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Commit 27e8e9bf authored by Vatsal Bucha's avatar Vatsal Bucha Committed by Shashi Kant Maurya
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soc: swr-mstr: Fix headset detect issue during clk stop wakeup 



When ext clk stop wakeup and slave_pending_irq come together
then interrupt at swrslave is cleared due to calling
enable_slave_irq. Do not clear interrupts for enable_slave_irq
when its called from clk stop wakeup.

Change-Id: Ia710030ab80306d6750bea7264f0d4c07053d701
Signed-off-by: default avatarVatsal Bucha <vbucha@codeaurora.org>
parent 8b699bc1

soc/swr-mstr-ctrl.c

+9 −3
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.

 */



#include <linux/irq.h>
@@ -1755,10 +1755,12 @@ static void swrm_enable_slave_irq(struct swr_mstr_ctrl *swrm) 
	dev_dbg(swrm->dev, "%s: slave status: 0x%x\n", __func__, status);

	for (i = 0; i < (swrm->master.num_dev + 1); i++) {

		if (status & SWRM_MCP_SLV_STATUS_MASK) {

			if (!swrm->clk_stop_wakeup) {

				swrm_cmd_fifo_rd_cmd(swrm, &temp, i, 0x0,

					SWRS_SCP_INT_STATUS_CLEAR_1, 1);

				swrm_cmd_fifo_wr_cmd(swrm, 0xFF, i, 0x0,

					SWRS_SCP_INT_STATUS_CLEAR_1);

			}

			swrm_cmd_fifo_wr_cmd(swrm, 0x4, i, 0x0,

					SWRS_SCP_INT_STATUS_MASK_1);

		}
@@ -2170,7 +2172,9 @@ static irqreturn_t swr_mstr_interrupt_v2(int irq, void *dev) 
				 * re-enable Host IRQ and process slave pending

				 * interrupts, if any.

				 */

				swrm->clk_stop_wakeup = true;

				swrm_enable_slave_irq(swrm);

				swrm->clk_stop_wakeup = false;

			}

			break;

		default:
@@ -2741,6 +2745,8 @@ static int swrm_probe(struct platform_device *pdev) 
	swrm->dev_up = true;

	swrm->state = SWR_MSTR_UP;

	swrm->ipc_wakeup = false;

	swrm->enable_slave_irq = false;

	swrm->clk_stop_wakeup = false;

	swrm->ipc_wakeup_triggered = false;

	swrm->disable_div2_clk_switch = FALSE;

	init_completion(&swrm->reset);

soc/swr-mstr-ctrl.h

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

/*

 * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.

 */



#ifndef _SWR_WCD_CTRL_H
@@ -186,6 +186,7 @@ struct swr_mstr_ctrl { 
	u32 rd_fifo_depth;

	u32 wr_fifo_depth;

	bool enable_slave_irq;

	bool clk_stop_wakeup;

#ifdef CONFIG_DEBUG_FS

	struct dentry *debugfs_swrm_dent;

	struct dentry *debugfs_peek;