From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Wed, 5 Mar 2025 13:34:09 +0000 (+0100)
Subject: scsi: ufs: dt-bindings: renesas,ufs: Add calibration data
X-Git-Tag: v6.15-rc1~164^2~9^2~6
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=67407b84e0ed3915d77bfd1d05e7bd51ddbf03ee;p=thirdparty%2Fkernel%2Flinux.git

scsi: ufs: dt-bindings: renesas,ufs: Add calibration data

On R-Car S4-8 ES1.2, the E-FUSE block contains PLL and AFE tuning
parameters for the Universal Flash Storage controller.  Document the
related NVMEM properties, and update the example.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/2f337169f8183d48b7d94ee13565fea804aade84.1741179611.git.geert+renesas@glider.be
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---

diff --git a/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml b/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml
index 1949a15e73d25..ac11ac7d1d12f 100644
--- a/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml
@@ -33,6 +33,16 @@ properties:
   resets:
     maxItems: 1
 
+  nvmem-cells:
+    maxItems: 1
+
+  nvmem-cell-names:
+    items:
+      - const: calibration
+
+dependencies:
+  nvmem-cells: [ nvmem-cell-names ]
+
 required:
   - compatible
   - reg
@@ -58,4 +68,6 @@ examples:
         freq-table-hz = <200000000 200000000>, <38400000 38400000>;
         power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
         resets = <&cpg 1514>;
+        nvmem-cells = <&ufs_tune>;
+        nvmem-cell-names = "calibration";
     };