Merge tag 'gpio-updates-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "We have a single new driver, new features in others and some cleanups
  all over the place.

  Nothing really stands out and it is all relatively small.

   - new driver: gpio-modepin (plus relevant change in zynqmp firmware)

   - add interrupt support to gpio-virtio

   - enable the 'gpio-line-names' property in the DT bindings for
     gpio-rockchip

   - use the subsystem helpers where applicable in gpio-uniphier instead
     of accessing IRQ structures directly

   - code shrink in gpio-xilinx

   - add interrupt to gpio-mlxbf2 (and include the removal of custom
     interrupt code from the mellanox ethernet driver)

   - support multiple interrupts per bank in gpio-tegra186 (and force
     one interrupt per bank in older models)

   - fix GPIO line IRQ offset calculation in gpio-realtek-otto

   - drop unneeded MODULE_ALIAS expansions in multiple drivers

   - code cleanup in gpio-aggregator

   - minor improvements in gpio-max730x and gpio-mc33880

   - Kconfig cleanups"

* tag 'gpio-updates-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  virtio_gpio: drop packed attribute
  gpio: virtio: Add IRQ support
  gpio: realtek-otto: fix GPIO line IRQ offset
  gpio: clean up Kconfig file
  net: mellanox: mlxbf_gige: Replace non-standard interrupt handling
  gpio: mlxbf2: Introduce IRQ support
  gpio: mc33880: Drop if with an always false condition
  gpio: max730x: Make __max730x_remove() return void
  gpio: aggregator: Wrap access to gpiochip_fwd.tmp[]
  gpio: modepin: Add driver support for modepin GPIO controller
  dt-bindings: gpio: zynqmp: Add binding documentation for modepin
  firmware: zynqmp: Add MMIO read and write support for PS_MODE pin
  gpio: tps65218: drop unneeded MODULE_ALIAS
  gpio: max77620: drop unneeded MODULE_ALIAS
  gpio: xilinx: simplify getting .driver_data
  gpio: tegra186: Support multiple interrupts per bank
  gpio: tegra186: Force one interrupt per bank
  gpio: uniphier: Use helper functions to get private data from IRQ data
  gpio: uniphier: Use helper function to get IRQ hardware number
  dt-bindings: gpio: add gpio-line-names to rockchip,gpio-bank.yaml

Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml

@@ -29,6 +29,8 @@ properties:
 
   gpio-controller: true
 
+  gpio-line-names: true
+
   "#gpio-cells":
     const: 2
 

Documentation/devicetree/bindings/gpio/xlnx,zynqmp-gpio-modepin.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/gpio/xlnx,zynqmp-gpio-modepin.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: ZynqMP Mode Pin GPIO controller
+
+description:
+  PS_MODE is 4-bits boot mode pins sampled on POR deassertion. Mode Pin
+  GPIO controller with configurable from numbers of pins (from 0 to 3 per
+  PS_MODE). Every pin can be configured as input/output.
+
+maintainers:
+  - Piyush Mehta <piyush.mehta@xilinx.com>
+
+properties:
+  compatible:
+    const: xlnx,zynqmp-gpio-modepin
+
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
+required:
+  - compatible
+  - gpio-controller
+  - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    zynqmp-firmware {
+        gpio {
+            compatible = "xlnx,zynqmp-gpio-modepin";
+            gpio-controller;
+            #gpio-cells = <2>;
+        };
+    };
+
+...

drivers/firmware/xilinx/zynqmp.c

@@ -28,6 +28,13 @@
 /* Max HashMap Order for PM API feature check (1<<7 = 128) */
 #define PM_API_FEATURE_CHECK_MAX_ORDER  7
 
+/* CRL registers and bitfields */
+#define CRL_APB_BASE			0xFF5E0000U
+/* BOOT_PIN_CTRL- Used to control the mode pins after boot */
+#define CRL_APB_BOOT_PIN_CTRL		(CRL_APB_BASE + (0x250U))
+/* BOOT_PIN_CTRL_MASK- out_val[11:8], out_en[3:0] */
+#define CRL_APB_BOOTPIN_CTRL_MASK	0xF0FU
+
 static bool feature_check_enabled;
 static DEFINE_HASHTABLE(pm_api_features_map, PM_API_FEATURE_CHECK_MAX_ORDER);
 
@@ -942,6 +949,45 @@ int zynqmp_pm_pinctrl_set_config(const u32 pin, const u32 param,
 }
 EXPORT_SYMBOL_GPL(zynqmp_pm_pinctrl_set_config);
 
+/**
+ * zynqmp_pm_bootmode_read() - PM Config API for read bootpin status
+ * @ps_mode: Returned output value of ps_mode
+ *
+ * This API function is to be used for notify the power management controller
+ * to read bootpin status.
+ *
+ * Return: status, either success or error+reason
+ */
+unsigned int zynqmp_pm_bootmode_read(u32 *ps_mode)
+{
+	unsigned int ret;
+	u32 ret_payload[PAYLOAD_ARG_CNT];
+
+	ret = zynqmp_pm_invoke_fn(PM_MMIO_READ, CRL_APB_BOOT_PIN_CTRL, 0,
+				  0, 0, ret_payload);
+
+	*ps_mode = ret_payload[1];
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_bootmode_read);
+
+/**
+ * zynqmp_pm_bootmode_write() - PM Config API for Configure bootpin
+ * @ps_mode: Value to be written to the bootpin ctrl register
+ *
+ * This API function is to be used for notify the power management controller
+ * to configure bootpin.
+ *
+ * Return: Returns status, either success or error+reason
+ */
+int zynqmp_pm_bootmode_write(u32 ps_mode)
+{
+	return zynqmp_pm_invoke_fn(PM_MMIO_WRITE, CRL_APB_BOOT_PIN_CTRL,
+				   CRL_APB_BOOTPIN_CTRL_MASK, ps_mode, 0, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_bootmode_write);
+
 /**
  * zynqmp_pm_init_finalize() - PM call to inform firmware that the caller
  *			       master has initialized its own power management

drivers/gpio/Makefile

@@ -184,3 +184,4 @@ obj-$(CONFIG_GPIO_XRA1403)		+= gpio-xra1403.o
 obj-$(CONFIG_GPIO_XTENSA)		+= gpio-xtensa.o
 obj-$(CONFIG_GPIO_ZEVIO)		+= gpio-zevio.o
 obj-$(CONFIG_GPIO_ZYNQ)			+= gpio-zynq.o
+obj-$(CONFIG_GPIO_ZYNQMP_MODEPIN)	+= gpio-zynqmp-modepin.o

drivers/gpio/gpio-aggregator.c

@@ -247,6 +247,11 @@ struct gpiochip_fwd {
 	unsigned long tmp[];		/* values and descs for multiple ops */
 };
 
+#define fwd_tmp_values(fwd)	&(fwd)->tmp[0]
+#define fwd_tmp_descs(fwd)	(void *)&(fwd)->tmp[BITS_TO_LONGS((fwd)->chip.ngpio)]
+
+#define fwd_tmp_size(ngpios)	(BITS_TO_LONGS((ngpios)) + (ngpios))
+
 static int gpio_fwd_get_direction(struct gpio_chip *chip, unsigned int offset)
 {
 	struct gpiochip_fwd *fwd = gpiochip_get_data(chip);
@@ -279,15 +284,11 @@ static int gpio_fwd_get(struct gpio_chip *chip, unsigned int offset)
 static int gpio_fwd_get_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
 				 unsigned long *bits)
 {
-	struct gpio_desc **descs;
-	unsigned long *values;
+	struct gpio_desc **descs = fwd_tmp_descs(fwd);
+	unsigned long *values = fwd_tmp_values(fwd);
 	unsigned int i, j = 0;
 	int error;
 
-	/* Both values bitmap and desc pointers are stored in tmp[] */
-	values = &fwd->tmp[0];
-	descs = (void *)&fwd->tmp[BITS_TO_LONGS(fwd->chip.ngpio)];
-
 	bitmap_clear(values, 0, fwd->chip.ngpio);
 	for_each_set_bit(i, mask, fwd->chip.ngpio)
 		descs[j++] = fwd->descs[i];
@@ -333,14 +334,10 @@ static void gpio_fwd_set(struct gpio_chip *chip, unsigned int offset, int value)
 static void gpio_fwd_set_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
 				  unsigned long *bits)
 {
-	struct gpio_desc **descs;
-	unsigned long *values;
+	struct gpio_desc **descs = fwd_tmp_descs(fwd);
+	unsigned long *values = fwd_tmp_values(fwd);
 	unsigned int i, j = 0;
 
-	/* Both values bitmap and desc pointers are stored in tmp[] */
-	values = &fwd->tmp[0];
-	descs = (void *)&fwd->tmp[BITS_TO_LONGS(fwd->chip.ngpio)];
-
 	for_each_set_bit(i, mask, fwd->chip.ngpio) {
 		__assign_bit(j, values, test_bit(i, bits));
 		descs[j++] = fwd->descs[i];
@@ -398,8 +395,8 @@ static struct gpiochip_fwd *gpiochip_fwd_create(struct device *dev,
 	unsigned int i;
 	int error;
 
-	fwd = devm_kzalloc(dev, struct_size(fwd, tmp,
-			   BITS_TO_LONGS(ngpios) + ngpios), GFP_KERNEL);
+	fwd = devm_kzalloc(dev, struct_size(fwd, tmp, fwd_tmp_size(ngpios)),
+			   GFP_KERNEL);
 	if (!fwd)
 		return ERR_PTR(-ENOMEM);
 

drivers/gpio/gpio-max7300.c

@@ -50,7 +50,9 @@ static int max7300_probe(struct i2c_client *client,
 
 static int max7300_remove(struct i2c_client *client)
 {
-	return __max730x_remove(&client->dev);
+	__max730x_remove(&client->dev);
+
+	return 0;
 }
 
 static const struct i2c_device_id max7300_id[] = {

drivers/gpio/gpio-max7301.c

@@ -66,7 +66,9 @@ static int max7301_probe(struct spi_device *spi)
 
 static int max7301_remove(struct spi_device *spi)
 {
-	return __max730x_remove(&spi->dev);
+	__max730x_remove(&spi->dev);
+
+	return 0;
 }
 
 static const struct spi_device_id max7301_id[] = {

drivers/gpio/gpio-max730x.c

@@ -220,18 +220,14 @@ int __max730x_probe(struct max7301 *ts)
 }
 EXPORT_SYMBOL_GPL(__max730x_probe);
 
-int __max730x_remove(struct device *dev)
+void __max730x_remove(struct device *dev)
 {
 	struct max7301 *ts = dev_get_drvdata(dev);
 
-	if (ts == NULL)
-		return -ENODEV;
-
 	/* Power down the chip and disable IRQ output */
 	ts->write(dev, 0x04, 0x00);
 	gpiochip_remove(&ts->chip);
 	mutex_destroy(&ts->lock);
-	return 0;
 }
 EXPORT_SYMBOL_GPL(__max730x_remove);
 

drivers/gpio/gpio-max77620.c

@@ -365,5 +365,4 @@ module_platform_driver(max77620_gpio_driver);
 MODULE_DESCRIPTION("GPIO interface for MAX77620 and MAX20024 PMIC");
 MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
 MODULE_AUTHOR("Chaitanya Bandi <bandik@nvidia.com>");
-MODULE_ALIAS("platform:max77620-gpio");
 MODULE_LICENSE("GPL v2");

drivers/gpio/gpio-mc33880.c

@@ -139,8 +139,6 @@ static int mc33880_remove(struct spi_device *spi)
 	struct mc33880 *mc;
 
 	mc = spi_get_drvdata(spi);
-	if (!mc)
-		return -ENODEV;
 
 	gpiochip_remove(&mc->chip);
 	mutex_destroy(&mc->lock);

drivers/gpio/gpio-mlxbf2.c

 // SPDX-License-Identifier: GPL-2.0
 
+/*
+ * Copyright (C) 2020-2021 NVIDIA CORPORATION & AFFILIATES
+ */
+
 #include <linux/bitfield.h>
 #include <linux/bitops.h>
 #include <linux/device.h>
 #include <linux/gpio/driver.h>
+#include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/ioport.h>
 #include <linux/kernel.h>
@@ -43,9 +48,14 @@
 #define YU_GPIO_MODE0			0x0c
 #define YU_GPIO_DATASET			0x14
 #define YU_GPIO_DATACLEAR		0x18
+#define YU_GPIO_CAUSE_RISE_EN		0x44
+#define YU_GPIO_CAUSE_FALL_EN		0x48
 #define YU_GPIO_MODE1_CLEAR		0x50
 #define YU_GPIO_MODE0_SET		0x54
 #define YU_GPIO_MODE0_CLEAR		0x58
+#define YU_GPIO_CAUSE_OR_CAUSE_EVTEN0	0x80
+#define YU_GPIO_CAUSE_OR_EVTEN0		0x94
+#define YU_GPIO_CAUSE_OR_CLRCAUSE	0x98
 
 struct mlxbf2_gpio_context_save_regs {
 	u32 gpio_mode0;
@@ -55,6 +65,7 @@ struct mlxbf2_gpio_context_save_regs {
 /* BlueField-2 gpio block context structure. */
 struct mlxbf2_gpio_context {
 	struct gpio_chip gc;
+	struct irq_chip irq_chip;
 
 	/* YU GPIO blocks address */
 	void __iomem *gpio_io;
@@ -218,15 +229,114 @@ static int mlxbf2_gpio_direction_output(struct gpio_chip *chip,
 	return ret;
 }
 
+static void mlxbf2_gpio_irq_enable(struct irq_data *irqd)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+	struct mlxbf2_gpio_context *gs = gpiochip_get_data(gc);
+	int offset = irqd_to_hwirq(irqd);
+	unsigned long flags;
+	u32 val;
+
+	spin_lock_irqsave(&gs->gc.bgpio_lock, flags);
+	val = readl(gs->gpio_io + YU_GPIO_CAUSE_OR_CLRCAUSE);
+	val |= BIT(offset);
+	writel(val, gs->gpio_io + YU_GPIO_CAUSE_OR_CLRCAUSE);
+
+	val = readl(gs->gpio_io + YU_GPIO_CAUSE_OR_EVTEN0);
+	val |= BIT(offset);
+	writel(val, gs->gpio_io + YU_GPIO_CAUSE_OR_EVTEN0);
+	spin_unlock_irqrestore(&gs->gc.bgpio_lock, flags);
+}
+
+static void mlxbf2_gpio_irq_disable(struct irq_data *irqd)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+	struct mlxbf2_gpio_context *gs = gpiochip_get_data(gc);
+	int offset = irqd_to_hwirq(irqd);
+	unsigned long flags;
+	u32 val;
+
+	spin_lock_irqsave(&gs->gc.bgpio_lock, flags);
+	val = readl(gs->gpio_io + YU_GPIO_CAUSE_OR_EVTEN0);
+	val &= ~BIT(offset);
+	writel(val, gs->gpio_io + YU_GPIO_CAUSE_OR_EVTEN0);
+	spin_unlock_irqrestore(&gs->gc.bgpio_lock, flags);
+}
+
+static irqreturn_t mlxbf2_gpio_irq_handler(int irq, void *ptr)
+{
+	struct mlxbf2_gpio_context *gs = ptr;
+	struct gpio_chip *gc = &gs->gc;
+	unsigned long pending;
+	u32 level;
+
+	pending = readl(gs->gpio_io + YU_GPIO_CAUSE_OR_CAUSE_EVTEN0);
+	writel(pending, gs->gpio_io + YU_GPIO_CAUSE_OR_CLRCAUSE);
+
+	for_each_set_bit(level, &pending, gc->ngpio) {
+		int gpio_irq = irq_find_mapping(gc->irq.domain, level);
+		generic_handle_irq(gpio_irq);
+	}
+
+	return IRQ_RETVAL(pending);
+}
+
+static int
+mlxbf2_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+	struct mlxbf2_gpio_context *gs = gpiochip_get_data(gc);
+	int offset = irqd_to_hwirq(irqd);
+	unsigned long flags;
+	bool fall = false;
+	bool rise = false;
+	u32 val;
+
+	switch (type & IRQ_TYPE_SENSE_MASK) {
+	case IRQ_TYPE_EDGE_BOTH:
+		fall = true;
+		rise = true;
+		break;
+	case IRQ_TYPE_EDGE_RISING:
+		rise = true;
+		break;
+	case IRQ_TYPE_EDGE_FALLING:
+		fall = true;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&gs->gc.bgpio_lock, flags);
+	if (fall) {
+		val = readl(gs->gpio_io + YU_GPIO_CAUSE_FALL_EN);
+		val |= BIT(offset);
+		writel(val, gs->gpio_io + YU_GPIO_CAUSE_FALL_EN);
+	}
+
+	if (rise) {
+		val = readl(gs->gpio_io + YU_GPIO_CAUSE_RISE_EN);
+		val |= BIT(offset);
+		writel(val, gs->gpio_io + YU_GPIO_CAUSE_RISE_EN);
+	}
+	spin_unlock_irqrestore(&gs->gc.bgpio_lock, flags);
+
+	return 0;
+}
+
 /* BlueField-2 GPIO driver initialization routine. */
 static int
 mlxbf2_gpio_probe(struct platform_device *pdev)
 {
 	struct mlxbf2_gpio_context *gs;
 	struct device *dev = &pdev->dev;
+	struct gpio_irq_chip *girq;
 	struct gpio_chip *gc;
 	unsigned int npins;
-	int ret;
+	const char *name;
+	int ret, irq;
+
+	name = dev_name(dev);
 
 	gs = devm_kzalloc(dev, sizeof(*gs), GFP_KERNEL);
 	if (!gs)
@@ -266,6 +376,34 @@ mlxbf2_gpio_probe(struct platform_device *pdev)
 	gc->ngpio = npins;
 	gc->owner = THIS_MODULE;
 
+	irq = platform_get_irq(pdev, 0);
+	if (irq >= 0) {
+		gs->irq_chip.name = name;
+		gs->irq_chip.irq_set_type = mlxbf2_gpio_irq_set_type;
+		gs->irq_chip.irq_enable = mlxbf2_gpio_irq_enable;
+		gs->irq_chip.irq_disable = mlxbf2_gpio_irq_disable;
+
+		girq = &gs->gc.irq;
+		girq->chip = &gs->irq_chip;
+		girq->handler = handle_simple_irq;
+		girq->default_type = IRQ_TYPE_NONE;
+		/* This will let us handle the parent IRQ in the driver */
+		girq->num_parents = 0;
+		girq->parents = NULL;
+		girq->parent_handler = NULL;
+
+		/*
+		 * Directly request the irq here instead of passing
+		 * a flow-handler because the irq is shared.
+		 */
+		ret = devm_request_irq(dev, irq, mlxbf2_gpio_irq_handler,
+				       IRQF_SHARED, name, gs);
+		if (ret) {
+			dev_err(dev, "failed to request IRQ");
+			return ret;
+		}
+	}
+
 	platform_set_drvdata(pdev, gs);
 
 	ret = devm_gpiochip_add_data(dev, &gs->gc, gs);
@@ -320,5 +458,5 @@ static struct platform_driver mlxbf2_gpio_driver = {
 module_platform_driver(mlxbf2_gpio_driver);
 
 MODULE_DESCRIPTION("Mellanox BlueField-2 GPIO Driver");
-MODULE_AUTHOR("Mellanox Technologies");
+MODULE_AUTHOR("Asmaa Mnebhi <asmaa@nvidia.com>");
 MODULE_LICENSE("GPL v2");

drivers/gpio/gpio-realtek-otto.c

@@ -205,7 +205,7 @@ static void realtek_gpio_irq_handler(struct irq_desc *desc)
 		status = realtek_gpio_read_isr(ctrl, lines_done / 8);
 		port_pin_count = min(gc->ngpio - lines_done, 8U);
 		for_each_set_bit(offset, &status, port_pin_count)
-			generic_handle_domain_irq(gc->irq.domain, offset);
+			generic_handle_domain_irq(gc->irq.domain, offset + lines_done);
 	}
 
 	chained_irq_exit(irq_chip, desc);

drivers/gpio/gpio-tegra186.c

@@ -69,6 +69,8 @@ struct tegra_gpio_soc {
 	const char *name;
 	unsigned int instance;
 
+	unsigned int num_irqs_per_bank;
+
 	const struct tegra186_pin_range *pin_ranges;
 	unsigned int num_pin_ranges;
 	const char *pinmux;
@@ -81,6 +83,8 @@ struct tegra_gpio {
 	unsigned int *irq;
 
 	const struct tegra_gpio_soc *soc;
+	unsigned int num_irqs_per_bank;
+	unsigned int num_banks;
 
 	void __iomem *secure;
 	void __iomem *base;
@@ -450,7 +454,7 @@ static void tegra186_gpio_irq(struct irq_desc *desc)
 	struct irq_domain *domain = gpio->gpio.irq.domain;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int parent = irq_desc_get_irq(desc);
-	unsigned int i, offset = 0;
+	unsigned int i, j, offset = 0;
 
 	chained_irq_enter(chip, desc);
 
@@ -463,7 +467,12 @@ static void tegra186_gpio_irq(struct irq_desc *desc)
 		base = gpio->base + port->bank * 0x1000 + port->port * 0x200;
 
 		/* skip ports that are not associated with this bank */
-		if (parent != gpio->irq[port->bank])
+		for (j = 0; j < gpio->num_irqs_per_bank; j++) {
+			if (parent == gpio->irq[port->bank * gpio->num_irqs_per_bank + j])
+				break;
+		}
+
+		if (j == gpio->num_irqs_per_bank)
 			goto skip;
 
 		value = readl(base + TEGRA186_GPIO_INTERRUPT_STATUS(1));
@@ -565,6 +574,7 @@ static const struct of_device_id tegra186_pmc_of_match[] = {
 
 static void tegra186_gpio_init_route_mapping(struct tegra_gpio *gpio)
 {
+	struct device *dev = gpio->gpio.parent;
 	unsigned int i, j;
 	u32 value;
 
@@ -583,17 +593,60 @@ static void tegra186_gpio_init_route_mapping(struct tegra_gpio *gpio)
 		 */
 		if ((value & TEGRA186_GPIO_CTL_SCR_SEC_REN) == 0 &&
 		    (value & TEGRA186_GPIO_CTL_SCR_SEC_WEN) == 0) {
-			for (j = 0; j < 8; j++) {
+			/*
+			 * On Tegra194 and later, each pin can be routed to one or more
+			 * interrupts.
+			 */
+			for (j = 0; j < gpio->num_irqs_per_bank; j++) {
+				dev_dbg(dev, "programming default interrupt routing for port %s\n",
+					port->name);
+
 				offset = TEGRA186_GPIO_INT_ROUTE_MAPPING(p, j);
 
-				value = readl(base + offset);
-				value = BIT(port->pins) - 1;
-				writel(value, base + offset);
+				/*
+				 * By default we only want to route GPIO pins to IRQ 0. This works
+				 * only under the assumption that we're running as the host kernel
+				 * and hence all GPIO pins are owned by Linux.
+				 *
+				 * For cases where Linux is the guest OS, the hypervisor will have
+				 * to configure the interrupt routing and pass only the valid
+				 * interrupts via device tree.
+				 */
+				if (j == 0) {
+					value = readl(base + offset);
+					value = BIT(port->pins) - 1;
+					writel(value, base + offset);
+				}
 			}
 		}
 	}
 }
 
+static unsigned int tegra186_gpio_irqs_per_bank(struct tegra_gpio *gpio)
+{
+	struct device *dev = gpio->gpio.parent;
+
+	if (gpio->num_irq > gpio->num_banks) {
+		if (gpio->num_irq % gpio->num_banks != 0)
+			goto error;
+	}
+
+	if (gpio->num_irq < gpio->num_banks)
+		goto error;
+
+	gpio->num_irqs_per_bank = gpio->num_irq / gpio->num_banks;
+
+	if (gpio->num_irqs_per_bank > gpio->soc->num_irqs_per_bank)
+		goto error;
+
+	return 0;
+
+error:
+	dev_err(dev, "invalid number of interrupts (%u) for %u banks\n",
+		gpio->num_irq, gpio->num_banks);
+	return -EINVAL;
+}
+
 static int tegra186_gpio_probe(struct platform_device *pdev)
 {
 	unsigned int i, j, offset;
@@ -608,7 +661,17 @@ static int tegra186_gpio_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	gpio->soc = device_get_match_data(&pdev->dev);
+	gpio->gpio.label = gpio->soc->name;
+	gpio->gpio.parent = &pdev->dev;
+
+	/* count the number of banks in the controller */
+	for (i = 0; i < gpio->soc->num_ports; i++)
+		if (gpio->soc->ports[i].bank > gpio->num_banks)
+			gpio->num_banks = gpio->soc->ports[i].bank;
+
+	gpio->num_banks++;
 
+	/* get register apertures */
 	gpio->secure = devm_platform_ioremap_resource_byname(pdev, "security");
 	if (IS_ERR(gpio->secure)) {
 		gpio->secure = devm_platform_ioremap_resource(pdev, 0);
@@ -629,6 +692,10 @@ static int tegra186_gpio_probe(struct platform_device *pdev)
 
 	gpio->num_irq = err;
 
+	err = tegra186_gpio_irqs_per_bank(gpio);
+	if (err < 0)
+		return err;
+
 	gpio->irq = devm_kcalloc(&pdev->dev, gpio->num_irq, sizeof(*gpio->irq),
 				 GFP_KERNEL);
 	if (!gpio->irq)
@@ -642,9 +709,6 @@ static int tegra186_gpio_probe(struct platform_device *pdev)
 		gpio->irq[i] = err;
 	}
 
-	gpio->gpio.label = gpio->soc->name;
-	gpio->gpio.parent = &pdev->dev;
-
 	gpio->gpio.request = gpiochip_generic_request;
 	gpio->gpio.free = gpiochip_generic_free;
 	gpio->gpio.get_direction = tegra186_gpio_get_direction;
@@ -708,7 +772,31 @@ static int tegra186_gpio_probe(struct platform_device *pdev)
 	irq->parent_handler = tegra186_gpio_irq;
 	irq->parent_handler_data = gpio;
 	irq->num_parents = gpio->num_irq;
-	irq->parents = gpio->irq;
+
+	/*
+	 * To simplify things, use a single interrupt per bank for now. Some
+	 * chips support up to 8 interrupts per bank, which can be useful to
+	 * distribute the load and decrease the processing latency for GPIOs
+	 * but it also requires a more complicated interrupt routing than we
+	 * currently program.
+	 */
+	if (gpio->num_irqs_per_bank > 1) {
+		irq->parents = devm_kcalloc(&pdev->dev, gpio->num_banks,
+					    sizeof(*irq->parents), GFP_KERNEL);
+		if (!irq->parents)
+			return -ENOMEM;
+
+		for (i = 0; i < gpio->num_banks; i++)
+			irq->parents[i] = gpio->irq[i * gpio->num_irqs_per_bank];
+
+		irq->num_parents = gpio->num_banks;
+	} else {
+		irq->num_parents = gpio->num_irq;
+		irq->parents = gpio->irq;
+	}
+
+	if (gpio->soc->num_irqs_per_bank > 1)
+		tegra186_gpio_init_route_mapping(gpio);
 
 	np = of_find_matching_node(NULL, tegra186_pmc_of_match);
 	if (np) {
@@ -719,8 +807,6 @@ static int tegra186_gpio_probe(struct platform_device *pdev)
 			return -EPROBE_DEFER;
 	}
 
-	tegra186_gpio_init_route_mapping(gpio);
-
 	irq->map = devm_kcalloc(&pdev->dev, gpio->gpio.ngpio,
 				sizeof(*irq->map), GFP_KERNEL);
 	if (!irq->map)
@@ -777,6 +863,7 @@ static const struct tegra_gpio_soc tegra186_main_soc = {
 	.ports = tegra186_main_ports,
 	.name = "tegra186-gpio",
 	.instance = 0,
+	.num_irqs_per_bank = 1,
 };
 
 #define TEGRA186_AON_GPIO_PORT(_name, _bank, _port, _pins)	\
@@ -803,6 +890,7 @@ static const struct tegra_gpio_soc tegra186_aon_soc = {
 	.ports = tegra186_aon_ports,
 	.name = "tegra186-gpio-aon",
 	.instance = 1,
+	.num_irqs_per_bank = 1,
 };
 
 #define TEGRA194_MAIN_GPIO_PORT(_name, _bank, _port, _pins)	\
@@ -854,6 +942,7 @@ static const struct tegra_gpio_soc tegra194_main_soc = {
 	.ports = tegra194_main_ports,
 	.name = "tegra194-gpio",
 	.instance = 0,
+	.num_irqs_per_bank = 8,
 	.num_pin_ranges = ARRAY_SIZE(tegra194_main_pin_ranges),
 	.pin_ranges = tegra194_main_pin_ranges,
 	.pinmux = "nvidia,tegra194-pinmux",
@@ -880,6 +969,7 @@ static const struct tegra_gpio_soc tegra194_aon_soc = {
 	.ports = tegra194_aon_ports,
 	.name = "tegra194-gpio-aon",
 	.instance = 1,
+	.num_irqs_per_bank = 8,
 };
 
 static const struct of_device_id tegra186_gpio_of_match[] = {

drivers/gpio/gpio-tps65218.c

@@ -230,4 +230,3 @@ module_platform_driver(tps65218_gpio_driver);
 MODULE_AUTHOR("Nicolas Saenz Julienne <nicolassaenzj@gmail.com>");
 MODULE_DESCRIPTION("GPO interface for TPS65218 PMICs");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:tps65218-gpio");

drivers/gpio/gpio-uniphier.c

@@ -179,8 +179,8 @@ static int uniphier_gpio_to_irq(struct gpio_chip *chip, unsigned int offset)
 
 static void uniphier_gpio_irq_mask(struct irq_data *data)
 {
-	struct uniphier_gpio_priv *priv = data->chip_data;
-	u32 mask = BIT(data->hwirq);
+	struct uniphier_gpio_priv *priv = irq_data_get_irq_chip_data(data);
+	u32 mask = BIT(irqd_to_hwirq(data));
 
 	uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, 0);
 
@@ -189,8 +189,8 @@ static void uniphier_gpio_irq_mask(struct irq_data *data)
 
 static void uniphier_gpio_irq_unmask(struct irq_data *data)
 {
-	struct uniphier_gpio_priv *priv = data->chip_data;
-	u32 mask = BIT(data->hwirq);
+	struct uniphier_gpio_priv *priv = irq_data_get_irq_chip_data(data);
+	u32 mask = BIT(irqd_to_hwirq(data));
 
 	uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, mask);
 
@@ -199,8 +199,8 @@ static void uniphier_gpio_irq_unmask(struct irq_data *data)
 
 static int uniphier_gpio_irq_set_type(struct irq_data *data, unsigned int type)
 {
-	struct uniphier_gpio_priv *priv = data->chip_data;
-	u32 mask = BIT(data->hwirq);
+	struct uniphier_gpio_priv *priv = irq_data_get_irq_chip_data(data);
+	u32 mask = BIT(irqd_to_hwirq(data));
 	u32 val = 0;
 
 	if (type == IRQ_TYPE_EDGE_BOTH) {
@@ -297,7 +297,8 @@ static int uniphier_gpio_irq_domain_activate(struct irq_domain *domain,
 	struct uniphier_gpio_priv *priv = domain->host_data;
 	struct gpio_chip *chip = &priv->chip;
 
-	return gpiochip_lock_as_irq(chip, data->hwirq + UNIPHIER_GPIO_IRQ_OFFSET);
+	return gpiochip_lock_as_irq(chip,
+			irqd_to_hwirq(data) + UNIPHIER_GPIO_IRQ_OFFSET);
 }
 
 static void uniphier_gpio_irq_domain_deactivate(struct irq_domain *domain,
@@ -306,7 +307,8 @@ static void uniphier_gpio_irq_domain_deactivate(struct irq_domain *domain,
 	struct uniphier_gpio_priv *priv = domain->host_data;
 	struct gpio_chip *chip = &priv->chip;
 
-	gpiochip_unlock_as_irq(chip, data->hwirq + UNIPHIER_GPIO_IRQ_OFFSET);
+	gpiochip_unlock_as_irq(chip,
+			irqd_to_hwirq(data) + UNIPHIER_GPIO_IRQ_OFFSET);
 }
 
 static const struct irq_domain_ops uniphier_gpio_irq_domain_ops = {

drivers/gpio/gpio-xilinx.c

@@ -371,8 +371,7 @@ static int __maybe_unused xgpio_resume(struct device *dev)
 
 static int __maybe_unused xgpio_runtime_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct xgpio_instance *gpio = platform_get_drvdata(pdev);
+	struct xgpio_instance *gpio = dev_get_drvdata(dev);
 
 	clk_disable(gpio->clk);
 
@@ -381,8 +380,7 @@ static int __maybe_unused xgpio_runtime_suspend(struct device *dev)
 
 static int __maybe_unused xgpio_runtime_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct xgpio_instance *gpio = platform_get_drvdata(pdev);
+	struct xgpio_instance *gpio = dev_get_drvdata(dev);
 
 	return clk_enable(gpio->clk);
 }

drivers/gpio/gpio-zynqmp-modepin.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for the ps-mode pin configuration.
+ *
+ * Copyright (c) 2021 Xilinx, Inc.
+ */
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio/driver.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/firmware/xlnx-zynqmp.h>
+
+/* 4-bit boot mode pins */
+#define MODE_PINS			4
+
+/**
+ * modepin_gpio_get_value - Get the state of the specified pin of GPIO device
+ * @chip:	gpio_chip instance to be worked on
+ * @pin:	gpio pin number within the device
+ *
+ * This function reads the state of the specified pin of the GPIO device.
+ *
+ * Return: 0 if the pin is low, 1 if pin is high, -EINVAL wrong pin configured
+ *         or error value.
+ */
+static int modepin_gpio_get_value(struct gpio_chip *chip, unsigned int pin)
+{
+	u32 regval = 0;
+	int ret;
+
+	ret = zynqmp_pm_bootmode_read(&regval);
+	if (ret)
+		return ret;
+
+	/* When [0:3] corresponding bit is set, then read output bit [8:11],
+	 * if the bit is clear then read input bit [4:7] for status or value.
+	 */
+	if (regval & BIT(pin))
+		return !!(regval & BIT(pin + 8));
+	else
+		return !!(regval & BIT(pin + 4));
+}
+
+/**
+ * modepin_gpio_set_value - Modify the state of the pin with specified value
+ * @chip:	gpio_chip instance to be worked on
+ * @pin:	gpio pin number within the device
+ * @state:	value used to modify the state of the specified pin
+ *
+ * This function reads the state of the specified pin of the GPIO device, mask
+ * with the capture state of GPIO pin, and update pin of GPIO device.
+ *
+ * Return:	None.
+ */
+static void modepin_gpio_set_value(struct gpio_chip *chip, unsigned int pin,
+				   int state)
+{
+	u32 bootpin_val = 0;
+	int ret;
+
+	zynqmp_pm_bootmode_read(&bootpin_val);
+
+	/* Configure pin as an output by set bit [0:3] */
+	bootpin_val |= BIT(pin);
+
+	if (state)
+		bootpin_val |= BIT(pin + 8);
+	else
+		bootpin_val &= ~BIT(pin + 8);
+
+	/* Configure bootpin value */
+	ret = zynqmp_pm_bootmode_write(bootpin_val);
+	if (ret)
+		pr_err("modepin: set value error %d for pin %d\n", ret, pin);
+}
+
+/**
+ * modepin_gpio_dir_in - Set the direction of the specified GPIO pin as input
+ * @chip:	gpio_chip instance to be worked on
+ * @pin:	gpio pin number within the device
+ *
+ * Return: 0 always
+ */
+static int modepin_gpio_dir_in(struct gpio_chip *chip, unsigned int pin)
+{
+	return 0;
+}
+
+/**
+ * modepin_gpio_dir_out - Set the direction of the specified GPIO pin as output
+ * @chip:	gpio_chip instance to be worked on
+ * @pin:	gpio pin number within the device
+ * @state:	value to be written to specified pin
+ *
+ * Return: 0 always
+ */
+static int modepin_gpio_dir_out(struct gpio_chip *chip, unsigned int pin,
+				int state)
+{
+	return 0;
+}
+
+/**
+ * modepin_gpio_probe - Initialization method for modepin_gpio
+ * @pdev:		platform device instance
+ *
+ * Return: 0 on success, negative error otherwise.
+ */
+static int modepin_gpio_probe(struct platform_device *pdev)
+{
+	struct gpio_chip *chip;
+	int status;
+
+	chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, chip);
+
+	/* configure the gpio chip */
+	chip->base = -1;
+	chip->ngpio = MODE_PINS;
+	chip->owner = THIS_MODULE;
+	chip->parent = &pdev->dev;
+	chip->get = modepin_gpio_get_value;
+	chip->set = modepin_gpio_set_value;
+	chip->direction_input = modepin_gpio_dir_in;
+	chip->direction_output = modepin_gpio_dir_out;
+	chip->label = dev_name(&pdev->dev);
+
+	/* modepin gpio registration */
+	status = devm_gpiochip_add_data(&pdev->dev, chip, chip);
+	if (status)
+		return dev_err_probe(&pdev->dev, status,
+			      "Failed to add GPIO chip\n");
+
+	return status;
+}
+
+static const struct of_device_id modepin_platform_id[] = {
+	{ .compatible = "xlnx,zynqmp-gpio-modepin", },
+	{ }
+};
+
+static struct platform_driver modepin_platform_driver = {
+	.driver = {
+		.name = "modepin-gpio",
+		.of_match_table = modepin_platform_id,
+	},
+	.probe = modepin_gpio_probe,
+};
+
+module_platform_driver(modepin_platform_driver);
+
+MODULE_AUTHOR("Piyush Mehta <piyush.mehta@xilinx.com>");
+MODULE_DESCRIPTION("ZynqMP Boot PS_MODE Configuration");
+MODULE_LICENSE("GPL v2");

drivers/net/ethernet/mellanox/mlxbf_gige/Makefile

@@ -3,7 +3,6 @@
 obj-$(CONFIG_MLXBF_GIGE) += mlxbf_gige.o
 
 mlxbf_gige-y := mlxbf_gige_ethtool.o \
-		mlxbf_gige_gpio.o \
 		mlxbf_gige_intr.o \
 		mlxbf_gige_main.o \
 		mlxbf_gige_mdio.o \

drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h

@@ -51,11 +51,6 @@
 #define MLXBF_GIGE_ERROR_INTR_IDX       0
 #define MLXBF_GIGE_RECEIVE_PKT_INTR_IDX 1
 #define MLXBF_GIGE_LLU_PLU_INTR_IDX     2
-#define MLXBF_GIGE_PHY_INT_N            3
-
-#define MLXBF_GIGE_MDIO_DEFAULT_PHY_ADDR 0x3
-
-#define MLXBF_GIGE_DEFAULT_PHY_INT_GPIO 12
 
 struct mlxbf_gige_stats {
 	u64 hw_access_errors;
@@ -81,11 +76,7 @@ struct mlxbf_gige {
 	struct platform_device *pdev;
 	void __iomem *mdio_io;
 	struct mii_bus *mdiobus;
-	void __iomem *gpio_io;
-	struct irq_domain *irqdomain;
-	u32 phy_int_gpio_mask;
 	spinlock_t lock;      /* for packet processing indices */
-	spinlock_t gpio_lock; /* for GPIO bus access */
 	u16 rx_q_entries;
 	u16 tx_q_entries;
 	u64 *tx_wqe_base;
@@ -184,7 +175,4 @@ int mlxbf_gige_poll(struct napi_struct *napi, int budget);
 extern const struct ethtool_ops mlxbf_gige_ethtool_ops;
 void mlxbf_gige_update_tx_wqe_next(struct mlxbf_gige *priv);
 
-int mlxbf_gige_gpio_init(struct platform_device *pdev, struct mlxbf_gige *priv);
-void mlxbf_gige_gpio_free(struct mlxbf_gige *priv);
-
 #endif /* !defined(__MLXBF_GIGE_H__) */

drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_gpio.c

-// SPDX-License-Identifier: GPL-2.0-only OR BSD-3-Clause
-
-/* Initialize and handle GPIO interrupt triggered by INT_N PHY signal.
- * This GPIO interrupt triggers the PHY state machine to bring the link
- * up/down.
- *
- * Copyright (C) 2021 NVIDIA CORPORATION & AFFILIATES
- */
-
-#include <linux/acpi.h>
-#include <linux/bitfield.h>
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/gpio/driver.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/irqreturn.h>
-#include <linux/platform_device.h>
-#include <linux/property.h>
-
-#include "mlxbf_gige.h"
-#include "mlxbf_gige_regs.h"
-
-#define MLXBF_GIGE_GPIO_CAUSE_FALL_EN		0x48
-#define MLXBF_GIGE_GPIO_CAUSE_OR_CAUSE_EVTEN0	0x80
-#define MLXBF_GIGE_GPIO_CAUSE_OR_EVTEN0		0x94
-#define MLXBF_GIGE_GPIO_CAUSE_OR_CLRCAUSE	0x98
-
-static void mlxbf_gige_gpio_enable(struct mlxbf_gige *priv)
-{
-	unsigned long flags;
-	u32 val;
-
-	spin_lock_irqsave(&priv->gpio_lock, flags);
-	val = readl(priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_CLRCAUSE);
-	val |= priv->phy_int_gpio_mask;
-	writel(val, priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_CLRCAUSE);
-
-	/* The INT_N interrupt level is active low.
-	 * So enable cause fall bit to detect when GPIO
-	 * state goes low.
-	 */
-	val = readl(priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_FALL_EN);
-	val |= priv->phy_int_gpio_mask;
-	writel(val, priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_FALL_EN);
-
-	/* Enable PHY interrupt by setting the priority level */
-	val = readl(priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_EVTEN0);
-	val |= priv->phy_int_gpio_mask;
-	writel(val, priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_EVTEN0);
-	spin_unlock_irqrestore(&priv->gpio_lock, flags);
-}
-
-static void mlxbf_gige_gpio_disable(struct mlxbf_gige *priv)
-{
-	unsigned long flags;
-	u32 val;
-
-	spin_lock_irqsave(&priv->gpio_lock, flags);
-	val = readl(priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_EVTEN0);
-	val &= ~priv->phy_int_gpio_mask;
-	writel(val, priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_EVTEN0);
-	spin_unlock_irqrestore(&priv->gpio_lock, flags);
-}
-
-static irqreturn_t mlxbf_gige_gpio_handler(int irq, void *ptr)
-{
-	struct mlxbf_gige *priv;
-	u32 val;
-
-	priv = ptr;
-
-	/* Check if this interrupt is from PHY device.
-	 * Return if it is not.
-	 */
-	val = readl(priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_CAUSE_EVTEN0);
-	if (!(val & priv->phy_int_gpio_mask))
-		return IRQ_NONE;
-
-	/* Clear interrupt when done, otherwise, no further interrupt
-	 * will be triggered.
-	 */
-	val = readl(priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_CLRCAUSE);
-	val |= priv->phy_int_gpio_mask;
-	writel(val, priv->gpio_io + MLXBF_GIGE_GPIO_CAUSE_OR_CLRCAUSE);
-
-	generic_handle_irq(priv->phy_irq);
-
-	return IRQ_HANDLED;
-}
-
-static void mlxbf_gige_gpio_mask(struct irq_data *irqd)
-{
-	struct mlxbf_gige *priv = irq_data_get_irq_chip_data(irqd);
-
-	mlxbf_gige_gpio_disable(priv);
-}
-
-static void mlxbf_gige_gpio_unmask(struct irq_data *irqd)
-{
-	struct mlxbf_gige *priv = irq_data_get_irq_chip_data(irqd);
-
-	mlxbf_gige_gpio_enable(priv);
-}
-
-static struct irq_chip mlxbf_gige_gpio_chip = {
-	.name			= "mlxbf_gige_phy",
-	.irq_mask		= mlxbf_gige_gpio_mask,
-	.irq_unmask		= mlxbf_gige_gpio_unmask,
-};
-
-static int mlxbf_gige_gpio_domain_map(struct irq_domain *d,
-				      unsigned int irq,
-				      irq_hw_number_t hwirq)
-{
-	irq_set_chip_data(irq, d->host_data);
-	irq_set_chip_and_handler(irq, &mlxbf_gige_gpio_chip, handle_simple_irq);
-	irq_set_noprobe(irq);
-
-	return 0;
-}
-
-static const struct irq_domain_ops mlxbf_gige_gpio_domain_ops = {
-	.map    = mlxbf_gige_gpio_domain_map,
-	.xlate	= irq_domain_xlate_twocell,
-};
-
-#ifdef CONFIG_ACPI
-static int mlxbf_gige_gpio_resources(struct acpi_resource *ares,
-				     void *data)
-{
-	struct acpi_resource_gpio *gpio;
-	u32 *phy_int_gpio = data;
-
-	if (ares->type == ACPI_RESOURCE_TYPE_GPIO) {
-		gpio = &ares->data.gpio;
-		*phy_int_gpio = gpio->pin_table[0];
-	}
-
-	return 1;
-}
-#endif
-
-void mlxbf_gige_gpio_free(struct mlxbf_gige *priv)
-{
-	irq_dispose_mapping(priv->phy_irq);
-	irq_domain_remove(priv->irqdomain);
-}
-
-int mlxbf_gige_gpio_init(struct platform_device *pdev,
-			 struct mlxbf_gige *priv)
-{
-	struct device *dev = &pdev->dev;
-	struct resource *res;
-	u32 phy_int_gpio = 0;
-	int ret;
-
-	LIST_HEAD(resources);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, MLXBF_GIGE_RES_GPIO0);
-	if (!res)
-		return -ENODEV;
-
-	priv->gpio_io = devm_ioremap(dev, res->start, resource_size(res));
-	if (!priv->gpio_io)
-		return -ENOMEM;
-
-#ifdef CONFIG_ACPI
-	ret = acpi_dev_get_resources(ACPI_COMPANION(dev),
-				     &resources, mlxbf_gige_gpio_resources,
-				     &phy_int_gpio);
-	acpi_dev_free_resource_list(&resources);
-	if (ret < 0 || !phy_int_gpio) {
-		dev_err(dev, "Error retrieving the gpio phy pin");
-		return -EINVAL;
-	}
-#endif
-
-	priv->phy_int_gpio_mask = BIT(phy_int_gpio);
-
-	mlxbf_gige_gpio_disable(priv);
-
-	priv->hw_phy_irq = platform_get_irq(pdev, MLXBF_GIGE_PHY_INT_N);
-
-	priv->irqdomain = irq_domain_add_simple(NULL, 1, 0,
-						&mlxbf_gige_gpio_domain_ops,
-						priv);
-	if (!priv->irqdomain) {
-		dev_err(dev, "Failed to add IRQ domain\n");
-		return -ENOMEM;
-	}
-
-	priv->phy_irq = irq_create_mapping(priv->irqdomain, 0);
-	if (!priv->phy_irq) {
-		irq_domain_remove(priv->irqdomain);
-		priv->irqdomain = NULL;
-		dev_err(dev, "Error mapping PHY IRQ\n");
-		return -EINVAL;
-	}
-
-	ret = devm_request_irq(dev, priv->hw_phy_irq, mlxbf_gige_gpio_handler,
-			       IRQF_ONESHOT | IRQF_SHARED, "mlxbf_gige_phy", priv);
-	if (ret) {
-		dev_err(dev, "Failed to request PHY IRQ");
-		mlxbf_gige_gpio_free(priv);
-		return ret;
-	}
-
-	return ret;
-}

drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c

@@ -280,8 +280,8 @@ static int mlxbf_gige_probe(struct platform_device *pdev)
 	void __iomem *llu_base;
 	void __iomem *plu_base;
 	void __iomem *base;
+	int addr, phy_irq;
 	u64 control;
-	int addr;
 	int err;
 
 	base = devm_platform_ioremap_resource(pdev, MLXBF_GIGE_RES_MAC);
@@ -316,20 +316,12 @@ static int mlxbf_gige_probe(struct platform_device *pdev)
 	priv->pdev = pdev;
 
 	spin_lock_init(&priv->lock);
-	spin_lock_init(&priv->gpio_lock);
 
 	/* Attach MDIO device */
 	err = mlxbf_gige_mdio_probe(pdev, priv);
 	if (err)
 		return err;
 
-	err = mlxbf_gige_gpio_init(pdev, priv);
-	if (err) {
-		dev_err(&pdev->dev, "PHY IRQ initialization failed\n");
-		mlxbf_gige_mdio_remove(priv);
-		return -ENODEV;
-	}
-
 	priv->base = base;
 	priv->llu_base = llu_base;
 	priv->plu_base = plu_base;
@@ -350,6 +342,12 @@ static int mlxbf_gige_probe(struct platform_device *pdev)
 	priv->rx_irq = platform_get_irq(pdev, MLXBF_GIGE_RECEIVE_PKT_INTR_IDX);
 	priv->llu_plu_irq = platform_get_irq(pdev, MLXBF_GIGE_LLU_PLU_INTR_IDX);
 
+	phy_irq = acpi_dev_gpio_irq_get_by(ACPI_COMPANION(&pdev->dev), "phy-gpios", 0);
+	if (phy_irq < 0) {
+		dev_err(&pdev->dev, "Error getting PHY irq. Use polling instead");
+		phy_irq = PHY_POLL;
+	}
+
 	phydev = phy_find_first(priv->mdiobus);
 	if (!phydev) {
 		err = -ENODEV;
@@ -357,8 +355,8 @@ static int mlxbf_gige_probe(struct platform_device *pdev)
 	}
 
 	addr = phydev->mdio.addr;
-	priv->mdiobus->irq[addr] = priv->phy_irq;
-	phydev->irq = priv->phy_irq;
+	priv->mdiobus->irq[addr] = phy_irq;
+	phydev->irq = phy_irq;
 
 	err = phy_connect_direct(netdev, phydev,
 				 mlxbf_gige_adjust_link,
@@ -394,7 +392,6 @@ static int mlxbf_gige_probe(struct platform_device *pdev)
 	return 0;
 
 out:
-	mlxbf_gige_gpio_free(priv);
 	mlxbf_gige_mdio_remove(priv);
 	return err;
 }
@@ -405,7 +402,6 @@ static int mlxbf_gige_remove(struct platform_device *pdev)
 
 	unregister_netdev(priv->netdev);
 	phy_disconnect(priv->netdev->phydev);
-	mlxbf_gige_gpio_free(priv);
 	mlxbf_gige_mdio_remove(priv);
 	platform_set_drvdata(pdev, NULL);
 

include/linux/firmware/xlnx-zynqmp.h

@@ -72,6 +72,8 @@ enum pm_api_id {
 	PM_SET_REQUIREMENT = 15,
 	PM_RESET_ASSERT = 17,
 	PM_RESET_GET_STATUS = 18,
+	PM_MMIO_WRITE = 19,
+	PM_MMIO_READ = 20,
 	PM_PM_INIT_FINALIZE = 21,
 	PM_FPGA_LOAD = 22,
 	PM_FPGA_GET_STATUS = 23,
@@ -397,6 +399,8 @@ int zynqmp_pm_ospi_mux_select(u32 dev_id, u32 select);
 int zynqmp_pm_reset_assert(const enum zynqmp_pm_reset reset,
 			   const enum zynqmp_pm_reset_action assert_flag);
 int zynqmp_pm_reset_get_status(const enum zynqmp_pm_reset reset, u32 *status);
+unsigned int zynqmp_pm_bootmode_read(u32 *ps_mode);
+int zynqmp_pm_bootmode_write(u32 ps_mode);
 int zynqmp_pm_init_finalize(void);
 int zynqmp_pm_set_suspend_mode(u32 mode);
 int zynqmp_pm_request_node(const u32 node, const u32 capabilities,
@@ -532,6 +536,16 @@ static inline int zynqmp_pm_reset_get_status(const enum zynqmp_pm_reset reset,
 	return -ENODEV;
 }
 
+static inline unsigned int zynqmp_pm_bootmode_read(u32 *ps_mode)
+{
+	return -ENODEV;
+}
+
+static inline int zynqmp_pm_bootmode_write(u32 ps_mode)
+{
+	return -ENODEV;
+}
+
 static inline int zynqmp_pm_init_finalize(void)
 {
 	return -ENODEV;

include/linux/spi/max7301.h

@@ -31,6 +31,6 @@ struct max7301_platform_data {
 	u32		input_pullup_active;
 };
 
-extern int __max730x_remove(struct device *dev);
+extern void __max730x_remove(struct device *dev);
 extern int __max730x_probe(struct max7301 *ts);
 #endif

include/uapi/linux/virtio_gpio.h

@@ -5,12 +5,16 @@
 
 #include <linux/types.h>
 
+/* Virtio GPIO Feature bits */
+#define VIRTIO_GPIO_F_IRQ			0
+
 /* Virtio GPIO request types */
 #define VIRTIO_GPIO_MSG_GET_NAMES		0x0001
 #define VIRTIO_GPIO_MSG_GET_DIRECTION		0x0002
 #define VIRTIO_GPIO_MSG_SET_DIRECTION		0x0003
 #define VIRTIO_GPIO_MSG_GET_VALUE		0x0004
 #define VIRTIO_GPIO_MSG_SET_VALUE		0x0005
+#define VIRTIO_GPIO_MSG_IRQ_TYPE		0x0006
 
 /* Possible values of the status field */
 #define VIRTIO_GPIO_STATUS_OK			0x0
@@ -21,11 +25,19 @@
 #define VIRTIO_GPIO_DIRECTION_OUT		0x01
 #define VIRTIO_GPIO_DIRECTION_IN		0x02
 
+/* Virtio GPIO IRQ types */
+#define VIRTIO_GPIO_IRQ_TYPE_NONE		0x00
+#define VIRTIO_GPIO_IRQ_TYPE_EDGE_RISING	0x01
+#define VIRTIO_GPIO_IRQ_TYPE_EDGE_FALLING	0x02
+#define VIRTIO_GPIO_IRQ_TYPE_EDGE_BOTH		0x03
+#define VIRTIO_GPIO_IRQ_TYPE_LEVEL_HIGH		0x04
+#define VIRTIO_GPIO_IRQ_TYPE_LEVEL_LOW		0x08
+
 struct virtio_gpio_config {
 	__le16 ngpio;
 	__u8 padding[2];
 	__le32 gpio_names_size;
-} __packed;
+};
 
 /* Virtio GPIO Request / Response */
 struct virtio_gpio_request {
@@ -44,4 +56,17 @@ struct virtio_gpio_response_get_names {
 	__u8 value[];
 };
 
+/* Virtio GPIO IRQ Request / Response */
+struct virtio_gpio_irq_request {
+	__le16 gpio;
+};
+
+struct virtio_gpio_irq_response {
+	__u8 status;
+};
+
+/* Possible values of the interrupt status field */
+#define VIRTIO_GPIO_IRQ_STATUS_INVALID		0x0
+#define VIRTIO_GPIO_IRQ_STATUS_VALID		0x1
+
 #endif /* _LINUX_VIRTIO_GPIO_H */