Commit 780bfdd3 authored by Bin Meng's avatar Bin Meng Committed by Simon Glass

dm: cpu: Add a new get_count method to cpu uclass

Introduce a new method 'get_count' in the UCLASS_CPU ops to get
the number of CPUs in the system.
Signed-off-by: default avatarBin Meng <bmeng.cn@gmail.com>
Acked-by: default avatarSimon Glass <sjg@chromium.org>
parent 4c71322b
......@@ -32,6 +32,16 @@ int cpu_get_info(struct udevice *dev, struct cpu_info *info)
return ops->get_info(dev, info);
}
int cpu_get_count(struct udevice *dev)
{
struct cpu_ops *ops = cpu_get_ops(dev);
if (!ops->get_count)
return -ENOSYS;
return ops->get_count(dev);
}
U_BOOT_DRIVER(cpu_bus) = {
.name = "cpu_bus",
.id = UCLASS_SIMPLE_BUS,
......
......@@ -58,6 +58,14 @@ struct cpu_ops {
* @return 0 if OK, -ve on error
*/
int (*get_info)(struct udevice *dev, struct cpu_info *info);
/**
* get_count() - Get number of CPUs
*
* @dev: Device to check (UCLASS_CPU)
* @return CPU count if OK, -ve on error
*/
int (*get_count)(struct udevice *dev);
};
#define cpu_get_ops(dev) ((struct cpu_ops *)(dev)->driver->ops)
......@@ -81,4 +89,12 @@ int cpu_get_desc(struct udevice *dev, char *buf, int size);
*/
int cpu_get_info(struct udevice *dev, struct cpu_info *info);
/**
* cpu_get_count() - Get number of CPUs
*
* @dev: Device to check (UCLASS_CPU)
* @return CPU count if OK, -ve on error
*/
int cpu_get_count(struct udevice *dev);
#endif
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