Re: [PATCH v10 05/18] OMAP2,3 DSS2 Change driver name to omap_display

Russell King - ARM Linux
2011-02-28T14:06:32Z

On Mon, Feb 28, 2011 at 02:38:32PM +0100, Cousson, Benoit wrote:
> On 2/28/2011 1:13 PM, Russell King - ARM Linux wrote:
>> On Mon, Feb 28, 2011 at 02:10:26PM +0200, Tomi Valkeinen wrote:
>>> On Mon, 2011-02-28 at 05:36 -0600, Cousson, Benoit wrote:
>>>> Cannot you use a device hierarchy then to do that?
>>>> omap_dss/core
>>>> omap_dss/dsi
>>>> omap_dss/venc
>>>>
>>>> This is moreover the way the HW is done.
>>>
>>> Hmm, how would that work? The devices are platform devices, and they
>>> have a unique global name, which is used to match the driver for the
>>> device.
>>
>> And not forgetting that '/' is not permitted in device or driver names.
>
> I was not really considering naming the device with a '/'. The idea is
> that the devices will not longer be flat platform devices but something
> like dss devices that will have have a omap_dss parent.
>
> I do not know if that makes sense to store some kind of hierarchy in the
> device model, but encoding the hierarchy in the name like it is proposed
> looks like a hack to me.

Try:

tree -d /sys/devices/pci0000\:00

on your PC, taking special note of how pci-to-pci bridges are handled.