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Commit c803632b authored by Rishabh Bhatnagar's avatar Rishabh Bhatnagar
Browse files

esoc: Add mdm error-fatal notifier hook 



Add an error-fatal notifier hook to the list of other client hooks,
which would notify the clients about modem's unexpected reset or
error-fatal.

Change-Id: I185c4b05795b7ffb0768c240f25cc487f3d67b63
Signed-off-by: default avatarRishabh Bhatnagar <rishabhb@codeaurora.org>
parent 71e8e641

drivers/esoc/esoc-mdm-drv.c

+18 −1
Original line number Diff line number Diff line
@@ -67,6 +67,7 @@ struct mdm_drv { 


static void esoc_client_link_power_off(struct esoc_clink *esoc_clink,

							unsigned int flags);

static void esoc_client_link_mdm_crash(struct esoc_clink *esoc_clink);



static int esoc_msm_restart_handler(struct notifier_block *nb,

		unsigned long action, void *data)
@@ -161,10 +162,11 @@ static void mdm_ssr_fn(struct work_struct *work) 
	struct mdm_drv *mdm_drv = container_of(work, struct mdm_drv, ssr_work);

	struct mdm_ctrl *mdm = get_esoc_clink_data(mdm_drv->esoc_clink);



	esoc_client_link_mdm_crash(mdm_drv->esoc_clink);



	mdm_wait_for_status_low(mdm, false);



	esoc_mdm_log("Starting SSR work\n");



	/*

	 * If restarting esoc fails, the SSR framework triggers a kernel panic

	 */
@@ -208,6 +210,21 @@ static void esoc_client_link_power_off(struct esoc_clink *esoc_clink, 
	}

}



static void esoc_client_link_mdm_crash(struct esoc_clink *esoc_clink)

{

	int i;

	struct esoc_client_hook *client_hook;



	dev_dbg(&esoc_clink->dev, "Calling mdm_crash hooks\n");

	esoc_mdm_log("Calling mdm_crash hooks\n");



	for (i = 0; i < ESOC_MAX_HOOKS; i++) {

		client_hook = esoc_clink->client_hook[i];

		if (client_hook && client_hook->esoc_link_mdm_crash)

			client_hook->esoc_link_mdm_crash(client_hook->priv);

	}

}



static void mdm_crash_shutdown(const struct subsys_desc *mdm_subsys)

{

	struct esoc_clink *esoc_clink =

include/linux/esoc_client.h

+1 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ struct esoc_client_hook { 
	int (*esoc_link_power_on)(void *priv, unsigned int flags);

	void (*esoc_link_power_off)(void *priv, unsigned int flags);

	u64 (*esoc_link_get_id)(void *priv);

	void (*esoc_link_mdm_crash)(void *priv);

};



/*