[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1432849928-25457-2-git-send-email-moritz.fischer@ettus.com>
Date: Thu, 28 May 2015 14:52:07 -0700
From: Moritz Fischer <moritz.fischer@...us.com>
To: jassisinghbrar@...il.com
Cc: linux-kernel@...r.kernel.org, robh+dt@...nel.org,
pawel.moll@....com, mark.rutland@....com,
ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
michal.simek@...inx.com, soren.brinkmann@...inx.com,
akpm@...ux-foundation.org, gregkh@...uxfoundation.org,
mchehab@....samsung.com, arnd@...db.de, joe@...ches.com,
jingoohan1@...il.com, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Moritz Fischer <moritz.fischer@...us.com>
Subject: [PATCHv3 1/2] dts: Adding docs for Xilinx LogiCORE IP mailbox driver.
Changes from v2:
- Addressed Michal's stylistic comments
- Fixed typo in compatible string
Changes from v1:
- Added common clock framework support
Changes from v0:
- Fixed example bindings
Signed-off-by: Moritz Fischer <moritz.fischer@...us.com>
---
.../bindings/mailbox/xilinx-mailbox.txt | 44 ++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt b/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt
new file mode 100644
index 0000000..ca76efd
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt
@@ -0,0 +1,44 @@
+Xilinx Mailbox Driver
+=====================
+
+Required properties:
+- compatible : "xlnx,mailbox-2.1".
+- reg : physical base address of the mailbox and length of
+ memory mapped region.
+- #mbox-cells : common mailbox binding property to identify the number
+ of cells required for the mailbox specifier, should be 1
+- clocks : phandle to clock provider
+- clock-names : must be 'mbox'
+
+Optional properties:
+- interrupt-parent : interrupt source phandle
+- interrupts : interrupt number, The interrupt specifier format
+ depends on the interrupt controller parent.
+
+Example:
+ mbox: mailbox@...00000 {
+ compatible = "xlnx,mailbox-2.1";
+ reg = <0x40400000 0x3c>;
+ interrupt-parent = <&intc>;
+ interrupts = <5>;
+ #mbox-cells = <1>;
+ clocks = <&clkc 15>;
+ clock-names = "mbox";
+ };
+
+Mailbox client
+===============
+"mboxes" and the optional "mbox-names" (please see
+Documentation/devicetree/bindings/mailbox/mailbox.txt for details). Each value
+of the mboxes property should contain a phandle to the mailbox controller
+device node and second argument is the channel index. It must be 0 (hardware
+support only one channel). The equivalent "mbox-names" property value can be
+used to give a name to the communication channel to be used by the client user.
+
+Example:
+ mclient0: mclient0@400 {
+ compatible = "client-1.0";
+ reg = <0x400 0x10>;
+ mbox-names = "mbox";
+ mboxes = <&mbox 0>;
+ };
--
2.4.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists