[PATCH v2 1/3] mailbox/omap: Add ti, mbox-send-noirq quirk to fix AM33xx CPU Idle
From: tony@atomide.com (Tony Lindgren)
Date: 2015-08-05 10:28:46
Also in:
linux-devicetree, linux-omap, lkml
* Dave Gerlach [off-list ref] [150717 13:59]:
quoted hunk ↗ jump to hunk
--- a/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt +++ b/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt@@ -75,6 +75,14 @@ data that represent the following: Cell #3 (usr_id) - mailbox user id for identifying the interrupt line associated with generating a tx/rx fifo interrupt. +Optional Properties: +-------------------- +- ti,mbox-send-noirq: Quirk flag to allow the client user of this sub-mailbox + to send messages without triggering a Tx ready interrupt, + and to control the Tx ticker. Should be used only on + sub-mailboxes used to communicate with WkupM3 remote + processor on AM33xx/AM43xx SoCs. +
Hmm can't you do this just by setting a flag in the device driver based on the compatible string? Regards, Tony