On 11/6/23 06:48, Rob Herring wrote:
On Wed, Nov 01, 2023 at 06:48:13PM +0800, Ziqi Chen wrote:
The Message Signaled Interrupts (MSI) has been introduced
to UFS driver since the MCQ be enabled.
Not really relevant when a driver supported MSI, but the when the h/w
did. Has UFS always supported MSI? It was added in some version of the
spec?
MSI support has been introduced in UFSHCI version 4.0 and I think that
the controller vendor can decide whether or not to implement MSI. Does
this mean that the patch needs to be improved?
Thanks,
Bart.
