Ahh, yes I am.. I apologize, still too much display and gfx accel and
other stuff I depend on isn't in kernel.org tree yet, so I'm just
using ubuntu 2.6.38 tree, ti-omap4 branch, (since this is the most
current kernel that also has everything else I need). But I guess it
is a bit out of date already. Maybe there is a way I could pull all
the patches just from drivers/gpu/drm directory to stay a bit more
current?
But anyways, if everyone is ok with the idea to change the bus-id this
way, then I could resubmit a patch with the same change in
drm_platform_set_busid()
BR,
-R
On Wed, Mar 30, 2011 at 7:57 AM, Ilija Hadzic
<ihadzic@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Are you by any chance working off a stale branch in git ?
>
> Apparently the lines you are modifying now live in drm_platform_set_busid
> function in drm_platform.c
>
> -- Ilija
>
> On Tue, 29 Mar 2011, Rob Clark wrote:
>
>> From: Rob Clark <robdclark@xxxxxxxxx>
>>
>> Include the minor device id in the bus-id to give userspace a way to open
>> the correct "cardN" when there are multiple device instances.
>> ---
>> It may seem a bit strange to have multiple platform device instances, but
>> we have a use-case for this. And this relatively simple patch does the
>> trick.
>>
>> drivers/gpu/drm/drm_ioctl.c | 5 +++--
>> 1 files changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
>> index 47db4df..075024b 100644
>> --- a/drivers/gpu/drm/drm_ioctl.c
>> +++ b/drivers/gpu/drm/drm_ioctl.c
>> @@ -165,14 +165,15 @@ static int drm_set_busid(struct drm_device *dev,
>> struct drm_file *file_priv)
>> drm_unset_busid(dev, master);
>>
>> if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) {
>> - master->unique_len = 10 + strlen(dev->platformdev->name);
>> + master->unique_len = 13 + strlen(dev->platformdev->name);
>> + master->unique_size = master->unique_len;
>> master->unique = kmalloc(master->unique_len + 1,
>> GFP_KERNEL);
>>
>> if (master->unique == NULL)
>> return -ENOMEM;
>>
>> len = snprintf(master->unique, master->unique_len,
>> - "platform:%s", dev->platformdev->name);
>> + "platform:%s:%02d", dev->platformdev->name,
>> dev->primary->index);
>>
>> if (len > master->unique_len) {
>> DRM_ERROR("Unique buffer overflowed\n");
>> --
>> 1.7.1
>>
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