pinctrl: aspeed: g5: Constrain LPC binding revision workaround to AST2500

Discovering a phandle to an AST2400 or AST2600 LPC node indicates an
error for the purpose of the AST2500 pinctrl driver.

Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>

Author: amboar

drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c

@@ -2654,9 +2654,7 @@ static struct regmap *aspeed_g5_acquire_regmap(struct aspeed_pinmux_data *ctx,
 		np = of_parse_phandle(ctx->dev->of_node,
 					"aspeed,external-nodes", 1);
 		if (np) {
-			if (!of_device_is_compatible(np->parent, "aspeed,ast2400-lpc-v2") &&
-			    !of_device_is_compatible(np->parent, "aspeed,ast2500-lpc-v2") &&
-			    !of_device_is_compatible(np->parent, "aspeed,ast2600-lpc-v2"))
+			if (!of_device_is_compatible(np->parent, "aspeed,ast2500-lpc-v2"))
 				return ERR_PTR(-ENODEV);
 
 			map = syscon_node_to_regmap(np->parent);