diff options
| author | Sean Anderson <sean.anderson@seco.com> | 2022-04-29 17:26:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-09 15:46:29 +0200 |
| commit | 54eb278a06128a83973390fc8b06acf4d6c0675b (patch) | |
| tree | bff8c6018d704459d8c2d6481286b8ef15033209 /Documentation/devicetree/bindings/nvmem | |
| parent | 8cb0cd68bef75af5ac8ef93f3314d4f8dc8767a3 (diff) | |
dt-bindings: nvmem: sfp: Add TA_PROG_SFP supply
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.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-14-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/nvmem')
| -rw-r--r-- | Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml | 5 |
1 files changed, 5 insertions, 0 deletions
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 |