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Tue, 22 May 2018 11:15:33 -0400 Received: from hqemgate16.nvidia.com ([216.228.121.65]:6246 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751229AbeEVPPc (ORCPT ); Tue, 22 May 2018 11:15:32 -0400 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 22 May 2018 08:15:32 -0700 Subject: Re: [PATCH 1/8] dt-bindings: tegra186-hsp: Add shared interrupts To: Mikko Perttunen , , , , , CC: , , , , , References: <20180508114403.14499-1-mperttunen@nvidia.com> <20180508114403.14499-2-mperttunen@nvidia.com> From: Jon Hunter Message-ID: <2bed23e6-19d5-66f8-774e-d613a91b1607@nvidia.com> Date: Tue, 22 May 2018 16:15:05 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180508114403.14499-2-mperttunen@nvidia.com> X-Originating-IP: [172.20.13.39] X-ClientProxiedBy: HQMAIL103.nvidia.com (172.20.187.11) To HQMAIL101.nvidia.com (172.20.187.10) Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-serial-owner@vger.kernel.org X-Mailing-List: linux-serial@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On 08/05/18 12:43, Mikko Perttunen wrote: > Non-doorbell interrupts are routed through "shared interrupts". These > interrupts can be mapped to various internal interrupt lines. Add > interrupt properties for shared interrupts to the tegra186-hsp device > tree bindings. Reading the Tegra documentation, although the doorbells have dedicated interrupts, it appears that the doorbell interrupts can also be routed via these shared interrupts. > Signed-off-by: Mikko Perttunen > --- > Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt > index b99d25fc2f26..9edcdf82d719 100644 > --- a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt > +++ b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt > @@ -21,6 +21,8 @@ Required properties: > Contains a list of names for the interrupts described by the interrupt > property. May contain the following entries, in any order: > - "doorbell" > + - "sharedN", where 'N' is a number from zero up to the number of > + external interrupts supported by the HSP instance minus one. > Users of this binding MUST look up entries in the interrupt property > by name, using this interrupt-names property to do so. > - interrupts How is the mapping of shared-mailboxes interrupts to the actual 'sharedN' interrupt managed? Cheers Jon -- nvpublic