From: Peng Hao <peng.hao2@zte.com.cn>
To: robh+dt@kernel.org, mark.rutland@arm.com, arnd@arndb.de,
gregkh@linuxfoundation.org, andy@infradead.org,
dvhart@infradead.org
Cc: linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org, hutao@cn.fujitsu.com,
Peng Hao <peng.hao2@zte.com.cn>
Subject: [PATCH 4/4] pvpanic: add document for pvpanic-mmio DT
Date: Wed, 24 Oct 2018 01:25:37 +0800 [thread overview]
Message-ID: <1540315537-70007-4-git-send-email-peng.hao2@zte.com.cn> (raw)
In-Reply-To: <1540315537-70007-1-git-send-email-peng.hao2@zte.com.cn>
Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
---
.../devicetree/bindings/arm/pvpanic-mmio.txt | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/pvpanic-mmio.txt
diff --git a/Documentation/devicetree/bindings/arm/pvpanic-mmio.txt b/Documentation/devicetree/bindings/arm/pvpanic-mmio.txt
new file mode 100644
index 0000000..96c84e15
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/pvpanic-mmio.txt
@@ -0,0 +1,26 @@
+* QEMU PVPANIC MMIO Configuration bindings for ARM
+
+QEMU's aarch64-softmmu emulation / virtualization targets provide the
+following PVPANIC MMIO Configuration interface on the "virt" machine
+type:
+
+- a read-write, 16-bit wide data register.
+
+QEMU exposes the data register to ARM guests as memory mapped registers.
+
+Required properties:
+
+- compatible: "qemu,pvpanic-mmio".
+
+Example:
+
+/ {
+ #size-cells = <0x2>;
+ #address-cells = <0x2>;
+
+ pvpanic-mmio@9060000 {
+ compatible = "qemu,pvpanic-mmio";
+ reg = <0x0 0x9060000 0x0 0x2>;
+ };
+};
+
--
1.8.3.1
next prev parent reply other threads:[~2018-10-23 9:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-23 17:25 [PATCH 1/4] pvpanic: move pvpanic to misc as common driver Peng Hao
2018-10-23 17:25 ` [PATCH 2/4] pvpanic: add pvpanic support for arm64 Peng Hao
2018-10-23 10:38 ` Mark Rutland
2018-10-23 17:25 ` [PATCH 3/4] pvpanic: add access to pvpanic device information by using FDT Peng Hao
2018-10-23 17:25 ` Peng Hao [this message]
2018-10-23 10:41 ` [PATCH 4/4] pvpanic: add document for pvpanic-mmio DT Mark Rutland
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