evie/android_kernel_oneplus_msm8998
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icnss: Add support to handle SSR within SSR

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Add state bit to defer recursive shutdown. This state
bit adds support for synchronization between reinit
and shutdown method during SSR within SSR.

Change-Id: Ifb857ecdb6545709706380631c423f0e24269e11
Signed-off-by: Anurag Chouhan <achouhan@codeaurora.org>
This commit is contained in:
Anurag Chouhan 2017-04-10 17:26:47 +05:30 • committed by Gerrit - the friendly Code Review server
parent 0abd412d83
commit d65bd33775
1 changed files with 9 additions and 0 deletions
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9
drivers/soc/qcom/icnss.c
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@ -202,6 +202,7 @@ enum icnss_driver_state {
ICNSS_MSA0_ASSIGNED,
ICNSS_WLFW_EXISTS,
ICNSS_WDOG_BITE,
ICNSS_SHUTDOWN_DONE,
};
struct ce_irq_list {
@ -1990,9 +1991,13 @@ static int icnss_call_driver_shutdown(struct icnss_priv *priv)
if (!priv->ops || !priv->ops->shutdown)
goto out;
if (test_bit(ICNSS_SHUTDOWN_DONE, &penv->state))
goto out;
icnss_pr_dbg("Calling driver shutdown state: 0x%lx\n", priv->state);
priv->ops->shutdown(&priv->pdev->dev);
set_bit(ICNSS_SHUTDOWN_DONE, &penv->state);
out:
return 0;
@ -2030,6 +2035,7 @@ static int icnss_pd_restart_complete(struct icnss_priv *priv)
}
out:
clear_bit(ICNSS_SHUTDOWN_DONE, &penv->state);
return 0;
call_probe:
@ -3667,6 +3673,9 @@ static int icnss_stats_show_state(struct seq_file *s, struct icnss_priv *priv)
case ICNSS_WDOG_BITE:
seq_puts(s, "MODEM WDOG BITE");
continue;
case ICNSS_SHUTDOWN_DONE:
seq_puts(s, "SHUTDOWN DONE");
continue;
}
seq_printf(s, "UNKNOWN-%d", i);