Register snoc bus layer suspend/resume PM ops and configure
the wakeup source(CE2) for the device.
Testing:
Tested on WCN3990 HW.
Tested FW: WLAN.HL.2.0-01192-QCAHLSWMTPLZ-1.
Signed-off-by: Govind Singh <govinds@xxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/snoc.c | 45 ++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index bdef3d00f3f4..3f935c5ce8a8 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -30,6 +30,7 @@
#define ATH10K_SNOC_RX_POST_RETRY_MS 50
#define CE_POLL_PIPE 4
+#define ATH10K_SNOC_WAKE_IRQ 2
static char *const ce_name[] = {
"WLAN_CE_0",
@@ -1025,6 +1026,46 @@ static int ath10k_snoc_hif_power_up(struct ath10k *ar)
return ret;
}
+#ifdef CONFIG_PM
+static int ath10k_snoc_hif_suspend(struct ath10k *ar)
+{
+ struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
+ int ret;
+
+ if (!device_may_wakeup(ar->dev))
+ return -EPERM;
+
+ ret = enable_irq_wake(ar_snoc->ce_irqs[ATH10K_SNOC_WAKE_IRQ].irq_line);
+ if (ret) {
+ ath10k_err(ar, "failed to enable wakeup irq :%d\n", ret);
+ return ret;
+ }
+
+ ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc device suspended\n");
+
+ return ret;
+}
+
+static int ath10k_snoc_hif_resume(struct ath10k *ar)
+{
+ struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
+ int ret;
+
+ if (!device_may_wakeup(ar->dev))
+ return -EPERM;
+
+ ret = disable_irq_wake(ar_snoc->ce_irqs[ATH10K_SNOC_WAKE_IRQ].irq_line);
+ if (ret) {
+ ath10k_err(ar, "failed to disable wakeup irq: %d\n", ret);
+ return ret;
+ }
+
+ ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc device resumed\n");
+
+ return ret;
+}
+#endif
+
static const struct ath10k_hif_ops ath10k_snoc_hif_ops = {
.read32 = ath10k_snoc_read32,
.write32 = ath10k_snoc_write32,
@@ -1038,6 +1079,10 @@ static const struct ath10k_hif_ops ath10k_snoc_hif_ops = {
.send_complete_check = ath10k_snoc_hif_send_complete_check,
.get_free_queue_number = ath10k_snoc_hif_get_free_queue_number,
.get_target_info = ath10k_snoc_hif_get_target_info,
+#ifdef CONFIG_PM
+ .suspend = ath10k_snoc_hif_suspend,
+ .resume = ath10k_snoc_hif_resume,
+#endif
};
static const struct ath10k_bus_ops ath10k_snoc_bus_ops = {
--
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