Merge Linus' tree to be be to apply submitted patches to newer code than

current trivial.git base

80 files changed, 3640 insertions, 3231 deletions

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 4a1b5113e527..0959ca9b6b27 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -136,7 +136,6 @@ config GPIO_DWAPB
 	tristate "Synopsys DesignWare APB GPIO driver"
 	select GPIO_GENERIC
 	select GENERIC_IRQ_CHIP
-	depends on OF_GPIO
 	help
 	  Say Y or M here to build support for the Synopsys DesignWare APB
 	  GPIO block.
@@ -334,12 +333,28 @@ config GPIO_TZ1090_PDC
 	help
 	  Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 
+config GPIO_XGENE
+	bool "APM X-Gene GPIO controller support"
+	depends on ARM64 && OF_GPIO
+	help
+	  This driver is to support the GPIO block within the APM X-Gene SoC
+	  platform's generic flash controller. The GPIO pins are muxed with
+	  the generic flash controller's address and data pins. Say yes
+	  here to enable the GFC GPIO functionality.
+
 config GPIO_XILINX
 	bool "Xilinx GPIO support"
 	depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
 	help
 	  Say yes here to support the Xilinx FPGA GPIO device
 
+config GPIO_ZYNQ
+	tristate "Xilinx Zynq GPIO support"
+	depends on ARCH_ZYNQ
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support Xilinx Zynq GPIO controller.
+
 config GPIO_XTENSA
 	bool "Xtensa GPIO32 support"
 	depends on XTENSA
@@ -423,7 +438,7 @@ config GPIO_GE_FPGA
 config GPIO_LYNXPOINT
 	tristate "Intel Lynxpoint GPIO support"
 	depends on ACPI && X86
-	select IRQ_DOMAIN
+	select GPIOLIB_IRQCHIP
 	help
 	  driver for GPIO functionality on Intel Lynxpoint PCH chipset
 	  Requires ACPI device enumeration code to set up a platform device.
@@ -450,6 +465,19 @@ config GPIO_ARIZONA
 	help
 	  Support for GPIOs on Wolfson Arizona class devices.
 
+config GPIO_CRYSTAL_COVE
+	tristate "GPIO support for Crystal Cove PMIC"
+	depends on INTEL_SOC_PMIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Support for GPIO pins on Crystal Cove PMIC.
+
+	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
+	  inside.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called gpio-crystalcove.
+
 config GPIO_LP3943
 	tristate "TI/National Semiconductor LP3943 GPIO expander"
 	depends on MFD_LP3943
@@ -573,6 +601,7 @@ config GPIO_SX150X
 config GPIO_STMPE
 	bool "STMPE GPIOs"
 	depends on MFD_STMPE
+	select GPIOLIB_IRQCHIP
 	help
 	  This enables support for the GPIOs found on the STMPE I/O
 	  Expanders.
@@ -660,6 +689,7 @@ config GPIO_ADP5588_IRQ
 config GPIO_ADNP
 	tristate "Avionic Design N-bit GPIO expander"
 	depends on I2C && OF_GPIO
+	select GPIOLIB_IRQCHIP
 	help
 	  This option enables support for N GPIOs found on Avionic Design
 	  I2C GPIO expanders. The register space will be extended by powers
@@ -775,7 +805,6 @@ config GPIO_MAX7301
 
 config GPIO_MCP23S08
 	tristate "Microchip MCP23xxx I/O expander"
-	depends on OF_GPIO
 	depends on (SPI_MASTER && !I2C) || I2C
 	help
 	  SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
@@ -859,7 +888,7 @@ config GPIO_MSIC
 
 config GPIO_BCM_KONA
 	bool "Broadcom Kona GPIO"
-	depends on OF_GPIO
+	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 	help
 	  Turn on GPIO support for Broadcom "Kona" chips.
 
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index d10f6a9d875a..e5d346cf3b6e 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -4,7 +4,9 @@ ccflags-$(CONFIG_DEBUG_GPIO)	+= -DDEBUG
 
 obj-$(CONFIG_GPIO_DEVRES)	+= devres.o
 obj-$(CONFIG_GPIOLIB)		+= gpiolib.o
+obj-$(CONFIG_GPIOLIB)		+= gpiolib-legacy.o
 obj-$(CONFIG_OF_GPIO)		+= gpiolib-of.o
+obj-$(CONFIG_GPIO_SYSFS)	+= gpiolib-sysfs.o
 obj-$(CONFIG_GPIO_ACPI)		+= gpiolib-acpi.o
 
 # Device drivers. Generally keep list sorted alphabetically
@@ -20,6 +22,7 @@ obj-$(CONFIG_GPIO_BCM_KONA)	+= gpio-bcm-kona.o
 obj-$(CONFIG_GPIO_BT8XX)	+= gpio-bt8xx.o
 obj-$(CONFIG_GPIO_CLPS711X)	+= gpio-clps711x.o
 obj-$(CONFIG_GPIO_CS5535)	+= gpio-cs5535.o
+obj-$(CONFIG_GPIO_CRYSTAL_COVE)	+= gpio-crystalcove.o
 obj-$(CONFIG_GPIO_DA9052)	+= gpio-da9052.o
 obj-$(CONFIG_GPIO_DA9055)	+= gpio-da9055.o
 obj-$(CONFIG_GPIO_DAVINCI)	+= gpio-davinci.o
@@ -98,6 +101,8 @@ obj-$(CONFIG_GPIO_VX855)	+= gpio-vx855.o
 obj-$(CONFIG_GPIO_WM831X)	+= gpio-wm831x.o
 obj-$(CONFIG_GPIO_WM8350)	+= gpio-wm8350.o
 obj-$(CONFIG_GPIO_WM8994)	+= gpio-wm8994.o
+obj-$(CONFIG_GPIO_XGENE)	+= gpio-xgene.o
 obj-$(CONFIG_GPIO_XILINX)	+= gpio-xilinx.o
 obj-$(CONFIG_GPIO_XTENSA)	+= gpio-xtensa.o
 obj-$(CONFIG_GPIO_ZEVIO)	+= gpio-zevio.o
+obj-$(CONFIG_GPIO_ZYNQ)		+= gpio-zynq.o
diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c
index 65978cf85f79..954b9f6b0ef8 100644
--- a/drivers/gpio/devres.c
+++ b/drivers/gpio/devres.c
@@ -39,57 +39,63 @@ static int devm_gpiod_match(struct device *dev, void *res, void *data)
  * devm_gpiod_get - Resource-managed gpiod_get()
  * @dev:	GPIO consumer
  * @con_id:	function within the GPIO consumer
+ * @flags:	optional GPIO initialization flags
  *
  * Managed gpiod_get(). GPIO descriptors returned from this function are
  * automatically disposed on driver detach. See gpiod_get() for detailed
  * information about behavior and return values.
  */
-struct gpio_desc *__must_check devm_gpiod_get(struct device *dev,
-					      const char *con_id)
+struct gpio_desc *__must_check __devm_gpiod_get(struct device *dev,
+					      const char *con_id,
+					      enum gpiod_flags flags)
 {
-	return devm_gpiod_get_index(dev, con_id, 0);
+	return devm_gpiod_get_index(dev, con_id, 0, flags);
 }
-EXPORT_SYMBOL(devm_gpiod_get);
+EXPORT_SYMBOL(__devm_gpiod_get);
 
 /**
  * devm_gpiod_get_optional - Resource-managed gpiod_get_optional()
  * @dev: GPIO consumer
  * @con_id: function within the GPIO consumer
+ * @flags: optional GPIO initialization flags
  *
  * Managed gpiod_get_optional(). GPIO descriptors returned from this function
  * are automatically disposed on driver detach. See gpiod_get_optional() for
  * detailed information about behavior and return values.
  */
-struct gpio_desc *__must_check devm_gpiod_get_optional(struct device *dev,
-						       const char *con_id)
+struct gpio_desc *__must_check __devm_gpiod_get_optional(struct device *dev,
+						       const char *con_id,
+						       enum gpiod_flags flags)
 {
-	return devm_gpiod_get_index_optional(dev, con_id, 0);
+	return devm_gpiod_get_index_optional(dev, con_id, 0, flags);
 }
-EXPORT_SYMBOL(devm_gpiod_get_optional);
+EXPORT_SYMBOL(__devm_gpiod_get_optional);
 
 /**
  * devm_gpiod_get_index - Resource-managed gpiod_get_index()
  * @dev:	GPIO consumer
  * @con_id:	function within the GPIO consumer
  * @idx:	index of the GPIO to obtain in the consumer
+ * @flags:	optional GPIO initialization flags
  *
  * Managed gpiod_get_index(). GPIO descriptors returned from this function are
  * automatically disposed on driver detach. See gpiod_get_index() for detailed
  * information about behavior and return values.
  */
-struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev,
+struct gpio_desc *__must_check __devm_gpiod_get_index(struct device *dev,
 						    const char *con_id,
-						    unsigned int idx)
+						    unsigned int idx,
+						    enum gpiod_flags flags)
 {
 	struct gpio_desc **dr;
 	struct gpio_desc *desc;
 
-	dr = devres_alloc(devm_gpiod_release, sizeof(struct gpiod_desc *),
+	dr = devres_alloc(devm_gpiod_release, sizeof(struct gpio_desc *),
 			  GFP_KERNEL);
 	if (!dr)
 		return ERR_PTR(-ENOMEM);
 
-	desc = gpiod_get_index(dev, con_id, idx);
+	desc = gpiod_get_index(dev, con_id, idx, flags);
 	if (IS_ERR(desc)) {
 		devres_free(dr);
 		return desc;
@@ -100,26 +106,28 @@ struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev,
 
 	return desc;
 }
-EXPORT_SYMBOL(devm_gpiod_get_index);
+EXPORT_SYMBOL(__devm_gpiod_get_index);
 
 /**
  * devm_gpiod_get_index_optional - Resource-managed gpiod_get_index_optional()
  * @dev: GPIO consumer
  * @con_id: function within the GPIO consumer
  * @index: index of the GPIO to obtain in the consumer
+ * @flags: optional GPIO initialization flags
  *
  * Managed gpiod_get_index_optional(). GPIO descriptors returned from this
  * function are automatically disposed on driver detach. See
  * gpiod_get_index_optional() for detailed information about behavior and
  * return values.
  */
-struct gpio_desc *__must_check devm_gpiod_get_index_optional(struct device *dev,
+struct gpio_desc *__must_check __devm_gpiod_get_index_optional(struct device *dev,
 							     const char *con_id,
-							     unsigned int index)
+							     unsigned int index,
+							 enum gpiod_flags flags)
 {
 	struct gpio_desc *desc;
 
-	desc = devm_gpiod_get_index(dev, con_id, index);
+	desc = devm_gpiod_get_index(dev, con_id, index, flags);
 	if (IS_ERR(desc)) {
 		if (PTR_ERR(desc) == -ENOENT)
 			return NULL;
@@ -127,7 +135,7 @@ struct gpio_desc *__must_check devm_gpiod_get_index_optional(struct device *dev,
 
 	return desc;
 }
-EXPORT_SYMBOL(devm_gpiod_get_index_optional);
+EXPORT_SYMBOL(__devm_gpiod_get_index_optional);
 
 /**
  * devm_gpiod_put - Resource-managed gpiod_put()
diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index e4ae29824c32..e3d968f751f1 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -167,13 +167,11 @@ exit_destroy:
 static int gen_74x164_remove(struct spi_device *spi)
 {
 	struct gen_74x164_chip *chip = spi_get_drvdata(spi);
-	int ret;
 
-	ret = gpiochip_remove(&chip->gpio_chip);
-	if (!ret)
-		mutex_destroy(&chip->lock);
+	gpiochip_remove(&chip->gpio_chip);
+	mutex_destroy(&chip->lock);
 
-	return ret;
+	return 0;
 }
 
 static const struct of_device_id gen_74x164_dt_ids[] = {
diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index b2239d678d01..d3d0a90fe542 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -6,10 +6,9 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
-#include <linux/irqdomain.h>
 #include <linux/module.h>
 #include <linux/of_irq.h>
 #include <linux/seq_file.h>
@@ -27,8 +26,6 @@ struct adnp {
 	unsigned int reg_shift;
 
 	struct mutex i2c_lock;
-
-	struct irq_domain *domain;
 	struct mutex irq_lock;
 
 	u8 *irq_enable;
@@ -253,6 +250,7 @@ static void adnp_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 static int adnp_gpio_setup(struct adnp *adnp, unsigned int num_gpios)
 {
 	struct gpio_chip *chip = &adnp->gpio;
+	int err;
 
 	adnp->reg_shift = get_count_order(num_gpios) - 3;
 
@@ -272,6 +270,10 @@ static int adnp_gpio_setup(struct adnp *adnp, unsigned int num_gpios)
 	chip->of_node = chip->dev->of_node;
 	chip->owner = THIS_MODULE;
 
+	err = gpiochip_add(chip);
+	if (err)
+		return err;
+
 	return 0;
 }
 
@@ -326,7 +328,8 @@ static irqreturn_t adnp_irq(int irq, void *data)
 
 		for_each_set_bit(bit, &pending, 8) {
 			unsigned int child_irq;
-			child_irq = irq_find_mapping(adnp->domain, base + bit);
+			child_irq = irq_find_mapping(adnp->gpio.irqdomain,
+						     base + bit);
 			handle_nested_irq(child_irq);
 		}
 	}
@@ -334,35 +337,32 @@ static irqreturn_t adnp_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static int adnp_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+static void adnp_irq_mask(struct irq_data *d)
 {
-	struct adnp *adnp = to_adnp(chip);
-	return irq_create_mapping(adnp->domain, offset);
-}
-
-static void adnp_irq_mask(struct irq_data *data)
-{
-	struct adnp *adnp = irq_data_get_irq_chip_data(data);
-	unsigned int reg = data->hwirq >> adnp->reg_shift;
-	unsigned int pos = data->hwirq & 7;
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adnp *adnp = to_adnp(gc);
+	unsigned int reg = d->hwirq >> adnp->reg_shift;
+	unsigned int pos = d->hwirq & 7;
 
 	adnp->irq_enable[reg] &= ~BIT(pos);
 }
 
-static void adnp_irq_unmask(struct irq_data *data)
+static void adnp_irq_unmask(struct irq_data *d)
 {
-	struct adnp *adnp = irq_data_get_irq_chip_data(data);
-	unsigned int reg = data->hwirq >> adnp->reg_shift;
-	unsigned int pos = data->hwirq & 7;
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adnp *adnp = to_adnp(gc);
+	unsigned int reg = d->hwirq >> adnp->reg_shift;
+	unsigned int pos = d->hwirq & 7;
 
 	adnp->irq_enable[reg] |= BIT(pos);
 }
 
-static int adnp_irq_set_type(struct irq_data *data, unsigned int type)
+static int adnp_irq_set_type(struct irq_data *d, unsigned int type)
 {
-	struct adnp *adnp = irq_data_get_irq_chip_data(data);
-	unsigned int reg = data->hwirq >> adnp->reg_shift;
-	unsigned int pos = data->hwirq & 7;
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adnp *adnp = to_adnp(gc);
+	unsigned int reg = d->hwirq >> adnp->reg_shift;
+	unsigned int pos = d->hwirq & 7;
 
 	if (type & IRQ_TYPE_EDGE_RISING)
 		adnp->irq_rise[reg] |= BIT(pos);
@@ -387,16 +387,18 @@ static int adnp_irq_set_type(struct irq_data *data, unsigned int type)
 	return 0;
 }
 
-static void adnp_irq_bus_lock(struct irq_data *data)
+static void adnp_irq_bus_lock(struct irq_data *d)
 {
-	struct adnp *adnp = irq_data_get_irq_chip_data(data);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adnp *adnp = to_adnp(gc);
 
 	mutex_lock(&adnp->irq_lock);
 }
 
-static void adnp_irq_bus_unlock(struct irq_data *data)
+static void adnp_irq_bus_unlock(struct irq_data *d)
 {
-	struct adnp *adnp = irq_data_get_irq_chip_data(data);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adnp *adnp = to_adnp(gc);
 	unsigned int num_regs = 1 << adnp->reg_shift, i;
 
 	mutex_lock(&adnp->i2c_lock);
@@ -408,26 +410,6 @@ static void adnp_irq_bus_unlock(struct irq_data *data)
 	mutex_unlock(&adnp->irq_lock);
 }
 
-static int adnp_irq_reqres(struct irq_data *data)
-{
-	struct adnp *adnp = irq_data_get_irq_chip_data(data);
-
-	if (gpio_lock_as_irq(&adnp->gpio, data->hwirq)) {
-		dev_err(adnp->gpio.dev,
-			"unable to lock HW IRQ %lu for IRQ\n",
-			data->hwirq);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static void adnp_irq_relres(struct irq_data *data)
-{
-	struct adnp *adnp = irq_data_get_irq_chip_data(data);
-
-	gpio_unlock_as_irq(&adnp->gpio, data->hwirq);
-}
-
 static struct irq_chip adnp_irq_chip = {
 	.name = "gpio-adnp",
 	.irq_mask = adnp_irq_mask,
@@ -435,29 +417,6 @@ static struct irq_chip adnp_irq_chip = {
 	.irq_set_type = adnp_irq_set_type,
 	.irq_bus_lock = adnp_irq_bus_lock,
 	.irq_bus_sync_unlock = adnp_irq_bus_unlock,
-	.irq_request_resources = adnp_irq_reqres,
-	.irq_release_resources = adnp_irq_relres,
-};
-
-static int adnp_irq_map(struct irq_domain *domain, unsigned int irq,
-			irq_hw_number_t hwirq)
-{
-	irq_set_chip_data(irq, domain->host_data);
-	irq_set_chip(irq, &adnp_irq_chip);
-	irq_set_nested_thread(irq, true);
-
-#ifdef CONFIG_ARM
-	set_irq_flags(irq, IRQF_VALID);
-#else
-	irq_set_noprobe(irq);
-#endif
-
-	return 0;
-}
-
-static const struct irq_domain_ops adnp_irq_domain_ops = {
-	.map = adnp_irq_map,
-	.xlate = irq_domain_xlate_twocell,
 };
 
 static int adnp_irq_setup(struct adnp *adnp)
@@ -503,35 +462,28 @@ static int adnp_irq_setup(struct adnp *adnp)
 		adnp->irq_enable[i] = 0x00;
 	}
 
-	adnp->doma