From a1b17e4f4c820c5ffe77ffa0c716e8b3b5d69866 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 10 Dec 2018 10:37:37 -0700 Subject: dm: core: Add a function to read into a unsigned int The current dev_read...() functions use s32 and u32 which are convenient for device tree but not so useful for normal code, which often wants to use normal integers for values. Add a helper which supports returning an unsigned int. Also add signed versions of the unsigned readers. Signed-off-by: Simon Glass --- drivers/core/read.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers') diff --git a/drivers/core/read.c b/drivers/core/read.c index cdd78be03e2..3c46b3674ed 100644 --- a/drivers/core/read.c +++ b/drivers/core/read.c @@ -21,6 +21,29 @@ int dev_read_u32_default(struct udevice *dev, const char *propname, int def) return ofnode_read_u32_default(dev_ofnode(dev), propname, def); } +int dev_read_s32(struct udevice *dev, const char *propname, s32 *outp) +{ + return ofnode_read_u32(dev_ofnode(dev), propname, (u32 *)outp); +} + +int dev_read_s32_default(struct udevice *dev, const char *propname, int def) +{ + return ofnode_read_u32_default(dev_ofnode(dev), propname, def); +} + +int dev_read_u32u(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; +} + const char *dev_read_string(struct udevice *dev, const char *propname) { return ofnode_read_string(dev_ofnode(dev), propname); -- cgit v1.2.3