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ASoC: rsnd: Add SSI reset support for RZ/G3E platform

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Acquire the per-SSI reset controller and pass it through
rsnd_mod_init() so it is wired into the rsnd_mod->rstc plumbing.

The RZ/G3E SoC exposes one reset line per SSI instance. Use the
indexed-name rsnd_devm_reset_control_get_optional_indexed() helper
so the same code accepts both the hyphenated RZ/G3E names
("ssi-0", "ssi-1", ...) and the legacy dotted names used by R-Car
("ssi.0", ...).

The helper 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/20260525110230.4014435-12-john.madieu.xa@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
John Madieu
2026-05-25 11:02:23 +00:00
committed by Mark Brown
parent 80f43c5217
commit 692f03422f
1 changed files with 13 additions and 1 deletions
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14
sound/soc/renesas/rcar/ssi.c
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@@ -1157,6 +1157,7 @@ int __rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod)
int rsnd_ssi_probe(struct rsnd_priv *priv)
{
struct reset_control *rstc;
struct device_node *node;
struct device *dev = rsnd_priv_to_dev(priv);
struct rsnd_mod_ops *ops;
@@ -1202,6 +1203,17 @@ int rsnd_ssi_probe(struct rsnd_priv *priv)
goto rsnd_ssi_probe_done;
}
/*
* RZ/G3E uses per-SSI reset controllers.
* R-Car platforms typically don't have SSI reset controls.
*/
rstc = rsnd_devm_reset_control_get_optional_indexed(dev,
SSI_NAME, i);
if (IS_ERR(rstc)) {
ret = PTR_ERR(rstc);
goto rsnd_ssi_probe_done;
}
if (of_property_read_bool(np, "shared-pin"))
rsnd_flags_set(ssi, RSND_SSI_CLK_PIN_SHARE);
@@ -1220,7 +1232,7 @@ int rsnd_ssi_probe(struct rsnd_priv *priv)
ops = &rsnd_ssi_dma_ops;
ret = rsnd_mod_init(priv, rsnd_mod_get(ssi), ops, clk,
NULL, RSND_MOD_SSI, i);
rstc, RSND_MOD_SSI, i);
if (ret)
goto rsnd_ssi_probe_done;