linux-kernel - [PATCH v2 2/2] ASoC: tas5805m: add missing page switch.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <638c51b2.170a0220.49853.d549@mx.google.com>
Date:   Thu, 27 Oct 2022 21:38:38 +1300
From:   Daniel Beer <daniel.beer@...rinstitute.com>
To:     alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org,
        Daniel Beer <daniel.beer@...rinstitute.com>,
        Andy Liu <andy-liu@...com>, Mark Brown <broonie@...nel.org>,
        Derek Simkowiak <derek.simkowiak@...rinstitute.com>
Subject: [PATCH v2 2/2] ASoC: tas5805m: add missing page switch.

In tas5805m_refresh, we switch pages to update the DSP volume control,
but we need to switch back to page 0 before trying to alter the
soft-mute control. This latter page-switch was missing.

Fixes: ec45268467f4 ("ASoC: add support for TAS5805M digital amplifier")
Signed-off-by: Daniel Beer <daniel.beer@...rinstitute.com>
---
 sound/soc/codecs/tas5805m.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/tas5805m.c b/sound/soc/codecs/tas5805m.c
index 6e2edf045446..4e38eb7acea1 100644
--- a/sound/soc/codecs/tas5805m.c
+++ b/sound/soc/codecs/tas5805m.c
@@ -203,6 +203,9 @@ static void tas5805m_refresh(struct tas5805m_priv *tas5805m)
 	set_dsp_scale(rm, 0x24, tas5805m->vol[0]);
 	set_dsp_scale(rm, 0x28, tas5805m->vol[1]);
 
+	regmap_write(rm, REG_PAGE, 0x00);
+	regmap_write(rm, REG_BOOK, 0x00);
+
 	/* Set/clear digital soft-mute */
 	regmap_write(rm, REG_DEVICE_CTRL_2,
 		(tas5805m->is_muted ? DCTRL2_MUTE : 0) |
-- 
2.38.1