linux-kernel - [PATCH v4 6/7] gpio: ep93xx: refactor ep93xx_gpio_add

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Message-Id: <20210205080507.16007-7-nikita.shubin@maquefel.me>
Date:   Fri,  5 Feb 2021 11:05:06 +0300
From:   Nikita Shubin <nikita.shubin@...uefel.me>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Nikita Shubin <nikita.shubin@...uefel.me>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 6/7] gpio: ep93xx: refactor ep93xx_gpio_add_bank

- replace plain numbers with girq->num_parents in devm_kcalloc
- replace plain numbers with girq->num_parents for port F
- refactor i - 1 to i + 1 to make loop more readable
- combine getting IRQ's loop and setting handler's into single loop

Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
---
 drivers/gpio/gpio-ep93xx.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
index d330bff4d9f9..41b5b1de14f6 100644
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -380,7 +380,7 @@ static int ep93xx_gpio_add_bank(struct ep93xx_gpio_chip *egc,
 
 		girq->parent_handler = ep93xx_gpio_ab_irq_handler;
 		girq->num_parents = 1;
-		girq->parents = devm_kcalloc(dev, 1,
+		girq->parents = devm_kcalloc(dev, girq->num_parents,
 					     sizeof(*girq->parents),
 					     GFP_KERNEL);
 		if (!girq->parents)
@@ -402,15 +402,14 @@ static int ep93xx_gpio_add_bank(struct ep93xx_gpio_chip *egc,
 		 */
 		girq->parent_handler = ep93xx_gpio_f_irq_handler;
 		girq->num_parents = 8;
-		girq->parents = devm_kcalloc(dev, 8,
+		girq->parents = devm_kcalloc(dev, girq->num_parents,
 					     sizeof(*girq->parents),
 					     GFP_KERNEL);
 		if (!girq->parents)
 			return -ENOMEM;
 		/* Pick resources 1..8 for these IRQs */
-		for (i = 1; i <= 8; i++)
-			girq->parents[i - 1] = platform_get_irq(pdev, i);
-		for (i = 0; i < 8; i++) {
+		for (i = 0; i < girq->num_parents; i++) {
+			girq->parents[i] = platform_get_irq(pdev, i + 1);
 			gpio_irq = EP93XX_GPIO_F_IRQ_BASE + i;
 			irq_set_chip_data(gpio_irq, &epg->gc[5]);
 			irq_set_chip_and_handler(gpio_irq,
-- 
2.26.2