dm: core: Add functions to read 64-bit dt properties

This patch adds functions dev_read_u64_default & dev_read_u64
to read unsigned 64-bit values from devicetree.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
T Karthik Reddy 2019-09-02 16:34:30 +02:00 committed by Peng Fan
parent d3302395e7
commit 3f3d77158b
4 changed files with 45 additions and 2 deletions

View File

@ -79,7 +79,7 @@ int ofnode_read_u64(ofnode node, const char *propname, u64 *outp)
return 0;
}
int ofnode_read_u64_default(ofnode node, const char *propname, u64 def)
u64 ofnode_read_u64_default(ofnode node, const char *propname, u64 def)
{
assert(ofnode_valid(node));
ofnode_read_u64(node, propname, &def);

View File

@ -44,6 +44,16 @@ int dev_read_u32u(struct udevice *dev, const char *propname, uint *outp)
return 0;
}
int dev_read_u64(struct udevice *dev, const char *propname, u64 *outp)
{
return ofnode_read_u64(dev_ofnode(dev), propname, outp);
}
u64 dev_read_u64_default(struct udevice *dev, const char *propname, u64 def)
{
return ofnode_read_u64_default(dev_ofnode(dev), propname, def);
}
const char *dev_read_string(struct udevice *dev, const char *propname)
{
return ofnode_read_string(dev_ofnode(dev), propname);

View File

@ -254,7 +254,7 @@ int ofnode_read_u64(ofnode node, const char *propname, u64 *outp);
* @def: default value to return if the property has no value
* @return property value, or @def if not found
*/
int ofnode_read_u64_default(ofnode node, const char *propname, u64 def);
u64 ofnode_read_u64_default(ofnode node, const char *propname, u64 def);
/**
* ofnode_read_string() - Read a string from a property

View File

@ -44,6 +44,7 @@ static inline bool dev_of_valid(struct udevice *dev)
}
#ifndef CONFIG_DM_DEV_READ_INLINE
/**
* dev_read_u32() - read a 32-bit integer from a device's DT property
*
@ -96,6 +97,26 @@ int dev_read_s32_default(struct udevice *dev, const char *propname, int def);
*/
int dev_read_u32u(struct udevice *dev, const char *propname, uint *outp);
/**
* dev_read_u64() - read a 64-bit integer from a device's DT property
*
* @dev: device to read DT property from
* @propname: name of the property to read from
* @outp: place to put value (if found)
* @return 0 if OK, -ve on error
*/
int dev_read_u64(struct udevice *dev, const char *propname, u64 *outp);
/**
* dev_read_u64_default() - read a 64-bit integer from a device's DT property
*
* @dev: device to read DT property from
* @propname: name of the property to read from
* @def: default value to return if the property has no value
* @return property value, or @def if not found
*/
u64 dev_read_u64_default(struct udevice *dev, const char *propname, u64 def);
/**
* dev_read_string() - Read a string from a device's DT property
*
@ -601,6 +622,18 @@ static inline int dev_read_u32u(struct udevice *dev,
return 0;
}
static inline int dev_read_u64(struct udevice *dev,
const char *propname, u64 *outp)
{
return ofnode_read_u64(dev_ofnode(dev), propname, outp);
}
static inline u64 dev_read_u64_default(struct udevice *dev,
const char *propname, u64 def)
{
return ofnode_read_u64_default(dev_ofnode(dev), propname, def);
}
static inline const char *dev_read_string(struct udevice *dev,
const char *propname)
{