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From:   Sean Anderson <sean.anderson@seco.com>
To:     linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Cc:     Andrew Lunn <andrew@lunn.ch>, Rob Herring <robh+dt@kernel.org>,
        Shawn Guo <shawnguo@kernel.org>, linux-kernel@vger.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Li Yang <leoyang.li@nxp.com>, Michael Walle <michael@walle.cc>,
        Sean Anderson <sean.anderson@seco.com>
Subject: [PATCH v2 3/9] dt-bindings: nvmem: sfp: Add TA_PROG_SFP supply
Date:   Fri, 22 Apr 2022 10:51:41 -0400
Message-Id: <20220422145147.2210587-4-sean.anderson@seco.com>
In-Reply-To: <20220422145147.2210587-1-sean.anderson@seco.com>
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The TA_PROG_SFP supply must be enabled to program the fuses, and
disabled to read the fuses (such as at power-on-reset). On many boards,
this supply is controlled by a jumper. The user must manually insert or
remove it at the appropriate time in the programming process. However,
on other boards this supply is controlled by an FPGA or a GPIO. In
these cases, the driver can automatically enable and disable it as
necessary.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
---

Changes in v2:
- Mention "regulator" in the description for ta-prog-sfp-supply

 .../devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml        | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml b/Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml
index 54086f50157d..c5d7375b840a 100644
--- a/Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml
+++ b/Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml
@@ -32,6 +32,11 @@ properties:
   clock-names:
     const: sfp
 
+  ta-prog-sfp-supply:
+    description:
+      The regulator for the TA_PROG_SFP pin. It will be enabled for programming
+      and disabled for reading.
+
 required:
   - compatible
   - reg
-- 
2.35.1.1320.gc452695387.dirty