Hi Álvaro, On Wed, 2021-02-24 at 09:22 +0100, Álvaro Fernández Rojas wrote: [...] > @@ -115,6 +121,8 @@ static void bcm2835_rng_cleanup(struct hwrng *rng) > /* disable rng hardware */ > rng_writel(priv, 0, RNG_CTRL); > > + reset_control_rearm(priv->reset); > + > if (!IS_ERR(priv->clk)) > clk_disable_unprepare(priv->clk); > } > @@ -159,6 +167,10 @@ static int bcm2835_rng_probe(struct platform_device *pdev) > if (PTR_ERR(priv->clk) == -EPROBE_DEFER) > return -EPROBE_DEFER; > > + priv->reset = devm_reset_control_get_optional_exclusive(dev, NULL); > + if (IS_ERR(priv->reset)) > + return PTR_ERR(priv->reset); > + > priv->rng.name = pdev->name; > priv->rng.init = bcm2835_rng_init; > priv->rng.read = bcm2835_rng_read; That doesn't seem right. reset_control_rearm() doesn't do anything if the reset control is exclusive. Either the reset control should be requested as shared, or the _rearm should be removed. regards Philipp
