diff options
| author | Niranjan H Y <niranjan.hy@ti.com> | 2026-04-01 16:21:45 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-04-03 17:12:38 +0300 |
| commit | ba2a0e81d4d71c3bbc61c420b6fac5abaeddd77d (patch) | |
| tree | 086086953c27ae7012405e2b86fd85c91a258e7f /sound | |
| parent | 04cc47624a33a6b56c62bfd65ad6b2d1c42e17c4 (diff) | |
| download | linux-ba2a0e81d4d71c3bbc61c420b6fac5abaeddd77d.tar.xz | |
ASoC: SDCA: Export Q7.8 volume control helpers
Export the Q7.8 volume control helpers to allow reuse
by other ASoC drivers. These functions handle 16-bit
signed Q7.8 fixed-point format values for volume controls.
Changes include:
- Rename q78_get_volsw to sdca_asoc_q78_get_volsw
- Rename q78_put_volsw to sdca_asoc_q78_put_volsw
- Add a convenience macro SDCA_SINGLE_Q78_TLV and
SDCA_DOUBLE_Q78_TLV for creating mixer controls
This allows other ASoC drivers to easily implement controls
using the Q7.8 fixed-point format without duplicating code.
Signed-off-by: Niranjan H Y <niranjan.hy@ti.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260401132148.2367-1-niranjan.hy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/sdca/sdca_asoc.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sound/soc/sdca/sdca_asoc.c b/sound/soc/sdca/sdca_asoc.c index 7709a4ce26e0..2bfc8e5aee31 100644 --- a/sound/soc/sdca/sdca_asoc.c +++ b/sound/soc/sdca/sdca_asoc.c @@ -820,8 +820,8 @@ static int q78_write(struct snd_soc_component *component, return snd_soc_component_update_bits(component, reg, mask, reg_val); } -static int q78_put_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) +int sdca_asoc_q78_put_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); @@ -841,6 +841,7 @@ static int q78_put_volsw(struct snd_kcontrol *kcontrol, return ret; } +EXPORT_SYMBOL_NS(sdca_asoc_q78_put_volsw, "SND_SOC_SDCA"); static int q78_read(struct snd_soc_component *component, struct soc_mixer_control *mc, unsigned int reg) @@ -855,8 +856,8 @@ static int q78_read(struct snd_soc_component *component, return val & GENMASK(mc->sign_bit, 0); } -static int q78_get_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) +int sdca_asoc_q78_get_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); @@ -868,6 +869,7 @@ static int q78_get_volsw(struct snd_kcontrol *kcontrol, return 0; } +EXPORT_SYMBOL_NS(sdca_asoc_q78_get_volsw, "SND_SOC_SDCA"); static int control_limit_kctl(struct device *dev, struct sdca_entity *entity, @@ -912,8 +914,8 @@ static int control_limit_kctl(struct device *dev, kctl->tlv.p = tlv; kctl->access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ; - kctl->get = q78_get_volsw; - kctl->put = q78_put_volsw; + kctl->get = sdca_asoc_q78_get_volsw; + kctl->put = sdca_asoc_q78_put_volsw; return 0; } |