linux/drivers/phy/tegra, branch v6.4

phy: tegra: xusb: Add missing tegra_xusb_port_unregister for usb2_port and ulpi_port

2023-04-12T16:21:42Z

The tegra_xusb_port_unregister should be called when usb2_port and ulpi_port map fails in tegra_xusb_add_usb2_port() or in tegra_xusb_add_ulpi_port(), fix it. Fixes: 53d2a715c240 ("phy: Add Tegra XUSB pad controller support") Signed-off-by: Gaosheng Cui Acked-by: Thierry Reding Link: https://lore.kernel.org/r/20221129111634.1547747-1-cuigaosheng1@huawei.com Signed-off-by: Vinod Koul

phy: tegra: xusb: Support sleepwalk for Tegra234

2023-03-20T12:44:59Z

Add new registers programming in sleepwalk sequence for Tegra234: MASTER_ENABLE_A/B/C/D in XUSB_AO_UTMIP_SLEEPWALK. Signed-off-by: Henry Lin Signed-off-by: Haotien Hsu Link: https://lore.kernel.org/r/20230309061708.4156383-1-haotienh@nvidia.com Signed-off-by: Vinod Koul

phy: tegra: xusb: Convert to platform remove callback returning void

2023-03-20T12:44:58Z

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230307115900.2293120-25-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul

phy: tegra: xusb: Support USB role default mode

2023-01-13T17:50:30Z

Support role-switch-default-mode property when usb-role-switch is enabled. Signed-off-by: Haotien Hsu Link: https://lore.kernel.org/r/20221216042146.99307-1-haotienh@nvidia.com Signed-off-by: Vinod Koul

phy: tegra: xusb: Add Tegra234 support

2023-01-12T17:27:06Z

Add support for the XUSB pad controller found on Tegra234 SoCs. It is mostly similar to the same IP found on Tegra194, because most of the Tegra234 XUSB PADCTL registers definition and programming sequence are the same as Tegra194, Tegra234 XUSB PADCTL can share the same driver with Tegra186 and Tegra194 XUSB PADCTL. Introduce a new feature, USB2 HW tracking, for Tegra234. The feature is to enable HW periodical PAD tracking which measure and capture the electric parameters of USB2.0 PAD. Signed-off-by: Sing-Han Chen Co-developed-by: Wayne Chang Signed-off-by: Wayne Chang Signed-off-by: Jon Hunter Link: https://lore.kernel.org/r/20230111110450.24617-6-jonathanh@nvidia.com Signed-off-by: Vinod Koul

phy: tegra: xusb: Disable trk clk when not in use

2023-01-12T17:27:06Z

Pad tracking is a one-time calibration for Tegra186 and Tegra194. Clk should be disabled after calibration. Disable clk after calibration. While at it add 100us delay for HW recording the calibration value. Signed-off-by: Wayne Chang Signed-off-by: Jon Hunter Link: https://lore.kernel.org/r/20230111110450.24617-5-jonathanh@nvidia.com Signed-off-by: Vinod Koul

phy: tegra: xusb: Remove usb3 supply

2022-11-07T04:50:25Z

Remove redundant codes for getting the vbus supply of usb3 ports because we get and control the vbus supply by the companion usb2 ports Signed-off-by: Wayne Chang Signed-off-by: Haotien Hsu Reviewed-by: Jon Hunter Link: https://lore.kernel.org/r/20221005084031.2154251-1-haotienh@nvidia.com Signed-off-by: Vinod Koul

Merge branch 'fixes' into next

2022-10-28T13:09:28Z

Merge the fixes to next as both carry qmp-phy patches

phy: tegra: p2u: Set ENABLE_L2_EXIT_RATE_CHANGE in calibration

2022-10-28T12:13:12Z

Set ENABLE_L2_EXIT_RATE_CHANGE register bit to request UPHY PLL rate change to Gen1 during initialization. This helps in the below surprise link down cases, - Surprise link down happens at Gen3/Gen4 link speed. - Surprise link down happens and external REFCLK is cut off, which causes UPHY PLL rate to deviate to an invalid rate. Signed-off-by: Vidya Sagar Link: https://lore.kernel.org/r/20221013183854.21087-9-vidyas@nvidia.com Signed-off-by: Vinod Koul

phy: tegra: xusb: Fix crash during pad power on/down

2022-10-17T05:37:37Z

Commit a88520bfc0ec ("usb: gadget: tegra: Reduce pad power") added calls to tegra_phy_xusb_utmi_pad_power_on/down in the Tegra XUDC driver to control the pad power. This change is causing a kernel panic when powering down the pads on entering suspend with the Jetson TX2 platform. The panic occurs because the 'xudc->curr_utmi_phy' is not configured on this platform and we do not check to see if the pointer is valid before attempting to deference the pointer. Fix this by checking to see if the 'phy' pointer passed to tegra_phy_xusb_utmi_pad_power_on/down is valid. Fixes: a88520bfc0ec ("usb: gadget: tegra: Reduce pad power") Signed-off-by: Jon Hunter Link: https://lore.kernel.org/r/20221010135132.30809-1-jonathanh@nvidia.com Signed-off-by: Vinod Koul