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| author | Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> | 2026-03-06 20:22:57 +0300 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2026-03-09 12:20:04 +0300 |
| commit | 9035073d0ef1de813c6335239250248bfe0a64aa (patch) | |
| tree | 32b36d11206f63431be1431d1dab4a3ccf91f4e4 /include | |
| parent | ba8dbbb14b7e6734afbb5ba37d0679831aa3d590 (diff) | |
| download | linux-9035073d0ef1de813c6335239250248bfe0a64aa.tar.xz | |
reset: convert reset core to using firmware nodes
With everything else now in place, we can convert the remaining parts of
the reset subsystem to becoming fwnode-agnostic - meaning it will work
with all kinds of firmware nodes, not only devicetree.
To that end: extend struct reset_controller_dev with fields taking
information relevant for using firmware nodes (which mirrors what we
already do for OF-nodes) and limit using of_ APIs only to where it's
absolutely necessary (mostly around the of_xlate callback).
For backward compatibility of existing drivers we still support OF-nodes
but firmware nodes become the preferred method.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/reset-controller.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h index 185d2a9bd7cd..52a5a4e81f18 100644 --- a/include/linux/reset-controller.h +++ b/include/linux/reset-controller.h @@ -5,6 +5,8 @@ #include <linux/list.h> #include <linux/mutex.h> +struct fwnode_handle; +struct fwnode_reference_args; struct reset_controller_dev; /** @@ -38,8 +40,12 @@ struct of_phandle_args; * @of_node: corresponding device tree node as phandle target * @of_reset_n_cells: number of cells in reset line specifiers * @of_xlate: translation function to translate from specifier as found in the - * device tree to id as given to the reset control ops, defaults - * to :c:func:`of_reset_simple_xlate`. + * device tree to id as given to the reset control ops + * @fwnode: firmware node associated with this device + * @fwnode_reset_n_cells: number of cells in reset line specifiers + * @fwnode_xlate: translation function to translate from firmware specifier to + * id as given to the reset control ops, defaults to + * :c:func:`fwnode_reset_simple_xlate` * @nr_resets: number of reset controls in this reset controller device * @lock: protects the reset control list from concurrent access */ @@ -53,6 +59,10 @@ struct reset_controller_dev { int of_reset_n_cells; int (*of_xlate)(struct reset_controller_dev *rcdev, const struct of_phandle_args *reset_spec); + struct fwnode_handle *fwnode; + int fwnode_reset_n_cells; + int (*fwnode_xlate)(struct reset_controller_dev *rcdev, + const struct fwnode_reference_args *reset_spec); unsigned int nr_resets; struct mutex lock; }; |