Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
IronPort-SDR: KQ4Us2XGzECFelMTW8awu4siqN+LcNy41GzNWEnOXqpChGNJNaqM9wSgWWvszVSC3vOtH0u3Tc
 /zPhoB7r1Lhw6XB8WGTZekd+lyI2pdH9SQcOLcKCeefEupagcVGnr5JetGXQtEqLDlLMFMyxzs
 1+cz2iHD+QzvgCPDsHRhZZfr+Qnc7JTApEyjiqbrteI7+xUxUUXcTYgWTrT5J8GF5wk6rigEKR
 s3C29BgG4VlzZP5N7/Iw5JmVf3G/1uNopFB+q7FKGQmacO1lsumjmqjAapnDavZ0ZgD0Tzy54J
 4Xs=
IronPort-SDR: 3e2u3DSqQSOJ64Asq4RaOOC4SklS2c005bEeibpmTQoSvMLNmVx8cON4uu2U1Ob42NYb1a+d/T
 wwlDQpnYzAflJvWvX4A+sUjTmu4yd0U2kA45P4+wKCWDXOIAop49GS/GVDR3UCUz/8J7NZDIQW
 vz8ybAobFZEHtVqqQkaRflzjbCt97gS2EZNW7w9Wc9b7BltBY8ekPvSAKPRv5Oag8DVskT32CG
 u1Aw8g3hWc2P6g4YvI2OFGKsnj5H9dnyxWWXYBsdekGgvAjNd2rqf88uWz543zjwwjddNY2pqA
 4iPQ+GI8UXeS8AT2TtKiUETn
IronPort-SDR: 54+vnEozrIPP/nGlxcV+NuLLZU4AoXI0bIuVPynL3QuKqnp94GO5rpklzJg4DTr8I6zGhqFLWA
 s1C7Da89ocDa2IAbOOQ3jgYUnykvwd3LzNd0V+BkgTZzUWpTEMqbUHLKpBUCxiib818L/vev0j
 wbVbx4ymaAW+A5LC0e/aj0ba/NOFHW84E9vjETkBd5411ZeP8Yiiw3CeeF8i29a9ZQVFwodlz/
 +K0/YuGGe4kngYCmTUa2VRURvS1FWjQoJ3ZcmhQl0Gq6bhwAh2v0ypiE6FOwm7P+ZdODR6Zyx3
 uAE=
From:   Atish Patra <atish.patra@wdc.com>
To:     linux-kernel@vger.kernel.org
Cc:     Atish Patra <atish.patra@wdc.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Alexios Zavras <alexios.zavras@intel.com>,
        Allison Randal <allison@lohutok.net>,
        Anup Patel <anup.patel@wdc.com>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        devicetree@vger.kernel.org, Enrico Weigelt <info@metux.net>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Johan Hovold <johan@kernel.org>,
        linux-riscv@lists.infradead.org,
        Mark Rutland <mark.rutland@arm.com>,
        Palmer Dabbelt <palmer@sifive.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Rob Herring <robh+dt@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH v2 5/5] dt-bindings: Update the isa string description
Date:   Tue, 30 Jul 2019 18:24:18 -0700
Message-Id: <20190731012418.24565-6-atish.patra@wdc.com>
In-Reply-To: <20190731012418.24565-1-atish.patra@wdc.com>
References: <20190731012418.24565-1-atish.patra@wdc.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The yaml documentation description of isa strings section doesn't
specify anything about the case sensitiveness of the isa strings.
The RISC-V specification clearly specifies it to be case insensitive.
However, Linux kernel supports only lower case isa strings.

Update the yaml documentation accordingly to avoid any confusion.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
---
 Documentation/devicetree/bindings/riscv/cpus.yaml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
index c899111aa5e3..e22a2b7ebafa 100644
--- a/Documentation/devicetree/bindings/riscv/cpus.yaml
+++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -46,10 +46,14 @@ properties:
           - rv64imafdc
     description:
       Identifies the specific RISC-V instruction set architecture
-      supported by the hart.  These are documented in the RISC-V
+      supported by the hart. These are documented in the RISC-V
       User-Level ISA document, available from
       https://riscv.org/specifications/
 
+      Linux kernel only supports lower case isa strings. Thus,
+      isa strings must be specified in lower case in device tree
+      as well.
+
   timebase-frequency:
     type: integer
     minimum: 1
-- 
2.21.0