diff options
| author | Patrice Chotard <patrice.chotard@st.com> | 2017-07-18 09:57:06 (GMT) |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2017-07-28 21:34:07 (GMT) |
| commit | 3b9d1bdd4e5fe0c44e5d4d0a0916dbccc558749d (patch) | |
| tree | 893fe1b1333220392483fe4cdc29f93dffe06a02 /drivers/reset | |
| parent | 9bd5cdf6b62b249dc48a00a23b44dc7be547f9f9 (diff) | |
| download | u-boot-fsl-qoriq-3b9d1bdd4e5fe0c44e5d4d0a0916dbccc558749d.tar.xz | |
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>
Diffstat (limited to 'drivers/reset')
| -rw-r--r-- | drivers/reset/reset-uclass.c | 25 |
1 files changed, 25 insertions, 0 deletions
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 @@ int reset_get_by_index(struct udevice *dev, int index, 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 @@ int reset_get_by_name(struct udevice *dev, const char *name, 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 @@ int reset_deassert(struct reset_ctl *reset_ctl) 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", |