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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>
This commit is contained in:
Mingming.Su 2022-10-08 18:45:53 +02:00 committed by Herbert Xu
parent 76a4e87459
commit f1da27b7c4
1 changed files with 3 additions and 2 deletions
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5
drivers/char/hw_random/mtk-rng.c
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@ -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" },
{},
};