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Commit 665d545a authored by Bhalchandra Gajare's avatar Bhalchandra Gajare Committed by Gerrit - the friendly Code Review server
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ASoC: wcd9335: Fix register sequence for CPE configuration 



Currently during disabling the EC PP path (Echo cancellation Ping
Pong), the driver is also disabling other data routing controls in
the register. This is causing existing voice activation use-case
using CPE (Codec Processing Engine) to fail as there is no valid
data that is sent to the processing engine. Fix the register sequence
to avoid this issue.

CRs-fixed: 1034169
Change-Id: I2e2b50aeb770ca523cf70e2c0768e38ee56e39eb
Signed-off-by: default avatarBhalchandra Gajare <gajare@codeaurora.org>
parent 8b74d66b

sound/soc/codecs/wcd9335.c

+2 −2
Original line number Diff line number Diff line
@@ -10265,14 +10265,14 @@ static int tasha_codec_ec_buf_mux_enable(struct snd_soc_dapm_widget *w, 
	switch (event) {

	case SND_SOC_DAPM_POST_PMU:

		snd_soc_write(codec, WCD9335_CPE_SS_EC_BUF_INT_PERIOD, 0x3B);

		snd_soc_update_bits(codec, WCD9335_CPE_SS_CFG, 0x68, 0x28);

		snd_soc_update_bits(codec, WCD9335_CPE_SS_CFG, 0x08, 0x08);

		snd_soc_update_bits(codec, WCD9335_CDC_IF_ROUTER_TX_MUX_CFG0,

				    0x08, 0x08);

		break;

	case SND_SOC_DAPM_POST_PMD:

		snd_soc_update_bits(codec, WCD9335_CDC_IF_ROUTER_TX_MUX_CFG0,

				    0x08, 0x00);

		snd_soc_update_bits(codec, WCD9335_CPE_SS_CFG, 0x68, 0x40);

		snd_soc_update_bits(codec, WCD9335_CPE_SS_CFG, 0x08, 0x00);

		snd_soc_write(codec, WCD9335_CPE_SS_EC_BUF_INT_PERIOD, 0x00);

		break;

	}