gpio fixes for v5.18-rc6

- fix the bounds check for the 'gpio-reserved-ranges' device property in
   gpiolib-of
 - drop the assignment of the pwm base number in gpio-mvebu (this was missed
   by the patch doing it globally for all pwm drivers)
 - fix the fwnode assignment (use own fwnode, not the parent's one) for the
   GPIO irqchip in gpio-visconti
 - update the irq_stat field before checking the trigger field in gpio-pca953x
 - update GPIO entry in MAINTAINERS
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Merge tag 'gpio-fixes-for-v5.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix the bounds check for the 'gpio-reserved-ranges' device property
   in gpiolib-of

 - drop the assignment of the pwm base number in gpio-mvebu (this was
   missed by the patch doing it globally for all pwm drivers)

 - fix the fwnode assignment (use own fwnode, not the parent's one) for
   the GPIO irqchip in gpio-visconti

 - update the irq_stat field before checking the trigger field in
   gpio-pca953x

 - update GPIO entry in MAINTAINERS

* tag 'gpio-fixes-for-v5.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: pca953x: fix irq_stat not updated when irq is disabled (irq_mask not set)
  gpio: visconti: Fix fwnode of GPIO IRQ
  MAINTAINERS: update the GPIO git tree entry
  gpio: mvebu: drop pwm base assignment
  gpiolib: of: fix bounds check for 'gpio-reserved-ranges'

MAINTAINERS

@@ -8385,7 +8385,7 @@ M:	Linus Walleij <linus.walleij@linaro.org>
 M:	Bartosz Golaszewski <brgl@bgdev.pl>
 L:	linux-gpio@vger.kernel.org
 S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git
 F:	Documentation/ABI/obsolete/sysfs-gpio
 F:	Documentation/ABI/testing/gpio-cdev
 F:	Documentation/admin-guide/gpio/

drivers/gpio/gpio-mvebu.c

@@ -871,13 +871,6 @@ static int mvebu_pwm_probe(struct platform_device *pdev,
 	mvpwm->chip.dev = dev;
 	mvpwm->chip.ops = &mvebu_pwm_ops;
 	mvpwm->chip.npwm = mvchip->chip.ngpio;
-	/*
-	 * There may already be some PWM allocated, so we can't force
-	 * mvpwm->chip.base to a fixed point like mvchip->chip.base.
-	 * So, we let pwmchip_add() do the numbering and take the next free
-	 * region.
-	 */
-	mvpwm->chip.base = -1;
 
 	spin_lock_init(&mvpwm->lock);
 

drivers/gpio/gpio-pca953x.c

@@ -762,11 +762,11 @@ static bool pca953x_irq_pending(struct pca953x_chip *chip, unsigned long *pendin
 	bitmap_xor(cur_stat, new_stat, old_stat, gc->ngpio);
 	bitmap_and(trigger, cur_stat, chip->irq_mask, gc->ngpio);
 
+	bitmap_copy(chip->irq_stat, new_stat, gc->ngpio);
+
 	if (bitmap_empty(trigger, gc->ngpio))
 		return false;
 
-	bitmap_copy(chip->irq_stat, new_stat, gc->ngpio);
-
 	bitmap_and(cur_stat, chip->irq_trig_fall, old_stat, gc->ngpio);
 	bitmap_and(old_stat, chip->irq_trig_raise, new_stat, gc->ngpio);
 	bitmap_or(new_stat, old_stat, cur_stat, gc->ngpio);

drivers/gpio/gpio-visconti.c

@@ -130,7 +130,6 @@ static int visconti_gpio_probe(struct platform_device *pdev)
 	struct gpio_irq_chip *girq;
 	struct irq_domain *parent;
 	struct device_node *irq_parent;
-	struct fwnode_handle *fwnode;
 	int ret;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -150,14 +149,12 @@ static int visconti_gpio_probe(struct platform_device *pdev)
 	}
 
 	parent = irq_find_host(irq_parent);
+	of_node_put(irq_parent);
 	if (!parent) {
 		dev_err(dev, "No IRQ parent domain\n");
 		return -ENODEV;
 	}
 
-	fwnode = of_node_to_fwnode(irq_parent);
-	of_node_put(irq_parent);
-
 	ret = bgpio_init(&priv->gpio_chip, dev, 4,
 			 priv->base + GPIO_IDATA,
 			 priv->base + GPIO_OSET,
@@ -180,7 +177,7 @@ static int visconti_gpio_probe(struct platform_device *pdev)
 
 	girq = &priv->gpio_chip.irq;
 	girq->chip = irq_chip;
-	girq->fwnode = fwnode;
+	girq->fwnode = of_node_to_fwnode(dev->of_node);
 	girq->parent_domain = parent;
 	girq->child_to_parent_hwirq = visconti_gpio_child_to_parent_hwirq;
 	girq->populate_parent_alloc_arg = visconti_gpio_populate_parent_fwspec;

drivers/gpio/gpiolib-of.c

@@ -910,7 +910,7 @@ static void of_gpiochip_init_valid_mask(struct gpio_chip *chip)
 					   i, &start);
 		of_property_read_u32_index(np, "gpio-reserved-ranges",
 					   i + 1, &count);
-		if (start >= chip->ngpio || start + count >= chip->ngpio)
+		if (start >= chip->ngpio || start + count > chip->ngpio)
 			continue;
 
 		bitmap_clear(chip->valid_mask, start, count);