openwrt/target/linux/mediatek/patches-6.1/405-v6.2-mt7986-trng-add-rng-support.patch
Daniel Golle 659f4a13dd mediatek: adapt files and patches for Linux 6.1
With Linux 6.1 many of our downstream patches and out-of-tree files
can be removed or at least replaced by backported upstream commits.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
[fix CMDLINE_OVERRIDE for arm64]
Signed-off-by: Bjørn Mork <bjorn@mork.no>
2023-07-07 14:01:39 +02:00

44 lines
1.3 KiB
Diff

From f1da27b7c4191f78ed81d3dabf64c769f896296c Mon Sep 17 00:00:00 2001
From: "Mingming.Su" <Mingming.Su@mediatek.com>
Date: Sat, 8 Oct 2022 18:45:53 +0200
Subject: [PATCH] hwrng: mtk - add mt7986 support
1. Add trng compatible name for MT7986
2. Fix mtk_rng_wait_ready() function
Signed-off-by: Mingming.Su <Mingming.Su@mediatek.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/char/hw_random/mtk-rng.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -22,7 +22,7 @@
#define RNG_AUTOSUSPEND_TIMEOUT 100
#define USEC_POLL 2
-#define TIMEOUT_POLL 20
+#define TIMEOUT_POLL 60
#define RNG_CTRL 0x00
#define RNG_EN BIT(0)
@@ -77,7 +77,7 @@ static bool mtk_rng_wait_ready(struct hw
readl_poll_timeout_atomic(priv->base + RNG_CTRL, ready,
ready & RNG_READY, USEC_POLL,
TIMEOUT_POLL);
- return !!ready;
+ return !!(ready & RNG_READY);
}
static int mtk_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
@@ -179,6 +179,7 @@ static const struct dev_pm_ops mtk_rng_p
#endif /* CONFIG_PM */
static const struct of_device_id mtk_rng_match[] = {
+ { .compatible = "mediatek,mt7986-rng" },
{ .compatible = "mediatek,mt7623-rng" },
{},
};