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authorMingming.Su <Mingming.Su@mediatek.com>2022-10-08 18:45:53 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2022-10-21 19:15:35 +0800
commitf1da27b7c4191f78ed81d3dabf64c769f896296c (patch)
tree4614165691c6e055bc8a879813262f86bcefa371
parent76a4e874593543a2dff91d249c95bac728df2774 (diff)
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>
-rw-r--r--drivers/char/hw_random/mtk-rng.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index 6c00ea008555..aa993753ab12 100644
--- 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 hwrng *rng, bool wait)
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_pm_ops = {
#endif /* CONFIG_PM */
static const struct of_device_id mtk_rng_match[] = {
+ { .compatible = "mediatek,mt7986-rng" },
{ .compatible = "mediatek,mt7623-rng" },
{},
};