nvmem: rockchip-efuse: add optional property to get efuse size

[firefly-linux-kernel-4.4.55.git] / drivers / nvmem / rockchip-efuse.c

diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c
index c117d071d96772ac6838184867dd4f6b8749fff2..294816c2430aff3a4daa4120f1c265005eaa3568 100644 (file)
--- a/drivers/nvmem/rockchip-efuse.c
+++ b/drivers/nvmem/rockchip-efuse.c
@@ -361,7 +361,12 @@ static int __init rockchip_efuse_probe(struct platform_device *pdev)
                return PTR_ERR(efuse->clk);
 
        efuse->dev = &pdev->dev;
-       econfig.size = resource_size(res);
+       if (of_property_read_u32_index(dev->of_node,
+                                      "rockchip,efuse-size",
+                                      0,
+                                      &econfig.size))
+               econfig.size = resource_size(res);
+
        econfig.reg_read = match->data;
        econfig.priv = efuse;
        econfig.dev = efuse->dev;