of_find_device_by_node() works only with platform devices. Lets create one for amba devices as well.
Cc: Frank Rowand <[email protected]> Cc: [email protected] Signed-off-by: Viresh Kumar <[email protected]> --- drivers/of/platform.c | 20 ++++++++++++++++++++ include/linux/of_platform.h | 9 +++++++++ 2 files changed, 29 insertions(+) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index ac15d0e3d27d..b38a8e5908a3 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -60,6 +60,26 @@ struct platform_device *of_find_device_by_node(struct device_node *np) } EXPORT_SYMBOL(of_find_device_by_node); +#ifdef CONFIG_ARM_AMBA +/** + * of_find_amba_device_by_node - Find the amba_device associated with a node + * @np: Pointer to device tree node + * + * Takes a reference to the embedded struct device which needs to be dropped + * after use. + * + * Returns amba_device pointer, or NULL if not found + */ +struct amba_device *of_find_amba_device_by_node(struct device_node *np) +{ + struct device *dev; + + dev = bus_find_device(&amba_bustype, NULL, np, of_dev_node_match); + return dev ? to_amba_device(dev) : NULL; +} +EXPORT_SYMBOL(of_find_amba_device_by_node); +#endif + #ifdef CONFIG_OF_ADDRESS /* * The following routines scan a subtree and registers a device for diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h index 8a561e08bc9e..fbf8a6443885 100644 --- a/include/linux/of_platform.h +++ b/include/linux/of_platform.h @@ -61,6 +61,15 @@ static inline struct platform_device *of_find_device_by_node(struct device_node } #endif +#if defined(CONFIG_OF) && defined(CONFIG_ARM_AMBA) +extern struct amba_device *of_find_amba_device_by_node(struct device_node *np); +#else +static inline struct amba_device *of_find_amba_device_by_node(struct device_node *np) +{ + return NULL; +} +#endif + #ifdef CONFIG_OF_ADDRESS /* Platform drivers register/unregister */ extern struct platform_device *of_device_alloc(struct device_node *np, -- 2.15.0.rc1.236.g92ea95045093
