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expo: Add a function to write a property to a devicetree

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When the devicetree is too small for the property being written, we need
to expand the devicetree and retry the write.

Put this logic into a function so it can be reused.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2023-10-01 19:13:28 -06:00 • committed by Tom Rini
parent d88edd2bda
commit 117617c7c1
1 changed files with 26 additions and 12 deletions
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38
boot/cedit.c
View file

@ -269,6 +269,28 @@ static int get_cur_menuitem_text(const struct scene_obj_menu *menu,
return 0; return 0;
} }
static int write_dt_string(struct abuf *buf, const char *name, const char *str)
{
int ret, i;
/* write the text of the current item */
ret = -EAGAIN;
for (i = 0; ret && i < 2; i++) {
ret = fdt_property_string(abuf_data(buf), name, str);
if (!i) {
ret = check_space(ret, buf);
if (ret)
return log_msg_ret("rs2", -ENOMEM);
}
}
/* this should not happen */
if (ret)
return log_msg_ret("str", -EFAULT);
return 0;
}
static int h_write_settings(struct scene_obj *obj, void *vpriv) static int h_write_settings(struct scene_obj *obj, void *vpriv)
{ {
struct cedit_iter_priv *priv = vpriv; struct cedit_iter_priv *priv = vpriv;
@ -285,6 +307,7 @@ static int h_write_settings(struct scene_obj *obj, void *vpriv)
char name[80]; char name[80];
int ret, i; int ret, i;
/* write the ID of the current item */
menu = (struct scene_obj_menu *)obj; menu = (struct scene_obj_menu *)obj;
ret = -EAGAIN; ret = -EAGAIN;
for (i = 0; ret && i < 2; i++) { for (i = 0; ret && i < 2; i++) {
@ -304,20 +327,11 @@ static int h_write_settings(struct scene_obj *obj, void *vpriv)
if (ret) if (ret)
return log_msg_ret("mis", ret); return log_msg_ret("mis", ret);
/* write the text of the current item */
snprintf(name, sizeof(name), "%s-str", obj->name); snprintf(name, sizeof(name), "%s-str", obj->name);
ret = -EAGAIN; ret = write_dt_string(buf, name, str);
for (i = 0; ret && i < 2; i++) {
ret = fdt_property_string(abuf_data(buf), name, str);
if (!i) {
ret = check_space(ret, buf);
if (ret)
return log_msg_ret("rs2", -ENOMEM);
}
}
/* this should not happen */
if (ret) if (ret)
return log_msg_ret("wr2", -EFAULT); return log_msg_ret("wr2", ret);
break; break;
} }