linux-kernel - [PATCH 1/2] pinctrl: mvebu: armada-37xx: use use platform api

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Message-ID: <1576672860-14420-1-git-send-email-peng.fan@nxp.com>
Date:   Wed, 18 Dec 2019 12:43:53 +0000
From:   Peng Fan <peng.fan@....com>
To:     "jason@...edaemon.net" <jason@...edaemon.net>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "gregory.clement@...tlin.com" <gregory.clement@...tlin.com>,
        "sebastian.hesselbarth@...il.com" <sebastian.hesselbarth@...il.com>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "mripard@...nel.org" <mripard@...nel.org>,
        "wens@...e.org" <wens@...e.org>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Peng Fan <peng.fan@....com>
Subject: [PATCH 1/2] pinctrl: mvebu: armada-37xx: use use platform api

From: Peng Fan <peng.fan@....com>

platform_irq_count() and platform_get_irq() is the more generic
way (independent of device trees) to determine the count of available
interrupts. So use this instead.

As platform_irq_count() might return an error code (which
of_irq_count doesn't) some additional handling is necessary.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index aa9dcde0f069..cc66a6429a06 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -15,7 +15,6 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_device.h>
-#include <linux/of_irq.h>
 #include <linux/pinctrl/pinconf-generic.h>
 #include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinctrl.h>
@@ -739,7 +738,14 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
 		return ret;
 	}
 
-	nr_irq_parent = of_irq_count(np);
+	nr_irq_parent = platform_irq_count(pdev);
+	if (nr_irq_parent < 0) {
+		if (nr_irq_parent != -EPROBE_DEFER)
+			dev_err(dev, "Couldn't determine irq count: %pe\n",
+				ERR_PTR(nr_irq_parent));
+		return nr_irq_parent;
+	}
+
 	spin_lock_init(&info->irq_lock);
 
 	if (!nr_irq_parent) {
@@ -776,7 +782,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
 	if (!girq->parents)
 		return -ENOMEM;
 	for (i = 0; i < nr_irq_parent; i++) {
-		int irq = irq_of_parse_and_map(np, i);
+		int irq = platform_get_irq(pdev, i);
 
 		if (irq < 0)
 			continue;
-- 
2.16.4