linux-kernel - [PATCH v8 07/14] gpio: thunderx: Use the default parent apis for {request,release}

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Date:   Tue, 30 Apr 2019 15:42:23 +0530
From:   Lokesh Vutla <lokeshvutla@...com>
To:     Marc Zyngier <marc.zyngier@....com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, Nishanth Menon <nm@...com>,
        <tglx@...utronix.de>, <jason@...edaemon.net>
CC:     Linux ARM Mailing List <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Tero Kristo <t-kristo@...com>,
        Sekhar Nori <nsekhar@...com>, Tony Lindgren <tony@...mide.com>,
        <linus.walleij@...aro.org>, Peter Ujfalusi <peter.ujfalusi@...com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Device Tree Mailing List <devicetree@...r.kernel.org>,
        <linux-gpio@...r.kernel.org>
Subject: [PATCH v8 07/14] gpio: thunderx: Use the default parent apis for {request,release}_resources

thunderx_gpio_irq_{request,release}_resources apis are trying to
{request,release} resources on parent interrupt. There are default
apis doing the same. Use the default parent apis instead of writing
the same code snippet.

Cc: linux-gpio@...r.kernel.org
Cc: Linus Walleij <linus.walleij@...aro.org>
Acked-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@...com>
---
Changes since v7:
- None

 drivers/gpio/gpio-thunderx.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/gpio/gpio-thunderx.c b/drivers/gpio/gpio-thunderx.c
index 1306722faa5a..715371b5102a 100644
--- a/drivers/gpio/gpio-thunderx.c
+++ b/drivers/gpio/gpio-thunderx.c
@@ -363,22 +363,16 @@ static int thunderx_gpio_irq_request_resources(struct irq_data *data)
 {
 	struct thunderx_line *txline = irq_data_get_irq_chip_data(data);
 	struct thunderx_gpio *txgpio = txline->txgpio;
-	struct irq_data *parent_data = data->parent_data;
 	int r;
 
 	r = gpiochip_lock_as_irq(&txgpio->chip, txline->line);
 	if (r)
 		return r;
 
-	if (parent_data && parent_data->chip->irq_request_resources) {
-		r = parent_data->chip->irq_request_resources(parent_data);
-		if (r)
-			goto error;
-	}
+	r = irq_chip_request_resources_parent(data);
+	if (r)
+		gpiochip_unlock_as_irq(&txgpio->chip, txline->line);
 
-	return 0;
-error:
-	gpiochip_unlock_as_irq(&txgpio->chip, txline->line);
 	return r;
 }
 
@@ -386,10 +380,8 @@ static void thunderx_gpio_irq_release_resources(struct irq_data *data)
 {
 	struct thunderx_line *txline = irq_data_get_irq_chip_data(data);
 	struct thunderx_gpio *txgpio = txline->txgpio;
-	struct irq_data *parent_data = data->parent_data;
 
-	if (parent_data && parent_data->chip->irq_release_resources)
-		parent_data->chip->irq_release_resources(parent_data);
+	irq_chip_release_resources_parent(data);
 
 	gpiochip_unlock_as_irq(&txgpio->chip, txline->line);
 }
-- 
2.21.0