leds: tca6507: Don't use fixed GPIO base

First of all, the fixed GPIO base is source of troubles and
it doesn't scale. Second, there is no in-kernel user of this
base, so drop it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231002135629.2605462-1-andriy.shevchenko@linux.intel.comSigned-off-by: Lee Jones <lee@kernel.org>

drivers/leds/leds-tca6507.c

@@ -92,9 +92,6 @@
 
 struct tca6507_platform_data {
 	struct led_platform_data leds;
-#ifdef CONFIG_GPIOLIB
-	int gpio_base;
-#endif
 };
 
 #define	TCA6507_MAKE_GPIO 1
@@ -636,7 +633,7 @@ static int tca6507_probe_gpios(struct device *dev,
 
 	tca->gpio.label = "gpio-tca6507";
 	tca->gpio.ngpio = gpios;
-	tca->gpio.base = pdata->gpio_base;
+	tca->gpio.base = -1;
 	tca->gpio.owner = THIS_MODULE;
 	tca->gpio.direction_output = tca6507_gpio_direction_output;
 	tca->gpio.set = tca6507_gpio_set_value;
@@ -715,9 +712,6 @@ tca6507_led_dt_init(struct device *dev)
 
 	pdata->leds.leds = tca_leds;
 	pdata->leds.num_leds = NUM_LEDS;
-#ifdef CONFIG_GPIOLIB
-	pdata->gpio_base = -1;
-#endif
 
 	return pdata;
 }