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| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2020-07-22 11:06:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-29 17:12:08 +0200 |
| commit | 731aa3fae8137ebca83a01d20fbf3effb4798fc8 (patch) | |
| tree | daa1267835c8dc0f1014b28646e0dacb46ddf72f /drivers/nvmem/core.c | |
| parent | 5037d368b2c2c90e9432d477e5562dce1c33d5c9 (diff) | |
| download | lwn-731aa3fae8137ebca83a01d20fbf3effb4798fc8.tar.gz lwn-731aa3fae8137ebca83a01d20fbf3effb4798fc8.zip | |
nvmem: core: add support to auto devid
For nvmem providers which have multiple instances, it is required
to suffix the provider name with proper id, so that they do not
confict for the same name. Currently the core does not handle
this case properly eventhough core already has logic to generate the id.
This patch add new devid type NVMEM_DEVID_AUTO for providers to be
able to allow core to assign id and append it to provier name.
Reported-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20200722100705.7772-8-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem/core.c')
| -rw-r--r-- | drivers/nvmem/core.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index d6bacc878500..6cd3edb2eaf6 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -635,12 +635,18 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config) if (!config->no_of_node) nvmem->dev.of_node = config->dev->of_node; - if (config->id == -1 && config->name) { + switch (config->id) { + case NVMEM_DEVID_NONE: dev_set_name(&nvmem->dev, "%s", config->name); - } else { + break; + case NVMEM_DEVID_AUTO: + dev_set_name(&nvmem->dev, "%s%d", config->name, nvmem->id); + break; + default: dev_set_name(&nvmem->dev, "%s%d", config->name ? : "nvmem", config->name ? config->id : nvmem->id); + break; } nvmem->read_only = device_property_present(config->dev, "read-only") || |