| Message ID | 1431007225-8513-5-git-send-email-bintian.wang@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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
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(-)