Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ASoC: rt1320-sdw: kcontrol for brown-out feature update
Create a kcontrol to enable or disable brown-out dynamically.
Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://patch.msgid.link/20260409060102.4177554-1-jack.yu@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
authored by
Jack Yu
and committed by
Mark Brown
fbb1f8ba
833011cb
+43
+42
sound/soc/codecs/rt1320-sdw.c
+42
sound/soc/codecs/rt1320-sdw.c
···
2486
2486
return 0;
2487
2487
}
2488
2488
2489
+
static int rt1320_brown_out_put(struct snd_kcontrol *kcontrol,
2490
+
struct snd_ctl_elem_value *ucontrol)
2491
+
{
2492
+
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
2493
+
struct rt1320_sdw_priv *rt1320 = snd_soc_component_get_drvdata(component);
2494
+
int ret, changed = 0;
2495
+
2496
+
if (!rt1320->hw_init)
2497
+
return 0;
2498
+
2499
+
ret = pm_runtime_resume(component->dev);
2500
+
if (ret < 0 && ret != -EACCES)
2501
+
return ret;
2502
+
2503
+
if (rt1320->brown_out != ucontrol->value.integer.value[0]) {
2504
+
changed = 1;
2505
+
rt1320->brown_out = ucontrol->value.integer.value[0];
2506
+
}
2507
+
2508
+
if (rt1320->brown_out == 0)
2509
+
regmap_write(rt1320->regmap, 0xdb03, 0x00);
2510
+
else
2511
+
regmap_write(rt1320->regmap, 0xdb03, 0xf0);
2512
+
2513
+
2514
+
return changed;
2515
+
}
2516
+
2517
+
static int rt1320_brown_out_get(struct snd_kcontrol *kcontrol,
2518
+
struct snd_ctl_elem_value *ucontrol)
2519
+
{
2520
+
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
2521
+
struct rt1320_sdw_priv *rt1320 = snd_soc_component_get_drvdata(component);
2522
+
2523
+
ucontrol->value.integer.value[0] = rt1320->brown_out;
2524
+
2525
+
return 0;
2526
+
}
2527
+
2489
2528
static int rt1320_r0_temperature_get(struct snd_kcontrol *kcontrol,
2490
2529
struct snd_ctl_elem_value *ucontrol)
2491
2530
{
···
2584
2545
rt1320_r0_temperature_get, rt1320_r0_temperature_put),
2585
2546
SOC_SINGLE_EXT("RAE Update", SND_SOC_NOPM, 0, 1, 0,
2586
2547
rt1320_rae_update_get, rt1320_rae_update_put),
2548
+
SOC_SINGLE_EXT("Brown Out Switch", SND_SOC_NOPM, 0, 1, 0,
2549
+
rt1320_brown_out_get, rt1320_brown_out_put),
2587
2550
};
2588
2551
2589
2552
static const struct snd_kcontrol_new rt1320_spk_l_dac =
···
2945
2904
rt1320->fu_dapm_mute = true;
2946
2905
rt1320->fu_mixer_mute[0] = rt1320->fu_mixer_mute[1] =
2947
2906
rt1320->fu_mixer_mute[2] = rt1320->fu_mixer_mute[3] = true;
2907
+
rt1320->brown_out = 1;
2948
2908
2949
2909
INIT_WORK(&rt1320->load_dspfw_work, rt1320_load_dspfw_work);
2950
2910