From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
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>,
bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM
BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE...),
Eric Anholt <eric@anholt.net>,
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>,
linux-crypto@vger.kernel.org (open list:HARDWARE RANDOM NUMBER
GENERATOR CORE),
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
linux-rpi-kernel@lists.infradead.org (moderated list:BROADCOM
BCM2835 ARM ARCHITECTURE),
linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM
BCM2835 ARM ARCHITECTURE)
Subject: [PATCH 01/12] hwrng: bcm2835-rng: Obtain base register via resource
Date: Wed, 1 Nov 2017 18:03:57 -0700 [thread overview]
Message-ID: <20171102010408.27736-2-f.fainelli@gmail.com> (raw)
In-Reply-To: <20171102010408.27736-1-f.fainelli@gmail.com>
In preparation for consolidating bcm63xx-rng into bcm2835-rng, make sure
that we obtain the base register via platform_get_resource() since we
need to support the non-DT enabled MIPS-based BCM63xx DSL SoCs.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/char/hw_random/bcm2835-rng.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/char/hw_random/bcm2835-rng.c b/drivers/char/hw_random/bcm2835-rng.c
index 574211a49549..a818418a7e4c 100644
--- a/drivers/char/hw_random/bcm2835-rng.c
+++ b/drivers/char/hw_random/bcm2835-rng.c
@@ -81,21 +81,23 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
void (*rng_setup)(void __iomem *base);
const struct of_device_id *rng_id;
void __iomem *rng_base;
+ struct resource *r;
int err;
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
/* map peripheral */
- rng_base = of_iomap(np, 0);
- if (!rng_base) {
+ rng_base = devm_ioremap_resource(dev, r);
+ if (IS_ERR(rng_base)) {
dev_err(dev, "failed to remap rng regs");
- return -ENODEV;
+ return PTR_ERR(rng_base);
}
bcm2835_rng_ops.priv = (unsigned long)rng_base;
rng_id = of_match_node(bcm2835_rng_of_match, np);
- if (!rng_id) {
- iounmap(rng_base);
+ if (!rng_id)
return -EINVAL;
- }
+
/* Check for rng init function, execute it */
rng_setup = rng_id->data;
if (rng_setup)
@@ -107,10 +109,9 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
/* register driver */
err = hwrng_register(&bcm2835_rng_ops);
- if (err) {
+ if (err)
dev_err(dev, "hwrng registration failed\n");
- iounmap(rng_base);
- } else
+ else
dev_info(dev, "hwrng registered\n");
return err;
@@ -125,7 +126,6 @@ static int bcm2835_rng_remove(struct platform_device *pdev)
/* unregister driver */
hwrng_unregister(&bcm2835_rng_ops);
- iounmap(rng_base);
return 0;
}
--
2.9.3
next prev parent reply other threads:[~2017-11-02 1:04 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 ` Florian Fainelli [this message]
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
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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