From 5e030632d49367944879e17a6d73828be22edd55 Mon Sep 17 00:00:00 2001 From: Jonas Karlman Date: Sat, 22 Jul 2023 13:30:15 +0000 Subject: [PATCH] core: read: add dev_read_addr_size_index_ptr function 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 Reviewed-by: Kever Yang --- drivers/core/read.c | 11 +++++++++++ include/dm/read.h | 21 +++++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/drivers/core/read.c b/drivers/core/read.c index 5749473a6c..49066b59cd 100644 --- a/drivers/core/read.c +++ b/drivers/core/read.c @@ -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); diff --git a/include/dm/read.h b/include/dm/read.h index 137f2a52a2..c2615f72f4 100644 --- a/include/dm/read.h +++ b/include/dm/read.h @@ -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 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) { -- 2.39.5