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

Commit a0cd7f82 authored by Arjun Singh's avatar Arjun Singh Committed by Gerrit - the friendly Code Review server
Browse files

soc: qcom: bgcom: add bg ssr ramdump 



Add bg ssr ramdump and provide SPI exclusion between HLOS and TZ
Avoid xpu voilation at boot up and ramdump

Signed-off-by: default avatarArjun Singh <arsingh@codeaurora.org>
Change-Id: I20657ef25d07629c78386a0c0c5f38e28d32191a
parent a74a42c2

drivers/soc/qcom/bgcom_interface.c

+1 −0
Original line number Diff line number Diff line
@@ -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_set_spi_state(BGCOM_SPI_BUSY);

		send_uevent(&bge);

		break;

	case SUBSYS_AFTER_POWERUP:

drivers/soc/qcom/bgcom_spi.c

+11 −0
Original line number Diff line number Diff line
@@ -40,6 +40,7 @@ 


#define BG_SPI_MAX_WORDS (0x3FFFFFFD)

#define BG_SPI_MAX_REGS (0x0A)

#define SLEEP_IN_STATE_CHNG 2000



enum bgcom_state {

	/*BGCOM Staus ready*/
@@ -90,9 +91,19 @@ static enum bgcom_spi_state spi_state; 


int bgcom_set_spi_state(enum bgcom_spi_state state)

{

	struct bg_spi_priv *bg_spi = container_of(bg_com_drv,

						struct bg_spi_priv, lhandle);

	if (state < 0 || state > 1)

		return -EINVAL;



	if (state == spi_state)

		return 0;



	mutex_lock(&bg_spi->xfer_mutex);

	spi_state = state;

	if (spi_state == BGCOM_SPI_BUSY)

		msleep(SLEEP_IN_STATE_CHNG);

	mutex_unlock(&bg_spi->xfer_mutex);

	return 0;

}

EXPORT_SYMBOL(bgcom_set_spi_state);