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

current trivial.git base

8 files changed, 39 insertions, 67 deletions

diff --git a/drivers/pinctrl/spear/Kconfig b/drivers/pinctrl/spear/Kconfig
index 04d93e6..9ef18eb 100644
--- a/drivers/pinctrl/spear/Kconfig
+++ b/drivers/pinctrl/spear/Kconfig
@@ -48,6 +48,7 @@ config PINCTRL_SPEAR1340
 config PINCTRL_SPEAR_PLGPIO
 	bool "SPEAr SoC PLGPIO Controller"
 	depends on GPIOLIB && PINCTRL_SPEAR
+	select GPIOLIB_IRQCHIP
 	help
 	  Say yes here to support PLGPIO controller on ST Microelectronics SPEAr
 	  SoCs.
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
index ecfc6aa..ce5f22c 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -11,12 +11,11 @@
 
 #include <linux/clk.h>
 #include <linux/err.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/irqchip/chained_irq.h>
 #include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
@@ -54,7 +53,6 @@ struct plgpio_regs {
  *
  * lock: lock for guarding gpio registers
  * base: base address of plgpio block
- * irq_base: irq number of plgpio0
  * chip: gpio framework specific chip information structure
  * p2o: function ptr for pin to offset conversion. This is required only for
  *	machines where mapping b/w pin and offset is not 1-to-1.
@@ -68,8 +66,6 @@ struct plgpio {
 	spinlock_t		lock;
 	void __iomem		*base;
 	struct clk		*clk;
-	unsigned		irq_base;
-	struct irq_domain	*irq_domain;
 	struct gpio_chip	chip;
 	int			(*p2o)(int pin);	/* pin_to_offset */
 	int			(*o2p)(int offset);	/* offset_to_pin */
@@ -280,21 +276,12 @@ disable_clk:
 	pinctrl_free_gpio(gpio);
 }
 
-static int plgpio_to_irq(struct gpio_chip *chip, unsigned offset)
-{
-	struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
-
-	if (IS_ERR_VALUE(plgpio->irq_base))
-		return -EINVAL;
-
-	return irq_find_mapping(plgpio->irq_domain, offset);
-}
-
 /* PLGPIO IRQ */
 static void plgpio_irq_disable(struct irq_data *d)
 {
-	struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
-	int offset = d->irq - plgpio->irq_base;
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct plgpio *plgpio = container_of(gc, struct plgpio, chip);
+	int offset = d->hwirq;
 	unsigned long flags;
 
 	/* get correct offset for "offset" pin */
@@ -311,8 +298,9 @@ static void plgpio_irq_disable(struct irq_data *d)
 
 static void plgpio_irq_enable(struct irq_data *d)
 {
-	struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
-	int offset = d->irq - plgpio->irq_base;
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct plgpio *plgpio = container_of(gc, struct plgpio, chip);
+	int offset = d->hwirq;
 	unsigned long flags;
 
 	/* get correct offset for "offset" pin */
@@ -329,8 +317,9 @@ static void plgpio_irq_enable(struct irq_data *d)
 
 static int plgpio_irq_set_type(struct irq_data *d, unsigned trigger)
 {
-	struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
-	int offset = d->irq - plgpio->irq_base;
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct plgpio *plgpio = container_of(gc, struct plgpio, chip);
+	int offset = d->hwirq;
 	void __iomem *reg_off;
 	unsigned int supported_type = 0, val;
 
@@ -369,7 +358,8 @@ static struct irq_chip plgpio_irqchip = {
 
 static void plgpio_irq_handler(unsigned irq, struct irq_desc *desc)
 {
-	struct plgpio *plgpio = irq_get_handler_data(irq);
+	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
+	struct plgpio *plgpio = container_of(gc, struct plgpio, chip);
 	struct irq_chip *irqchip = irq_desc_get_chip(desc);
 	int regs_count, count, pin, offset, i = 0;
 	unsigned long pending;
@@ -410,7 +400,8 @@ static void plgpio_irq_handler(unsigned irq, struct irq_desc *desc)
 
 			/* get correct irq line number */
 			pin = i * MAX_GPIO_PER_REG + pin;
-			generic_handle_irq(plgpio_to_irq(&plgpio->chip, pin));
+			generic_handle_irq(
+				irq_find_mapping(gc->irqdomain, pin));
 		}
 	}
 	chained_irq_exit(irqchip, desc);
@@ -523,10 +514,9 @@ end:
 }
 static int plgpio_probe(struct platform_device *pdev)
 {
-	struct device_node *np = pdev->dev.of_node;
 	struct plgpio *plgpio;
 	struct resource *res;
-	int ret, irq, i;
+	int ret, irq;
 
 	plgpio = devm_kzalloc(&pdev->dev, sizeof(*plgpio), GFP_KERNEL);
 	if (!plgpio) {
@@ -563,7 +553,6 @@ static int plgpio_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, plgpio);
 	spin_lock_init(&plgpio->lock);
 
-	plgpio->irq_base = -1;
 	plgpio->chip.base = -1;
 	plgpio->chip.request = plgpio_request;
 	plgpio->chip.free = plgpio_free;
@@ -571,10 +560,10 @@ static int plgpio_probe(struct platform_device *pdev)
 	plgpio->chip.direction_output = plgpio_direction_output;
 	plgpio->chip.get = plgpio_get_value;
 	plgpio->chip.set = plgpio_set_value;
-	plgpio->chip.to_irq = plgpio_to_irq;
 	plgpio->chip.label = dev_name(&pdev->dev);
 	plgpio->chip.dev = &pdev->dev;
 	plgpio->chip.owner = THIS_MODULE;
+	plgpio->chip.of_node = pdev->dev.of_node;
 
 	if (!IS_ERR(plgpio->clk)) {
 		ret = clk_prepare(plgpio->clk);
@@ -592,43 +581,32 @@ static int plgpio_probe(struct platform_device *pdev)
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
-		dev_info(&pdev->dev, "irqs not supported\n");
-		return 0;
-	}
-
-	plgpio->irq_base = irq_alloc_descs(-1, 0, plgpio->chip.ngpio, 0);
-	if (IS_ERR_VALUE(plgpio->irq_base)) {
-		/* we would not support irq for gpio */
-		dev_warn(&pdev->dev, "couldn't allocate irq base\n");
+		dev_info(&pdev->dev, "PLGPIO registered without IRQs\n");
 		return 0;
 	}
 
-	plgpio->irq_domain = irq_domain_add_legacy(np, plgpio->chip.ngpio,
-			plgpio->irq_base, 0, &irq_domain_simple_ops, NULL);
-	if (WARN_ON(!plgpio->irq_domain)) {
-		dev_err(&pdev->dev, "irq domain init failed\n");
-		irq_free_descs(plgpio->irq_base, plgpio->chip.ngpio);
-		ret = -ENXIO;
+	ret = gpiochip_irqchip_add(&plgpio->chip,
+				   &plgpio_irqchip,
+				   0,
+				   handle_simple_irq,
+				   IRQ_TYPE_NONE);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to add irqchip to gpiochip\n");
 		goto remove_gpiochip;
 	}
 
-	irq_set_chained_handler(irq, plgpio_irq_handler);
-	for (i = 0; i < plgpio->chip.ngpio; i++) {
-		irq_set_chip_and_handler(i + plgpio->irq_base, &plgpio_irqchip,
-				handle_simple_irq);
-		set_irq_flags(i + plgpio->irq_base, IRQF_VALID);
-		irq_set_chip_data(i + plgpio->irq_base, plgpio);
-	}
+	gpiochip_set_chained_irqchip(&plgpio->chip,
+				     &plgpio_irqchip,
+				     irq,
+				     plgpio_irq_handler);
 
-	irq_set_handler_data(irq, plgpio);
 	dev_info(&pdev->dev, "PLGPIO registered with IRQs\n");
 
 	return 0;
 
 remove_gpiochip:
 	dev_info(&pdev->dev, "Remove gpiochip\n");
-	if (gpiochip_remove(&plgpio->chip))
-		dev_err(&pdev->dev, "unable to remove gpiochip\n");
+	gpiochip_remove(&plgpio->chip);
 unprepare_clk:
 	if (!IS_ERR(plgpio->clk))
 		clk_unprepare(plgpio->clk);
diff --git a/drivers/pinctrl/spear/pinctrl-spear.c b/drivers/pinctrl/spear/pinctrl-spear.c
index 58bf686..abdb05a 100644
--- a/drivers/pinctrl/spear/pinctrl-spear.c
+++ b/drivers/pinctrl/spear/pinctrl-spear.c
@@ -268,18 +268,12 @@ static int spear_pinctrl_endisable(struct pinctrl_dev *pctldev,
 	return 0;
 }
 
-static int spear_pinctrl_enable(struct pinctrl_dev *pctldev, unsigned function,
+static int spear_pinctrl_set_mux(struct pinctrl_dev *pctldev, unsigned function,
 		unsigned group)
 {
 	return spear_pinctrl_endisable(pctldev, function, group, true);
 }
 
-static void spear_pinctrl_disable(struct pinctrl_dev *pctldev,
-		unsigned function, unsigned group)
-{
-	spear_pinctrl_endisable(pctldev, function, group, false);
-}
-
 /* gpio with pinmux */
 static struct spear_gpio_pingroup *get_gpio_pingroup(struct spear_pmx *pmx,
 		unsigned pin)
@@ -344,8 +338,7 @@ static const struct pinmux_ops spear_pinmux_ops = {
 	.get_functions_count = spear_pinctrl_get_funcs_count,
 	.get_function_name = spear_pinctrl_get_func_name,
 	.get_function_groups = spear_pinctrl_get_func_groups,
-	.enable = spear_pinctrl_enable,
-	.disable = spear_pinctrl_disable,
+	.set_mux = spear_pinctrl_set_mux,
 	.gpio_request_enable = gpio_request_enable,
 	.gpio_disable_free = gpio_disable_free,
 };
diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c
index 1a8bbfe..6d57d43 100644
--- a/drivers/pinctrl/spear/pinctrl-spear1310.c
+++ b/drivers/pinctrl/spear/pinctrl-spear1310.c
@@ -2692,7 +2692,7 @@ static struct spear_pinctrl_machdata spear1310_machdata = {
 	.modes_supported = false,
 };
 
-static struct of_device_id spear1310_pinctrl_of_match[] = {
+static const struct of_device_id spear1310_pinctrl_of_match[] = {
 	{
 		.compatible = "st,spear1310-pinmux",
 	},
diff --git a/drivers/pinctrl/spear/pinctrl-spear1340.c b/drivers/pinctrl/spear/pinctrl-spear1340.c
index 873966e..d243e43 100644
--- a/drivers/pinctrl/spear/pinctrl-spear1340.c
+++ b/drivers/pinctrl/spear/pinctrl-spear1340.c
@@ -2008,7 +2008,7 @@ static struct spear_pinctrl_machdata spear1340_machdata = {
 	.modes_supported = false,
 };
 
-static struct of_device_id spear1340_pinctrl_of_match[] = {
+static const struct of_device_id spear1340_pinctrl_of_match[] = {
 	{
 		.compatible = "st,spear1340-pinmux",
 	},
diff --git a/drivers/pinctrl/spear/pinctrl-spear300.c b/drivers/pinctrl/spear/pinctrl-spear300.c
index 4777c0d..9db83e9 100644
--- a/drivers/pinctrl/spear/pinctrl-spear300.c
+++ b/drivers/pinctrl/spear/pinctrl-spear300.c
@@ -646,7 +646,7 @@ static struct spear_function *spear300_functions[] = {
 	&gpio1_function,
 };
 
-static struct of_device_id spear300_pinctrl_of_match[] = {
+static const struct of_device_id spear300_pinctrl_of_match[] = {
 	{
 		.compatible = "st,spear300-pinmux",
 	},
diff --git a/drivers/pinctrl/spear/pinctrl-spear310.c b/drivers/pinctrl/spear/pinctrl-spear310.c
index ed1d360..db775a4 100644
--- a/drivers/pinctrl/spear/pinctrl-spear310.c
+++ b/drivers/pinctrl/spear/pinctrl-spear310.c
@@ -371,7 +371,7 @@ static struct spear_function *spear310_functions[] = {
 	&tdm_function,
 };
 
-static struct of_device_id spear310_pinctrl_of_match[] = {
+static const struct of_device_id spear310_pinctrl_of_match[] = {
 	{
 		.compatible = "st,spear310-pinmux",
 	},
diff --git a/drivers/pinctrl/spear/pinctrl-spear320.c b/drivers/pinctrl/spear/pinctrl-spear320.c
index b8e290a..80fbd68 100644
--- a/drivers/pinctrl/spear/pinctrl-spear320.c
+++ b/drivers/pinctrl/spear/pinctrl-spear320.c
@@ -3410,7 +3410,7 @@ static struct spear_function *spear320_functions[] = {
 	&i2c2_function,
 };
 
-static struct of_device_id spear320_pinctrl_of_match[] = {
+static const struct of_device_id spear320_pinctrl_of_match[] = {
 	{
 		.compatible = "st,spear320-pinmux",
 	},