From mboxrd@z Thu Jan 1 00:00:00 1970 From: bintian.wang@huawei.com (Bintian Wang) Date: Fri, 29 May 2015 10:08:35 +0800 Subject: [PATCH v8 3/7] Documentation: DT: PL011: hi6220: add compatible string for Hisilicon designed UART In-Reply-To: <1432865319-20413-1-git-send-email-bintian.wang@huawei.com> References: <1432865319-20413-1-git-send-email-bintian.wang@huawei.com> Message-ID: <1432865319-20413-4-git-send-email-bintian.wang@huawei.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Suggested-by: Mark Rutland --- 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 -- 1.9.1