From: Eric Anholt <eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
Subject: Re: [PATCH 12/12] hwrng: bcm63xx-rng: Remove since bcm2835-rng takes over
Date: Fri, 03 Nov 2017 13:18:28 -0700
Message-ID: <877ev7ru97.fsf@anholt.net>
References: <20171102010408.27736-1-f.fainelli@gmail.com> <20171102010408.27736-13-f.fainelli@gmail.com>
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Cc: Florian Fainelli <f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
        Matt Mackall <mpm-VDJrAJ4Gl5ZBDgjK7y7TUQ@public.gmane.org>,
        Herbert Xu <herbert-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>,
        Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
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        Ray Jui <rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
        Scott Branden <sbranden-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
        "maintainer\:BROADCOM BCM281XX\/BCM11XXX\/BCM216XX ARM ARCHITE..."
        <bcm-kernel-feedback-list-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
        Stefan Wahren <stefan.wahren-eS4NqCHxEME@public.gmane.org>,
        PrasannaKumar Muralidharan <prasannatsmkumar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
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        "open list\:HARDWARE RANDOM NUMBER GENERATOR CORE"
To: Florian Fainelli <f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
        linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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Florian Fainelli <f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> bcm2835-rng is now capable of supporting the BCM63xx hardware, so remove
> the driver which duplicates the same functionality.
>
> Signed-off-by: Florian Fainelli <f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  drivers/char/hw_random/Kconfig       |  13 ---
>  drivers/char/hw_random/Makefile      |   1 -
>  drivers/char/hw_random/bcm63xx-rng.c | 154 -----------------------------------
>  3 files changed, 168 deletions(-)
>  delete mode 100644 drivers/char/hw_random/bcm63xx-rng.c
>

> diff --git a/drivers/char/hw_random/bcm63xx-rng.c b/drivers/char/hw_random/bcm63xx-rng.c
> deleted file mode 100644
> index 5132c9cde50d..000000000000
> --- a/drivers/char/hw_random/bcm63xx-rng.c
> +++ /dev/null

> -static int bcm63xx_rng_data_present(struct hwrng *rng, int wait)
> -{
> -	struct bcm63xx_rng_priv *priv = to_rng_priv(rng);
> -
> -	return __raw_readl(priv->regs + RNG_STAT) & RNG_AVAIL_MASK;
> -}

It looks like this method isn't in the 2835 implementation.  Should it
get ported over?

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