From 731aa3fae8137ebca83a01d20fbf3effb4798fc8 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Wed, 22 Jul 2020 11:06:58 +0100 Subject: 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 Signed-off-by: Srinivas Kandagatla Tested-by: Shawn Guo Link: https://lore.kernel.org/r/20200722100705.7772-8-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/core.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers/nvmem') 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") || -- cgit v1.2.3