Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core patches from Greg Kroah-Hartman:
 "Here is the big driver core merge for 3.9-rc1

  There are two major series here, both of which touch lots of drivers
  all over the kernel, and will cause you some merge conflicts:

   - add a new function called devm_ioremap_resource() to properly be
     able to check return values.

   - remove CONFIG_EXPERIMENTAL

  Other than those patches, there's not much here, some minor fixes and
  updates"

Fix up trivial conflicts

* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
  base: memory: fix soft/hard_offline_page permissions
  drivercore: Fix ordering between deferred_probe and exiting initcalls
  backlight: fix class_find_device() arguments
  TTY: mark tty_get_device call with the proper const values
  driver-core: constify data for class_find_device()
  firmware: Ignore abort check when no user-helper is used
  firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
  firmware: Make user-mode helper optional
  firmware: Refactoring for splitting user-mode helper code
  Driver core: treat unregistered bus_types as having no devices
  watchdog: Convert to devm_ioremap_resource()
  thermal: Convert to devm_ioremap_resource()
  spi: Convert to devm_ioremap_resource()
  power: Convert to devm_ioremap_resource()
  mtd: Convert to devm_ioremap_resource()
  mmc: Convert to devm_ioremap_resource()
  mfd: Convert to devm_ioremap_resource()
  media: Convert to devm_ioremap_resource()
  iommu: Convert to devm_ioremap_resource()
  drm: Convert to devm_ioremap_resource()
  ...

7 files changed, 27 insertions, 30 deletions

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index e5116fa85140..1855a6fd2b0a 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -66,7 +66,7 @@ config DEBUG_GPIO
 
 config GPIO_SYSFS
         bool "/sys/class/gpio/... (sysfs interface)"
-        depends on SYSFS && EXPERIMENTAL
+        depends on SYSFS
         help
           Say Y here to add a sysfs interface for GPIOs.
 
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 6819d63cb167..7472182967ce 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 +545,9 @@ 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");
-                return -ENOMEM;
-        }
+        mvchip->membase = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(mvchip->membase))
+                return PTR_ERR(mvchip->membase);
 
         /* The Armada XP has a second range of registers for the
          * per-CPU registers */
@@ -559,11 +558,10 @@ 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");
-                        return -ENOMEM;
-                }
+                mvchip->percpu_membase = devm_ioremap_resource(&pdev->dev,
+                                                               res);
+                if (IS_ERR(mvchip->percpu_membase)) 
+                        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++) {
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 199fca15f270..5359ca78130f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -806,7 +806,7 @@ fail_unlock:
 }
 EXPORT_SYMBOL_GPL(gpio_export);
 
-static int match_export(struct device *dev, void *data)
+static int match_export(struct device *dev, const void *data)
 {
         return dev_get_drvdata(dev) == data;
 }