[PATCH v11 7/9] gpio: pl061: keep the parent device in a local

[Long Zhao via B4 Relay <devnull+longzhao.ambarella.com@kernel.org>]

From: Long Zhao <longzhao@ambarella.com>

IRQ logging uses gc->parent. Keep that device in a local so the
gpio-regmap switch can change where it comes from without rewriting
every log line.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Long Zhao <longzhao@ambarella.com>
---
 drivers/gpio/gpio-pl061.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index bbf457a12851..585871ff2519 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -157,6 +157,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct pl061 *pl061 = gpiochip_get_data(gc);
+	struct device *parent = gc->parent;
 	int offset = irqd_to_hwirq(d);
 	unsigned int bit = BIT(offset);
 	unsigned int gpioiev = 0;
@@ -167,7 +168,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
 		return -EINVAL;
 
 	if ((trigger & IRQ_TYPE_LEVEL_MASK) && (trigger & IRQ_TYPE_EDGE_BOTH)) {
-		dev_err(gc->parent,
+		dev_err(parent,
 			"trying to configure line %d for both level and edge "
 			"detection, choose one!\n",
 			offset);
@@ -193,7 +194,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
 		else
 			gpioiev &= ~bit;
 		irq_set_handler_locked(d, handle_level_irq);
-		dev_dbg(gc->parent, "line %d: IRQ on %s level\n",
+		dev_dbg(parent, "line %d: IRQ on %s level\n",
 			offset,
 			polarity ? "HIGH" : "LOW");
 	} else if ((trigger & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) {
@@ -202,7 +203,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
 		/* Select both edges, setting this makes GPIOEV be ignored */
 		gpioibe |= bit;
 		irq_set_handler_locked(d, handle_edge_irq);
-		dev_dbg(gc->parent, "line %d: IRQ on both edges\n", offset);
+		dev_dbg(parent, "line %d: IRQ on both edges\n", offset);
 	} else if ((trigger & IRQ_TYPE_EDGE_RISING) ||
 		   (trigger & IRQ_TYPE_EDGE_FALLING)) {
 		bool rising = trigger & IRQ_TYPE_EDGE_RISING;
@@ -217,7 +218,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
 		else
 			gpioiev &= ~bit;
 		irq_set_handler_locked(d, handle_edge_irq);
-		dev_dbg(gc->parent, "line %d: IRQ on %s edge\n",
+		dev_dbg(parent, "line %d: IRQ on %s edge\n",
 			offset,
 			rising ? "RISING" : "FALLING");
 	} else {
@@ -226,7 +227,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
 		gpioibe &= ~bit;
 		gpioiev &= ~bit;
 		irq_set_handler_locked(d, handle_bad_irq);
-		dev_warn(gc->parent, "no trigger selected for line %d\n",
+		dev_warn(parent, "no trigger selected for line %d\n",
 			 offset);
 	}
 
@@ -308,8 +309,9 @@ static int pl061_irq_set_wake(struct irq_data *d, unsigned int state)
 static void pl061_irq_print_chip(struct irq_data *data, struct seq_file *p)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+	struct device *parent = gc->parent;
 
-	seq_puts(p, dev_name(gc->parent));
+	seq_puts(p, dev_name(parent));
 }
 
 static const struct irq_chip pl061_irq_chip = {

-- 
2.34.1