[PATCH v2 2/4] drivers: of: initialize and assign reserved memory to newly created devices

From: Marek Szyprowski
Date: Mon Jul 14 2014 - 03:33:52 EST


Use recently introduced of_reserved_mem_device_init() function to
automatically assign respective reserved memory region to the newly created
platform and amba device.

Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/of/platform.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 6c48d73a7fd7..a7f967866f13 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -21,6 +21,7 @@
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
+#include <linux/of_reserved_mem.h>
#include <linux/platform_device.h>

const struct of_device_id of_default_bus_match_table[] = {
@@ -237,12 +238,15 @@ static struct platform_device *of_platform_device_create_pdata(
dev->dev.bus = &platform_bus_type;
dev->dev.platform_data = platform_data;

+ of_reserved_mem_device_init(&dev->dev);
+
/* We do not fill the DMA ops for platform devices by default.
* This is currently the responsibility of the platform code
* to do such, possibly using a device notifier
*/

if (of_device_add(dev) != 0) {
+ of_reserved_mem_device_release(&dev->dev);
platform_device_put(dev);
goto err_clear_flag;
}
@@ -304,6 +308,8 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
else
of_device_make_bus_id(&dev->dev);

+ of_reserved_mem_device_init(&dev->dev);
+
/* Allow the HW Peripheral ID to be overridden */
prop = of_get_property(node, "arm,primecell-periphid", NULL);
if (prop)
@@ -330,6 +336,7 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
return dev;

err_free:
+ of_reserved_mem_device_release(&dev->dev);
amba_device_put(dev);
err_clear_flag:
of_node_clear_flag(node, OF_POPULATED);
--
1.9.2

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