diff mbox series

[V4,1/5] dt-bindings: mailbox: allow mbox-cells to be equal to 0

Message ID 1531061817-1980-2-git-send-email-aisheng.dong@nxp.com
State Not Applicable, archived
Headers show
Series [V4,1/5] dt-bindings: mailbox: allow mbox-cells to be equal to 0 | expand

Commit Message

Dong Aisheng July 8, 2018, 2:56 p.m. UTC 
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: Mark Rutland <mark.rutland@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Rob Herring <robh@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 mbox series

Patch

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 {