--- zzzz-none-000/linux-4.9.276/drivers/pinctrl/pinctrl-lantiq.h	2021-07-20 14:21:16.000000000 +0000
+++ falcon-5530-750/linux-4.9.276/drivers/pinctrl/pinctrl-lantiq.h	2023-04-05 08:19:01.000000000 +0000
@@ -23,7 +23,7 @@
 
 #define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)
 
-#define LTQ_MAX_MUX		4
+#define LTQ_MAX_MUX 5
 #define MFPR_FUNC_MASK		0x3
 
 #define LTQ_PINCONF_PACK(param, arg)		((param) << 16 | (arg))
@@ -105,6 +105,31 @@
 	int (*apply_mux)(struct pinctrl_dev *pctrldev, int pin, int mux);
 };
 
+#ifdef CONFIG_PINCTRL_SYSFS
+struct ltq_pin_sys_desc {
+	unsigned long flags;
+#define FLAG_EXPORT 0 /* protected by sysfs_lock */
+};
+struct ltq_pinctrl_sysfs_ops {
+	int (*pin_config_get)(struct pinctrl_dev *pctrldev,
+			      unsigned pin,
+			      unsigned long *config);
+	int (*pin_config_set)(struct pinctrl_dev *pctrldev,
+			      unsigned pin,
+			      unsigned long *configs,
+			      unsigned num_configs);
+	int (*pin_mux_set)(struct pinctrl_dev *pctrldev, int pin, int mux);
+	int (*pin_mux_get)(struct pinctrl_dev *pctrldev, int pin, int *mux);
+	int (*pin_mux_avail_get)(struct pinctrl_dev *pctrldev, int pin, int *avail);
+};
+struct ltq_pinctrl_sysfs {
+	int total_pins;
+	struct ltq_pin_sys_desc *pin_desc_array;
+	struct platform_device *pinctrl_platform_dev;
+	struct ltq_pinctrl_sysfs_ops *sysfs_ops;
+};
+int pinctrl_sysfs_init(struct platform_device *pdev, int total_pins, struct ltq_pinctrl_sysfs_ops *ops);
+#endif
 enum ltq_pin {
 	GPIO0 = 0,
 	GPIO1,