_register(const struct nvmem_config config)
		nvmem->type = config->type;
		nvmem->reg_read = config->reg_read;
		nvmem->reg_write = config->reg_write;
		if (!config->no_of_node)
		nvmem->dev.of_node = config->dev->of_node;

		if (config->id == -1 && config->name) {

include/linux/nvmem-provider.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,7 @@ enum nvmem_type {
		* @type: Type of the nvmem storage
		* @read_only: Device is read-only.
		* @root_only: Device is accessibly to root only.
		* @no_of_node: Device should not use the parent's of_node even if it's !NULL.
		* @reg_read: Callback to read data.
		* @reg_write: Callback to write data.
		* @size: Device size.
		@@ -62,6 +63,7 @@ struct nvmem_config {
		enum nvmem_type type;
		bool read_only;
		bool root_only;
		bool no_of_node;
		nvmem_reg_read_t reg_read;
		nvmem_reg_write_t reg_write;
		int size;

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