Commit f1da27b7 authored by Mingming.Su's avatar Mingming.Su Committed by Herbert Xu
Browse files

hwrng: mtk - add mt7986 support 



1. Add trng compatible name for MT7986
2. Fix mtk_rng_wait_ready() function

Signed-off-by: default avatarMingming.Su <Mingming.Su@mediatek.com>
Signed-off-by: default avatarFrank Wunderlich <frank-w@public-files.de>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 76a4e874

drivers/char/hw_random/mtk-rng.c

+3 −2
Original line number Diff line number Diff line
@@ -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" },

	{},

};