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[3/8] dt-bindings: nvmem: sfp: Add TA_PROG_SFP supply

Message ID 20220421175657.1259024-4-sean.anderson@seco.com
State Accepted
Commit 54eb278a06128a83973390fc8b06acf4d6c0675b
Headers show
Series [1/8] dt-bindings: nvmem: sfp: Fix typo | expand

Commit Message

Sean Anderson April 21, 2022, 5:56 p.m. UTC 
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 and FPGA or a GPIO. In
these cases, the driver can automatically enabled and disable it as
necessary.

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

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

diff --git a/Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml b/Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml
index 54086f50157d..e7d1232fcd41 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 TA_PROG_SFP supply. It will be enabled for programming and disabled
+      for reading.
+
 required:
   - compatible
   - reg