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nvmem: add new config option 

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>
This commit is contained in:
Bartosz Golaszewski 2018-11-30 11:53:25 +00:00 committed by Greg Kroah-Hartman
parent a8b44d5d2e
commit 517f14d9cf
2 changed files with 4 additions and 1 deletions
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3
drivers/nvmem/core.c
View File

@ -635,7 +635,8 @@ 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;
nvmem->dev.of_node = config->dev->of_node;
if (!config->no_of_node)
nvmem->dev.of_node = config->dev->of_node;
if (config->id == -1 && config->name) {
dev_set_name(&nvmem->dev, "%s", config->name);

2
include/linux/nvmem-provider.h
View File

@ -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;