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-rw-r--r--target/linux/mediatek/patches-4.14/0197-hwrng-mediatek-Setup-default-RNG-quality.patch30
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.14/0197-hwrng-mediatek-Setup-default-RNG-quality.patch b/target/linux/mediatek/patches-4.14/0197-hwrng-mediatek-Setup-default-RNG-quality.patch
new file mode 100644
index 0000000000..a766169cc2
--- /dev/null
+++ b/target/linux/mediatek/patches-4.14/0197-hwrng-mediatek-Setup-default-RNG-quality.patch
@@ -0,0 +1,30 @@
+From cd4a7d700a148f89d599ebe53fd97dc64193683a Mon Sep 17 00:00:00 2001
+From: Sean Wang <sean.wang@mediatek.com>
+Date: Wed, 10 Jan 2018 12:02:46 +0800
+Subject: [PATCH 197/224] hwrng: mediatek - Setup default RNG quality
+
+When hw_random device's quality is non-zero, it will automatically fill
+the kernel's entropy pool at boot. For the purpose, one conservative
+quality value is being picked up as the default value.
+
+Signed-off-by: Sean Wang <sean.wang@mediatek.com>
+Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
+---
+ drivers/char/hw_random/mtk-rng.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
+index 8da7bcf54105..7f99cd52b40e 100644
+--- a/drivers/char/hw_random/mtk-rng.c
++++ b/drivers/char/hw_random/mtk-rng.c
+@@ -135,6 +135,7 @@ static int mtk_rng_probe(struct platform_device *pdev)
+ #endif
+ priv->rng.read = mtk_rng_read;
+ priv->rng.priv = (unsigned long)&pdev->dev;
++ priv->rng.quality = 900;
+
+ priv->clk = devm_clk_get(&pdev->dev, "rng");
+ if (IS_ERR(priv->clk)) {
+--
+2.11.0
+