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| author | William-tw Lin <william-tw.lin@mediatek.com> | 2024-02-24 11:45:07 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-07 20:21:53 +0000 |
| commit | 998f0633773b3432829fe45d2cd2ffb842f3c78e (patch) | |
| tree | 1a77c97ed6b984252920fc5ab738378bd6ea3276 | |
| parent | 508ecc78b6c983a7921bee2f4bd22682f9f0396e (diff) | |
| download | lwn-998f0633773b3432829fe45d2cd2ffb842f3c78e.tar.gz lwn-998f0633773b3432829fe45d2cd2ffb842f3c78e.zip | |
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.
Signed-off-by: William-tw Lin <william-tw.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20240224114516.86365-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/nvmem/mtk-efuse.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c index 84f05b40a411..f5bebcecf9bd 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 +86,20 @@ 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"); + + platform_set_drvdata(pdev, socinfo); + return 0; } static const struct mtk_efuse_pdata mtk_mt8186_efuse_pdata = { @@ -108,8 +118,17 @@ static const struct of_device_id mtk_efuse_of_match[] = { }; MODULE_DEVICE_TABLE(of, mtk_efuse_of_match); +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, .driver = { .name = "mediatek,efuse", .of_match_table = mtk_efuse_of_match, |