Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f16ed2f6 authored by Laxminath Kasam's avatar Laxminath Kasam Committed by Meng Wang
Browse files

asoc: wcd938x: Disable EN_CUR_DET bit for receiver noise 



Disable EN_CUR_DET to fix receiver noise as per hardware
specifications recommendation.

Change-Id: Ib1ea1eecc3e0f2ffeeb5f41c344e51c903cd2300
Signed-off-by: default avatarRamprasad Katkam <katkam@codeaurora.org>
Signed-off-by: default avatarLaxminath Kasam <lkasam@codeaurora.org>
parent 256a8567

asoc/codecs/wcd-clsh.c

+3 −0
Original line number Diff line number Diff line
@@ -218,6 +218,9 @@ static void wcd_clsh_flyback_ctrl(struct snd_soc_component *component, 
	/* enable/disable flyback */

	if ((enable && (++clsh_d->flyback_users == 1)) ||

	   (!enable && (--clsh_d->flyback_users == 0))) {

		snd_soc_component_update_bits(component,

				WCD9XXX_FLYBACK_VNEG_CTRL_1,

				0xE0, 0xE0);

		snd_soc_component_update_bits(component,

				WCD9XXX_ANA_RX_SUPPLIES,

				(1 << 6), (enable << 6));

asoc/codecs/wcd938x/wcd938x.c

+4 −0
Original line number Diff line number Diff line
@@ -532,6 +532,8 @@ static int wcd938x_codec_ear_dac_event(struct snd_soc_dapm_widget *w, 
				WCD938X_DIGITAL_CDC_COMP_CTL_0, 0x02, 0x02);

		/* 5 msec delay as per HW requirement */

		usleep_range(5000, 5010);

		snd_soc_component_update_bits(component, WCD938X_FLYBACK_EN,

				0x04, 0x00);

		wcd_cls_h_fsm(component, &wcd938x->clsh_info,

			     WCD_CLSH_EVENT_PRE_DAC,

			     WCD_CLSH_STATE_EAR,
@@ -824,6 +826,8 @@ static int wcd938x_codec_enable_ear_pa(struct snd_soc_dapm_widget *w, 
			     WCD_CLSH_EVENT_POST_PA,

			     WCD_CLSH_STATE_EAR,

			     hph_mode);

		snd_soc_component_update_bits(component, WCD938X_FLYBACK_EN,

				0x04, 0x04);

		break;

	};

	return ret;

include/asoc/wcd9xxx_registers.h

+2 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.

 */



#ifndef _WCD9XXX_REGISTERS_H
@@ -12,6 +12,7 @@ 
#define WCD9XXX_ANA_HPH                             (WCD9XXX_BASE_ADDRESS+0x009)

#define WCD9XXX_CLASSH_MODE_2                       (WCD9XXX_BASE_ADDRESS+0x098)

#define WCD9XXX_CLASSH_MODE_3                       (WCD9XXX_BASE_ADDRESS+0x099)

#define WCD9XXX_FLYBACK_VNEG_CTRL_1                 (WCD9XXX_BASE_ADDRESS+0x0A5)

#define WCD9XXX_FLYBACK_VNEG_CTRL_4                 (WCD9XXX_BASE_ADDRESS+0x0A8)

#define WCD9XXX_FLYBACK_VNEGDAC_CTRL_2              (WCD9XXX_BASE_ADDRESS+0x0AF)

#define WCD9XXX_RX_BIAS_HPH_LOWPOWER                (WCD9XXX_BASE_ADDRESS+0x0BF)