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Merge "ath10k: synchronize WLAN ON/OFF cmd during system suspend"

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Linux Build Service Account 2017-09-15 18:12:38 -07:00 • committed by Gerrit - the friendly Code Review server
commit 809e35f581
2 changed files with 47 additions and 1 deletions
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46
drivers/net/wireless/ath/ath10k/snoc.c
View file

@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/bitops.h>
#include <linux/suspend.h>
#include "core.h"
#include "debug.h"
#include "hif.h"
@ -955,9 +956,13 @@ static int ath10k_snoc_init_pipes(struct ath10k *ar)
static void ath10k_snoc_hif_power_down(struct ath10k *ar)
{
struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif power down\n");
msleep(SNOC_HIF_POWER_DOWN_DELAY);
ath10k_snoc_qmi_wlan_disable(ar);
if (!atomic_read(&ar_snoc->pm_ops_inprogress))
ath10k_snoc_qmi_wlan_disable(ar);
}
int ath10k_snoc_get_ce_id(struct ath10k *ar, int irq)
@ -1141,10 +1146,18 @@ static int ath10k_snoc_claim(struct ath10k *ar)
static int ath10k_snoc_hif_power_up(struct ath10k *ar)
{
int ret;
struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
ath10k_dbg(ar, ATH10K_DBG_SNOC, "%s:WCN3990 driver state = %d\n",
__func__, ar->state);
if (atomic_read(&ar_snoc->pm_ops_inprogress)) {
ath10k_dbg(ar, ATH10K_DBG_SNOC,
"%s: WLAN OFF CMD Reset on PM Resume\n", __func__);
ath10k_snoc_qmi_wlan_disable(ar);
atomic_set(&ar_snoc->pm_ops_inprogress, 0);
}
if (ar->state == ATH10K_STATE_ON ||
test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) {
ret = ath10k_snoc_bus_configure(ar);
@ -1208,6 +1221,33 @@ out:
return ret;
}
static
int ath10k_snoc_pm_notifier(struct notifier_block *nb,
unsigned long pm_event, void *data)
{
struct ath10k_snoc *ar_snoc =
container_of(nb, struct ath10k_snoc, pm_notifier);
struct ath10k *ar = ar_snoc->ar;
ath10k_dbg(ar, ATH10K_DBG_SNOC,
"%s: PM Event: %lu\n", __func__, pm_event);
switch (pm_event) {
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
case PM_POST_HIBERNATION:
case PM_POST_SUSPEND:
case PM_RESTORE_PREPARE:
case PM_POST_RESTORE:
atomic_set(&ar_snoc->pm_ops_inprogress, 1);
break;
default:
break;
}
return NOTIFY_DONE;
}
static const struct ath10k_hif_ops ath10k_snoc_hif_ops = {
.tx_sg = ath10k_snoc_hif_tx_sg,
.start = ath10k_snoc_hif_start,
@ -1306,6 +1346,9 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
ath10k_snoc_modem_ssr_register_notifier(ar);
ath10k_snoc_pd_restart_enable(ar);
ar_snoc->pm_notifier.notifier_call = ath10k_snoc_pm_notifier;
register_pm_notifier(&ar_snoc->pm_notifier);
ath10k_dbg(ar, ATH10K_DBG_SNOC, "%s:WCN3990 probed\n", __func__);
return 0;
@ -1338,6 +1381,7 @@ static int ath10k_snoc_remove(struct platform_device *pdev)
ath10k_dbg(ar, ATH10K_DBG_SNOC, "%s:WCN3990 removed\n", __func__);
unregister_pm_notifier(&ar_snoc->pm_notifier);
ath10k_core_unregister(ar);
ath10k_snoc_pdr_unregister_notifier(ar);
ath10k_snoc_modem_ssr_unregister_notifier(ar);

2
drivers/net/wireless/ath/ath10k/snoc.h
View file

@ -148,12 +148,14 @@ struct ath10k_snoc {
u32 *vaddr_rri_on_ddr;
bool is_driver_probed;
struct notifier_block modem_ssr_nb;
struct notifier_block pm_notifier;
void *modem_notify_handler;
struct ath10k_service_notifier_context *service_notifier;
struct notifier_block service_notifier_nb;
int total_domains;
struct notifier_block get_service_nb;
atomic_t fw_crashed;
atomic_t pm_ops_inprogress;
struct ath10k_snoc_qmi_config qmi_cfg;
};