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

From: Adrian Hunter
Date: Wed Oct 22 2014 - 03:35:13 EST


On 21/10/14 16:13, Adrian Hunter wrote:
> On 21/10/14 16:08, Rafael J. Wysocki wrote:
>> On Tuesday, October 21, 2014 03:27:45 PM Adrian Hunter wrote:
>>> 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@xxxxxxxxxxxxxxx>
>>>>> Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
>>>>
>>>> ACK
>>>
>>> Hi
>>>
>>> I need this for another driver. Did this patch go anywhere?
>>
>> It's not in 3.18-rc1 as far as I can say.
>>
>>> Note Heikki is away at the moment.
>>
>> That's OK. I guess I can queue up this one for you.
>>
>> When do you need this to get into the Linus' tree?
>
> My patches are aiming for 3.19

Actually it would be easier for me if Heikki's patch is already in
3.18, but all I need to know is when it will hit?

>
>>
>>
>>>>> ---
>>>>> 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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