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authorThierry Reding <thierry.reding@avionic-design.de>2013-01-21 11:09:01 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-22 11:41:56 -0800
commit641d03422a59b1e790b7edabb16bc62da71130c3 (patch)
tree664b32773f331f9d0b60bd0feaae831791c1d3ff
parentc7c9e1c372452688f0ef2af794789bbd00f9fa51 (diff)
gpio: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpio/gpio-mvebu.c16
-rw-r--r--drivers/gpio/gpio-mxs.c9
-rw-r--r--drivers/gpio/gpio-spear-spics.c8
-rw-r--r--drivers/gpio/gpio-stp-xway.c9
-rw-r--r--drivers/gpio/gpio-tegra.c9
5 files changed, 25 insertions, 26 deletions
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 7d9bd94be8d2..bf6c7c989aee 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -33,6 +33,7 @@
* interrupts.
*/
+#include <linux/err.h>
#include <linux/module.h>
#include <linux/gpio.h>
#include <linux/irq.h>
@@ -544,11 +545,10 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
mvchip->chip.of_node = np;
spin_lock_init(&mvchip->lock);
- mvchip->membase = devm_request_and_ioremap(&pdev->dev, res);
- if (! mvchip->membase) {
- dev_err(&pdev->dev, "Cannot ioremap\n");
+ mvchip->membase = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(mvchip->membase)) {
kfree(mvchip->chip.label);
- return -ENOMEM;
+ return PTR_ERR(mvchip->membase);
}
/* The Armada XP has a second range of registers for the
@@ -561,11 +561,11 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
return -ENODEV;
}
- mvchip->percpu_membase = devm_request_and_ioremap(&pdev->dev, res);
- if (! mvchip->percpu_membase) {
- dev_err(&pdev->dev, "Cannot ioremap\n");
+ mvchip->percpu_membase = devm_ioremap_resource(&pdev->dev,
+ res);
+ if (IS_ERR(mvchip->percpu_membase)) {
kfree(mvchip->chip.label);
- return -ENOMEM;
+ return PTR_ERR(mvchip->percpu_membase);
}
}
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index fa2a63cad32e..45d97c46831a 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -20,6 +20,7 @@
* MA 02110-1301, USA.
*/
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
@@ -253,12 +254,14 @@ static int mxs_gpio_probe(struct platform_device *pdev)
parent = of_get_parent(np);
base = of_iomap(parent, 0);
of_node_put(parent);
+ if (!base)
+ return -EADDRNOTAVAIL;
} else {
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- base = devm_request_and_ioremap(&pdev->dev, iores);
+ base = devm_ioremap_resource(&pdev->dev, iores);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
}
- if (!base)
- return -EADDRNOTAVAIL;
}
port->base = base;
diff --git a/drivers/gpio/gpio-spear-spics.c b/drivers/gpio/gpio-spear-spics.c
index 5f45fc4ed5d1..7a4bf7c0d98f 100644
--- a/drivers/gpio/gpio-spear-spics.c
+++ b/drivers/gpio/gpio-spear-spics.c
@@ -140,11 +140,9 @@ static int spics_gpio_probe(struct platform_device *pdev)
return -ENOMEM;
}
- spics->base = devm_request_and_ioremap(&pdev->dev, res);
- if (!spics->base) {
- dev_err(&pdev->dev, "request and ioremap fail\n");
- return -ENOMEM;
- }
+ spics->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(spics->base))
+ return PTR_ERR(spics->base);
if (of_property_read_u32(np, "st-spics,peripcfg-reg",
&spics->perip_cfg))
diff --git a/drivers/gpio/gpio-stp-xway.c b/drivers/gpio/gpio-stp-xway.c
index 85841ee70b17..c20e05151212 100644
--- a/drivers/gpio/gpio-stp-xway.c
+++ b/drivers/gpio/gpio-stp-xway.c
@@ -214,11 +214,10 @@ static int xway_stp_probe(struct platform_device *pdev)
if (!chip)
return -ENOMEM;
- chip->virt = devm_request_and_ioremap(&pdev->dev, res);
- if (!chip->virt) {
- dev_err(&pdev->dev, "failed to remap STP memory\n");
- return -ENOMEM;
- }
+ chip->virt = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(chip->virt))
+ return PTR_ERR(chip->virt);
+
chip->gc.dev = &pdev->dev;
chip->gc.label = "stp-xway";
chip->gc.direction_output = xway_stp_dir_out;
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 63cb643d4b5a..414ad912232f 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -17,6 +17,7 @@
*
*/
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
@@ -450,11 +451,9 @@ static int tegra_gpio_probe(struct platform_device *pdev)
return -ENODEV;
}
- regs = devm_request_and_ioremap(&pdev->dev, res);
- if (!regs) {
- dev_err(&pdev->dev, "Couldn't ioremap regs\n");
- return -ENODEV;
- }
+ regs = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(regs))
+ return PTR_ERR(regs);
for (i = 0; i < tegra_gpio_bank_count; i++) {
for (j = 0; j < 4; j++) {