dt-binding: spi: Add npcm845 compatible to npcm-fiu document

Add a compatible string and description for Nuvoton BMC NPCM845 FIU.

Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20220718081146.256070-3-tmaimon77@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/spi/nuvoton,npcm-fiu.txt b/Documentation/devicetree/bindings/spi/nuvoton,npcm-fiu.txt
index a388005..c63ce4c 100644 (file)
--- a/Documentation/devicetree/bindings/spi/nuvoton,npcm-fiu.txt
+++ b/Documentation/devicetree/bindings/spi/nuvoton,npcm-fiu.txt
@@ -6,8 +6,13 @@ The NPCM7XX supports three FIU modules,
 FIU0 and FIUx supports two chip selects,
 FIU3 support four chip select.
 
+The NPCM8XX supports four FIU modules,
+FIU0 and FIUx supports two chip selects,
+FIU1 and FIU3 supports four chip selects.
+
 Required properties:
-  - compatible : "nuvoton,npcm750-fiu" for the NPCM7XX BMC
+  - compatible : "nuvoton,npcm750-fiu" for Poleg NPCM7XX BMC
+                            "nuvoton,npcm845-fiu" for Arbel NPCM8XX BMC
   - #address-cells : should be 1.
   - #size-cells : should be 0.
   - reg : the first contains the register location and length,
@@ -30,6 +35,12 @@ Aliases:
                fiu1 represent fiu 3 controller
                fiu2 represent fiu x controller
 
+  In the NPCM8XX BMC:
+               fiu0 represent fiu 0 controller
+               fiu1 represent fiu 1 controller
+               fiu2 represent fiu 3 controller
+               fiu3 represent fiu x controller
+
 Example:
 fiu3: spi@c00000000 {
        compatible = "nuvoton,npcm750-fiu";