jz4740-battery: Use devm_request_and_ioremap
No functional changes. Just a cleanup.
Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
diff --git a/drivers/power/jz4740-battery.c b/drivers/power/jz4740-battery.c
index 529d22a..fc7550d 100644
--- a/drivers/power/jz4740-battery.c
+++ b/drivers/power/jz4740-battery.c
@@ -33,7 +33,6 @@
struct jz_battery_platform_data *pdata;
struct platform_device *pdev;
- struct resource *mem;
void __iomem *base;
int irq;
@@ -244,6 +243,7 @@
struct jz_battery_platform_data *pdata = pdev->dev.parent->platform_data;
struct jz_battery *jz_battery;
struct power_supply *battery;
+ struct resource *mem;
if (!pdata) {
dev_err(&pdev->dev, "No platform_data supplied\n");
@@ -264,26 +264,11 @@
return jz_battery->irq;
}
- jz_battery->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!jz_battery->mem) {
- dev_err(&pdev->dev, "Failed to get platform mmio resource\n");
- return -ENOENT;
- }
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- jz_battery->mem = request_mem_region(jz_battery->mem->start,
- resource_size(jz_battery->mem), pdev->name);
- if (!jz_battery->mem) {
- dev_err(&pdev->dev, "Failed to request mmio memory region\n");
+ jz_battery->base = devm_request_and_ioremap(&pdev->dev, mem);
+ if (!jz_battery->base)
return -EBUSY;
- }
-
- jz_battery->base = ioremap_nocache(jz_battery->mem->start,
- resource_size(jz_battery->mem));
- if (!jz_battery->base) {
- ret = -EBUSY;
- dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
- goto err_release_mem_region;
- }
battery = &jz_battery->battery;
battery->name = pdata->info.name;
@@ -306,7 +291,7 @@
jz_battery);
if (ret) {
dev_err(&pdev->dev, "Failed to request irq %d\n", ret);
- goto err_iounmap;
+ goto err;
}
disable_irq(jz_battery->irq);
@@ -363,11 +348,8 @@
gpio_free(jz_battery->pdata->gpio_charge);
err_free_irq:
free_irq(jz_battery->irq, jz_battery);
-err_iounmap:
+err:
platform_set_drvdata(pdev, NULL);
- iounmap(jz_battery->base);
-err_release_mem_region:
- release_mem_region(jz_battery->mem->start, resource_size(jz_battery->mem));
return ret;
}
@@ -387,9 +369,6 @@
free_irq(jz_battery->irq, jz_battery);
- iounmap(jz_battery->base);
- release_mem_region(jz_battery->mem->start, resource_size(jz_battery->mem));
-
return 0;
}