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Groups > linux.kernel > #1200915
| From | Suman Anna <s-anna@ti.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 1/3] mailbox/omap: Add ti,mbox-send-noirq quirk to fix AM33xx CPU Idle |
| Date | 2015-08-05 17:40 +0200 |
| Message-ID | <pU8Xp-5uJ-31@gated-at.bofh.it> (permalink) |
| References | <pNkTD-8cE-3@gated-at.bofh.it> <pNkTD-8cE-1@gated-at.bofh.it> <pU47o-6U1-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hi Tony, On 08/05/2015 05:28 AM, Tony Lindgren wrote: > * Dave Gerlach <d-gerlach@ti.com> [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? We can't because there can be other users like PRUSS which will use a sub-mailbox in a regular fashion. The compatible serves the IP and there can be multiple sub-mailboxes underneath it, and this quirk is needed only on the one that's used by the WkupM3. Jassi, Do you have any comments on this? regards Suman -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH v2 1/3] mailbox/omap: Add ti,mbox-send-noirq quirk to fix AM33xx CPU Idle Tony Lindgren <tony@atomide.com> - 2015-08-05 12:30 +0200
Re: [PATCH v2 1/3] mailbox/omap: Add ti,mbox-send-noirq quirk to fix AM33xx CPU Idle Suman Anna <s-anna@ti.com> - 2015-08-05 17:40 +0200
Re: [PATCH v2 1/3] mailbox/omap: Add ti,mbox-send-noirq quirk to fix AM33xx CPU Idle Tony Lindgren <tony@atomide.com> - 2015-08-06 08:30 +0200
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