linux-kernel - Re: [resend PATCH 1/3] ACPI / platform: provide default DMA mask

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Message-ID: <54465141.1080408@intel.com>
Date:	Tue, 21 Oct 2014 15:27:45 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Felipe Balbi <balbi@...com>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	linux-usb@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [resend PATCH 1/3] ACPI / platform: provide default DMA mask

On 24/09/14 16:49, Rafael J. Wysocki wrote:
> On Wednesday, September 24, 2014 11:00:37 AM Heikki Krogerus wrote:
>> Most devices are configured for 32-bit DMA addresses.
>> Setting the mask to 32-bit here removes the need for the
>> drivers to do it separately.
>>
>> Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
>> Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>
> 
> ACK

Hi

I need this for another driver.  Did this patch go anywhere?
Note Heikki is away at the moment.

Regards
Adrian

> 
>> ---
>>  drivers/acpi/acpi_platform.c | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
>> index 2bf9082..8d099e6 100644
>> --- a/drivers/acpi/acpi_platform.c
>> +++ b/drivers/acpi/acpi_platform.c
>> @@ -16,6 +16,7 @@
>>  #include <linux/err.h>
>>  #include <linux/kernel.h>
>>  #include <linux/module.h>
>> +#include <linux/dma-mapping.h>
>>  #include <linux/platform_device.h>
>>  
>>  #include "internal.h"
>> @@ -102,6 +103,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
>>  	pdevinfo.res = resources;
>>  	pdevinfo.num_res = count;
>>  	pdevinfo.acpi_node.companion = adev;
>> +	pdevinfo.dma_mask = DMA_BIT_MASK(32);
>>  	pdev = platform_device_register_full(&pdevinfo);
>>  	if (IS_ERR(pdev))
>>  		dev_err(&adev->dev, "platform device creation failed: %ld\n",
>>
> 

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