gpio: switch drivers to use new callback

This switches all GPIO and pin control drivers with irqchips
that were using .startup() and .shutdown() callbacks to lock
GPIO lines for IRQ usage over to using the .request_resources()
and .release_resources() callbacks just introduced into the
irqchip vtable.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

5 files changed, 41 insertions, 24 deletions

diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c
index 7a39562c3e42..94138bca1f2e 100644
--- a/drivers/pinctrl/pinctrl-adi2.c
+++ b/drivers/pinctrl/pinctrl-adi2.c
@@ -324,6 +324,7 @@ static unsigned int adi_gpio_irq_startup(struct irq_data *d)
 
 	if (!port) {
 		pr_err("GPIO IRQ %d :Not exist\n", d->irq);
+		/* FIXME: negative return code will be ignored */
 		return -ENODEV;
 	}
 
diff --git a/drivers/pinctrl/pinctrl-baytrail.c b/drivers/pinctrl/pinctrl-baytrail.c
index 665b96bc0c3a..9a4abd9cc878 100644
--- a/drivers/pinctrl/pinctrl-baytrail.c
+++ b/drivers/pinctrl/pinctrl-baytrail.c
@@ -371,23 +371,23 @@ static void byt_irq_mask(struct irq_data *d)
 {
 }
 
-static unsigned int byt_irq_startup(struct irq_data *d)
+static int byt_irq_reqres(struct irq_data *d)
 {
 	struct byt_gpio *vg = irq_data_get_irq_chip_data(d);
 
-	if (gpio_lock_as_irq(&vg->chip, irqd_to_hwirq(d)))
+	if (gpio_lock_as_irq(&vg->chip, irqd_to_hwirq(d))) {
 		dev_err(vg->chip.dev,
 			"unable to lock HW IRQ %lu for IRQ\n",
 			irqd_to_hwirq(d));
-	byt_irq_unmask(d);
+		return -EINVAL;
+	}
 	return 0;
 }
 
-static void byt_irq_shutdown(struct irq_data *d)
+static void byt_irq_relres(struct irq_data *d)
 {
 	struct byt_gpio *vg = irq_data_get_irq_chip_data(d);
 
-	byt_irq_mask(d);
 	gpio_unlock_as_irq(&vg->chip, irqd_to_hwirq(d));
 }
 
@@ -396,8 +396,8 @@ static struct irq_chip byt_irqchip = {
 	.irq_mask = byt_irq_mask,
 	.irq_unmask = byt_irq_unmask,
 	.irq_set_type = byt_irq_type,
-	.irq_startup = byt_irq_startup,
-	.irq_shutdown = byt_irq_shutdown,
+	.irq_request_resources = byt_irq_reqres,
+	.irq_release_resources = byt_irq_relres,
 };
 
 static void byt_gpio_irq_init_hw(struct byt_gpio *vg)
diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c
index ef2bf3126da6..81ecd6ba4169 100644
--- a/drivers/pinctrl/pinctrl-msm.c
+++ b/drivers/pinctrl/pinctrl-msm.c
@@ -805,23 +805,22 @@ static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
 	return 0;
 }
 
-static unsigned int msm_gpio_irq_startup(struct irq_data *d)
+static int msm_gpio_irq_reqres(struct irq_data *d)
 {
 	struct msm_pinctrl *pctrl = irq_data_get_irq_chip_data(d);
 
 	if (gpio_lock_as_irq(&pctrl->chip, d->hwirq)) {
 		dev_err(pctrl->dev, "unable to lock HW IRQ %lu for IRQ\n",
 			d->hwirq);
+		return -EINVAL;
 	}
-	msm_gpio_irq_unmask(d);
 	return 0;
 }
 
-static void msm_gpio_irq_shutdown(struct irq_data *d)
+static void msm_gpio_irq_relres(struct irq_data *d)
 {
 	struct msm_pinctrl *pctrl = irq_data_get_irq_chip_data(d);
 
-	msm_gpio_irq_mask(d);
 	gpio_unlock_as_irq(&pctrl->chip, d->hwirq);
 }
 
@@ -832,8 +831,8 @@ static struct irq_chip msm_gpio_irq_chip = {
 	.irq_ack        = msm_gpio_irq_ack,
 	.irq_set_type   = msm_gpio_irq_set_type,
 	.irq_set_wake   = msm_gpio_irq_set_wake,
-	.irq_startup	= msm_gpio_irq_startup,
-	.irq_shutdown	= msm_gpio_irq_shutdown,
+	.irq_request_resources = msm_gpio_irq_reqres,
+	.irq_release_resources = msm_gpio_irq_relres,
 };
 
 static void msm_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index 53a11114927f..2ea3f3738eab 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -848,10 +848,6 @@ static unsigned int nmk_gpio_irq_startup(struct irq_data *d)
 {
 	struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d);
 
-	if (gpio_lock_as_irq(&nmk_chip->chip, d->hwirq))
-		dev_err(nmk_chip->chip.dev,
-			"unable to lock HW IRQ %lu for IRQ\n",
-			d->hwirq);
 	clk_enable(nmk_chip->clk);
 	nmk_gpio_irq_unmask(d);
 	return 0;
@@ -863,6 +859,25 @@ static void nmk_gpio_irq_shutdown(struct irq_data *d)
 
 	nmk_gpio_irq_mask(d);
 	clk_disable(nmk_chip->clk);
+}
+
+static int nmk_gpio_irq_reqres(struct irq_data *d)
+{
+	struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d);
+
+	if (gpio_lock_as_irq(&nmk_chip->chip, d->hwirq)) {
+		dev_err(nmk_chip->chip.dev,
+			"unable to lock HW IRQ %lu for IRQ\n",
+			d->hwirq);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void nmk_gpio_irq_relres(struct irq_data *d)
+{
+	struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d);
+
 	gpio_unlock_as_irq(&nmk_chip->chip, d->hwirq);
 }
 
@@ -875,6 +890,8 @@ static struct irq_chip nmk_gpio_irq_chip = {
 	.irq_set_wake	= nmk_gpio_irq_set_wake,
 	.irq_startup	= nmk_gpio_irq_startup,
 	.irq_shutdown	= nmk_gpio_irq_shutdown,
+	.irq_request_resources = nmk_gpio_irq_reqres,
+	.irq_release_resources = nmk_gpio_irq_relres,
 	.flags		= IRQCHIP_MASK_ON_SUSPEND,
 };
 
diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c
index 617a4916b50f..3ce6e258bc80 100644
--- a/drivers/pinctrl/sirf/pinctrl-sirf.c
+++ b/drivers/pinctrl/sirf/pinctrl-sirf.c
@@ -594,23 +594,23 @@ static int sirfsoc_gpio_irq_type(struct irq_data *d, unsigned type)
 	return 0;
 }
 
-static unsigned int sirfsoc_gpio_irq_startup(struct irq_data *d)
+static int sirfsoc_gpio_irq_reqres(struct irq_data *d)
 {
 	struct sirfsoc_gpio_bank *bank = irq_data_get_irq_chip_data(d);
 
-	if (gpio_lock_as_irq(&bank->chip.gc, d->hwirq % SIRFSOC_GPIO_BANK_SIZE))
+	if (gpio_lock_as_irq(&bank->chip.gc, d->hwirq % SIRFSOC_GPIO_BANK_SIZE)) {
 		dev_err(bank->chip.gc.dev,
 			"unable to lock HW IRQ %lu for IRQ\n",
 			d->hwirq);
-	sirfsoc_gpio_irq_unmask(d);
+		return -EINVAL;
+	}
 	return 0;
 }
 
-static void sirfsoc_gpio_irq_shutdown(struct irq_data *d)
+static void sirfsoc_gpio_irq_relres(struct irq_data *d)
 {
 	struct sirfsoc_gpio_bank *bank = irq_data_get_irq_chip_data(d);
 
-	sirfsoc_gpio_irq_mask(d);
 	gpio_unlock_as_irq(&bank->chip.gc, d->hwirq % SIRFSOC_GPIO_BANK_SIZE);
 }
 
@@ -620,8 +620,8 @@ static struct irq_chip sirfsoc_irq_chip = {
 	.irq_mask = sirfsoc_gpio_irq_mask,
 	.irq_unmask = sirfsoc_gpio_irq_unmask,
 	.irq_set_type = sirfsoc_gpio_irq_type,
-	.irq_startup = sirfsoc_gpio_irq_startup,
-	.irq_shutdown = sirfsoc_gpio_irq_shutdown,
+	.irq_request_resources = sirfsoc_gpio_irq_reqres,
+	.irq_release_resources = sirfsoc_gpio_irq_relres,
 };
 
 static void sirfsoc_gpio_handle_irq(unsigned int irq, struct irq_desc *desc)