This is a version of reset_get_bulk() that does not treat no resets definition as an error.
Signed-off-by: Nikita Yushchenko nikita.yoush@cogentembedded.com --- drivers/reset/reset-uclass.c | 10 ++++++++++ include/reset.h | 21 +++++++++++++++++++++ 2 files changed, 31 insertions(+)
diff --git a/drivers/reset/reset-uclass.c b/drivers/reset/reset-uclass.c index ca9f00a8f2..5a66fe5aef 100644 --- a/drivers/reset/reset-uclass.c +++ b/drivers/reset/reset-uclass.c @@ -144,6 +144,16 @@ int reset_get_bulk(struct udevice *dev, struct reset_ctl_bulk *bulk) return __reset_get_bulk(dev, dev_ofnode(dev), bulk); }
+int reset_get_bulk_optional(struct udevice *dev, struct reset_ctl_bulk *bulk) +{ + int ret = reset_get_bulk(dev, bulk); + + if (ret == -ENODEV) + ret = 0; + + return ret; +} + int reset_get_by_name(struct udevice *dev, const char *name, struct reset_ctl *reset_ctl) { diff --git a/include/reset.h b/include/reset.h index 965f02e0ce..b61a2a765f 100644 --- a/include/reset.h +++ b/include/reset.h @@ -226,6 +226,21 @@ int reset_get_by_index_nodev(ofnode node, int index, */ int reset_get_bulk(struct udevice *dev, struct reset_ctl_bulk *bulk);
+/** + * reset_get_bulk_optional - Get/request all reset signals of a device, do not + * fail if resets are not defined. + * + * This is similar to reset_get_bulk(), but does not return error code when + * no resets are defined. Instead, bulk->count is set to zero; this turns + * reset_assert_bulk() / reset_deassert_bulk() / reset_release_bulk() into + * no-ops. + * + * @dev: The client device. + * @bulk A pointer to a reset control bulk struct to initialize. + * Return: 0 if OK, or a negative error code. + */ +int reset_get_bulk_optional(struct udevice *dev, struct reset_ctl_bulk *bulk); + /** * reset_get_by_name - Get/request a reset signal by name. * @@ -411,6 +426,12 @@ static inline int reset_get_bulk(struct udevice *dev, return -ENOTSUPP; }
+static inline int reset_get_bulk_optional(struct udevice *dev, + struct reset_ctl_bulk *bulk) +{ + return -ENOTSUPP; +} + static inline int reset_get_by_name(struct udevice *dev, const char *name, struct reset_ctl *reset_ctl) {