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core: read: add dev_read_addr_size_index_ptr function

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Add dev_read_addr_size_index_ptr function with the same functionality as
dev_read_addr_size_index, but instead a return pointer is given.
Use map_sysmem() function as cast for the return.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jonas Karlman 2023-07-22 13:30:15 +00:00 committed by Kever Yang
parent e5b33200f8
commit 5e030632d4
2 changed files with 32 additions and 0 deletions
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11
drivers/core/read.c
View file

@ -150,6 +150,17 @@ fdt_addr_t dev_read_addr_size_index(const struct udevice *dev, int index,
return devfdt_get_addr_size_index(dev, index, size);
}
void *dev_read_addr_size_index_ptr(const struct udevice *dev, int index,
fdt_size_t *size)
{
fdt_addr_t addr = dev_read_addr_size_index(dev, index, size);
if (addr == FDT_ADDR_T_NONE)
return NULL;
return map_sysmem(addr, 0);
}
void *dev_remap_addr_index(const struct udevice *dev, int index)
{
fdt_addr_t addr = dev_read_addr_index(dev, index);

21
include/dm/read.h
View file

@ -246,6 +246,20 @@ void *dev_read_addr_index_ptr(const struct udevice *dev, int index);
fdt_addr_t dev_read_addr_size_index(const struct udevice *dev, int index,
fdt_size_t *size);
/**
* dev_read_addr_size_index_ptr() - Get the indexed reg property of a device
* as a pointer
*
* @dev: Device to read from
* @index: the 'reg' property can hold a list of <addr, size> pairs
* and @index is used to select which one is required
* @size: place to put size value (on success)
*
* Return: pointer or NULL if not found
*/
void *dev_read_addr_size_index_ptr(const struct udevice *dev, int index,
fdt_size_t *size);
/**
* dev_remap_addr_index() - Get the indexed reg property of a device
* as a memory-mapped I/O pointer
@ -952,6 +966,13 @@ static inline fdt_addr_t dev_read_addr_size_index(const struct udevice *dev,
return devfdt_get_addr_size_index(dev, index, size);
}
static inline void *dev_read_addr_size_index_ptr(const struct udevice *dev,
int index,
fdt_size_t *size)
{
return devfdt_get_addr_size_index_ptr(dev, index, size);
}
static inline fdt_addr_t dev_read_addr_name(const struct udevice *dev,
const char *name)
{