On 11/7/2023 1:56 AM, Bart Van Assche wrote:
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.
Hi Rob, in my previous patch " dt-bindings: ufs: qcom: Add msi-parent
for UFS MCQ", Manivannan Sadhasivam also think instead of
qcom,ufs.yaml, this should be part of ufs-common.yaml.
please let me know if there is any others I need to improve for this
patch. Thanks a lot.
Best Regards,
Ziqi
