From: Carl Huang <cjhuang@xxxxxxxxxxxxxx>
For suspend support add suspend and resume to HIF layer. These ops are optional
and, for example, AHB bus driver does not need to implement these.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Carl Huang <cjhuang@xxxxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath11k/hif.h | 18 ++++++++++++++++++
drivers/net/wireless/ath/ath11k/pci.c | 20 ++++++++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/hif.h b/drivers/net/wireless/ath/ath11k/hif.h
index dbe5568916e8..147f1e802ca9 100644
--- a/drivers/net/wireless/ath/ath11k/hif.h
+++ b/drivers/net/wireless/ath/ath11k/hif.h
@@ -17,6 +17,8 @@ struct ath11k_hif_ops {
void (*stop)(struct ath11k_base *sc);
int (*power_up)(struct ath11k_base *sc);
void (*power_down)(struct ath11k_base *sc);
+ int (*suspend)(struct ath11k_base *ab);
+ int (*resume)(struct ath11k_base *ab);
int (*map_service_to_pipe)(struct ath11k_base *sc, u16 service_id,
u8 *ul_pipe, u8 *dl_pipe);
int (*get_user_msi_vector)(struct ath11k_base *ab, char *user_name,
@@ -56,6 +58,22 @@ static inline void ath11k_hif_power_down(struct ath11k_base *sc)
sc->hif.ops->power_down(sc);
}
+static inline int ath11k_hif_suspend(struct ath11k_base *ab)
+{
+ if (ab->hif.ops->suspend)
+ return ab->hif.ops->suspend(ab);
+
+ return 0;
+}
+
+static inline int ath11k_hif_resume(struct ath11k_base *ab)
+{
+ if (ab->hif.ops->resume)
+ return ab->hif.ops->resume(ab);
+
+ return 0;
+}
+
static inline u32 ath11k_hif_read32(struct ath11k_base *sc, u32 address)
{
return sc->hif.ops->read32(sc, address);
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c
index 818e37c32a85..770cefd53290 100644
--- a/drivers/net/wireless/ath/ath11k/pci.c
+++ b/drivers/net/wireless/ath/ath11k/pci.c
@@ -913,6 +913,24 @@ static void ath11k_pci_power_down(struct ath11k_base *ab)
ath11k_pci_sw_reset(ab_pci->ab, false);
}
+static int ath11k_pci_hif_suspend(struct ath11k_base *ab)
+{
+ struct ath11k_pci *ar_pci = ath11k_pci_priv(ab);
+
+ ath11k_mhi_suspend(ar_pci);
+
+ return 0;
+}
+
+static int ath11k_pci_hif_resume(struct ath11k_base *ab)
+{
+ struct ath11k_pci *ar_pci = ath11k_pci_priv(ab);
+
+ ath11k_mhi_resume(ar_pci);
+
+ return 0;
+}
+
static void ath11k_pci_kill_tasklets(struct ath11k_base *ab)
{
int i;
@@ -997,6 +1015,8 @@ static const struct ath11k_hif_ops ath11k_pci_hif_ops = {
.write32 = ath11k_pci_write32,
.power_down = ath11k_pci_power_down,
.power_up = ath11k_pci_power_up,
+ .suspend = ath11k_pci_hif_suspend,
+ .resume = ath11k_pci_hif_resume,
.irq_enable = ath11k_pci_ext_irq_enable,
.irq_disable = ath11k_pci_ext_irq_disable,
.get_msi_address = ath11k_pci_get_msi_address,
--
2.7.4
