On Fri, Dec 20, 2024 at 01:49:57PM +0000, Tudor Ambarus wrote: > Add bindings for the Samsung Exynos Mailbox Controller. > > Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx> > --- > .../bindings/mailbox/google,gs101-mbox.yaml | 70 ++++++++++++++++++++++ > include/dt-bindings/mailbox/google,gs101.h | 14 +++++ Drop the header, not used. > 2 files changed, 84 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mailbox/google,gs101-mbox.yaml b/Documentation/devicetree/bindings/mailbox/google,gs101-mbox.yaml > new file mode 100644 > index 000000000000..a1fbc3b2b9de > --- /dev/null > +++ b/Documentation/devicetree/bindings/mailbox/google,gs101-mbox.yaml > @@ -0,0 +1,70 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +# Copyright 2024 Linaro Ltd. > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mailbox/google,gs101-mbox.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Samsung Exynos Mailbox Controller > + > +maintainers: > + - Tudor Ambarus <tudor.ambarus@xxxxxxxxxx> > + > +description: | Drop | > + The Samsung Exynos mailbox controller, used on Google GS101 SoC, has 16 flag > + bits for hardware interrupt generation and a shared register for passing > + mailbox messages. When the controller is used by the ACPM protocol the shared > + register is ignored and the mailbox controller acts as a doorbell. > + The controller just raises the interrupt to the firmware after the > + ACPM protocol has written the message to SRAM. > + > +properties: > + compatible: > + const: google,gs101-mbox > + > + reg: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + clock-names: > + items: > + - const: pclk > + > + interrupts: > + description: IRQ line for the RX mailbox. > + maxItems: 1 > + > + '#mbox-cells': > + const: 0 > + > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + - interrupts > + - '#mbox-cells' > + > +additionalProperties: false > + > +examples: > + # Doorbell mode. Drop comment, not applicable now, I think. Best regards, Krzysztof
