gpio: tegra186: Rename flow variable to type

The IRQ core code refers to the interrupt type by that name, whereas the
term flow is almost never used. Some GPIO controllers use the term
flow_type, but it is most consistent to just go with the IRQ core
terminology.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-tegra186.c

@@ -279,7 +279,7 @@ static void tegra186_irq_unmask(struct irq_data *data)
 	writel(value, base + TEGRA186_GPIO_ENABLE_CONFIG);
 }
 
-static int tegra186_irq_set_type(struct irq_data *data, unsigned int flow)
+static int tegra186_irq_set_type(struct irq_data *data, unsigned int type)
 {
 	struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data);
 	void __iomem *base;
@@ -293,7 +293,7 @@ static int tegra186_irq_set_type(struct irq_data *data, unsigned int flow)
 	value &= ~TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_MASK;
 	value &= ~TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_LEVEL;
 
-	switch (flow & IRQ_TYPE_SENSE_MASK) {
+	switch (type & IRQ_TYPE_SENSE_MASK) {
 	case IRQ_TYPE_NONE:
 		break;
 
@@ -325,7 +325,7 @@ static int tegra186_irq_set_type(struct irq_data *data, unsigned int flow)
 
 	writel(value, base + TEGRA186_GPIO_ENABLE_CONFIG);
 
-	if ((flow & IRQ_TYPE_EDGE_BOTH) == 0)
+	if ((type & IRQ_TYPE_EDGE_BOTH) == 0)
 		irq_set_handler_locked(data, handle_level_irq);
 	else
 		irq_set_handler_locked(data, handle_edge_irq);