From dddcd912919654dd3d88b7174a22084eb51a0dfa Mon Sep 17 00:00:00 2001
From: Mayank Rana <mrana@codeaurora.org>
Date: Tue, 25 May 2021 11:50:05 -0700
Subject: [PATCH] usb: qti_gadget: Select LLCC TCM memory for USB RMNET IN
 buffers

This change calls available API from USB GSI function driver to
select LLCC TCM memory for USB RMNET IN buffers when property
"qcom,rmnet_in_use_tcm_mem" is set with RMNET USB composition
device tree child node of qti_gadget node.

Change-Id: Ic2c3c2fb438801ebbefe15f30b92364a07059df7
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
---
 drivers/usb/gadget/legacy/qti_gadget.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/legacy/qti_gadget.c b/drivers/usb/gadget/legacy/qti_gadget.c
index dc8af82d3992..48c42cd4c53d 100644
--- a/drivers/usb/gadget/legacy/qti_gadget.c
+++ b/drivers/usb/gadget/legacy/qti_gadget.c
@@ -9,6 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/kernel.h>
+#include <linux/usb/dwc3-msm.h>
 
 struct qti_usb_function {
 	struct usb_function_instance *fi;
@@ -322,6 +323,16 @@ static int qti_usb_func_alloc(struct qti_usb_config *qcfg,
 		memcpy(cdev->qw_sign, qw_sign, QW_SIGN_LEN);
 	}
 
+#if IS_ENABLED(CONFIG_USB_F_GSI)
+	struct qti_usb_gadget *qg;
+
+	if (!strcmp(instance_name, "rmnet")) {
+		qg = container_of(cdev, struct qti_usb_gadget, cdev);
+		rmnet_gsi_update_in_buffer_mem_type(f,
+			of_property_read_bool(qg->cfg_node,
+				"qcom,rmnet_in_use_tcm_mem"));
+	}
+#endif
 	return 0;
 }