On Thu, Apr 21, 2022 at 01:56:52PM -0400, Sean Anderson wrote: > 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@xxxxxxxx> > --- > > .../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..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. > + Doesn't there need to be some indication what this is? Is it a GPIO, or maybe a regulator? Andrew
