reset: add reset_release_all()
Add reset_release_all() method which Assert/Free an
array of resets signal that has been previously successfully
requested by reset_get_by_*()
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/reset/reset-uclass.c b/drivers/reset/reset-uclass.c
index 4fd82b9..307a297 100644
--- a/drivers/reset/reset-uclass.c
+++ b/drivers/reset/reset-uclass.c
@@ -42,6 +42,7 @@
debug("%s(dev=%p, index=%d, reset_ctl=%p)\n", __func__, dev, index,
reset_ctl);
+ reset_ctl->dev = NULL;
ret = dev_read_phandle_with_args(dev, "resets", "#reset-cells", 0,
index, &args);
@@ -87,6 +88,7 @@
debug("%s(dev=%p, name=%s, reset_ctl=%p)\n", __func__, dev, name,
reset_ctl);
+ reset_ctl->dev = NULL;
index = dev_read_stringlist_search(dev, "reset-names", name);
if (index < 0) {
@@ -133,6 +135,29 @@
return ops->rst_deassert(reset_ctl);
}
+int reset_release_all(struct reset_ctl *reset_ctl, int count)
+{
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ debug("%s(reset_ctl[%d]=%p)\n", __func__, i, &reset_ctl[i]);
+
+ /* check if reset has been previously requested */
+ if (!reset_ctl[i].dev)
+ continue;
+
+ ret = reset_assert(&reset_ctl[i]);
+ if (ret)
+ return ret;
+
+ ret = reset_free(&reset_ctl[i]);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
UCLASS_DRIVER(reset) = {
.id = UCLASS_RESET,
.name = "reset",