[PATCH dt-schema] schemas: i2c: Allow '-' in 'i2c-.*' node names

When allowing extended i2c node names, the '-' character was not added
to the character class. Fixes the following error:

.../Kernel/linux/arch/arm/boot/dts/microchip/usb_a9g20.dtb: i2c-gpio-0 (i2c-gpio): $nodename:0: 'i2c-gpio-0' does not match '^i2c(@.+|-[a-z0-9]+)?$'
        from schema $id: http://devicetree.org/schemas/i2c/i2c-gpio.yaml#

Fixes: 647181a1f8ff ("schemas: i2c: Allow for 'i2c-.*' node names")
Signed-off-by: Wolfram Sang <[email protected]>
---

I don't know if it is possible to define a custom character class to
avoid similar problems in the future?

 dtschema/schemas/i2c/i2c-controller.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dtschema/schemas/i2c/i2c-controller.yaml b/dtschema/schemas/i2c/i2c-controller.yaml
index 8488edd5ecc4..4abcf1a0ddcc 100644
--- a/dtschema/schemas/i2c/i2c-controller.yaml
+++ b/dtschema/schemas/i2c/i2c-controller.yaml
@@ -14,7 +14,7 @@ maintainers:
 
 properties:
   $nodename:
-    pattern: "^i2c(@.+|-[a-z0-9]+)?$"
+    pattern: "^i2c(@.+|-[a-z0-9\\-]+)?$"
 
   i2c-bus:
     type: object
-- 
2.47.2