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Sat, 17 Oct 2026 22:55:09 -0700 (PDT) Received: from [10.0.70.21] ([2403:581e:d87e:0:fc2d:ed31:e80e:412d]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3acd0cde4fdsm5511292a91.4.2026.10.17.22.55.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Oct 2026 22:55:09 -0700 (PDT) From: James Calligeros Date: Sun, 18 Oct 2026 15:53:58 +1000 Subject: [PATCH v3 04/21] ASoC: ops: Introduce 'snd_soc_ctl_activate' Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20261018-macaudio-v3-4-abdff7741dea@gmail.com> References: <20261018-macaudio-v3-0-abdff7741dea@gmail.com> In-Reply-To: <20261018-macaudio-v3-0-abdff7741dea@gmail.com> To: David Rhodes , Richard Fitzgerald , =?utf-8?q?Martin_Povi=C5=A1er?= , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , James Calligeros , Jaroslav Kysela , Takashi Iwai , Matthias Brugger , AngeloGioacchino Del Regno , Shenghao Ding , Kevin Lu , Baojun Xu , Sen Wang , Sven Peter , Janne Grunau , Neal Gompa Cc: asahi@lists.linux.dev, linux-sound@vger.kernel.org, patches@opensource.cirrus.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2214; i=jcalligeros99@gmail.com; h=from:subject:message-id; bh=eogWKeAPSgLXuvFuxBpm0mCMpQlIZe0f6Gyo195bzv4=; b=owGbwMvMwCV2xczoYuD3ygTG02pJDFlX4nlMut3rN7jGTw++yar56Nujo3kPXr314b2V6G32L sVitc3hjoksDGJcDJZiiiwbmoQ8Zhux3ewXqdwLM4eVCWSItEgDAxCwMPDlJuaVGukY6ZlqG+oZ GukY6xgxcHEKwFRzMTMyHGOoaN6st3+KE4v2kjMP89/dODOtQUhfq3/H9G9JAnm/7jEyfGvpbTO UNf+wb7uxRIrgSp3Pjs/Nzff/XjRR/I1lsJ4LEwA= X-Developer-Key: i=jcalligeros99@gmail.com; a=openpgp; fpr=B08212489B3206D98F1479BDD43632D151F77960 From: Martin Povišer This function mirrors wraps the sound/core 'snd_ctl_activate_id' for ASoC. Machine drivers may call it to lock down kcontrols during fixup_controls. Signed-off-by: Martin Povišer Signed-off-by: James Calligeros --- include/sound/soc.h | 2 ++ sound/soc/soc-ops.c | 32 +++++++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/include/sound/soc.h b/include/sound/soc.h index 553bb7e2be98..7509824a6b2e 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -578,6 +578,8 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_limit_volume(struct snd_soc_card *card, const char *name, int max); +int snd_soc_ctl_activate(struct snd_soc_card *card, + const char *name, int active); int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c index 142f407e3939..295056bcc081 100644 --- a/sound/soc/soc-ops.c +++ b/sound/soc/soc-ops.c @@ -471,6 +471,38 @@ int snd_soc_limit_volume(struct snd_soc_card *card, const char *name, int max) } EXPORT_SYMBOL_GPL(snd_soc_limit_volume); +/** + * snd_soc_ctl_activate - Activate/deactivate a control matching a name + * + * @card: where to look for the control + * @name: name + * @active: zero to deactivate, nonzero to activate + * + * Return: 0 if unchanged, 1 if changed, or a negative error code on failure. + */ +int snd_soc_ctl_activate(struct snd_soc_card *card, + const char *name, int active) +{ + struct snd_kcontrol *kctl; + int ret = -EINVAL; + + if (!name) + return ret; + + kctl = snd_soc_card_get_kcontrol(card, name); + + if (kctl) { + ret = snd_ctl_activate_id(card->snd_card, &kctl->id, active); + if (ret < 0) + return ret; + } else { + dev_dbg(card->dev, "Tried to de/activate unknown control '%s'\n", name); + } + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_ctl_activate); + int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { -- 2.56.0