1097 lines
33 KiB
C
1097 lines
33 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Function to read values from the device tree node attached to a udevice.
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*
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* Copyright (c) 2017 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#ifndef _DM_READ_H
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#define _DM_READ_H
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#include <linux/errno.h>
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#include <dm/device.h>
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#include <dm/fdtaddr.h>
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#include <dm/ofnode.h>
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#include <dm/uclass.h>
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struct resource;
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#if CONFIG_IS_ENABLED(OF_LIVE)
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static inline const struct device_node *dev_np(const struct udevice *dev)
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{
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return ofnode_to_np(dev_ofnode(dev));
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}
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#else
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static inline const struct device_node *dev_np(const struct udevice *dev)
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{
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return NULL;
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}
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#endif
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#if !defined(CONFIG_DM_DEV_READ_INLINE) || CONFIG_IS_ENABLED(OF_PLATDATA)
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/**
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* dev_read_u32() - read a 32-bit integer from a device's DT property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @outp: place to put value (if found)
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* @return 0 if OK, -ve on error
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*/
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int dev_read_u32(const struct udevice *dev, const char *propname, u32 *outp);
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/**
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* dev_read_u32_default() - read a 32-bit integer from a device's DT property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @def: default value to return if the property has no value
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* @return property value, or @def if not found
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*/
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int dev_read_u32_default(const struct udevice *dev, const char *propname,
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int def);
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/**
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* dev_read_u32_index() - read an indexed 32-bit integer from a device's DT
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* property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @index: index of the integer to return
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* @outp: place to put value (if found)
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* @return 0 if OK, -ve on error
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*/
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int dev_read_u32_index(struct udevice *dev, const char *propname, int index,
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u32 *outp);
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/**
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* dev_read_u32_index_default() - read an indexed 32-bit integer from a device's
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* DT property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @index: index of the integer to return
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* @def: default value to return if the property has no value
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* @return property value, or @def if not found
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*/
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u32 dev_read_u32_index_default(struct udevice *dev, const char *propname,
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int index, u32 def);
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/**
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* dev_read_s32() - read a signed 32-bit integer from a device's DT property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @outp: place to put value (if found)
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* @return 0 if OK, -ve on error
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*/
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int dev_read_s32(const struct udevice *dev, const char *propname, s32 *outp);
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/**
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* dev_read_s32_default() - read a signed 32-bit int from a device's DT property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @def: default value to return if the property has no value
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* @return property value, or @def if not found
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*/
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int dev_read_s32_default(const struct udevice *dev, const char *propname,
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int def);
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/**
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* dev_read_u32u() - read a 32-bit integer from a device's DT property
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*
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* This version uses a standard uint type.
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @outp: place to put value (if found)
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* @return 0 if OK, -ve on error
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*/
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int dev_read_u32u(const struct udevice *dev, const char *propname, uint *outp);
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/**
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* dev_read_u64() - read a 64-bit integer from a device's DT property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @outp: place to put value (if found)
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* @return 0 if OK, -ve on error
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*/
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int dev_read_u64(const struct udevice *dev, const char *propname, u64 *outp);
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/**
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* dev_read_u64_default() - read a 64-bit integer from a device's DT property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read from
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* @def: default value to return if the property has no value
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* @return property value, or @def if not found
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*/
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u64 dev_read_u64_default(const struct udevice *dev, const char *propname,
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u64 def);
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/**
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* dev_read_string() - Read a string from a device's DT property
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*
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* @dev: device to read DT property from
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* @propname: name of the property to read
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* @return string from property value, or NULL if there is no such property
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*/
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const char *dev_read_string(const struct udevice *dev, const char *propname);
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/**
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* dev_read_bool() - read a boolean value from a device's DT property
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*
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* @dev: device to read DT property from
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* @propname: name of property to read
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* @return true if property is present (meaning true), false if not present
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*/
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bool dev_read_bool(const struct udevice *dev, const char *propname);
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/**
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* dev_read_subnode() - find a named subnode of a device
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*
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* @dev: device whose DT node contains the subnode
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* @subnode_name: name of subnode to find
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* @return reference to subnode (which can be invalid if there is no such
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* subnode)
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*/
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ofnode dev_read_subnode(const struct udevice *dev, const char *subbnode_name);
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/**
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* dev_read_size() - read the size of a property
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*
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* @dev: device to check
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* @propname: property to check
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* @return size of property if present, or -EINVAL if not
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*/
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int dev_read_size(const struct udevice *dev, const char *propname);
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/**
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* dev_read_addr_index() - Get the indexed reg property of a device
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*
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* @dev: Device to read from
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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*
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* @return address or FDT_ADDR_T_NONE if not found
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*/
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fdt_addr_t dev_read_addr_index(const struct udevice *dev, int index);
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/**
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* dev_read_addr_index_ptr() - Get the indexed reg property of a device
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* as a pointer
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*
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* @dev: Device to read from
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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*
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* @return pointer or NULL if not found
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*/
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void *dev_read_addr_index_ptr(const struct udevice *dev, int index);
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/**
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* dev_read_addr_size_index() - Get the indexed reg property of a device
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*
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* @dev: Device to read from
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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* @size: place to put size value (on success)
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*
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* @return address or FDT_ADDR_T_NONE if not found
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*/
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fdt_addr_t dev_read_addr_size_index(const struct udevice *dev, int index,
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fdt_size_t *size);
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/**
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* dev_remap_addr_index() - Get the indexed reg property of a device
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* as a memory-mapped I/O pointer
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*
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* @dev: Device to read from
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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*
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* @return pointer or NULL if not found
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*/
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void *dev_remap_addr_index(const struct udevice *dev, int index);
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/**
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* dev_read_addr_name() - Get the reg property of a device, indexed by name
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*
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* @dev: Device to read from
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* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
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* 'reg-names' property providing named-based identification. @index
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* indicates the value to search for in 'reg-names'.
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*
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* @return address or FDT_ADDR_T_NONE if not found
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*/
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fdt_addr_t dev_read_addr_name(const struct udevice *dev, const char *name);
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/**
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* dev_read_addr_size_name() - Get the reg property of a device, indexed by name
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*
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* @dev: Device to read from
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* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
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* 'reg-names' property providing named-based identification. @index
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* indicates the value to search for in 'reg-names'.
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* @size: place to put size value (on success)
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*
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* @return address or FDT_ADDR_T_NONE if not found
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*/
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fdt_addr_t dev_read_addr_size_name(const struct udevice *dev, const char *name,
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fdt_size_t *size);
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/**
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* dev_remap_addr_name() - Get the reg property of a device, indexed by name,
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* as a memory-mapped I/O pointer
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*
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* @dev: Device to read from
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* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
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* 'reg-names' property providing named-based identification. @index
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* indicates the value to search for in 'reg-names'.
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*
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* @return pointer or NULL if not found
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*/
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void *dev_remap_addr_name(const struct udevice *dev, const char *name);
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/**
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* dev_read_addr() - Get the reg property of a device
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*
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* @dev: Device to read from
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*
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* @return address or FDT_ADDR_T_NONE if not found
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*/
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fdt_addr_t dev_read_addr(const struct udevice *dev);
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/**
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* dev_read_addr_ptr() - Get the reg property of a device
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* as a pointer
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*
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* @dev: Device to read from
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*
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* @return pointer or NULL if not found
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*/
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void *dev_read_addr_ptr(const struct udevice *dev);
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/**
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* dev_read_addr_pci() - Read an address and handle PCI address translation
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*
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* At present U-Boot does not have address translation logic for PCI in the
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* livetree implementation (of_addr.c). This special function supports this for
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* the flat tree implementation.
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*
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* This function should be removed (and code should use dev_read() instead)
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* once:
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*
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* 1. PCI address translation is added; and either
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* 2. everything uses livetree where PCI translation is used (which is feasible
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* in SPL and U-Boot proper) or PCI address translation is added to
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* fdtdec_get_addr() and friends.
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*
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* @dev: Device to read from
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* @return address or FDT_ADDR_T_NONE if not found
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*/
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fdt_addr_t dev_read_addr_pci(const struct udevice *dev);
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/**
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* dev_remap_addr() - Get the reg property of a device as a
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* memory-mapped I/O pointer
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*
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* @dev: Device to read from
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*
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* @return pointer or NULL if not found
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*/
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void *dev_remap_addr(const struct udevice *dev);
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/**
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* dev_read_addr_size() - get address and size from a device property
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*
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* This does no address translation. It simply reads an property that contains
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* an address and a size value, one after the other.
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*
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* @dev: Device to read from
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* @propname: property to read
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* @sizep: place to put size value (on success)
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* @return address value, or FDT_ADDR_T_NONE on error
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*/
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fdt_addr_t dev_read_addr_size(const struct udevice *dev, const char *propname,
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fdt_size_t *sizep);
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/**
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* dev_read_name() - get the name of a device's node
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*
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* @dev: Device to read from
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* @return name of node
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*/
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const char *dev_read_name(const struct udevice *dev);
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/**
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* dev_read_stringlist_search() - find string in a string list and return index
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*
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* Note that it is possible for this function to succeed on property values
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* that are not NUL-terminated. That's because the function will stop after
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* finding the first occurrence of @string. This can for example happen with
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* small-valued cell properties, such as #address-cells, when searching for
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* the empty string.
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*
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* @dev: device to check
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* @propname: name of the property containing the string list
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* @string: string to look up in the string list
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*
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* @return:
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* the index of the string in the list of strings
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* -ENODATA if the property is not found
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* -EINVAL on some other error
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*/
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int dev_read_stringlist_search(const struct udevice *dev, const char *property,
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const char *string);
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/**
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* dev_read_string_index() - obtain an indexed string from a string list
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*
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* @dev: device to examine
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* @propname: name of the property containing the string list
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* @index: index of the string to return
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* @out: return location for the string
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*
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* @return:
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* length of string, if found or -ve error value if not found
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*/
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int dev_read_string_index(const struct udevice *dev, const char *propname,
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int index, const char **outp);
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/**
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* dev_read_string_count() - find the number of strings in a string list
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*
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* @dev: device to examine
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* @propname: name of the property containing the string list
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* @return:
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* number of strings in the list, or -ve error value if not found
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*/
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int dev_read_string_count(const struct udevice *dev, const char *propname);
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/**
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* dev_read_phandle_with_args() - Find a node pointed by phandle in a list
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*
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* This function is useful to parse lists of phandles and their arguments.
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* Returns 0 on success and fills out_args, on error returns appropriate
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* errno value.
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*
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* Caller is responsible to call of_node_put() on the returned out_args->np
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* pointer.
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*
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* Example:
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*
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* phandle1: node1 {
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* #list-cells = <2>;
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* }
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*
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* phandle2: node2 {
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* #list-cells = <1>;
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* }
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*
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* node3 {
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* list = <&phandle1 1 2 &phandle2 3>;
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* }
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*
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* To get a device_node of the `node2' node you may call this:
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* dev_read_phandle_with_args(dev, "list", "#list-cells", 0, 1, &args);
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*
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* @dev: device whose node containing a list
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* @list_name: property name that contains a list
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* @cells_name: property name that specifies phandles' arguments count
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* @cells_count: Cell count to use if @cells_name is NULL
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* @index: index of a phandle to parse out
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* @out_args: optional pointer to output arguments structure (will be filled)
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* @return 0 on success (with @out_args filled out if not NULL), -ENOENT if
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* @list_name does not exist, -EINVAL if a phandle was not found,
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* @cells_name could not be found, the arguments were truncated or there
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* were too many arguments.
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*/
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int dev_read_phandle_with_args(const struct udevice *dev, const char *list_name,
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const char *cells_name, int cell_count,
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int index, struct ofnode_phandle_args *out_args);
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/**
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* dev_count_phandle_with_args() - Return phandle number in a list
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*
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* This function is usefull to get phandle number contained in a property list.
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* For example, this allows to allocate the right amount of memory to keep
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* clock's reference contained into the "clocks" property.
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*
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*
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* @dev: device whose node containing a list
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* @list_name: property name that contains a list
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* @cells_name: property name that specifies phandles' arguments count
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* @cells_count: Cell count to use if @cells_name is NULL
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* @Returns number of phandle found on success, on error returns appropriate
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* errno value.
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*/
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int dev_count_phandle_with_args(const struct udevice *dev,
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const char *list_name, const char *cells_name,
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int cell_count);
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/**
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* dev_read_addr_cells() - Get the number of address cells for a device's node
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*
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* This walks back up the tree to find the closest #address-cells property
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* which controls the given node.
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*
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* @dev: device to check
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* @return number of address cells this node uses
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*/
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int dev_read_addr_cells(const struct udevice *dev);
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/**
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* dev_read_size_cells() - Get the number of size cells for a device's node
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*
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* This walks back up the tree to find the closest #size-cells property
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* which controls the given node.
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*
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* @dev: device to check
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* @return number of size cells this node uses
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*/
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int dev_read_size_cells(const struct udevice *dev);
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/**
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* dev_read_addr_cells() - Get the address cells property in a node
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*
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* This function matches fdt_address_cells().
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*
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* @dev: device to check
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* @return number of address cells this node uses
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*/
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int dev_read_simple_addr_cells(const struct udevice *dev);
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/**
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* dev_read_size_cells() - Get the size cells property in a node
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*
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* This function matches fdt_size_cells().
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*
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* @dev: device to check
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* @return number of size cells this node uses
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*/
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int dev_read_simple_size_cells(const struct udevice *dev);
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/**
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* dev_read_phandle() - Get the phandle from a device
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*
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* @dev: device to check
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* @return phandle (1 or greater), or 0 if no phandle or other error
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*/
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int dev_read_phandle(const struct udevice *dev);
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/**
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* dev_read_prop()- - read a property from a device's node
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*
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* @dev: device to check
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* @propname: property to read
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* @lenp: place to put length on success
|
|
* @return pointer to property, or NULL if not found
|
|
*/
|
|
const void *dev_read_prop(const struct udevice *dev, const char *propname,
|
|
int *lenp);
|
|
|
|
/**
|
|
* dev_read_first_prop()- get the reference of the first property
|
|
*
|
|
* Get reference to the first property of the node, it is used to iterate
|
|
* and read all the property with dev_read_prop_by_prop().
|
|
*
|
|
* @dev: device to check
|
|
* @prop: place to put argument reference
|
|
* @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
|
|
*/
|
|
int dev_read_first_prop(const struct udevice *dev, struct ofprop *prop);
|
|
|
|
/**
|
|
* ofnode_get_next_property() - get the reference of the next property
|
|
*
|
|
* Get reference to the next property of the node, it is used to iterate
|
|
* and read all the property with dev_read_prop_by_prop().
|
|
*
|
|
* @prop: reference of current argument and place to put reference of next one
|
|
* @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
|
|
*/
|
|
int dev_read_next_prop(struct ofprop *prop);
|
|
|
|
/**
|
|
* dev_read_prop_by_prop() - get a pointer to the value of a property
|
|
*
|
|
* Get value for the property identified by the provided reference.
|
|
*
|
|
* @prop: reference on property
|
|
* @propname: If non-NULL, place to property name on success,
|
|
* @lenp: If non-NULL, place to put length on success
|
|
* @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
|
|
*/
|
|
const void *dev_read_prop_by_prop(struct ofprop *prop,
|
|
const char **propname, int *lenp);
|
|
|
|
/**
|
|
* dev_read_alias_seq() - Get the alias sequence number of a node
|
|
*
|
|
* This works out whether a node is pointed to by an alias, and if so, the
|
|
* sequence number of that alias. Aliases are of the form <base><num> where
|
|
* <num> is the sequence number. For example spi2 would be sequence number 2.
|
|
*
|
|
* @dev: device to look up
|
|
* @devnump: set to the sequence number if one is found
|
|
* @return 0 if a sequence was found, -ve if not
|
|
*/
|
|
int dev_read_alias_seq(const struct udevice *dev, int *devnump);
|
|
|
|
/**
|
|
* dev_read_u32_array() - Find and read an array of 32 bit integers
|
|
*
|
|
* Search for a property in a device node and read 32-bit value(s) from
|
|
* it.
|
|
*
|
|
* The out_values is modified only if a valid u32 value can be decoded.
|
|
*
|
|
* @dev: device to look up
|
|
* @propname: name of the property to read
|
|
* @out_values: pointer to return value, modified only if return value is 0
|
|
* @sz: number of array elements to read
|
|
* @return 0 on success, -EINVAL if the property does not exist, -ENODATA if
|
|
* property does not have a value, and -EOVERFLOW if the property data isn't
|
|
* large enough.
|
|
*/
|
|
int dev_read_u32_array(const struct udevice *dev, const char *propname,
|
|
u32 *out_values, size_t sz);
|
|
|
|
/**
|
|
* dev_read_first_subnode() - find the first subnode of a device's node
|
|
*
|
|
* @dev: device to look up
|
|
* @return reference to the first subnode (which can be invalid if the device's
|
|
* node has no subnodes)
|
|
*/
|
|
ofnode dev_read_first_subnode(const struct udevice *dev);
|
|
|
|
/**
|
|
* ofnode_next_subnode() - find the next sibling of a subnode
|
|
*
|
|
* @node: valid reference to previous node (sibling)
|
|
* @return reference to the next subnode (which can be invalid if the node
|
|
* has no more siblings)
|
|
*/
|
|
ofnode dev_read_next_subnode(ofnode node);
|
|
|
|
/**
|
|
* dev_read_u8_array_ptr() - find an 8-bit array
|
|
*
|
|
* Look up a device's node property and return a pointer to its contents as a
|
|
* byte array of given length. The property must have at least enough data
|
|
* for the array (count bytes). It may have more, but this will be ignored.
|
|
* The data is not copied.
|
|
*
|
|
* @dev: device to look up
|
|
* @propname: name of property to find
|
|
* @sz: number of array elements
|
|
* @return pointer to byte array if found, or NULL if the property is not
|
|
* found or there is not enough data
|
|
*/
|
|
const uint8_t *dev_read_u8_array_ptr(const struct udevice *dev,
|
|
const char *propname, size_t sz);
|
|
|
|
/**
|
|
* dev_read_enabled() - check whether a node is enabled
|
|
*
|
|
* This looks for a 'status' property. If this exists, then returns 1 if
|
|
* the status is 'ok' and 0 otherwise. If there is no status property,
|
|
* it returns 1 on the assumption that anything mentioned should be enabled
|
|
* by default.
|
|
*
|
|
* @dev: device to examine
|
|
* @return integer value 0 (not enabled) or 1 (enabled)
|
|
*/
|
|
int dev_read_enabled(const struct udevice *dev);
|
|
|
|
/**
|
|
* dev_read_resource() - obtain an indexed resource from a device.
|
|
*
|
|
* @dev: device to examine
|
|
* @index index of the resource to retrieve (0 = first)
|
|
* @res returns the resource
|
|
* @return 0 if ok, negative on error
|
|
*/
|
|
int dev_read_resource(const struct udevice *dev, uint index,
|
|
struct resource *res);
|
|
|
|
/**
|
|
* dev_read_resource_byname() - obtain a named resource from a device.
|
|
*
|
|
* @dev: device to examine
|
|
* @name: name of the resource to retrieve
|
|
* @res: returns the resource
|
|
* @return 0 if ok, negative on error
|
|
*/
|
|
int dev_read_resource_byname(const struct udevice *dev, const char *name,
|
|
struct resource *res);
|
|
|
|
/**
|
|
* dev_translate_address() - Translate a device-tree address
|
|
*
|
|
* Translate an address from the device-tree into a CPU physical address. This
|
|
* function walks up the tree and applies the various bus mappings along the
|
|
* way.
|
|
*
|
|
* @dev: device giving the context in which to translate the address
|
|
* @in_addr: pointer to the address to translate
|
|
* @return the translated address; OF_BAD_ADDR on error
|
|
*/
|
|
u64 dev_translate_address(const struct udevice *dev, const fdt32_t *in_addr);
|
|
|
|
/**
|
|
* dev_translate_dma_address() - Translate a device-tree DMA address
|
|
*
|
|
* Translate a DMA address from the device-tree into a CPU physical address.
|
|
* This function walks up the tree and applies the various bus mappings along
|
|
* the way.
|
|
*
|
|
* @dev: device giving the context in which to translate the DMA address
|
|
* @in_addr: pointer to the DMA address to translate
|
|
* @return the translated DMA address; OF_BAD_ADDR on error
|
|
*/
|
|
u64 dev_translate_dma_address(const struct udevice *dev,
|
|
const fdt32_t *in_addr);
|
|
|
|
/**
|
|
* dev_get_dma_range() - Get a device's DMA constraints
|
|
*
|
|
* Provide the address bases and size of the linear mapping between the CPU and
|
|
* a device's BUS address space.
|
|
*
|
|
* @dev: device giving the context in which to translate the DMA address
|
|
* @cpu: base address for CPU's view of memory
|
|
* @bus: base address for BUS's view of memory
|
|
* @size: size of the address space
|
|
* @return 0 if ok, negative on error
|
|
*/
|
|
int dev_get_dma_range(const struct udevice *dev, phys_addr_t *cpu,
|
|
dma_addr_t *bus, u64 *size);
|
|
|
|
/**
|
|
* dev_read_alias_highest_id - Get highest alias id for the given stem
|
|
* @stem: Alias stem to be examined
|
|
*
|
|
* The function travels the lookup table to get the highest alias id for the
|
|
* given alias stem.
|
|
* @return alias ID, if found, else -1
|
|
*/
|
|
int dev_read_alias_highest_id(const char *stem);
|
|
|
|
/**
|
|
* dev_get_child_count() - get the child count of a device
|
|
*
|
|
* @dev: device to use for interation (struct udevice *)
|
|
* @return the count of child subnode
|
|
*/
|
|
int dev_get_child_count(const struct udevice *dev);
|
|
|
|
/**
|
|
* dev_read_pci_bus_range - Read PCI bus-range resource
|
|
*
|
|
* Look at the bus range property of a device node and return the pci bus
|
|
* range for this node.
|
|
*
|
|
* @dev: device to examine
|
|
* @res returns the resource
|
|
* @return 0 if ok, negative on error
|
|
*/
|
|
int dev_read_pci_bus_range(const struct udevice *dev, struct resource *res);
|
|
|
|
/**
|
|
* dev_decode_display_timing() - decode display timings
|
|
*
|
|
* Decode display timings from the supplied 'display-timings' node.
|
|
* See doc/device-tree-bindings/video/display-timing.txt for binding
|
|
* information.
|
|
*
|
|
* @dev: device to read DT display timings from. The node linked to the device
|
|
* contains a child node called 'display-timings' which in turn contains
|
|
* one or more display timing nodes.
|
|
* @index: index number to read (0=first timing subnode)
|
|
* @config: place to put timings
|
|
* @return 0 if OK, -FDT_ERR_NOTFOUND if not found
|
|
*/
|
|
int dev_decode_display_timing(const struct udevice *dev, int index,
|
|
struct display_timing *config);
|
|
|
|
#else /* CONFIG_DM_DEV_READ_INLINE is enabled */
|
|
#include <asm/global_data.h>
|
|
|
|
static inline int dev_read_u32(const struct udevice *dev,
|
|
const char *propname, u32 *outp)
|
|
{
|
|
return ofnode_read_u32(dev_ofnode(dev), propname, outp);
|
|
}
|
|
|
|
static inline int dev_read_u32_default(const struct udevice *dev,
|
|
const char *propname, int def)
|
|
{
|
|
return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
|
|
}
|
|
|
|
static inline int dev_read_u32_index(struct udevice *dev,
|
|
const char *propname, int index, u32 *outp)
|
|
{
|
|
return ofnode_read_u32_index(dev_ofnode(dev), propname, index, outp);
|
|
}
|
|
|
|
static inline u32 dev_read_u32_index_default(struct udevice *dev,
|
|
const char *propname, int index,
|
|
u32 def)
|
|
{
|
|
return ofnode_read_u32_index_default(dev_ofnode(dev), propname, index,
|
|
def);
|
|
}
|
|
|
|
static inline int dev_read_s32(const struct udevice *dev,
|
|
const char *propname, s32 *outp)
|
|
{
|
|
return ofnode_read_s32(dev_ofnode(dev), propname, outp);
|
|
}
|
|
|
|
static inline int dev_read_s32_default(const struct udevice *dev,
|
|
const char *propname, int def)
|
|
{
|
|
return ofnode_read_s32_default(dev_ofnode(dev), propname, def);
|
|
}
|
|
|
|
static inline int dev_read_u32u(const struct udevice *dev,
|
|
const char *propname, uint *outp)
|
|
{
|
|
u32 val;
|
|
int ret;
|
|
|
|
ret = ofnode_read_u32(dev_ofnode(dev), propname, &val);
|
|
if (ret)
|
|
return ret;
|
|
*outp = val;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int dev_read_u64(const struct udevice *dev,
|
|
const char *propname, u64 *outp)
|
|
{
|
|
return ofnode_read_u64(dev_ofnode(dev), propname, outp);
|
|
}
|
|
|
|
static inline u64 dev_read_u64_default(const 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(const struct udevice *dev,
|
|
const char *propname)
|
|
{
|
|
return ofnode_read_string(dev_ofnode(dev), propname);
|
|
}
|
|
|
|
static inline bool dev_read_bool(const struct udevice *dev,
|
|
const char *propname)
|
|
{
|
|
return ofnode_read_bool(dev_ofnode(dev), propname);
|
|
}
|
|
|
|
static inline ofnode dev_read_subnode(const struct udevice *dev,
|
|
const char *subbnode_name)
|
|
{
|
|
return ofnode_find_subnode(dev_ofnode(dev), subbnode_name);
|
|
}
|
|
|
|
static inline int dev_read_size(const struct udevice *dev, const char *propname)
|
|
{
|
|
return ofnode_read_size(dev_ofnode(dev), propname);
|
|
}
|
|
|
|
static inline fdt_addr_t dev_read_addr_index(const struct udevice *dev,
|
|
int index)
|
|
{
|
|
return devfdt_get_addr_index(dev, index);
|
|
}
|
|
|
|
static inline void *dev_read_addr_index_ptr(const struct udevice *dev,
|
|
int index)
|
|
{
|
|
return devfdt_get_addr_index_ptr(dev, index);
|
|
}
|
|
|
|
static inline fdt_addr_t dev_read_addr_size_index(const struct udevice *dev,
|
|
int index,
|
|
fdt_size_t *size)
|
|
{
|
|
return devfdt_get_addr_size_index(dev, index, size);
|
|
}
|
|
|
|
static inline fdt_addr_t dev_read_addr_name(const struct udevice *dev,
|
|
const char *name)
|
|
{
|
|
return devfdt_get_addr_name(dev, name);
|
|
}
|
|
|
|
static inline fdt_addr_t dev_read_addr_size_name(const struct udevice *dev,
|
|
const char *name,
|
|
fdt_size_t *size)
|
|
{
|
|
return devfdt_get_addr_size_name(dev, name, size);
|
|
}
|
|
|
|
static inline fdt_addr_t dev_read_addr(const struct udevice *dev)
|
|
{
|
|
return devfdt_get_addr(dev);
|
|
}
|
|
|
|
static inline void *dev_read_addr_ptr(const struct udevice *dev)
|
|
{
|
|
return devfdt_get_addr_ptr(dev);
|
|
}
|
|
|
|
static inline fdt_addr_t dev_read_addr_pci(const struct udevice *dev)
|
|
{
|
|
return devfdt_get_addr_pci(dev);
|
|
}
|
|
|
|
static inline void *dev_remap_addr(const struct udevice *dev)
|
|
{
|
|
return devfdt_remap_addr(dev);
|
|
}
|
|
|
|
static inline void *dev_remap_addr_index(const struct udevice *dev, int index)
|
|
{
|
|
return devfdt_remap_addr_index(dev, index);
|
|
}
|
|
|
|
static inline void *dev_remap_addr_name(const struct udevice *dev,
|
|
const char *name)
|
|
{
|
|
return devfdt_remap_addr_name(dev, name);
|
|
}
|
|
|
|
static inline fdt_addr_t dev_read_addr_size(const struct udevice *dev,
|
|
const char *propname,
|
|
fdt_size_t *sizep)
|
|
{
|
|
return ofnode_get_addr_size(dev_ofnode(dev), propname, sizep);
|
|
}
|
|
|
|
static inline const char *dev_read_name(const struct udevice *dev)
|
|
{
|
|
return ofnode_get_name(dev_ofnode(dev));
|
|
}
|
|
|
|
static inline int dev_read_stringlist_search(const struct udevice *dev,
|
|
const char *propname,
|
|
const char *string)
|
|
{
|
|
return ofnode_stringlist_search(dev_ofnode(dev), propname, string);
|
|
}
|
|
|
|
static inline int dev_read_string_index(const struct udevice *dev,
|
|
const char *propname, int index,
|
|
const char **outp)
|
|
{
|
|
return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp);
|
|
}
|
|
|
|
static inline int dev_read_string_count(const struct udevice *dev,
|
|
const char *propname)
|
|
{
|
|
return ofnode_read_string_count(dev_ofnode(dev), propname);
|
|
}
|
|
|
|
static inline int dev_read_phandle_with_args(const struct udevice *dev,
|
|
const char *list_name, const char *cells_name, int cell_count,
|
|
int index, struct ofnode_phandle_args *out_args)
|
|
{
|
|
return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name,
|
|
cells_name, cell_count, index,
|
|
out_args);
|
|
}
|
|
|
|
static inline int dev_count_phandle_with_args(const struct udevice *dev,
|
|
const char *list_name, const char *cells_name, int cell_count)
|
|
{
|
|
return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name,
|
|
cells_name, cell_count);
|
|
}
|
|
|
|
static inline int dev_read_addr_cells(const struct udevice *dev)
|
|
{
|
|
int parent = fdt_parent_offset(gd->fdt_blob, dev_of_offset(dev));
|
|
|
|
return fdt_address_cells(gd->fdt_blob, parent);
|
|
}
|
|
|
|
static inline int dev_read_size_cells(const struct udevice *dev)
|
|
{
|
|
int parent = fdt_parent_offset(gd->fdt_blob, dev_of_offset(dev));
|
|
|
|
return fdt_size_cells(gd->fdt_blob, parent);
|
|
}
|
|
|
|
static inline int dev_read_simple_addr_cells(const struct udevice *dev)
|
|
{
|
|
return fdt_address_cells(gd->fdt_blob, dev_of_offset(dev));
|
|
}
|
|
|
|
static inline int dev_read_simple_size_cells(const struct udevice *dev)
|
|
{
|
|
return fdt_size_cells(gd->fdt_blob, dev_of_offset(dev));
|
|
}
|
|
|
|
static inline int dev_read_phandle(const struct udevice *dev)
|
|
{
|
|
return fdt_get_phandle(gd->fdt_blob, dev_of_offset(dev));
|
|
}
|
|
|
|
static inline const void *dev_read_prop(const struct udevice *dev,
|
|
const char *propname, int *lenp)
|
|
{
|
|
return ofnode_get_property(dev_ofnode(dev), propname, lenp);
|
|
}
|
|
|
|
static inline int dev_read_first_prop(const struct udevice *dev, struct ofprop *prop)
|
|
{
|
|
return ofnode_get_first_property(dev_ofnode(dev), prop);
|
|
}
|
|
|
|
static inline int dev_read_next_prop(struct ofprop *prop)
|
|
{
|
|
return ofnode_get_next_property(prop);
|
|
}
|
|
|
|
static inline const void *dev_read_prop_by_prop(struct ofprop *prop,
|
|
const char **propname,
|
|
int *lenp)
|
|
{
|
|
return ofnode_get_property_by_prop(prop, propname, lenp);
|
|
}
|
|
|
|
static inline int dev_read_alias_seq(const struct udevice *dev, int *devnump)
|
|
{
|
|
#if CONFIG_IS_ENABLED(OF_CONTROL)
|
|
return fdtdec_get_alias_seq(gd->fdt_blob, dev->uclass->uc_drv->name,
|
|
dev_of_offset(dev), devnump);
|
|
#else
|
|
return -ENOTSUPP;
|
|
#endif
|
|
}
|
|
|
|
static inline int dev_read_u32_array(const struct udevice *dev,
|
|
const char *propname, u32 *out_values,
|
|
size_t sz)
|
|
{
|
|
return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz);
|
|
}
|
|
|
|
static inline ofnode dev_read_first_subnode(const struct udevice *dev)
|
|
{
|
|
return ofnode_first_subnode(dev_ofnode(dev));
|
|
}
|
|
|
|
static inline ofnode dev_read_next_subnode(ofnode node)
|
|
{
|
|
return ofnode_next_subnode(node);
|
|
}
|
|
|
|
static inline const uint8_t *dev_read_u8_array_ptr(const struct udevice *dev,
|
|
const char *propname,
|
|
size_t sz)
|
|
{
|
|
return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz);
|
|
}
|
|
|
|
static inline int dev_read_enabled(const struct udevice *dev)
|
|
{
|
|
return fdtdec_get_is_enabled(gd->fdt_blob, dev_of_offset(dev));
|
|
}
|
|
|
|
static inline int dev_read_resource(const struct udevice *dev, uint index,
|
|
struct resource *res)
|
|
{
|
|
return ofnode_read_resource(dev_ofnode(dev), index, res);
|
|
}
|
|
|
|
static inline int dev_read_resource_byname(const struct udevice *dev,
|
|
const char *name,
|
|
struct resource *res)
|
|
{
|
|
return ofnode_read_resource_byname(dev_ofnode(dev), name, res);
|
|
}
|
|
|
|
static inline u64 dev_translate_address(const struct udevice *dev,
|
|
const fdt32_t *in_addr)
|
|
{
|
|
return ofnode_translate_address(dev_ofnode(dev), in_addr);
|
|
}
|
|
|
|
static inline u64 dev_translate_dma_address(const struct udevice *dev,
|
|
const fdt32_t *in_addr)
|
|
{
|
|
return ofnode_translate_dma_address(dev_ofnode(dev), in_addr);
|
|
}
|
|
|
|
static inline int dev_get_dma_range(const struct udevice *dev, phys_addr_t *cpu,
|
|
dma_addr_t *bus, u64 *size)
|
|
{
|
|
return ofnode_get_dma_range(dev_ofnode(dev), cpu, bus, size);
|
|
}
|
|
|
|
static inline int dev_read_alias_highest_id(const char *stem)
|
|
{
|
|
if (!CONFIG_IS_ENABLED(OF_LIBFDT) || !gd->fdt_blob)
|
|
return -1;
|
|
return fdtdec_get_alias_highest_id(gd->fdt_blob, stem);
|
|
}
|
|
|
|
static inline int dev_get_child_count(const struct udevice *dev)
|
|
{
|
|
return ofnode_get_child_count(dev_ofnode(dev));
|
|
}
|
|
|
|
static inline int dev_decode_display_timing(const struct udevice *dev,
|
|
int index,
|
|
struct display_timing *config)
|
|
{
|
|
return ofnode_decode_display_timing(dev_ofnode(dev), index, config);
|
|
}
|
|
|
|
#endif /* CONFIG_DM_DEV_READ_INLINE */
|
|
|
|
/**
|
|
* dev_for_each_subnode() - Helper function to iterate through subnodes
|
|
*
|
|
* This creates a for() loop which works through the subnodes in a device's
|
|
* device-tree node.
|
|
*
|
|
* @subnode: ofnode holding the current subnode
|
|
* @dev: device to use for interation (struct udevice *)
|
|
*/
|
|
#define dev_for_each_subnode(subnode, dev) \
|
|
for (subnode = dev_read_first_subnode(dev); \
|
|
ofnode_valid(subnode); \
|
|
subnode = ofnode_next_subnode(subnode))
|
|
|
|
/**
|
|
* dev_for_each_property() - Helper function to iterate through property
|
|
*
|
|
* This creates a for() loop which works through the property in a device's
|
|
* device-tree node.
|
|
*
|
|
* @prop: struct ofprop holding the current property
|
|
* @dev: device to use for interation (struct udevice *)
|
|
*/
|
|
#define dev_for_each_property(prop, dev) \
|
|
for (int ret_prop = dev_read_first_prop(dev, &prop); \
|
|
!ret_prop; \
|
|
ret_prop = dev_read_next_prop(&prop))
|
|
|
|
#endif
|