linux-kernel - [PATCHv6 1/2] dt-bindings: cadence-quadspi: add options reset property

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Message-Id: <20190613113138.8280-1-dinguyen@kernel.org>
Date:   Thu, 13 Jun 2019 06:31:37 -0500
From:   Dinh Nguyen <dinguyen@...nel.org>
To:     linux-mtd@...ts.infradead.org
Cc:     dinguyen@...nel.org, marex@...x.de, tudor.ambarus@...rochip.com,
        dwmw2@...radead.org, computersforpeace@...il.com,
        bbrezillon@...nel.org, linux-kernel@...r.kernel.org
Subject: [PATCHv6 1/2] dt-bindings: cadence-quadspi: add options reset property

The QSPI module can have an optional reset signals that will hold the
module in a reset state.

Signed-off-by: Dinh Nguyen <dinguyen@...nel.org>
---
v6: no change
v5: document reset-names
v4: no change
v3: created base on review comments
v2: did not exist
v1: did not exist
---
 Documentation/devicetree/bindings/mtd/cadence-quadspi.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt
index 4345c3a6f530..945be7d5b236 100644
--- a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt
+++ b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt
@@ -35,6 +35,9 @@ custom properties:
 		  (qspi_n_ss_out).
 - cdns,tslch-ns : Delay in nanoseconds between setting qspi_n_ss_out low
                   and first bit transfer.
+- resets	: Must contain an entry for each entry in reset-names.
+		  See ../reset/reset.txt for details.
+- reset-names	: Must include either "qspi" and/or "qspi-ocp".
 
 Example:
 
@@ -50,6 +53,8 @@ Example:
 		cdns,fifo-depth = <128>;
 		cdns,fifo-width = <4>;
 		cdns,trigger-address = <0x00000000>;
+		resets = <&rst QSPI_RESET>, <&rst QSPI_OCP_RESET>;
+		reset-names = "qspi", "qspi-ocp";
 
 		flash0: n25q00@0 {
 			...
-- 
2.20.0