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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-14 21:41:49 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-14 21:41:49 +0200
commit4d88e3d24905eafa98cef0fc29365649ad8977b5 (patch)
treec32759600e903194e252ac47925f83745225791d /drivers/of
parentMerge tag 'pinctrl-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
parentDocumentation: remove dynamic-resolution-notes reference to non-existent file (diff)
downloadlinux-4d88e3d24905eafa98cef0fc29365649ad8977b5.tar.xz
linux-4d88e3d24905eafa98cef0fc29365649ad8977b5.zip
Merge tag 'devicetree-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring: - Remove an obsolete hack for PPC32 longtrail systems - Make of_io_request_and_map() "name" arg optional - Add vendor prefixes for bitmain, Asus, and Y Soft - Remove 'interrupt-parent' from bindings as it is implicit - New properties for wm8994 audio codec - Add 'clocks' property support to SRAM binding - Add binding for ASPEED coprocessor interrupt controller - Various binding spelling and link fixes * tag 'devicetree-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: Documentation: remove dynamic-resolution-notes reference to non-existent file dt-bindings: Add Y Soft Corporation vendor prefix of/fdt: Remove PPC32 longtrail hack in memory scan dt-bindings: remove 'interrupt-parent' from bindings pinctrl: tegra: fix spelling in devicetree binding document usb: dwc3: rockchip: Fix PHY documentation links. dt-bindings: sound: wm8994: document wlf,csnaddr-pd property dt-bindings: sound: wm8994: document wlf,spkmode-pu property dt-bindings: sram: Add 'clocks' as an optional property dt-bindings: Add vendor prefix for AsusTek Computer Inc. dt-bindings: misc: ASPEED coprocessor interrupt controller dt-bindings: gpio: pca953x: Document interrupts, update example drivers/of: Make of_io_request_and_map() "name" argument optional dt-bindings: Add bitmain vendor prefix Documentation: devicetree: tilcdc: fix spelling mistake "suppors" -> "supports"
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/address.c6
-rw-r--r--drivers/of/fdt.c9
2 files changed, 5 insertions, 10 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 53349912ac75..7ddbf0a1ab86 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -846,7 +846,7 @@ EXPORT_SYMBOL(of_iomap);
* for a given device_node
* @device: the device whose io range will be mapped
* @index: index of the io range
- * @name: name of the resource
+ * @name: name "override" for the memory region request or NULL
*
* Returns a pointer to the requested and mapped memory or an ERR_PTR() encoded
* error code on failure. Usage example:
@@ -856,7 +856,7 @@ EXPORT_SYMBOL(of_iomap);
* return PTR_ERR(base);
*/
void __iomem *of_io_request_and_map(struct device_node *np, int index,
- const char *name)
+ const char *name)
{
struct resource res;
void __iomem *mem;
@@ -864,6 +864,8 @@ void __iomem *of_io_request_and_map(struct device_node *np, int index,
if (of_address_to_resource(np, index, &res))
return IOMEM_ERR_PTR(-EINVAL);
+ if (!name)
+ name = res.name;
if (!request_mem_region(res.start, resource_size(&res), name))
return IOMEM_ERR_PTR(-EBUSY);
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 6da20b9688f7..800ad252cf9c 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1034,14 +1034,7 @@ int __init early_init_dt_scan_memory(unsigned long node, const char *uname,
bool hotpluggable;
/* We are scanning "memory" nodes only */
- if (type == NULL) {
- /*
- * The longtrail doesn't have a device_type on the
- * /memory node, so look for the node called /memory@0.
- */
- if (!IS_ENABLED(CONFIG_PPC32) || depth != 1 || strcmp(uname, "memory@0") != 0)
- return 0;
- } else if (strcmp(type, "memory") != 0)
+ if (type == NULL || strcmp(type, "memory") != 0)
return 0;
reg = of_get_flat_dt_prop(node, "linux,usable-memory", &l);