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{
    "id": 815436,
    "url": "http://patchwork.ozlabs.org/api/patches/815436/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/devicetree-bindings/patch/20170919105605.18533-4-vigneshr@ti.com/",
    "project": {
        "id": 37,
        "url": "http://patchwork.ozlabs.org/api/projects/37/?format=api",
        "name": "Devicetree Bindings",
        "link_name": "devicetree-bindings",
        "list_id": "devicetree.vger.kernel.org",
        "list_email": "devicetree@vger.kernel.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": "",
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    },
    "msgid": "<20170919105605.18533-4-vigneshr@ti.com>",
    "list_archive_url": null,
    "date": "2017-09-19T10:56:03",
    "name": "[RESEND,v2,3/5] mtd: spi-nor: cadence-quadspi: Add new binding to enable loop-back circuit",
    "commit_ref": null,
    "pull_url": null,
    "state": "not-applicable",
    "archived": true,
    "hash": "7772878ebe166d2d0d7e4ea978d29421dd51db0a",
    "submitter": {
        "id": 65039,
        "url": "http://patchwork.ozlabs.org/api/people/65039/?format=api",
        "name": "Raghavendra, Vignesh",
        "email": "vigneshr@ti.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/devicetree-bindings/patch/20170919105605.18533-4-vigneshr@ti.com/mbox/",
    "series": [
        {
            "id": 3840,
            "url": "http://patchwork.ozlabs.org/api/series/3840/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/devicetree-bindings/list/?series=3840",
            "date": "2017-09-19T10:56:01",
            "name": "K2G: Add QSPI support",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/3840/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/815436/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/815436/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<devicetree-owner@vger.kernel.org>",
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        ],
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        "From": "Vignesh R <vigneshr@ti.com>",
        "To": "Marek Vasut <marek.vasut@gmail.com>,\n\tCyrille Pitchen <cyrille.pitchen@wedev4u.fr>",
        "CC": "David Woodhouse <dwmw2@infradead.org>,\n\tBrian Norris <computersforpeace@gmail.com>,\n\tBoris Brezillon <boris.brezillon@free-electrons.com>,\n\tRob Herring <robh+dt@kernel.org>,\n\t<linux-mtd@lists.infradead.org>, <devicetree@vger.kernel.org>,\n\t<linux-kernel@vger.kernel.org>, Vignesh R <vigneshr@ti.com>,\n\tlinux-arm-kernel <linux-arm-kernel@lists.infradead.org>",
        "Subject": "[RESEND PATCH v2 3/5] mtd: spi-nor: cadence-quadspi: Add new binding\n\tto enable loop-back circuit",
        "Date": "Tue, 19 Sep 2017 16:26:03 +0530",
        "Message-ID": "<20170919105605.18533-4-vigneshr@ti.com>",
        "X-Mailer": "git-send-email 2.14.1",
        "In-Reply-To": "<20170919105605.18533-1-vigneshr@ti.com>",
        "References": "<20170919105605.18533-1-vigneshr@ti.com>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain",
        "X-EXCLAIMER-MD-CONFIG": "e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180",
        "Sender": "devicetree-owner@vger.kernel.org",
        "Precedence": "bulk",
        "List-ID": "<devicetree.vger.kernel.org>",
        "X-Mailing-List": "devicetree@vger.kernel.org"
    },
    "content": "Cadence QSPI IP has a adapted loop-back circuit which can be enabled by\nsetting BYPASS field to 0 in READCAPTURE register. It enables use of\nQSPI return clock to latch the data rather than the internal QSPI\nreference clock. For high speed operations, adapted loop-back circuit\nusing QSPI return clock helps to increase data valid window.\n\nAdd DT parameter cdns,rclk-en to help enable adapted loop-back circuit\nfor boards which do have QSPI return clock provided. Update binding\ndocumentation for the same.\n\nSigned-off-by: Vignesh R <vigneshr@ti.com>\nAcked-by: Rob Herring <robh@kernel.org>\n---\n Documentation/devicetree/bindings/mtd/cadence-quadspi.txt | 3 +++\n 1 file changed, 3 insertions(+)",
    "diff": "diff --git a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt\nindex 7dbe3bd9ac56..bb2075df9b38 100644\n--- a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt\n+++ b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt\n@@ -16,6 +16,9 @@ Required properties:\n \n Optional properties:\n - cdns,is-decoded-cs : Flag to indicate whether decoder is used or not.\n+- cdns,rclk-en : Flag to indicate that QSPI return clock is used to latch\n+  the read data rather than the QSPI clock. Make sure that QSPI return\n+  clock is populated on the board before using this property.\n \n Optional subnodes:\n Subnodes of the Cadence Quad SPI controller are spi slave nodes with additional\n",
    "prefixes": [
        "RESEND",
        "v2",
        "3/5"
    ]
}