phy: tegra: xusb: Disable periodic tracking on Tegra234

commit 7be54870e9bf5ed0b4fe2a23b41a630527882de5 upstream.

Periodic calibration updates (~10µs) may overlap with transfers when
PCIe NVMe SSD, LPDDR, and USB2 devices operate simultaneously, causing
crosstalk on Tegra234 devices. Hence disable periodic calibration updates
and make this a one-time calibration.

Fixes: d8163a32ca95 ("phy: tegra: xusb: Add Tegra234 support")
Cc: stable@vger.kernel.org
Signed-off-by: Haotien Hsu <haotienh@nvidia.com>
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/20250519090929.3132456-3-waynec@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/phy/tegra/xusb-tegra186.c b/drivers/phy/tegra/xusb-tegra186.c
index 237b1844c0c7d42de8f8dc972b5356ed4e3b5daf..e818f6c3980e6b9028567db09404b31e5a839b5d 100644 (file)
--- a/drivers/phy/tegra/xusb-tegra186.c
+++ b/drivers/phy/tegra/xusb-tegra186.c
@@ -1726,7 +1726,7 @@ const struct tegra_xusb_padctl_soc tegra234_xusb_padctl_soc = {
        .num_supplies = ARRAY_SIZE(tegra194_xusb_padctl_supply_names),
        .supports_gen2 = true,
        .poll_trk_completed = true,
-       .trk_hw_mode = true,
+       .trk_hw_mode = false,
        .trk_update_on_idle = true,
        .supports_lp_cfg_en = true,
 };