Re: [PATCH v2 1/3] mailbox/omap: Add ti,mbox-send-noirq quirk to fix AM33xx CPU Idle

From: Tony Lindgren
Date: Wed Aug 05 2015 - 06:28:48 EST


* Dave Gerlach <d-gerlach@xxxxxx> [150717 13:59]:
> --- 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
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