Il 20/12/23 11:39, William-tw Lin ha scritto:
Retrieval of soc info is needed. This patch includes the following:
1. Register socinfo device in mtk-efuse.c
nvmem: mtk-efuse: Register MediaTek socinfo driver from efuse
The socinfo driver reads chip information from eFuses and does not need
any devicetree node. Register it from mtk-efuse.
While at it, also add the name for this driver's nvmem_config.
^^^ that's a proper commit title and description :-)
Signed-off-by: William-tw Lin <william-tw.lin@xxxxxxxxxxxx>
---
drivers/nvmem/mtk-efuse.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c
index 84f05b40a411..3914e039e288 100644
--- a/drivers/nvmem/mtk-efuse.c
+++ b/drivers/nvmem/mtk-efuse.c
@@ -68,6 +68,7 @@ static int mtk_efuse_probe(struct platform_device *pdev)
struct nvmem_config econfig = {};
struct mtk_efuse_priv *priv;
const struct mtk_efuse_pdata *pdata;
+ struct platform_device *socinfo;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -85,11 +86,19 @@ static int mtk_efuse_probe(struct platform_device *pdev)
econfig.size = resource_size(res);
econfig.priv = priv;
econfig.dev = dev;
+ econfig.name = "mtk-efuse";
if (pdata->uses_post_processing)
econfig.fixup_dt_cell_info = &mtk_efuse_fixup_dt_cell_info;
nvmem = devm_nvmem_register(dev, &econfig);
+ if (IS_ERR(nvmem))
+ return PTR_ERR(nvmem);
- return PTR_ERR_OR_ZERO(nvmem);
+ socinfo = platform_device_register_data(&pdev->dev, "mtk-socinfo",
+ PLATFORM_DEVID_AUTO, NULL, 0);
+ if (IS_ERR(socinfo))
+ dev_info(dev, "MediaTek SoC Information will be unavailable\n");
+
if (IS_ERR(socinfo))
dev_info(dev, "MediaTek SoC Information will be unavailable\n");
platform_set_drvdata(pdev, socinfo);
return 0;
+ return 0;
}
static const struct mtk_efuse_pdata mtk_mt8186_efuse_pdata = {
static void mtk_efuse_remove(struct platform_device *pdev)
{
struct platform_device *socinfo = platform_get_drvdata(pdev);
if (!IS_ERR_OR_NULL(socinfo))
platform_device_unregister(socinfo);
}
static struct platform_driver mtk_efuse_driver = {
.probe = mtk_efuse_probe,
.remove_new = mtk_efuse_remove, <---- add this
.driver = {
.name = "mediatek,efuse",
.of_match_table = mtk_efuse_of_match,
}
};
After those additions, it's good for me.
Thanks,
Angelo
