linux-kernel - [PATCH 2/2] ASoC: tlv320adcx140: Move device reset to before programming

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

Date:   Thu, 30 Jul 2020 09:24:19 -0500
From:   Dan Murphy <dmurphy@...com>
To:     <lgirdwood@...il.com>, <broonie@...nel.org>, <perex@...ex.cz>,
        <tiwai@...e.com>
CC:     <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        Dan Murphy <dmurphy@...com>
Subject: [PATCH 2/2] ASoC: tlv320adcx140: Move device reset to before programming

Reset the device before programming the registers or all programming
will be lost as the device resets registers to default settings.

Signed-off-by: Dan Murphy <dmurphy@...com>
---
 sound/soc/codecs/tlv320adcx140.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c
index fc7616dcf9b5..5cd50d841177 100644
--- a/sound/soc/codecs/tlv320adcx140.c
+++ b/sound/soc/codecs/tlv320adcx140.c
@@ -838,6 +838,10 @@ static int adcx140_codec_probe(struct snd_soc_component *component)
 
 	bias_cfg = bias_source << ADCX140_MIC_BIAS_SHIFT | vref_source;
 
+	ret = adcx140_reset(adcx140);
+	if (ret)
+		goto out;
+
 	pdm_count = device_property_count_u32(adcx140->dev,
 					      "ti,pdm-edge-select");
 	if (pdm_count <= ADCX140_NUM_PDM_EDGES && pdm_count > 0) {
@@ -885,10 +889,6 @@ static int adcx140_codec_probe(struct snd_soc_component *component)
 	if (ret)
 		goto out;
 
-	ret = adcx140_reset(adcx140);
-	if (ret)
-		goto out;
-
 	if (adcx140->supply_areg == NULL)
 		sleep_cfg_val |= ADCX140_AREG_INTERNAL;
 
-- 
2.28.0