[RFC] [PATCH 12/13] wifi: ath12k: implement QRTR endpoint ID fetching for PCI

[Mihai Moldovan <ionic@ionic.de>]

QRTR endpoint ID fetching for PCIe devices will use MHI.

Signed-off-by: Mihai Moldovan <ionic@ionic.de>
---
 drivers/net/wireless/ath/ath12k/mhi.c | 19 +++++++++++++++++++
 drivers/net/wireless/ath/ath12k/mhi.h |  2 ++
 drivers/net/wireless/ath/ath12k/pci.c |  1 +
 3 files changed, 22 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/mhi.c b/drivers/net/wireless/ath/ath12k/mhi.c
index 2f6d14382ed7..e92ef20826bc 100644
--- a/drivers/net/wireless/ath/ath12k/mhi.c
+++ b/drivers/net/wireless/ath/ath12k/mhi.c
@@ -8,6 +8,8 @@
 #include <linux/pci.h>
 #include <linux/firmware.h>
 
+#include <net/qrtr.h>
+
 #include "core.h"
 #include "debug.h"
 #include "mhi.h"
@@ -654,3 +656,20 @@ void ath12k_mhi_coredump(struct mhi_controller *mhi_ctrl, bool in_panic)
 {
 	mhi_download_rddm_image(mhi_ctrl, in_panic);
 }
+
+int ath12k_mhi_set_qrtr_endpoint_id(struct ath12k_base *ab)
+{
+	struct ath12k_pci *ab_pci = ath12k_pci_priv(ab);
+	struct ath12k_qmi *qmi = &ab->qmi;
+	int ret;
+
+	/* Pass endpoint ID up for QMI usage. */
+	ret = qrtr_endpoint_id_get_or_assign(ab_pci->mhi_ctrl, &qmi->handle.endpoint_id);
+	ath12k_dbg(ab, ATH12K_DBG_PCI, "queried mhi_ctrl QRTR endpoint ID: %u\n", qmi->handle.endpoint_id);
+	if (ret) {
+		ath12k_warn(ab, "failed to query QRTR endpoint ID: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
diff --git a/drivers/net/wireless/ath/ath12k/mhi.h b/drivers/net/wireless/ath/ath12k/mhi.h
index 7358b8477536..c4e00c1747c8 100644
--- a/drivers/net/wireless/ath/ath12k/mhi.h
+++ b/drivers/net/wireless/ath/ath12k/mhi.h
@@ -44,4 +44,6 @@ void ath12k_mhi_clear_vector(struct ath12k_base *ab);
 void ath12k_mhi_suspend(struct ath12k_pci *ar_pci);
 void ath12k_mhi_resume(struct ath12k_pci *ar_pci);
 void ath12k_mhi_coredump(struct mhi_controller *mhi_ctrl, bool in_panic);
+
+int ath12k_mhi_set_qrtr_endpoint_id(struct ath12k_base *ab);
 #endif
diff --git a/drivers/net/wireless/ath/ath12k/pci.c b/drivers/net/wireless/ath/ath12k/pci.c
index cf907550e6a4..3d65c64d1b31 100644
--- a/drivers/net/wireless/ath/ath12k/pci.c
+++ b/drivers/net/wireless/ath/ath12k/pci.c
@@ -1514,6 +1514,7 @@ static const struct ath12k_hif_ops ath12k_pci_hif_ops = {
 #ifdef CONFIG_ATH12K_COREDUMP
 	.coredump_download = ath12k_pci_coredump_download,
 #endif
+	.set_qrtr_endpoint_id = ath12k_mhi_set_qrtr_endpoint_id,
 };
 
 static
-- 
2.45.2