Re: [PATCH v2 1/3] dt-bindings: nvmem: add description for UniPhier eFuse
From: Rob Herring <hidden>
Date: 2017-10-13 13:49:06
Also in:
linux-arm-kernel, lkml
On Fri, Oct 06, 2017 at 02:02:58PM +0900, Keiji Hayashibara wrote:
quoted hunk ↗ jump to hunk
Add uniphier-efuse dt-bindings documentation. Signed-off-by: Keiji Hayashibara <redacted> --- .../devicetree/bindings/nvmem/uniphier-efuse.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/uniphier-efuse.txtdiff --git a/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt b/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt new file mode 100644 index 0000000..1a394e5 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt@@ -0,0 +1,49 @@ += UniPhier eFuse device tree bindings = + +This UniPhier eFuse must be under soc-glue. + +Required properties: +- compatible: should be "socionext,uniphier-efuse" +- reg: should contain the register location and length + += Data cells = +Are child nodes of efuse, bindings of which as described in +bindings/nvmem/nvmem.txt + +Example: + + soc-glue@5f900000 { + compatible = "socionext,uniphier-ld20-soc-glue-debug", + "simple-mfd"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x5f900000 0x2000>; + + efuse@100 { + compatible = "socionext,uniphier-efuse"; + reg = <0x100 0x28>; + }; + + efuse@200 { + compatible = "socionext,uniphier-efuse"; + reg = <0x200 0x68>; + #address-cells = <1>; + #size-cells = <1>; + + /* Data cells */ + usb_mon: usb_mon {
Don't use '_' and needs a unit-address. Build your dtb with W=2 option and you'll get these warnings.
+ reg = <0x54 0xc>;
Without ranges above, this is address 5f900054. I think you want 5f900254. You need: ranges = <0x0 0x200 0x68>;
+ };
+ };
+ };
+
+= Data consumers =
+Are device nodes which consume nvmem data cells.
+
+Example:
+
+ usb {
+ ...
+ nvmem-cells = <&usb_mon>;
+ nvmem-cell-names = "usb_mon";
+ }
--
2.7.4-- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html