[PATCH v2] dt: Add id to AUXDATA structure
From: John Bonesio <hidden>
Date: 2011-07-15 17:36:32
Subsystem:
open firmware and flattened device tree, the rest · Maintainers:
Rob Herring, Saravana Kannan, Linus Torvalds
This patch adds the ability to set the device id in the AUXDATA structure for those few device drivers that just have to have a statically defined device id. --- drivers/of/device.c | 4 ++-- drivers/of/platform.c | 10 +++++++--- include/linux/of_device.h | 8 +++++++- include/linux/of_platform.h | 7 ++++++- 4 files changed, 22 insertions(+), 7 deletions(-)
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 62b4b32..5445f79 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c@@ -47,14 +47,14 @@ void of_dev_put(struct platform_device *dev) } EXPORT_SYMBOL(of_dev_put); -int of_device_add(struct platform_device *ofdev) +int of_device_add_id(struct platform_device *ofdev, int id) { BUG_ON(ofdev->dev.of_node == NULL); /* name and id have to be set so that the platform bus doesn't get * confused on matching */ ofdev->name = dev_name(&ofdev->dev); - ofdev->id = -1; + ofdev->id = id; /* device_add will assume that this device is on the same node as * the parent. If there is no parent defined, set the node
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index c177345..e511fc7 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c@@ -190,6 +190,7 @@ EXPORT_SYMBOL(of_device_alloc); struct platform_device *of_platform_device_create_pdata( struct device_node *np, const char *bus_id, + int id, void *platform_data, struct device *parent) {
@@ -214,7 +215,7 @@ struct platform_device *of_platform_device_create_pdata( * to do such, possibly using a device notifier */ - if (of_device_add(dev) != 0) { + if (of_device_add_id(dev, id) != 0) { platform_device_put(dev); return NULL; }
@@ -235,7 +236,7 @@ struct platform_device *of_platform_device_create(struct device_node *np, const char *bus_id, struct device *parent) { - return of_platform_device_create_pdata(np, bus_id, NULL, parent); + return of_platform_device_create_pdata(np, bus_id, -1, NULL, parent); } EXPORT_SYMBOL(of_platform_device_create);
@@ -565,6 +566,7 @@ static int of_platform_bus_create(struct device_node *bus, struct platform_device *dev; const char *bus_id = NULL; void *platform_data = NULL; + int id = -1; int rc = 0; /* Make sure it has a compatible property */
@@ -585,6 +587,7 @@ static int of_platform_bus_create(struct device_node *bus, auxdata = of_dev_lookup(lookup, bus); if (auxdata) { bus_id = auxdata->name; + id = auxdata->id; platform_data = auxdata->platform_data; }
@@ -593,7 +596,8 @@ static int of_platform_bus_create(struct device_node *bus, return 0; } - dev = of_platform_device_create_pdata(bus, bus_id, platform_data, parent); + dev = of_platform_device_create_pdata(bus, bus_id, id, platform_data, parent); + if (!dev || !of_match_node(matches, bus)) return 0;
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index ae56384..74b944b 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h@@ -27,7 +27,13 @@ static inline int of_driver_match_device(struct device *dev, extern struct platform_device *of_dev_get(struct platform_device *dev); extern void of_dev_put(struct platform_device *dev); -extern int of_device_add(struct platform_device *pdev); +extern int of_device_add_id(struct platform_device *pdev, int id); + +static inline int of_device_add(struct platform_device *pdev) +{ + return of_device_add_id(pdev, -1); +} + extern int of_device_register(struct platform_device *ofdev); extern void of_device_unregister(struct platform_device *ofdev);
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index 40ce814..252246c 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h@@ -45,13 +45,18 @@ struct of_dev_auxdata { char *compatible; resource_size_t phys_addr; char *name; + int id; void *platform_data; }; /* Macro to simplify populating a lookup table */ #define OF_DEV_AUXDATA(_compat,_phys,_name,_pdata) \ { .compatible = _compat, .phys_addr = _phys, .name = _name, \ - .platform_data = _pdata } + .id = -1, .platform_data = _pdata } + +#define OF_DEV_AUXDATA_ID(_compat,_phys,_name,_id,_pdata) \ + { .compatible = _compat, .phys_addr = _phys, .name = _name, \ + .id = _id, .platform_data = _pdata } /** * of_platform_driver - Legacy of-aware driver for platform devices.