diff options
| author | John Madieu <john.madieu.xa@bp.renesas.com> | 2026-05-25 14:02:21 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-06-01 17:30:19 +0300 |
| commit | b4ef837a28a100dfafff05463e11ff00d52fb411 (patch) | |
| tree | 70818054fca5cacaeec1c1a5bc9b793d77b1f1f0 | |
| parent | 1cd10dab6702a1003e4ff6d1490271b0d977bad5 (diff) | |
| download | linux-b4ef837a28a100dfafff05463e11ff00d52fb411.tar.xz | |
ASoC: rsnd: ssiu: Add shared SSI reset controller support
The RZ/G3E SoC exposes a single shared "ssi-all" reset that gates all
SSI/SSIU modules. Acquire it at SSIU probe and pass it through
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/20260525110230.4014435-10-john.madieu.xa@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/renesas/rcar/ssiu.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sound/soc/renesas/rcar/ssiu.c b/sound/soc/renesas/rcar/ssiu.c index 0cfa84fe5ea8..2b922ead62d0 100644 --- a/sound/soc/renesas/rcar/ssiu.c +++ b/sound/soc/renesas/rcar/ssiu.c @@ -510,6 +510,7 @@ int rsnd_ssiu_probe(struct rsnd_priv *priv) { struct device *dev = rsnd_priv_to_dev(priv); struct device_node *node __free(device_node) = rsnd_ssiu_of_node(priv); + struct reset_control *rstc; struct rsnd_ssiu *ssiu; struct rsnd_mod_ops *ops; const int *list = NULL; @@ -564,6 +565,12 @@ int rsnd_ssiu_probe(struct rsnd_priv *priv) } } + /* Acquire shared reset once for all SSIU modules */ + rstc = devm_reset_control_get_optional_shared(dev, "ssi-all"); + if (IS_ERR(rstc)) + return dev_err_probe(dev, PTR_ERR(rstc), + "failed to get ssi-all reset\n"); + for_each_rsnd_ssiu(ssiu, priv, i) { int ret; @@ -586,7 +593,7 @@ int rsnd_ssiu_probe(struct rsnd_priv *priv) } ret = rsnd_mod_init(priv, rsnd_mod_get(ssiu), - ops, NULL, NULL, RSND_MOD_SSIU, i); + ops, NULL, rstc, RSND_MOD_SSIU, i); if (ret) return ret; } |