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 <[email protected]> Cc: Sudeep Holla <[email protected]> Cc: [email protected] Cc: [email protected] Reviewed-by: Rob Herring <[email protected]> Signed-off-by: Dong Aisheng <[email protected]> --- 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
