| Message ID | 20231222045228.27826-3-jason-jh.lin@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add CMDQ secure driver for SVP | expand |
On Fri, Dec 22, 2023 at 12:52:21PM +0800, Jason-JH.Lin wrote: > Add mboxes to define a GCE loopping thread as a secure irq handler. > This property is only required if CMDQ secure driver is supported. What do drivers have to do with this? Either the mailbox channel exists or it does not. That said, I am not sure why this should be in DT in the first place, can't the driver for the mailbox controller reserve a channel for its own use? Thanks, Conor. > > Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> > --- > .../devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml > index e4da0a58c943..0c17e1be99c2 100644 > --- a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml > +++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml > @@ -56,6 +56,9 @@ properties: > include/dt-bindings/gce/<chip>-gce.h of each chips. > $ref: /schemas/types.yaml#/definitions/uint32-array > > + mboxes: > + maxItems: 1 > + > required: > - compatible > - "#mbox-cells" > -- > 2.18.0 >
Hi Conor, Thanks for the reviews. On Fri, 2023-12-22 at 15:07 +0000, Conor Dooley wrote: > On Fri, Dec 22, 2023 at 12:52:21PM +0800, Jason-JH.Lin wrote: > > Add mboxes to define a GCE loopping thread as a secure irq handler. > > This property is only required if CMDQ secure driver is supported. > > What do drivers have to do with this? Either the mailbox channel > exists > or it does not. That said, I am not sure why this should be in DT in > the > first place, can't the driver for the mailbox controller reserve a > channel for its own use? > > Thanks, > Conor. Since we implemented our mtk-cmdq-mailbox driver with mailbox frameworks, one mbox channel bounds to a GCE HW thread. So if we want to request a mbox channel for using a GCE HW thread for secure irq handler in mtk-cmdq-mailbox driver itself, I think we need to add this property to DT. Regards, Jason-JH.Lin [snip]
diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml index e4da0a58c943..0c17e1be99c2 100644 --- a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml +++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml @@ -56,6 +56,9 @@ properties: include/dt-bindings/gce/<chip>-gce.h of each chips. $ref: /schemas/types.yaml#/definitions/uint32-array + mboxes: + maxItems: 1 + required: - compatible - "#mbox-cells"
Add mboxes to define a GCE loopping thread as a secure irq handler. This property is only required if CMDQ secure driver is supported. Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> --- .../devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml | 3 +++ 1 file changed, 3 insertions(+)