Merge tag 'intel-pinctrl-v5.19-2' of gitolite.kernel.org:pub/scm/linux/kernel/git/pinctrl/intel into devel

intel-pinctrl for v5.19-2

* Fix immutable IRQ chip examples in the GPIO documentation
* Make use of immutable IRQ chip in Intel pin control drivers
* Add module alias for Intel Apollo Lake

The following is an automated git shortlog grouped by driver:

baytrail:
 -  make irq_chip immutable

broxton:
 -  Add module alias for Intel Apollo Lake

cherryview:
 -  Use GPIO chip pointer in chv_gpio_irq_mask_unmask()
 -  make irq_chip immutable

Documentation:
 -  gpio: Advertise irqd_to_hwirq() helper in the examples
 -  gpio: Fix IRQ mask and unmask examples

intel:
 -  Fix kernel doc format, i.e. add return sections
 -  Drop unused irqchip member in struct intel_pinctrl
 -  make irq_chip immutable

lynxpoint:
 -  make irq_chip immutable

6 files changed, 110 insertions, 72 deletions

diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index f89c9fcd4e1b..31f8f271628c 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -1350,15 +1350,15 @@ static void byt_irq_ack(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *vg = gpiochip_get_data(gc);
-	unsigned int offset = irqd_to_hwirq(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	void __iomem *reg;
 
-	reg = byt_gpio_reg(vg, offset, BYT_INT_STAT_REG);
+	reg = byt_gpio_reg(vg, hwirq, BYT_INT_STAT_REG);
 	if (!reg)
 		return;
 
 	raw_spin_lock(&byt_lock);
-	writel(BIT(offset % 32), reg);
+	writel(BIT(hwirq % 32), reg);
 	raw_spin_unlock(&byt_lock);
 }
 
@@ -1366,20 +1366,24 @@ static void byt_irq_mask(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *vg = gpiochip_get_data(gc);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 
-	byt_gpio_clear_triggering(vg, irqd_to_hwirq(d));
+	byt_gpio_clear_triggering(vg, hwirq);
+	gpiochip_disable_irq(gc, hwirq);
 }
 
 static void byt_irq_unmask(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *vg = gpiochip_get_data(gc);
-	unsigned int offset = irqd_to_hwirq(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	unsigned long flags;
 	void __iomem *reg;
 	u32 value;
 
-	reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
+	gpiochip_enable_irq(gc, hwirq);
+
+	reg = byt_gpio_reg(vg, hwirq, BYT_CONF0_REG);
 	if (!reg)
 		return;
 
@@ -1412,12 +1416,13 @@ static void byt_irq_unmask(struct irq_data *d)
 static int byt_irq_type(struct irq_data *d, unsigned int type)
 {
 	struct intel_pinctrl *vg = gpiochip_get_data(irq_data_get_irq_chip_data(d));
-	u32 offset = irqd_to_hwirq(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	u32 value;
 	unsigned long flags;
-	void __iomem *reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
+	void __iomem *reg;
 
-	if (!reg || offset >= vg->chip.ngpio)
+	reg = byt_gpio_reg(vg, hwirq, BYT_CONF0_REG);
+	if (!reg)
 		return -EINVAL;
 
 	raw_spin_lock_irqsave(&byt_lock, flags);
@@ -1447,6 +1452,16 @@ static int byt_irq_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
+static const struct irq_chip byt_gpio_irq_chip = {
+	.name		= "BYT-GPIO",
+	.irq_ack	= byt_irq_ack,
+	.irq_mask	= byt_irq_mask,
+	.irq_unmask	= byt_irq_unmask,
+	.irq_set_type	= byt_irq_type,
+	.flags		= IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED | IRQCHIP_IMMUTABLE,
+	GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
 static void byt_gpio_irq_handler(struct irq_desc *desc)
 {
 	struct irq_data *data = irq_desc_get_irq_data(desc);
@@ -1633,15 +1648,8 @@ static int byt_gpio_probe(struct intel_pinctrl *vg)
 	if (irq > 0) {
 		struct gpio_irq_chip *girq;
 
-		vg->irqchip.name = "BYT-GPIO",
-		vg->irqchip.irq_ack = byt_irq_ack,
-		vg->irqchip.irq_mask = byt_irq_mask,
-		vg->irqchip.irq_unmask = byt_irq_unmask,
-		vg->irqchip.irq_set_type = byt_irq_type,
-		vg->irqchip.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED,
-
 		girq = &gc->irq;
-		girq->chip = &vg->irqchip;
+		gpio_irq_chip_set_chip(girq, &byt_gpio_irq_chip);
 		girq->init_hw = byt_gpio_irq_init_hw;
 		girq->init_valid_mask = byt_init_irq_valid_mask;
 		girq->parent_handler = byt_gpio_irq_handler;
diff --git a/drivers/pinctrl/intel/pinctrl-broxton.c b/drivers/pinctrl/intel/pinctrl-broxton.c
index 2be7e414f803..fb15cd10a32f 100644
--- a/drivers/pinctrl/intel/pinctrl-broxton.c
+++ b/drivers/pinctrl/intel/pinctrl-broxton.c
@@ -1035,4 +1035,5 @@ module_exit(bxt_pinctrl_exit);
 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
 MODULE_DESCRIPTION("Intel Broxton SoC pinctrl/GPIO driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:apollolake-pinctrl");
 MODULE_ALIAS("platform:broxton-pinctrl");
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 1d5818269076..26b2a425d201 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1242,12 +1242,12 @@ static void chv_gpio_irq_ack(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
-	int pin = irqd_to_hwirq(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	u32 intr_line;
 
 	raw_spin_lock(&chv_lock);
 
-	intr_line = chv_readl(pctrl, pin, CHV_PADCTRL0);
+	intr_line = chv_readl(pctrl, hwirq, CHV_PADCTRL0);
 	intr_line &= CHV_PADCTRL0_INTSEL_MASK;
 	intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT;
 	chv_pctrl_writel(pctrl, CHV_INTSTAT, BIT(intr_line));
@@ -1255,17 +1255,15 @@ static void chv_gpio_irq_ack(struct irq_data *d)
 	raw_spin_unlock(&chv_lock);
 }
 
-static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
+static void chv_gpio_irq_mask_unmask(struct gpio_chip *gc, irq_hw_number_t hwirq, bool mask)
 {
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
-	int pin = irqd_to_hwirq(d);
 	u32 value, intr_line;
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&chv_lock, flags);
 
-	intr_line = chv_readl(pctrl, pin, CHV_PADCTRL0);
+	intr_line = chv_readl(pctrl, hwirq, CHV_PADCTRL0);
 	intr_line &= CHV_PADCTRL0_INTSEL_MASK;
 	intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT;
 
@@ -1281,12 +1279,20 @@ static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
 
 static void chv_gpio_irq_mask(struct irq_data *d)
 {
-	chv_gpio_irq_mask_unmask(d, true);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+	chv_gpio_irq_mask_unmask(gc, hwirq, true);
+	gpiochip_disable_irq(gc, hwirq);
 }
 
 static void chv_gpio_irq_unmask(struct irq_data *d)
 {
-	chv_gpio_irq_mask_unmask(d, false);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+	gpiochip_enable_irq(gc, hwirq);
+	chv_gpio_irq_mask_unmask(gc, hwirq, false);
 }
 
 static unsigned chv_gpio_irq_startup(struct irq_data *d)
@@ -1306,17 +1312,17 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d)
 		struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
 		struct device *dev = pctrl->dev;
 		struct intel_community_context *cctx = &pctrl->context.communities[0];
-		unsigned int pin = irqd_to_hwirq(d);
+		irq_hw_number_t hwirq = irqd_to_hwirq(d);
 		irq_flow_handler_t handler;
 		unsigned long flags;
 		u32 intsel, value;
 
 		raw_spin_lock_irqsave(&chv_lock, flags);
-		intsel = chv_readl(pctrl, pin, CHV_PADCTRL0);
+		intsel = chv_readl(pctrl, hwirq, CHV_PADCTRL0);
 		intsel &= CHV_PADCTRL0_INTSEL_MASK;
 		intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
 
-		value = chv_readl(pctrl, pin, CHV_PADCTRL1);
+		value = chv_readl(pctrl, hwirq, CHV_PADCTRL1);
 		if (value & CHV_PADCTRL1_INTWAKECFG_LEVEL)
 			handler = handle_level_irq;
 		else
@@ -1324,9 +1330,9 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d)
 
 		if (cctx->intr_lines[intsel] == CHV_INVALID_HWIRQ) {
 			irq_set_handler_locked(d, handler);
-			dev_dbg(dev, "using interrupt line %u for IRQ_TYPE_NONE on pin %u\n",
-				intsel, pin);
-			cctx->intr_lines[intsel] = pin;
+			dev_dbg(dev, "using interrupt line %u for IRQ_TYPE_NONE on pin %lu\n",
+				intsel, hwirq);
+			cctx->intr_lines[intsel] = hwirq;
 		}
 		raw_spin_unlock_irqrestore(&chv_lock, flags);
 	}
@@ -1392,14 +1398,14 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
-	unsigned int pin = irqd_to_hwirq(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	unsigned long flags;
 	u32 value;
 	int ret;
 
 	raw_spin_lock_irqsave(&chv_lock, flags);
 
-	ret = chv_gpio_set_intr_line(pctrl, pin);
+	ret = chv_gpio_set_intr_line(pctrl, hwirq);
 	if (ret)
 		goto out_unlock;
 
@@ -1416,8 +1422,8 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
 	 * 2. If the pin cfg is not locked in BIOS:
 	 *	Driver programs the IntWakeCfg bits and save the mapping.
 	 */
-	if (!chv_pad_locked(pctrl, pin)) {
-		value = chv_readl(pctrl, pin, CHV_PADCTRL1);
+	if (!chv_pad_locked(pctrl, hwirq)) {
+		value = chv_readl(pctrl, hwirq, CHV_PADCTRL1);
 		value &= ~CHV_PADCTRL1_INTWAKECFG_MASK;
 		value &= ~CHV_PADCTRL1_INVRXTX_MASK;
 
@@ -1434,7 +1440,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
 				value |= CHV_PADCTRL1_INVRXTX_RXDATA;
 		}
 
-		chv_writel(pctrl, pin, CHV_PADCTRL1, value);
+		chv_writel(pctrl, hwirq, CHV_PADCTRL1, value);
 	}
 
 	if (type & IRQ_TYPE_EDGE_BOTH)
@@ -1448,6 +1454,17 @@ out_unlock:
 	return ret;
 }
 
+static const struct irq_chip chv_gpio_irq_chip = {
+	.name		= "chv-gpio",
+	.irq_startup	= chv_gpio_irq_startup,
+	.irq_ack	= chv_gpio_irq_ack,
+	.irq_mask	= chv_gpio_irq_mask,
+	.irq_unmask	= chv_gpio_irq_unmask,
+	.irq_set_type	= chv_gpio_irq_type,
+	.flags		= IRQCHIP_SKIP_SET_WAKE | IRQCHIP_IMMUTABLE,
+	GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
 static void chv_gpio_irq_handler(struct irq_desc *desc)
 {
 	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
@@ -1611,15 +1628,8 @@ static int chv_gpio_probe(struct intel_pinctrl *pctrl, int irq)
 	chip->base = -1;
 
 	pctrl->irq = irq;
-	pctrl->irqchip.name = "chv-gpio";
-	pctrl->irqchip.irq_startup = chv_gpio_irq_startup;
-	pctrl->irqchip.irq_ack = chv_gpio_irq_ack;
-	pctrl->irqchip.irq_mask = chv_gpio_irq_mask;
-	pctrl->irqchip.irq_unmask = chv_gpio_irq_unmask;
-	pctrl->irqchip.irq_set_type = chv_gpio_irq_type;
-	pctrl->irqchip.flags = IRQCHIP_SKIP_SET_WAKE;
-
-	chip->irq.chip = &pctrl->irqchip;
+
+	gpio_irq_chip_set_chip(&chip->irq, &chv_gpio_irq_chip);
 	chip->irq.init_hw = chv_gpio_irq_init_hw;
 	chip->irq.parent_handler = chv_gpio_irq_handler;
 	chip->irq.num_parents = 1;
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 826d494f3cc6..ffc045f7bf00 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -858,6 +858,9 @@ static const struct pinctrl_desc intel_pinctrl_desc = {
  * When coming through gpiolib irqchip, the GPIO offset is not
  * automatically translated to pinctrl pin number. This function can be
  * used to find out the corresponding pinctrl pin.
+ *
+ * Return: a pin number and pointers to the community and pad group, which
+ * the pin belongs to, or negative error code if translation can't be done.
  */
 static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
 			     const struct intel_community **community,
@@ -899,6 +902,8 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
  * @pin: pin number
  *
  * Translate the pin number of pinctrl to GPIO offset
+ *
+ * Return: a GPIO offset, or negative error code if translation can't be done.
  */
 static __maybe_unused int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
 {
@@ -1039,15 +1044,14 @@ static void intel_gpio_irq_ack(struct irq_data *d)
 	}
 }
 
-static void intel_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
+static void intel_gpio_irq_mask_unmask(struct gpio_chip *gc, irq_hw_number_t hwirq, bool mask)
 {
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
 	const struct intel_community *community;
 	const struct intel_padgroup *padgrp;
 	int pin;
 
-	pin = intel_gpio_to_pin(pctrl, irqd_to_hwirq(d), &community, &padgrp);
+	pin = intel_gpio_to_pin(pctrl, hwirq, &community, &padgrp);
 	if (pin >= 0) {
 		unsigned int gpp, gpp_offset;
 		unsigned long flags;
@@ -1077,12 +1081,20 @@ static void intel_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
 
 static void intel_gpio_irq_mask(struct irq_data *d)
 {
-	intel_gpio_irq_mask_unmask(d, true);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+	intel_gpio_irq_mask_unmask(gc, hwirq, true);
+	gpiochip_disable_irq(gc, hwirq);
 }
 
 static void intel_gpio_irq_unmask(struct irq_data *d)
 {
-	intel_gpio_irq_mask_unmask(d, false);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+	gpiochip_enable_irq(gc, hwirq);
+	intel_gpio_irq_mask_unmask(gc, hwirq, false);
 }
 
 static int intel_gpio_irq_type(struct irq_data *d, unsigned int type)
@@ -1157,6 +1169,17 @@ static int intel_gpio_irq_wake(struct irq_data *d, unsigned int on)
 	return 0;
 }
 
+static const struct irq_chip intel_gpio_irq_chip = {
+	.name = "intel-gpio",
+	.irq_ack = intel_gpio_irq_ack,
+	.irq_mask = intel_gpio_irq_mask,
+	.irq_unmask = intel_gpio_irq_unmask,
+	.irq_set_type = intel_gpio_irq_type,
+	.irq_set_wake = intel_gpio_irq_wake,
+	.flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_IMMUTABLE,
+	GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
 static int intel_gpio_community_irq_handler(struct intel_pinctrl *pctrl,
 					    const struct intel_community *community)
 {
@@ -1319,15 +1342,6 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
 	pctrl->chip.add_pin_ranges = intel_gpio_add_pin_ranges;
 	pctrl->irq = irq;
 
-	/* Setup IRQ chip */
-	pctrl->irqchip.name = dev_name(pctrl->dev);
-	pctrl->irqchip.irq_ack = intel_gpio_irq_ack;
-	pctrl->irqchip.irq_mask = intel_gpio_irq_mask;
-	pctrl->irqchip.irq_unmask = intel_gpio_irq_unmask;
-	pctrl->irqchip.irq_set_type = intel_gpio_irq_type;
-	pctrl->irqchip.irq_set_wake = intel_gpio_irq_wake;
-	pctrl->irqchip.flags = IRQCHIP_MASK_ON_SUSPEND;
-
 	/*
 	 * On some platforms several GPIO controllers share the same interrupt
 	 * line.
@@ -1340,8 +1354,9 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
 		return ret;
 	}
 
+	/* Setup IRQ chip */
 	girq = &pctrl->chip.irq;
-	girq->chip = &pctrl->irqchip;
+	gpio_irq_chip_set_chip(girq, &intel_gpio_irq_chip);
 	/* This will let us handle the IRQ in the driver */
 	girq->parent_handler = NULL;
 	girq->num_parents = 0;
diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
index c4fef03b663f..710341bb67cc 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.h
+++ b/drivers/pinctrl/intel/pinctrl-intel.h
@@ -223,7 +223,6 @@ struct intel_pinctrl_context {
  * @pctldesc: Pin controller description
  * @pctldev: Pointer to the pin controller device
  * @chip: GPIO chip in this pin controller
- * @irqchip: IRQ chip in this pin controller
  * @soc: SoC/PCH specific pin configuration data
  * @communities: All communities in this pin controller
  * @ncommunities: Number of communities in this pin controller
@@ -236,7 +235,6 @@ struct intel_pinctrl {
 	struct pinctrl_desc pctldesc;
 	struct pinctrl_dev *pctldev;
 	struct gpio_chip chip;
-	struct irq_chip irqchip;
 	const struct intel_pinctrl_soc_data *soc;
 	struct intel_community *communities;
 	size_t ncommunities;
diff --git a/drivers/pinctrl/intel/pinctrl-lynxpoint.c b/drivers/pinctrl/intel/pinctrl-lynxpoint.c
index 561fa322b0b4..4fb39eb30902 100644
--- a/drivers/pinctrl/intel/pinctrl-lynxpoint.c
+++ b/drivers/pinctrl/intel/pinctrl-lynxpoint.c
@@ -663,7 +663,7 @@ static void lp_irq_ack(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *lg = gpiochip_get_data(gc);
-	u32 hwirq = irqd_to_hwirq(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	void __iomem *reg = lp_gpio_reg(&lg->chip, hwirq, LP_INT_STAT);
 	unsigned long flags;
 
@@ -684,10 +684,12 @@ static void lp_irq_enable(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *lg = gpiochip_get_data(gc);
-	u32 hwirq = irqd_to_hwirq(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	void __iomem *reg = lp_gpio_reg(&lg->chip, hwirq, LP_INT_ENABLE);
 	unsigned long flags;
 
+	gpiochip_enable_irq(gc, hwirq);
+
 	raw_spin_lock_irqsave(&lg->lock, flags);
 	iowrite32(ioread32(reg) | BIT(hwirq % 32), reg);
 	raw_spin_unlock_irqrestore(&lg->lock, flags);
@@ -697,30 +699,33 @@ static void lp_irq_disable(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *lg = gpiochip_get_data(gc);
-	u32 hwirq = irqd_to_hwirq(d);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	void __iomem *reg = lp_gpio_reg(&lg->chip, hwirq, LP_INT_ENABLE);
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&lg->lock, flags);
 	iowrite32(ioread32(reg) & ~BIT(hwirq % 32), reg);
 	raw_spin_unlock_irqrestore(&lg->lock, flags);
+
+	gpiochip_disable_irq(gc, hwirq);
 }
 
 static int lp_irq_set_type(struct irq_data *d, unsigned int type)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct intel_pinctrl *lg = gpiochip_get_data(gc);
-	u32 hwirq = irqd_to_hwirq(d);
-	void __iomem *reg = lp_gpio_reg(&lg->chip, hwirq, LP_CONFIG1);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 	unsigned long flags;
+	void __iomem *reg;
 	u32 value;
 
-	if (hwirq >= lg->chip.ngpio)
+	reg = lp_gpio_reg(&lg->chip, hwirq, LP_CONFIG1);
+	if (!reg)
 		return -EINVAL;
 
 	/* Fail if BIOS reserved pin for ACPI use */
 	if (lp_gpio_acpi_use(lg, hwirq)) {
-		dev_err(lg->dev, "pin %u can't be used as IRQ\n", hwirq);
+		dev_err(lg->dev, "pin %lu can't be used as IRQ\n", hwirq);
 		return -EBUSY;
 	}
 
@@ -755,7 +760,7 @@ static int lp_irq_set_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
-static struct irq_chip lp_irqchip = {
+static const struct irq_chip lp_irqchip = {
 	.name = "LP-GPIO",
 	.irq_ack = lp_irq_ack,
 	.irq_mask = lp_irq_mask,
@@ -763,7 +768,8 @@ static struct irq_chip lp_irqchip = {
 	.irq_enable = lp_irq_enable,
 	.irq_disable = lp_irq_disable,
 	.irq_set_type = lp_irq_set_type,
-	.flags = IRQCHIP_SKIP_SET_WAKE,
+	.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_IMMUTABLE,
+	GPIOCHIP_IRQ_RESOURCE_HELPERS,
 };
 
 static int lp_gpio_irq_init_hw(struct gpio_chip *chip)
@@ -884,7 +890,7 @@ static int lp_gpio_probe(struct platform_device *pdev)
 		struct gpio_irq_chip *girq;
 
 		girq = &gc->irq;
-		girq->chip = &lp_irqchip;
+		gpio_irq_chip_set_chip(girq, &lp_irqchip);
 		girq->init_hw = lp_gpio_irq_init_hw;
 		girq->parent_handler = lp_gpio_irq_handler;
 		girq->num_parents = 1;