From: Florian Fainelli <f.fainelli@gmail.com>
To: Eric Anholt <eric@anholt.net>, linux-kernel@vger.kernel.org
Cc: Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>, Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
"maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..."
<bcm-kernel-feedback-list@broadcom.com>,
Stefan Wahren <stefan.wahren@i2se.com>,
PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>,
Russell King <rmk+kernel@armlinux.org.uk>,
Krzysztof Kozlowski <krzk@kernel.org>,
Harald Freudenberger <freude@linux.vnet.ibm.com>,
Sean Wang <sean.wang@mediatek.com>,
Martin Kaiser <martin@kaiser.cx>,
Steffen Trumtrar <s.trumtrar@pengutronix.de>,
"open list:HARDWARE RANDOM NUMBER GENERATOR CORE"
<linux-crypto@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
"moderated list:BROADCOM BCM2835 ARM ARCHITECTURE"
<linux-rpi-kernel@lists.infradead.org>,
"moderated list:BRO ADCOM BCM2835 ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 12/12] hwrng: bcm63xx-rng: Remove since bcm2835-rng takes over
Date: Fri, 3 Nov 2017 14:58:32 -0700 [thread overview]
Message-ID: <cd6ab76c-1e33-6a3b-efce-e661c647c4db@gmail.com> (raw)
In-Reply-To: <877ev7ru97.fsf@anholt.net>
On 11/03/2017 01:18 PM, Eric Anholt wrote:
> Florian Fainelli <f.fainelli@gmail.com> 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@gmail.com>
>> ---
>> 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?
The read method already has something similar in that it busy loops
until it gets some random words available, which is why I did not port
it over.
--
Florian
next prev parent reply other threads:[~2017-11-03 21:58 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-02 1:03 [PATCH 00/12] bcm63xx-rng conversion to bcm2835-rng Florian Fainelli
2017-11-02 1:03 ` [PATCH 01/12] hwrng: bcm2835-rng: Obtain base register via resource Florian Fainelli
2017-11-02 1:03 ` [PATCH 02/12] hwrng: bcm2835-rng: Define a driver private context Florian Fainelli
2017-11-02 1:03 ` [PATCH 03/12] hwrng: bcm2835-rng: Move enabling to hwrng::init Florian Fainelli
2017-11-02 1:04 ` [PATCH 04/12] hwrng: bcm2835-rng: Implementation cleanup callback Florian Fainelli
2017-11-02 1:04 ` [PATCH 05/12] hwrng: bcm2835-rng: Use device managed helpers Florian Fainelli
2017-11-02 1:04 ` [PATCH 06/12] hwrng: bcm2835-rng: Rework interrupt masking Florian Fainelli
2017-11-02 1:04 ` [PATCH 07/12] hwrng: bcm2835-rng: Manage an optional clock Florian Fainelli
2017-11-04 13:50 ` Stefan Wahren
2017-11-04 17:59 ` Florian Fainelli
2017-11-04 18:22 ` Stefan Wahren
2017-11-04 19:37 ` Andrew Lunn
2017-11-04 20:08 ` Russell King - ARM Linux
2017-11-04 20:17 ` Andrew Lunn
2017-11-02 1:04 ` [PATCH 08/12] hwrng: bcm2835-rng: Abstract I/O accessors Florian Fainelli
2017-11-03 20:19 ` Eric Anholt
2017-11-03 22:04 ` Florian Fainelli
2017-11-02 1:04 ` [PATCH 09/12] hwrng: bcm2835-rng: Add Broadcom MIPS " Florian Fainelli
2017-11-02 1:04 ` [PATCH 10/12] dt-bindings: rng: Incorporate brcm,bcm6368.txt binding Florian Fainelli
2017-11-06 21:38 ` Rob Herring
2017-11-02 1:04 ` [PATCH 11/12] hwrng: bcm2835-rng: Enable BCM2835 RNG to work on BCM63xx platforms Florian Fainelli
2017-11-04 18:27 ` Stefan Wahren
2017-11-06 20:16 ` Florian Fainelli
2017-11-07 6:45 ` Stefan Wahren
2017-11-07 23:27 ` Stefan Wahren
2017-11-02 1:04 ` [PATCH 12/12] hwrng: bcm63xx-rng: Remove since bcm2835-rng takes over Florian Fainelli
2017-11-03 20:18 ` Eric Anholt
2017-11-03 21:58 ` Florian Fainelli [this message]
2017-11-02 19:00 ` [PATCH 00/12] bcm63xx-rng conversion to bcm2835-rng Stefan Wahren
2017-11-02 19:01 ` Stefan Wahren
2017-11-02 19:06 ` Florian Fainelli
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