Hi Ahmad,
On 23-05-31, Ahmad Fatoum wrote:
> The #ifdef __BAREBOX__ is meant for easier synchronization with
> dt-utils. We'll keep that intact, but move it out of the function to not
> break reading flow. After sync, dt-utils would now need to implement
>
> of_cdev_find
> cdev_to_devpath
>
> Signed-off-by: Ahmad Fatoum <[email protected]>
> ---
> common/state/state.c | 30 +++++++++++++++++++++++-------
> 1 file changed, 23 insertions(+), 7 deletions(-)
>
> diff --git a/common/state/state.c b/common/state/state.c
> index 11cc86ff73be..88e246198fb8 100644
> --- a/common/state/state.c
> +++ b/common/state/state.c
> @@ -581,6 +581,20 @@ void state_release(struct state *state)
> free(state);
> }
>
> +#ifdef __BAREBOX__
> +static char *cdev_to_devpath(struct cdev *cdev, off_t *offset, size_t *size)
> +{
> + /*
> + * We only accept partitions exactly mapping the barebox-state,
> + * but dt-utils may need to set non-zero values here
> + */
> + *offset = 0;
> + *size = 0;
> +
> + return basprintf("/dev/%s", cdev->name);
> +}
> +#endif
We could get rid of the #ifdef if we move this function to some barebox
internal code not shared with dt-utils.
Regards,
Marco
> +
> /*
> * state_new_from_node - create a new state instance from a device_node
> *
> @@ -597,8 +611,9 @@ struct state *state_new_from_node(struct device_node
> *node, bool readonly)
> const char *alias;
> uint32_t stridesize;
> struct device_node *partition_node;
> - off_t offset = 0;
> - size_t size = 0;
> + struct cdev *cdev;
> + off_t offset;
> + size_t size;
>
> alias = of_alias_get(node);
> if (!alias) {
> @@ -617,11 +632,8 @@ struct state *state_new_from_node(struct device_node
> *node, bool readonly)
> goto out_release_state;
> }
>
> -#ifdef __BAREBOX__
> - ret = of_find_path_by_node(partition_node, &state->backend_path, 0);
> -#else
> - ret = of_get_devicepath(partition_node, &state->backend_path, &offset,
> &size);
> -#endif
> + cdev = of_cdev_find(partition_node);
> + ret = PTR_ERR_OR_ZERO(cdev);
> if (ret) {
> if (ret != -EPROBE_DEFER)
> dev_err(&state->dev, "state failed to parse path to
> backend: %s\n",
> @@ -629,6 +641,10 @@ struct state *state_new_from_node(struct device_node
> *node, bool readonly)
> goto out_release_state;
> }
>
> + state->backend_path = cdev_to_devpath(cdev, &offset, &size);
> +
> + pr_debug("%s: backend resolved to %s\n", node->full_name,
> state->backend_path);
> +
> state->backend_reproducible_name =
> of_get_reproducible_name(partition_node);
>
> ret = of_property_read_string(node, "backend-type", &backend_type);
> --
> 2.39.2
>
>
>
