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Commit 21bb8090 authored by Mohammed Siddiq's avatar Mohammed Siddiq
Browse files

cnss2: Check for BT Enable GPIO in QCA6390 



QCA6390 requires synchronization between BT and WLAN enable gpio
to avoid power up issue. Add support for QCA6390 in gpio sync
code.

Change-Id: Id2183ff324c9c3059ea81e9137fa49c803feb183
Signed-off-by: default avatarMohammed Siddiq <msiddiq@codeaurora.org>
parent 423b7b2f

drivers/net/wireless/cnss2/power.c

+13 −4
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved. */

/* Copyright (c) 2016-2021, The Linux Foundation. All rights reserved. */



#include <linux/clk.h>

#include <linux/delay.h>
@@ -789,10 +789,17 @@ static int cnss_select_pinctrl_enable(struct cnss_plat_data *plat_priv) 
	int ret = 0, bt_en_gpio = plat_priv->pinctrl_info.bt_en_gpio;

	u8 wlan_en_state = 0;



	if (bt_en_gpio < 0 || plat_priv->device_id != QCA6490_DEVICE_ID ||

	    plat_priv->device_id != QCA6390_DEVICE_ID)

	if (bt_en_gpio < 0)

		goto set_wlan_en;



	switch (plat_priv->device_id) {

	case QCA6390_DEVICE_ID:

	case QCA6490_DEVICE_ID:

		break;

	default:

		goto set_wlan_en;

	}



	if (gpio_get_value(bt_en_gpio)) {

		cnss_pr_dbg("BT_EN_GPIO State: On\n");

		ret = cnss_select_pinctrl_state(plat_priv, true);
@@ -808,7 +815,9 @@ static int cnss_select_pinctrl_enable(struct cnss_plat_data *plat_priv) 
			cnss_select_pinctrl_state(plat_priv, false);

			wlan_en_state = 0;

		}

		/* 100 ms delay for BT_EN and WLAN_EN QCA6490 PMU sequencing */

		/* 100 ms delay for BT_EN and WLAN_EN QCA6490/QCA6390 PMU

		 * sequencing.

		 */

		msleep(100);

	}

set_wlan_en: