diff options
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 349c2754eed7..a09e7a681f7a 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -81,6 +81,26 @@ struct resource *platform_get_resource(struct platform_device *dev, EXPORT_SYMBOL_GPL(platform_get_resource); /** + * devm_platform_ioremap_resource - call devm_ioremap_resource() for a platform + * device + * + * @pdev: platform device to use both for memory resource lookup as well as + * resource managemend + * @index: resource index + */ +#ifdef CONFIG_HAS_IOMEM +void __iomem *devm_platform_ioremap_resource(struct platform_device *pdev, + unsigned int index) +{ + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_MEM, index); + return devm_ioremap_resource(&pdev->dev, res); +} +EXPORT_SYMBOL_GPL(devm_platform_ioremap_resource); +#endif /* CONFIG_HAS_IOMEM */ + +/** * platform_get_irq - get an IRQ for a device * @dev: platform device * @num: IRQ number index @@ -871,31 +891,11 @@ static ssize_t driver_override_store(struct device *dev, const char *buf, size_t count) { struct platform_device *pdev = to_platform_device(dev); - char *driver_override, *old, *cp; - - /* We need to keep extra room for a newline */ - if (count >= (PAGE_SIZE - 1)) - return -EINVAL; - - driver_override = kstrndup(buf, count, GFP_KERNEL); - if (!driver_override) - return -ENOMEM; - - cp = strchr(driver_override, '\n'); - if (cp) - *cp = '\0'; - - device_lock(dev); - old = pdev->driver_override; - if (strlen(driver_override)) { - pdev->driver_override = driver_override; - } else { - kfree(driver_override); - pdev->driver_override = NULL; - } - device_unlock(dev); + int ret; - kfree(old); + ret = driver_set_override(dev, &pdev->driver_override, buf, count); + if (ret) + return ret; return count; } |