[PATCH v6 1/5] dt-bindings: mailbox: allow mbox-cells to be equal to 0

From: Oleksij Rempel
Date: Sun Jul 22 2018 - 02:40:04 EST


From: Dong Aisheng <aisheng.dong@xxxxxxx>

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@xxxxxxx>
Cc: Sudeep Holla <sudeep.holla@xxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
---
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 af8ecee2ac68..c2fcd054141a 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 {
--
2.18.0