On 03/22/2016 03:33 PM, Moritz Fischer wrote:
Hi all,
probably I'm doing this all wrong. I'm playing around with a bunch of accelerators
and I need to share buffers between them. I have my heaps implemented as a
platform device and from what I understand I'll need a reference to the
struct ion_device in each of them.
I couldn't find a way to get to that via devicetree, though. I'll admit that hacking
up miscdevice is quite hacky, maybe I should add a foo_get_ion_device() to my
heap implementing platform device?
If someone can explain me how to correctly do that with what we currently have,
even better.
Cheers,
Moritz
Moritz Fischer (2):
misc: Add of_get_misc get a reference from devicetree
staging: android: ion: Add of_ion_device_get function
drivers/char/misc.c | 38 ++++++++++++++++++++++++++++++++++++++
drivers/staging/android/ion/ion.c | 10 ++++++++++
include/linux/miscdevice.h | 3 +++
3 files changed, 51 insertions(+)
In the past what drivers have done is a foo_ion_client_create which has the reference
to the ion_device created from ion_device_create. Drivers then call the
foo_ion_client_create function.
Can you elaborate more on your sharing and allocation flow? This might suggest
another idea.
Thanks,
Laura
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