From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198

---
 kernel/drivers/usb/dwc3/dwc3-qcom.c |   51 ++++++++++++++++++++++++++++++++++++---------------
 1 files changed, 36 insertions(+), 15 deletions(-)

diff --git a/kernel/drivers/usb/dwc3/dwc3-qcom.c b/kernel/drivers/usb/dwc3/dwc3-qcom.c
index c711528..4147a9d 100644
--- a/kernel/drivers/usb/dwc3/dwc3-qcom.c
+++ b/kernel/drivers/usb/dwc3/dwc3-qcom.c
@@ -115,7 +115,7 @@
 	readl(base + offset);
 }
 
-static void dwc3_qcom_vbus_overrride_enable(struct dwc3_qcom *qcom, bool enable)
+static void dwc3_qcom_vbus_override_enable(struct dwc3_qcom *qcom, bool enable)
 {
 	if (enable) {
 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,
@@ -136,7 +136,7 @@
 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, vbus_nb);
 
 	/* enable vbus override for device mode */
-	dwc3_qcom_vbus_overrride_enable(qcom, event);
+	dwc3_qcom_vbus_override_enable(qcom, event);
 	qcom->mode = event ? USB_DR_MODE_PERIPHERAL : USB_DR_MODE_HOST;
 
 	return NOTIFY_DONE;
@@ -148,7 +148,7 @@
 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, host_nb);
 
 	/* disable vbus override in host mode */
-	dwc3_qcom_vbus_overrride_enable(qcom, !event);
+	dwc3_qcom_vbus_override_enable(qcom, !event);
 	qcom->mode = event ? USB_DR_MODE_HOST : USB_DR_MODE_PERIPHERAL;
 
 	return NOTIFY_DONE;
@@ -258,7 +258,8 @@
 	if (IS_ERR(qcom->icc_path_apps)) {
 		dev_err(dev, "failed to get apps-usb path: %ld\n",
 				PTR_ERR(qcom->icc_path_apps));
-		return PTR_ERR(qcom->icc_path_apps);
+		ret = PTR_ERR(qcom->icc_path_apps);
+		goto put_path_ddr;
 	}
 
 	if (usb_get_maximum_speed(&qcom->dwc3->dev) >= USB_SPEED_SUPER ||
@@ -271,17 +272,23 @@
 
 	if (ret) {
 		dev_err(dev, "failed to set bandwidth for usb-ddr path: %d\n", ret);
-		return ret;
+		goto put_path_apps;
 	}
 
 	ret = icc_set_bw(qcom->icc_path_apps,
 		APPS_USB_AVG_BW, APPS_USB_PEAK_BW);
 	if (ret) {
 		dev_err(dev, "failed to set bandwidth for apps-usb path: %d\n", ret);
-		return ret;
+		goto put_path_apps;
 	}
 
 	return 0;
+
+put_path_apps:
+	icc_put(qcom->icc_path_apps);
+put_path_ddr:
+	icc_put(qcom->icc_path_ddr);
+	return ret;
 }
 
 /**
@@ -299,7 +306,16 @@
 /* Only usable in contexts where the role can not change. */
 static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom)
 {
-	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
+	struct dwc3 *dwc;
+
+	/*
+	 * FIXME: Fix this layering violation.
+	 */
+	dwc = platform_get_drvdata(qcom->dwc3);
+
+	/* Core driver may not have probed yet. */
+	if (!dwc)
+		return false;
 
 	return dwc->xhci;
 }
@@ -715,6 +731,7 @@
 	struct device		*dev = &pdev->dev;
 	struct dwc3_qcom	*qcom;
 	struct resource		*res, *parent_res = NULL;
+	struct resource		local_res;
 	int			ret, i;
 	bool			ignore_pipe_clk;
 
@@ -765,9 +782,8 @@
 	if (np) {
 		parent_res = res;
 	} else {
-		parent_res = kmemdup(res, sizeof(struct resource), GFP_KERNEL);
-		if (!parent_res)
-			return -ENOMEM;
+		memcpy(&local_res, res, sizeof(struct resource));
+		parent_res = &local_res;
 
 		parent_res->start = res->start +
 			qcom->acpi_pdata->qscratch_base_offset;
@@ -779,9 +795,10 @@
 			if (IS_ERR_OR_NULL(qcom->urs_usb)) {
 				dev_err(dev, "failed to create URS USB platdev\n");
 				if (!qcom->urs_usb)
-					return -ENODEV;
+					ret = -ENODEV;
 				else
-					return PTR_ERR(qcom->urs_usb);
+					ret = PTR_ERR(qcom->urs_usb);
+				goto clk_disable;
 			}
 		}
 	}
@@ -825,8 +842,8 @@
 	qcom->mode = usb_get_dr_mode(&qcom->dwc3->dev);
 
 	/* enable vbus override for device mode */
-	if (qcom->mode == USB_DR_MODE_PERIPHERAL)
-		dwc3_qcom_vbus_overrride_enable(qcom, true);
+	if (qcom->mode != USB_DR_MODE_HOST)
+		dwc3_qcom_vbus_override_enable(qcom, true);
 
 	/* register extcon to override sw_vbus on Vbus change later */
 	ret = dwc3_qcom_register_extcon(qcom);
@@ -862,10 +879,14 @@
 static int dwc3_qcom_remove(struct platform_device *pdev)
 {
 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
+	struct device_node *np = pdev->dev.of_node;
 	struct device *dev = &pdev->dev;
 	int i;
 
-	of_platform_depopulate(dev);
+	if (np)
+		of_platform_depopulate(&pdev->dev);
+	else
+		platform_device_put(pdev);
 
 	for (i = qcom->num_clocks - 1; i >= 0; i--) {
 		clk_disable_unprepare(qcom->clks[i]);

--
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