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authorPrzemyslaw Marczak <p.marczak@samsung.com>2015-04-15 11:07:18 (GMT)
committerSimon Glass <sjg@chromium.org>2015-04-22 17:03:14 (GMT)
commit5eaed880282480a5a0a2b555c5f98a11252ed94e (patch)
tree72f503beff647cf7389f6579add462bf1b5a0727 /drivers
parentc1d6f91952d0761f61b0f0f96e4c7aa32eee2788 (diff)
downloadu-boot-5eaed880282480a5a0a2b555c5f98a11252ed94e.tar.xz
dm: core: Extend struct udevice by '.uclass_platdata' field.
This commit adds 'uclass_platdata' field to 'struct udevice', which can be automatically allocated at bind. The allocation size is defined in 'struct uclass_driver' as 'per_device_platdata_auto_alloc_size'. New device's flag is added: DM_FLAG_ALLOC_UCLASS_PDATA, which is used for memory freeing at device unbind method. As for other udevice's fields, a complementary function is added: - dev_get_uclass_platdata() Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/core/device-remove.c4
-rw-r--r--drivers/core/device.c33
2 files changed, 33 insertions, 4 deletions
diff --git a/drivers/core/device-remove.c b/drivers/core/device-remove.c
index 7fee1c0..6a16b4f 100644
--- a/drivers/core/device-remove.c
+++ b/drivers/core/device-remove.c
@@ -92,6 +92,10 @@ int device_unbind(struct udevice *dev)
free(dev->platdata);
dev->platdata = NULL;
}
+ if (dev->flags & DM_FLAG_ALLOC_UCLASS_PDATA) {
+ free(dev->uclass_platdata);
+ dev->uclass_platdata = NULL;
+ }
if (dev->flags & DM_FLAG_ALLOC_PARENT_PDATA) {
free(dev->parent_platdata);
dev->parent_platdata = NULL;
diff --git a/drivers/core/device.c b/drivers/core/device.c
index ccaa99c..80eb55b 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -30,7 +30,7 @@ int device_bind(struct udevice *parent, const struct driver *drv,
{
struct udevice *dev;
struct uclass *uc;
- int ret = 0;
+ int size, ret = 0;
*devp = NULL;
if (!name)
@@ -79,9 +79,19 @@ int device_bind(struct udevice *parent, const struct driver *drv,
goto fail_alloc1;
}
}
- if (parent) {
- int size = parent->driver->per_child_platdata_auto_alloc_size;
+ size = uc->uc_drv->per_device_platdata_auto_alloc_size;
+ if (size) {
+ dev->flags |= DM_FLAG_ALLOC_UCLASS_PDATA;
+ dev->uclass_platdata = calloc(1, size);
+ if (!dev->uclass_platdata) {
+ ret = -ENOMEM;
+ goto fail_alloc2;
+ }
+ }
+
+ if (parent) {
+ size = parent->driver->per_child_platdata_auto_alloc_size;
if (!size) {
size = parent->uclass->uc_drv->
per_child_platdata_auto_alloc_size;
@@ -91,7 +101,7 @@ int device_bind(struct udevice *parent, const struct driver *drv,
dev->parent_platdata = calloc(1, size);
if (!dev->parent_platdata) {
ret = -ENOMEM;
- goto fail_alloc2;
+ goto fail_alloc3;
}
}
}
@@ -139,6 +149,11 @@ fail_uclass_bind:
free(dev->parent_platdata);
dev->parent_platdata = NULL;
}
+fail_alloc3:
+ if (dev->flags & DM_FLAG_ALLOC_UCLASS_PDATA) {
+ free(dev->uclass_platdata);
+ dev->uclass_platdata = NULL;
+ }
fail_alloc2:
if (dev->flags & DM_FLAG_ALLOC_PDATA) {
free(dev->platdata);
@@ -314,6 +329,16 @@ void *dev_get_parent_platdata(struct udevice *dev)
return dev->parent_platdata;
}
+void *dev_get_uclass_platdata(struct udevice *dev)
+{
+ if (!dev) {
+ dm_warn("%s: null device", __func__);
+ return NULL;
+ }
+
+ return dev->uclass_platdata;
+}
+
void *dev_get_priv(struct udevice *dev)
{
if (!dev) {