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Subject[PATCH v9 4/6] Documentation: DT: PL011: hi6220: add compatible string for Hisilicon designed UART
Date
Hisilicon does some performance enhancements based on PL011(e.g. larger
FIFO length), so add one compatible string "hisilicon,hi6220-uart" for
future optimisations or workarounds works.

Signed-off-by: Bintian Wang <bintian.wang@huawei.com>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
---
Documentation/devicetree/bindings/serial/pl011.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/serial/pl011.txt b/Documentation/devicetree/bindings/serial/pl011.txt
index ba3ecb8..cb9fd9d 100644
--- a/Documentation/devicetree/bindings/serial/pl011.txt
+++ b/Documentation/devicetree/bindings/serial/pl011.txt
@@ -1,7 +1,9 @@
* ARM AMBA Primecell PL011 serial UART

Required properties:
-- compatible: must be "arm,primecell", "arm,pl011"
+- compatible: should contain one of the following sequences:
+ * "arm,pl011", "arm,primecell"
+ * "hisilicon,hi6220-pl011", "arm,pl011", "arm,primecell"
- reg: exactly one register range with length 0x1000
- interrupts: exactly one interrupt specifier

--
1.7.9.5


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