Re: [PATCH v2] ASoC: SOF: topology: use new sound control LED layer

On 3/29/22 07:00, Jaroslav Kysela wrote:

Use the new sound control LED layer instead the direct ledtrig_audio_set() call - see 22d8de62f11b ("ALSA: control - add generic LED trigger module as the new control layer").

Signed-off-by: Jaroslav Kysela perex@perex.cz Cc: Mark Brown broonie@kernel.org Cc: Ranjani Sridharan ranjani.sridharan@linux.intel.com Cc: Bard Liao yung-chuan.liao@linux.intel.com Cc: Péter Ujfalusi peter.ujfalusi@linux.intel.com Cc: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com

LGTM - how many engineers does it take to turn on a LED :-)

Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com

---

v2:

• add Mark to Cc:
• add snd_ctl_led_request() call

---

sound/soc/sof/control.c | 33 --------------------------------- sound/soc/sof/sof-priv.h | 1 + sound/soc/sof/topology.c | 16 ++++++++++++++++ 3 files changed, 17 insertions(+), 33 deletions(-)

diff --git a/sound/soc/sof/control.c b/sound/soc/sof/control.c index de1778c4002b..3b5718a3516d 100644 --- a/sound/soc/sof/control.c +++ b/sound/soc/sof/control.c @@ -15,36 +15,6 @@ #include "sof-priv.h" #include "sof-audio.h"

-static void update_mute_led(struct snd_sof_control *scontrol,

• 	    struct snd_kcontrol *kcontrol,
  

• 	    struct snd_ctl_elem_value *ucontrol)
  

-{

• int temp = 0;
• int mask;
• int i;
• mask = 1U << snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
• for (i = 0; i < scontrol->num_channels; i++) {

• if (ucontrol->value.integer.value[i]) {
  

• 	temp |= mask;
  

• 	break;
  

• }
  

• }
• if (temp == scontrol->led_ctl.led_value)

• return;
  

• scontrol->led_ctl.led_value = temp;

-#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)

• if (!scontrol->led_ctl.direction)

• ledtrig_audio_set(LED_AUDIO_MUTE, temp ? LED_OFF : LED_ON);
  

• else

• ledtrig_audio_set(LED_AUDIO_MICMUTE, temp ? LED_OFF : LED_ON);
  

-#endif -}

• int snd_sof_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) {

@@ -121,9 +91,6 @@ int snd_sof_switch_put(struct snd_kcontrol *kcontrol, struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;

• if (scontrol->led_ctl.use_led)

• update_mute_led(scontrol, kcontrol, ucontrol);
  

• if (tplg_ops->control->switch_put) return tplg_ops->control->switch_put(scontrol, ucontrol);

diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h index 0d9b640ae24c..e537b1258aa8 100644 --- a/sound/soc/sof/sof-priv.h +++ b/sound/soc/sof/sof-priv.h @@ -473,6 +473,7 @@ struct snd_sof_dev { struct list_head route_list; struct snd_soc_component *component; u32 enabled_cores_mask; /* keep track of enabled cores */

• bool led_present;

  /* FW configuration */ struct sof_ipc_window *info_window;

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index 9b11e9795a7a..e47a64934c04 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -773,6 +773,7 @@ static int sof_control_load_volume(struct snd_soc_component *scomp, struct snd_soc_tplg_mixer_control *mc = container_of(hdr, struct snd_soc_tplg_mixer_control, hdr); int tlv[TLV_ITEMS];

• unsigned int mask; int ret;

  /* validate topology data */

@@ -821,6 +822,16 @@ static int sof_control_load_volume(struct snd_soc_component *scomp, goto err; }

• if (scontrol->led_ctl.use_led) {

• mask = scontrol->led_ctl.direction ? SNDRV_CTL_ELEM_ACCESS_MIC_LED :
  

• 					SNDRV_CTL_ELEM_ACCESS_SPK_LED;
  

• scontrol->access &= ~SNDRV_CTL_ELEM_ACCESS_LED_MASK;
  

• scontrol->access |= mask;
  

• kc->access &= ~SNDRV_CTL_ELEM_ACCESS_LED_MASK;
  

• kc->access |= mask;
  

• sdev->led_present = true;
  

• }
• dev_dbg(scomp->dev, "tplg: load kcontrol index %d chans %d\n", scontrol->comp_id, scontrol->num_channels);

@@ -2027,6 +2038,7 @@ static struct snd_soc_tplg_ops sof_tplg_ops = {

int snd_sof_load_topology(struct snd_soc_component *scomp, const char *file) {

• struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); const struct firmware *fw; int ret;

@@ -2049,6 +2061,10 @@ int snd_sof_load_topology(struct snd_soc_component *scomp, const char *file) }

release_firmware(fw);

• if (ret >= 0 && sdev->led_present)

• ret = snd_ctl_led_request();
  

• return ret; } EXPORT_SYMBOL(snd_sof_load_topology);