ALSA: i2c: ak4xxx-adda: seed AK5365 cache with reset defaults

snd_akm4xxx_init() clears the register and volume caches before
dispatching by codec type. The AK5365 case then returns immediately,
leaving the software cache at zero instead of the documented AK5365
reset defaults.

The AK5365 capture volume controls read from volumes[] and the proc
register dump reads from images[], so the initial capture volume state
and proc output are wrong until a control write happens.

Seed the AK5365 cache with its documented reset defaults instead of
adding a guessed init sequence. The datasheet documents the reset
values and states that MCLK/LRCK changes do not require a PDN/PWN
reset because the chip has a built-in reset-free circuit.

Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com>
Link: https://patch.msgid.link/20260408-ak5365-cache-defaults-v1-1-fff639aca3e3@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/i2c/other/ak4xxx-adda.c b/sound/i2c/other/ak4xxx-adda.c
index bdeb3cef3640e17c617739b7b339835ee74cc6d9..9dd36b82a6ac47e04fa107649209cb0074a2455a 100644 (file)
--- a/sound/i2c/other/ak4xxx-adda.c
+++ b/sound/i2c/other/ak4xxx-adda.c
@@ -281,6 +281,9 @@ void snd_akm4xxx_init(struct snd_akm4xxx *ak)
                0x07, 0x00, /* 7: ROUT muted */
                0xff, 0xff
        };
+       static const unsigned char ak5365_defaults[] = {
+               0x01, 0x00, 0x00, 0x2b, 0x7f, 0x7f, 0x28, 0x89,
+       };
 
        int chip;
        const unsigned char *ptr, *inits;
@@ -327,10 +330,12 @@ void snd_akm4xxx_init(struct snd_akm4xxx *ak)
                ak->total_regs = 0x05;
                break;
        case SND_AK5365:
-               /* FIXME: any init sequence? */
                ak->num_chips = 1;
                ak->name = "ak5365";
                ak->total_regs = 0x08;
+               memcpy(ak->images, ak5365_defaults, sizeof(ak5365_defaults));
+               snd_akm4xxx_set_vol(ak, 0, 0x04, 127);
+               snd_akm4xxx_set_vol(ak, 0, 0x05, 127);
                return;
        case SND_AK4620:
                inits = inits_ak4620;