linux-kernel - [PATCH 02/12] ASoC: SOF: control: Add access field in struct snd_sof

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Date:   Thu, 16 Sep 2021 14:16:36 +0300
From:   Daniel Baluta <daniel.baluta@....nxp.com>
To:     broonie@...nel.org
Cc:     pierre-louis.bossart@...ux.intel.com, lgirdwood@...il.com,
        ranjani.sridharan@...ux.intel.com, kai.vehmanen@...ux.intel.com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        peter.ujfalusi@...ux.intel.com, daniel.baluta@....com,
        Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>
Subject: [PATCH 02/12] ASoC: SOF: control: Add access field in struct snd_sof_control

From: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>

Add a new field to save the access setting for all controls
in struct snd_sof_control. This will be used to ensure that
only widgets belonging to static pipelines have volatile
controls.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@...ux.intel.com>
---
 sound/soc/sof/sof-audio.h | 1 +
 sound/soc/sof/topology.c  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h
index 9a8d005e75a0..78a4a0c90a29 100644
--- a/sound/soc/sof/sof-audio.h
+++ b/sound/soc/sof/sof-audio.h
@@ -66,6 +66,7 @@ struct snd_sof_control {
 	int min_volume_step; /* min volume step for volume_table */
 	int max_volume_step; /* max volume step for volume_table */
 	int num_channels;
+	unsigned int access;
 	u32 readback_offset; /* offset to mmapped data if used */
 	struct sof_ipc_ctrl_data *control_data;
 	u32 size;	/* cdata size */
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 96b8791f7cc1..d8f7b1edefc3 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -1250,6 +1250,7 @@ static int sof_control_load(struct snd_soc_component *scomp, int index,
 		return -ENOMEM;
 
 	scontrol->scomp = scomp;
+	scontrol->access = kc->access;
 
 	switch (le32_to_cpu(hdr->ops.info)) {
 	case SND_SOC_TPLG_CTL_VOLSW:
-- 
2.27.0