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Commit 1dfb678f authored by Arjun Singh's avatar Arjun Singh Committed by Gerrit - the friendly Code Review server
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soc: qcom: bgcom: fixes Glink faliure on BG soft reset. 



Sends BG ssr  notification to Glink to clear channels state

Change-Id: If759973d2e22a754896c16d97cf432bdb6eb14d6
Signed-off-by: default avatarArjun Singh <arsingh@codeaurora.org>
parent f38ea00b

drivers/soc/qcom/bgcom.h

+3 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -208,4 +208,6 @@ int bgcom_resume(void **handle); 


int bgcom_set_spi_state(enum bgcom_spi_state state);



void bgcom_bgdown_handler(void);



#endif /* BGCOM_H */

drivers/soc/qcom/bgcom_interface.c

+2 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -285,6 +285,7 @@ static int ssr_bg_cb(struct notifier_block *this, 
	switch (opcode) {

	case SUBSYS_BEFORE_SHUTDOWN:

		bge.e_type = BG_BEFORE_POWER_DOWN;

		bgcom_bgdown_handler();

		bgcom_set_spi_state(BGCOM_SPI_BUSY);

		send_uevent(&bge);

		break;

drivers/soc/qcom/bgcom_spi.c

+8 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -261,6 +261,13 @@ void send_event(enum bgcom_event_type event, 
	}

}



void bgcom_bgdown_handler(void)

{

	send_event(BGCOM_EVENT_RESET_OCCURRED, NULL);

	g_slav_status_reg = 0;

}

EXPORT_SYMBOL(bgcom_bgdown_handler);



static void parse_fifo(uint8_t *data, union bgcom_event_data_type *event_data)

{

	uint16_t p_len;