dt-bindings: mfd: mt6397: Split out compatible for MediaTek MT6366 PMIC

The MT6366 PMIC is mostly, but not fully, compatible with MT6358. It has
a different set of regulators. Specifically, it lacks the camera related
VCAM* LDOs and VLDO28, but has additional VM18, VMDDR, and VSRAM_CORE LDOs.

The PMICs contain a chip ID register that can be used to detect which
exact model is preset, so it is possible to share a common base
compatible string.

Add a separate compatible for the MT6366 PMIC, with a fallback to the
MT6358 PMIC.

Fixes: 49be1630 ("dt-bindings: mfd: Add compatible for the MediaTek MT6366 PMIC")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230928085537.3246669-2-wenst@chromium.orgSigned-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/mfd/mt6397.txt

@@ -22,8 +22,9 @@ compatible:
 	"mediatek,mt6323" for PMIC MT6323
 	"mediatek,mt6331" for PMIC MT6331 and MT6332
 	"mediatek,mt6357" for PMIC MT6357
-	"mediatek,mt6358" for PMIC MT6358 and MT6366
+	"mediatek,mt6358" for PMIC MT6358
 	"mediatek,mt6359" for PMIC MT6359
+	"mediatek,mt6366", "mediatek,mt6358" for PMIC MT6366
 	"mediatek,mt6397" for PMIC MT6397
 
 Optional subnodes:
@@ -40,6 +41,7 @@ Optional subnodes:
 		- compatible: "mediatek,mt6323-regulator"
 	see ../regulator/mt6323-regulator.txt
 		- compatible: "mediatek,mt6358-regulator"
+		- compatible: "mediatek,mt6366-regulator", "mediatek-mt6358-regulator"
 	see ../regulator/mt6358-regulator.txt
 		- compatible: "mediatek,mt6397-regulator"
 	see ../regulator/mt6397-regulator.txt