* [PATCH V3 1/5] dt-bindings: mailbox: allow mbox-cells to be equal to 0
[not found] <1529676720-7533-1-git-send-email-aisheng.dong@nxp.com>
@ 2018-06-22 14:11 ` Dong Aisheng
2018-06-25 17:17 ` Rob Herring
0 siblings, 1 reply; 2+ messages in thread
From: Dong Aisheng @ 2018-06-22 14:11 UTC (permalink / raw)
To: linux-arm-kernel
Cc: dongas86, kernel, shawnguo, fabio.estevam, linux-imx,
Dong Aisheng, Rob Herring, Mark Rutland, Sudeep Holla,
devicetree, linux-kernel
Mailbox devices may have only one channel which means the mbox-cells
at least 1 does not make sense for this type devices. Let's remove
that limitation to allow the mbox-cells to be equal to 0.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
---
ChangeLog:
* New patch introduced in v3 series
* Actually there're already users in kernel with mbox-cells set to 0.
See:
arch/arm/boot/dts/bcm283x.dtsi:145: #mbox-cells = <0>;
---
Documentation/devicetree/bindings/mailbox/mailbox.txt | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/mailbox/mailbox.txt b/Documentation/devicetree/bindings/mailbox/mailbox.txt
index af8ecee..c2fcd05 100644
--- a/Documentation/devicetree/bindings/mailbox/mailbox.txt
+++ b/Documentation/devicetree/bindings/mailbox/mailbox.txt
@@ -6,8 +6,7 @@ assign appropriate mailbox channel to client drivers.
* Mailbox Controller
Required property:
-- #mbox-cells: Must be at least 1. Number of cells in a mailbox
- specifier.
+- #mbox-cells: Number of cells in a mailbox specifier.
Example:
mailbox: mailbox {
--
2.7.4
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH V3 1/5] dt-bindings: mailbox: allow mbox-cells to be equal to 0
2018-06-22 14:11 ` [PATCH V3 1/5] dt-bindings: mailbox: allow mbox-cells to be equal to 0 Dong Aisheng
@ 2018-06-25 17:17 ` Rob Herring
0 siblings, 0 replies; 2+ messages in thread
From: Rob Herring @ 2018-06-25 17:17 UTC (permalink / raw)
To: Dong Aisheng
Cc: linux-arm-kernel, dongas86, kernel, shawnguo, fabio.estevam,
linux-imx, Mark Rutland, Sudeep Holla, devicetree, linux-kernel
On Fri, Jun 22, 2018 at 10:11:56PM +0800, Dong Aisheng wrote:
> Mailbox devices may have only one channel which means the mbox-cells
> at least 1 does not make sense for this type devices. Let's remove
> that limitation to allow the mbox-cells to be equal to 0.
>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
> ---
> ChangeLog:
> * New patch introduced in v3 series
> * Actually there're already users in kernel with mbox-cells set to 0.
> See:
> arch/arm/boot/dts/bcm283x.dtsi:145: #mbox-cells = <0>;
> ---
> Documentation/devicetree/bindings/mailbox/mailbox.txt | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
Reviewed-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2018-06-22 14:11 ` [PATCH V3 1/5] dt-bindings: mailbox: allow mbox-cells to be equal to 0 Dong Aisheng
2018-06-25 17:17 ` Rob Herring
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