Merge branch 'component-for-driver' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into driver-core-next
Russell writes:
These updates fix one bug in the component helper where the matched
components are not properly cleaned up when the master fails to bind.
I'll provide a version of this for stable trees if it's deemed that
we need to backport it.
The second patch causes the component helper to ignore duplicate
matches when adding components - this is something that was originally
needed for imx-drm, but since that has now been updated, we no longer
need to skip over a component which has already been matched.
The final patch starts the process of updating the component helper
API to achieve two goals: to allow the API to be more efficient when
deferred probing occurs, and to allow for future improvements to the
component helper without having a major impact on the users.
This represents groundwork for some other changes; once this has been
merged, I will then send two further pull requests (one for the staging
tree, and one for the DRM tree) to update the drivers to the new API.
This will result in these three commits being shared with those trees.
diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt
index 1525e30..de6bc8c 100644
--- a/Documentation/driver-model/devres.txt
+++ b/Documentation/driver-model/devres.txt
@@ -278,7 +278,6 @@
devm_ioremap_nocache()
devm_iounmap()
devm_ioremap_resource() : checks resource, requests memory region, ioremaps
- devm_request_and_ioremap() : obsoleted by devm_ioremap_resource()
pcim_iomap()
pcim_iounmap()
pcim_iomap_table() : array of mapped addresses indexed by BAR
diff --git a/drivers/bus/brcmstb_gisb.c b/drivers/bus/brcmstb_gisb.c
index 6159b77..f2cd6a2d 100644
--- a/drivers/bus/brcmstb_gisb.c
+++ b/drivers/bus/brcmstb_gisb.c
@@ -212,9 +212,9 @@
mutex_init(&gdev->lock);
INIT_LIST_HEAD(&gdev->next);
- gdev->base = devm_request_and_ioremap(&pdev->dev, r);
- if (!gdev->base)
- return -ENOMEM;
+ gdev->base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(gdev->base))
+ return PTR_ERR(gdev->base);
err = devm_request_irq(&pdev->dev, timeout_irq,
brcmstb_gisb_timeout_handler, 0, pdev->name,
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index 81c34f9..3aedf9e 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -1039,11 +1039,9 @@
if (ret)
return ret;
- base = devm_request_and_ioremap(dev->dev, res);
- if (!base) {
- DRM_ERROR("failed to ioremap register\n");
- return -ENOMEM;
- }
+ base = devm_ioremap_resource(dev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
dcrtc = kzalloc(sizeof(*dcrtc), GFP_KERNEL);
if (!dcrtc) {
diff --git a/include/linux/device.h b/include/linux/device.h
index af424ac..921fa0a 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -631,8 +631,6 @@
extern void devm_free_pages(struct device *dev, unsigned long addr);
void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);
-void __iomem *devm_request_and_ioremap(struct device *dev,
- struct resource *res);
/* allows to add/remove a custom action to devres stack */
int devm_add_action(struct device *dev, void (*action)(void *), void *data);
diff --git a/lib/devres.c b/lib/devres.c
index f562bf6..6a4aee8 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -142,34 +142,6 @@
}
EXPORT_SYMBOL(devm_ioremap_resource);
-/**
- * devm_request_and_ioremap() - Check, request region, and ioremap resource
- * @dev: Generic device to handle the resource for
- * @res: resource to be handled
- *
- * Takes all necessary steps to ioremap a mem resource. Uses managed device, so
- * everything is undone on driver detach. Checks arguments, so you can feed
- * it the result from e.g. platform_get_resource() directly. Returns the
- * remapped pointer or NULL on error. Usage example:
- *
- * res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- * base = devm_request_and_ioremap(&pdev->dev, res);
- * if (!base)
- * return -EADDRNOTAVAIL;
- */
-void __iomem *devm_request_and_ioremap(struct device *dev,
- struct resource *res)
-{
- void __iomem *dest_ptr;
-
- dest_ptr = devm_ioremap_resource(dev, res);
- if (IS_ERR(dest_ptr))
- return NULL;
-
- return dest_ptr;
-}
-EXPORT_SYMBOL(devm_request_and_ioremap);
-
#ifdef CONFIG_HAS_IOPORT_MAP
/*
* Generic iomap devres
diff --git a/scripts/coccinelle/api/devm_ioremap_resource.cocci b/scripts/coccinelle/api/devm_ioremap_resource.cocci
deleted file mode 100644
index 495daa3..0000000
--- a/scripts/coccinelle/api/devm_ioremap_resource.cocci
+++ /dev/null
@@ -1,90 +0,0 @@
-virtual patch
-virtual report
-
-@depends on patch@
-expression base, dev, res;
-@@
-
--base = devm_request_and_ioremap(dev, res);
-+base = devm_ioremap_resource(dev, res);
- ...
- if (
--base == NULL
-+IS_ERR(base)
- || ...) {
-<...
-- return ...;
-+ return PTR_ERR(base);
-...>
- }
-
-@depends on patch@
-expression e, E, ret;
-identifier l;
-@@
-
- e = devm_ioremap_resource(...);
- ...
- if (IS_ERR(e) || ...) {
- ... when any
-- ret = E;
-+ ret = PTR_ERR(e);
- ...
-(
- return ret;
-|
- goto l;
-)
- }
-
-@depends on patch@
-expression e;
-@@
-
- e = devm_ioremap_resource(...);
- ...
- if (IS_ERR(e) || ...) {
- ...
-- \(dev_dbg\|dev_err\|pr_debug\|pr_err\|DRM_ERROR\)(...);
- ...
- }
-
-@depends on patch@
-expression e;
-identifier l;
-@@
-
- e = devm_ioremap_resource(...);
- ...
- if (IS_ERR(e) || ...)
--{
-(
- return ...;
-|
- goto l;
-)
--}
-
-@r depends on report@
-expression e;
-identifier l;
-position p1;
-@@
-
-*e = devm_request_and_ioremap@p1(...);
- ...
- if (e == NULL || ...) {
- ...
-(
- return ...;
-|
- goto l;
-)
- }
-
-@script:python depends on r@
-p1 << r.p1;
-@@
-
-msg = "ERROR: deprecated devm_request_and_ioremap() API used on line %s" % (p1[0].line)
-coccilib.report.print_report(p1[0], msg)