From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Hunter Subject: Re: [PATCH 1/8] dt-bindings: tegra186-hsp: Add shared interrupts Date: Tue, 22 May 2018 16:15:05 +0100 Message-ID: <2bed23e6-19d5-66f8-774e-d613a91b1607@nvidia.com> References: <20180508114403.14499-1-mperttunen@nvidia.com> <20180508114403.14499-2-mperttunen@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180508114403.14499-2-mperttunen@nvidia.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Mikko Perttunen , robh+dt@kernel.org, mark.rutland@arm.com, jassisinghbrar@gmail.com, gregkh@linuxfoundation.org, thierry.reding@gmail.com Cc: araza@nvidia.com, devicetree@vger.kernel.org, linux-serial@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: linux-serial@vger.kernel.org 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