From be854b39a813cbd743703c2143f8c230cdacc5c1 Mon Sep 17 00:00:00 2001
From: Stanimir Varbanov <svarbanov@suse.de>
Date: Mar 28 2024 07:11:49 +0000
Subject: phy: tegra: xusb: Add API to retrieve the port number of phy (bsc#1221491)


---

diff --git a/patches.suse/phy-tegra-xusb-Add-API-to-retrieve-the-port-number-of-phy.patch b/patches.suse/phy-tegra-xusb-Add-API-to-retrieve-the-port-number-of-phy.patch
new file mode 100644
index 0000000..714a843
--- /dev/null
+++ b/patches.suse/phy-tegra-xusb-Add-API-to-retrieve-the-port-number-of-phy.patch
@@ -0,0 +1,59 @@
+From: Wayne Chang <waynec@nvidia.com>
+Date: Thu, 7 Mar 2024 11:03:27 +0800
+Subject: phy: tegra: xusb: Add API to retrieve the port number of phy
+Git-commit: d843f031d9e90462253015bc0bd9e3852d206bf2
+Patch-mainline: v6.9-rc1
+References: bsc#1221491
+
+This patch introduces a new API, tegra_xusb_padctl_get_port_number,
+to the Tegra XUSB Pad Controller driver. This API is used to identify
+the USB port that is associated with a given PHY.
+
+The function takes a PHY pointer for either a USB2 PHY or USB3 PHY as input
+and returns the corresponding port number. If the PHY pointer is invalid,
+it returns -ENODEV.
+
+Cc: stable@vger.kernel.org
+Signed-off-by: Wayne Chang <waynec@nvidia.com>
+Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
+Tested-by: Jon Hunter <jonathanh@nvidia.com>
+Link: https://lore.kernel.org/r/20240307030328.1487748-2-waynec@nvidia.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Acked-by: Stanimir Varbanov <svarbanov@suse.de>
+---
+ drivers/phy/tegra/xusb.c       |   13 +++++++++++++
+ include/linux/phy/tegra/xusb.h |    1 +
+ 2 files changed, 14 insertions(+)
+
+--- a/drivers/phy/tegra/xusb.c
++++ b/drivers/phy/tegra/xusb.c
+@@ -1531,6 +1531,19 @@ int tegra_xusb_padctl_get_usb3_companion
+ }
+ EXPORT_SYMBOL_GPL(tegra_xusb_padctl_get_usb3_companion);
+ 
++int tegra_xusb_padctl_get_port_number(struct phy *phy)
++{
++	struct tegra_xusb_lane *lane;
++
++	if (!phy)
++		return -ENODEV;
++
++	lane = phy_get_drvdata(phy);
++
++	return lane->index;
++}
++EXPORT_SYMBOL_GPL(tegra_xusb_padctl_get_port_number);
++
+ MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
+ MODULE_DESCRIPTION("Tegra XUSB Pad Controller driver");
+ MODULE_LICENSE("GPL v2");
+--- a/include/linux/phy/tegra/xusb.h
++++ b/include/linux/phy/tegra/xusb.h
+@@ -26,6 +26,7 @@ void tegra_phy_xusb_utmi_pad_power_down(
+ int tegra_phy_xusb_utmi_port_reset(struct phy *phy);
+ int tegra_xusb_padctl_get_usb3_companion(struct tegra_xusb_padctl *padctl,
+ 					 unsigned int port);
++int tegra_xusb_padctl_get_port_number(struct phy *phy);
+ int tegra_xusb_padctl_enable_phy_sleepwalk(struct tegra_xusb_padctl *padctl, struct phy *phy,
+ 					   enum usb_device_speed speed);
+ int tegra_xusb_padctl_disable_phy_sleepwalk(struct tegra_xusb_padctl *padctl, struct phy *phy);
diff --git a/series.conf b/series.conf
index 05fe04b..26e9a65 100644
--- a/series.conf
+++ b/series.conf
@@ -20045,6 +20045,7 @@
 	patches.suse/cpufreq-dt-always-allocate-zeroed-cpumask.patch
 	patches.suse/soc-fsl-dpio-fix-kcalloc-argument-order.patch
 	patches.suse/usb-typec-ucsi-Update-connector-cap-and-status.patch
+	patches.suse/phy-tegra-xusb-Add-API-to-retrieve-the-port-number-of-phy.patch
 	patches.suse/uio-introduce-uio_mem_dma_coherent-type.patch
 	patches.suse/cnic-bnx2-bnx2x-use-uio_mem_dma_coherent.patch
 	patches.suse/uio_pruss-uio_mem_dma_coherent-conversion.patch