diff options
| author | John Madieu <john.madieu.xa@bp.renesas.com> | 2026-05-25 11:02:28 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-06-01 15:30:25 +0100 |
| commit | 33a3500a34b87f370e4d6af73adc2efe8fffc84f (patch) | |
| tree | 7c6c58a74c22332baf93c63c2541b2b4231ca5e9 | |
| parent | 799836bc37ac9d31beb9effb4d02318f45e53b8f (diff) | |
ASoC: rsnd: src: Add SRC reset support for RZ/G3E
The RZ/G3E SoC exposes a shared SCU reset controller used by all SRC
modules. Acquire it once and pass it through per-instance's
rsnd_mod_init() so it is wired into the rsnd_mod->rstc plumbing.
devm_reset_control_get_optional_shared() returns NULL when no reset
is described in DT, leaving existing R-Car generations unaffected.
Signed-off-by: John Madieu <john.madieu.xa@bp.renesas.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/20260525110230.4014435-17-john.madieu.xa@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/renesas/rcar/src.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sound/soc/renesas/rcar/src.c b/sound/soc/renesas/rcar/src.c index 88ea9aad5cae..cad15fcc37f2 100644 --- a/sound/soc/renesas/rcar/src.c +++ b/sound/soc/renesas/rcar/src.c @@ -720,6 +720,7 @@ int rsnd_src_probe(struct rsnd_priv *priv) { struct device_node *node; struct device *dev = rsnd_priv_to_dev(priv); + struct reset_control *rstc; struct rsnd_src_ctrl *src_ctrl; struct rsnd_src *src; struct clk *clk; @@ -772,6 +773,16 @@ int rsnd_src_probe(struct rsnd_priv *priv) goto rsnd_src_probe_done; } + /* + * Shared SCU reset for every SRC module; acquire once. + * R-Car platforms typically don't have SRC reset controls. + */ + rstc = devm_reset_control_get_optional_shared(dev, "scu"); + if (IS_ERR(rstc)) { + ret = PTR_ERR(rstc); + goto rsnd_src_probe_done; + } + i = 0; for_each_child_of_node_scoped(node, np) { if (!of_device_is_available(np)) @@ -798,7 +809,7 @@ int rsnd_src_probe(struct rsnd_priv *priv) } ret = rsnd_mod_init(priv, rsnd_mod_get(src), - &rsnd_src_ops, clk, NULL, RSND_MOD_SRC, i); + &rsnd_src_ops, clk, rstc, RSND_MOD_SRC, i); if (ret) goto rsnd_src_probe_done; |