linux-kernel - Re: [PATCH] char: xillybus: remove direct dependency on DT functions

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Message-ID: <5A551004.60603@gmail.com>
Date:   Tue, 09 Jan 2018 20:55:00 +0200
From:   Eli Billauer <eli.billauer@...il.com>
To:     Rob Herring <robh@...nel.org>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] char: xillybus: remove direct dependency on DT functions

Hello Rob,

I've had issues with my Gmail account recently, so I saw the patch only 
today. I was on my way to Ack it, when I got the mail announcing it has 
been applied.

So thanks, and sorry for not responding earlier.

Regards,
    Eli

On 05/01/18 00:45, Rob Herring wrote:
> Drivers generally should not need to depend directly on OF_ADDRESS or
> OF_IRQ. Convert xillybus to use the preferred platform_get_resource() and
> platform_get_irq() functions to remove this dependency.
>
> Cc: Eli Billauer<eli.billauer@...il.com>
> Cc: Greg Kroah-Hartman<gregkh@...uxfoundation.org>
> Signed-off-by: Rob Herring<robh@...nel.org>
> ---
>   drivers/char/xillybus/Kconfig       |  4 ++--
>   drivers/char/xillybus/xillybus_of.c | 12 ++++--------
>   2 files changed, 6 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/char/xillybus/Kconfig b/drivers/char/xillybus/Kconfig
> index b302684d86c1..a1f16df08d32 100644
> --- a/drivers/char/xillybus/Kconfig
> +++ b/drivers/char/xillybus/Kconfig
> @@ -4,7 +4,7 @@
>
>   config XILLYBUS
>   	tristate "Xillybus generic FPGA interface"
> -	depends on PCI || (OF_ADDRESS&&  OF_IRQ)
> +	depends on PCI || OF
>   	select CRC32
>   	help
>   	  Xillybus is a generic interface for peripherals designed on
> @@ -24,7 +24,7 @@ config XILLYBUS_PCIE
>
>   config XILLYBUS_OF
>   	tristate "Xillybus over Device Tree"
> -	depends on OF_ADDRESS&&  OF_IRQ&&  HAS_DMA
> +	depends on OF&&  HAS_DMA
>   	help
>   	  Set to M if you want Xillybus to find its resources from the
>   	  Open Firmware Flattened Device Tree. If the target is an embedded
> diff --git a/drivers/char/xillybus/xillybus_of.c b/drivers/char/xillybus/xillybus_of.c
> index 78a492f5acfb..4d6625ccb48f 100644
> --- a/drivers/char/xillybus/xillybus_of.c
> +++ b/drivers/char/xillybus/xillybus_of.c
> @@ -15,10 +15,6 @@
>   #include<linux/slab.h>
>   #include<linux/platform_device.h>
>   #include<linux/of.h>
> -#include<linux/of_irq.h>
> -#include<linux/of_address.h>
> -#include<linux/of_device.h>
> -#include<linux/of_platform.h>
>   #include<linux/err.h>
>   #include "xillybus.h"
>
> @@ -123,7 +119,7 @@ static int xilly_drv_probe(struct platform_device *op)
>   	struct xilly_endpoint *endpoint;
>   	int rc;
>   	int irq;
> -	struct resource res;
> +	struct resource *res;
>   	struct xilly_endpoint_hardware *ephw =&of_hw;
>
>   	if (of_property_read_bool(dev->of_node, "dma-coherent"))
> @@ -136,13 +132,13 @@ static int xilly_drv_probe(struct platform_device *op)
>
>   	dev_set_drvdata(dev, endpoint);
>
> -	rc = of_address_to_resource(dev->of_node, 0,&res);
> -	endpoint->registers = devm_ioremap_resource(dev,&res);
> +	res = platform_get_resource(op, IORESOURCE_MEM, 0);
> +	endpoint->registers = devm_ioremap_resource(dev, res);
>
>   	if (IS_ERR(endpoint->registers))
>   		return PTR_ERR(endpoint->registers);
>
> -	irq = irq_of_parse_and_map(dev->of_node, 0);
> +	irq = platform_get_irq(op, 0);
>
>   	rc = devm_request_irq(dev, irq, xillybus_isr, 0, xillyname, endpoint);
>
> --
> 2.14.1
>
>