linux-kernel - [PATCH -next] ARM: zx: Use devm_platform_ioremap

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Date:   Fri, 18 Sep 2020 16:04:50 +0800
From:   Wang ShaoBo <bobo.shaobowang@...wei.com>
To:     unlisted-recipients:; (no To-header on input)
CC:     <cj.chengjian@...wei.com>, <huawei.libin@...wei.com>,
        <olof@...om.net>, <gregkh@...uxfoundation.org>,
        <jun.nie@...aro.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH -next] ARM: zx: Use devm_platform_ioremap_resource()

Make use of devm_platform_ioremap_resource() provided by driver
core platform instead of duplicated analogue. dev_err() is
removed because it has been done in devm_ioremap_resource().

Signed-off-by: Wang ShaoBo <bobo.shaobowang@...wei.com>
---
 arch/arm/mach-zx/zx296702-pm-domain.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-zx/zx296702-pm-domain.c b/arch/arm/mach-zx/zx296702-pm-domain.c
index 7a08bf9dd792..8ddc94530d5d 100644
--- a/arch/arm/mach-zx/zx296702-pm-domain.c
+++ b/arch/arm/mach-zx/zx296702-pm-domain.c
@@ -152,7 +152,6 @@ static struct generic_pm_domain *zx296702_pm_domains[] = {
 static int zx296702_pd_probe(struct platform_device *pdev)
 {
 	struct genpd_onecell_data *genpd_data;
-	struct resource *res;
 	int i;
 
 	genpd_data = devm_kzalloc(&pdev->dev, sizeof(*genpd_data), GFP_KERNEL);
@@ -162,17 +161,9 @@ static int zx296702_pd_probe(struct platform_device *pdev)
 	genpd_data->domains = zx296702_pm_domains;
 	genpd_data->num_domains = ARRAY_SIZE(zx296702_pm_domains);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "no memory resource defined\n");
-		return -ENODEV;
-	}
-
-	pcubase = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(pcubase)) {
-		dev_err(&pdev->dev, "ioremap fail.\n");
+	pcubase = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(pcubase))
 		return -EIO;
-	}
 
 	for (i = 0; i < ARRAY_SIZE(zx296702_pm_domains); ++i)
 		pm_genpd_init(zx296702_pm_domains[i], NULL, false);
-- 
2.17.1