user/sven/linux.git/drivers/phy/tegra, branch v5.18.16

phy: tegra: xusb: Fix return value of tegra_xusb_find_port_node function

2021-12-14T07:37:21Z

callers of tegra_xusb_find_port_node() function only do NULL checking for the return value. return NULL instead of ERR_PTR(-ENOMEM) to keep consistent. Signed-off-by: Miaoqian Lin Acked-by: Thierry Reding Link: https://lore.kernel.org/r/20211213020507.1458-1-linmq006@gmail.com Signed-off-by: Vinod Koul

phy: tegra: xusb: mark PM functions as __maybe_unused

2021-07-22T09:11:07Z

When these are not referenced, gcc prints a harmless warning: drivers/phy/tegra/xusb.c:1286:12: error: 'tegra_xusb_padctl_resume_noirq' defined but not used [-Werror=unused-function] 1286 | static int tegra_xusb_padctl_resume_noirq(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/phy/tegra/xusb.c:1276:12: error: 'tegra_xusb_padctl_suspend_noirq' defined but not used [-Werror=unused-function] 1276 | static int tegra_xusb_padctl_suspend_noirq(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fixes: c545a9056712 ("phy: tegra: xusb: Add sleepwalk and suspend/resume") Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20210721152550.2976003-1-arnd@kernel.org Signed-off-by: Vinod Koul

phy: tegra: xusb: Add wake/sleepwalk for Tegra186

2021-06-03T12:52:45Z

This commit implements Tegra186/Tegra194 XUSB PADCTL/AO wake and sleepwalk operations. Signed-off-by: JC Kuo Acked-By: Vinod Koul Signed-off-by: Thierry Reding

phy: tegra: xusb: Tegra210 host mode VBUS control

2021-06-03T12:52:45Z

To support XUSB host controller ELPG, this commit moves VBUS control .phy_power_on()/.phy_power_off() to .phy_init()/.phy_exit(). When XUSB host controller enters ELPG, host driver invokes .phy_power_off(), VBUS should remain ON so that USB devices will not disconnect. VBUS can be turned OFF when host driver invokes .phy_exit() which indicates disabling a USB port. Signed-off-by: JC Kuo Acked-By: Vinod Koul Signed-off-by: Thierry Reding

phy: tegra: xusb: Add wake/sleepwalk for Tegra210

2021-06-03T12:52:40Z

This commit implements Tegra210 XUSB PADCTL wake and sleepwalk routines. Sleepwalk logic is in PMC (always-on) hardware block. PMC driver provides managed access to the sleepwalk registers via regmap framework. Signed-off-by: JC Kuo Acked-By: Vinod Koul Signed-off-by: Thierry Reding

phy: tegra: xusb: Add sleepwalk and suspend/resume

2021-06-03T12:49:34Z

This commit adds sleepwalk/wake and suspend/resume interfaces to Tegra XUSB PHY driver. Tegra XUSB host controller driver makes use of sleepwalk functions to enable/disable sleepwalk circuit which is in always-on partition and can respond to USB resume signals when controller is not powered. Sleepwalk can be enabled/disabled for any USB UPHY individually. - tegra_xusb_padctl_enable_phy_sleepwalk() - tegra_xusb_padctl_disable_phy_sleepwalk() Tegra XUSB host controller driver makes use of wake functions to enable/disable/query wake circuit which is in always-on partition can wake system up when USB resume happens. Wake circuit can be enabled/disabled for any USB PHY individually. - tegra_xusb_padctl_enable_phy_wake() - tegra_xusb_padctl_disable_phy_wake() - tegra_xusb_padctl_remote_wake_detected() This commit also adds two system suspend stubs that can be used to save and restore XUSB PADCTL context during system suspend and resume. - tegra_xusb_padctl_suspend_noirq() - tegra_xusb_padctl_resume_noirq() Signed-off-by: JC Kuo Acked-By: Vinod Koul Signed-off-by: Thierry Reding

phy: tegra: xusb: Add Tegra210 lane_iddq operation

2021-06-03T12:49:33Z

As per Tegra210 TRM, before changing lane assignments, driver should keep lanes in IDDQ and sleep state; after changing lane assignments, driver should bring lanes out of IDDQ. This commit implements the required operations. Signed-off-by: JC Kuo Acked-By: Vinod Koul Signed-off-by: Thierry Reding

phy: tegra: xusb: Rearrange UPHY init on Tegra210

2021-06-03T12:49:33Z

This commit is a preparation for enabling XUSB SC7 support. It rearranges Tegra210 XUSB PADCTL UPHY initialization sequence, for the following reasons: 1. PLLE hardware power sequencer has to be enabled only after both PEX UPHY PLL and SATA UPHY PLL are initialized. tegra210_uphy_init() -> tegra210_pex_uphy_enable() -> tegra210_sata_uphy_enable() -> tegra210_plle_hw_sequence_start() -> tegra210_aux_mux_lp0_clamp_disable() 2. At cold boot and SC7 exit, the following bits must be cleared after PEX/SATA lanes are out of IDDQ (IDDQ_DISABLE=1). a. XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN, b. XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY c. XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN tegra210_pex_uphy_enable() and tegra210_sata_uphy_enable() are in charge of bringing lanes out of IDDQ, and then AUX_MUX_LP0_* bits will be cleared by tegra210_aux_mux_lp0_clamp_disable(). 3. Once UPHY PLL hardware power sequencer is enabled, do not assert reset to PEX/SATA PLLs, otherwise UPHY PLL operation will be broken. Signed-off-by: JC Kuo Acked-By: Vinod Koul Signed-off-by: Thierry Reding

phy: tegra: xusb: Move usb3 port init for Tegra210

2021-06-03T12:49:33Z

The programming sequence in tegra210_usb3_port_enable() is required for both cold boot and SC7 exit, and must be performed only after PEX/SATA UPHY is initialized. Therefore, this commit moves the programming sequence to tegra210_usb3_phy_power_on(). PCIE/SATA phy .power_on() stub will invoke tegra210_usb3_phy_power_on() if the lane is assigned for XUSB super-speed. Signed-off-by: JC Kuo Acked-By: Vinod Koul Signed-off-by: Thierry Reding

Merge tag 'phy-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into char-misc-next

2020-12-09T13:26:40Z

Vinod writes: phy-for-5.11 - New phy drivers: - Mediatek MT7621 PCIe PHY (promoted from staging) - Ingenic USB phy driver supporting JZ4775 and X2000 - Intel Keem Bay USB PHY driver - Marvell USB HSIC PHY driver supporting MMP3 SoC - AXG MIPI D-PHY driver - Updates: - Conversion to YAML binding for: - Broadcom SATA PHY - Cadence Sierra PHY bindings - STM32 USBC Phy - Support for Exynos5433 PCIe PHY - Support for Qualcomm SM8250 PCIe QMP PHY - Support for Exynos5420 USB2 phy - devm_platform_ioremap_resource conversion for bunch of drivers * tag 'phy-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (72 commits) drm/mediatek: avoid dereferencing a null hdmi_phy on an error message phy: ingenic: depend on HAS_IOMEM phy: mediatek: statify mtk_hdmi_phy_driver dt-bindings: phy: Convert Broadcom SATA PHY to YAML devicetree: phy: rockchip-emmc add output-tapdelay-select phy: rockchip-emmc: output tap delay dt property PHY: Ingenic: Add USB PHY driver using generic PHY framework. dt-bindings: USB: Add bindings for Ingenic JZ4775 and X2000. USB: PHY: JZ4770: Remove unnecessary function calls. devicetree: phy: rockchip-emmc: pulldown property phy: rockchip: set pulldown for strobe line in dts phy: renesas: rcar-gen3-usb2: disable runtime pm in case of failure phy: mediatek: allow compile-testing the hdmi phy phy/rockchip: Make PHY_ROCKCHIP_INNO_HDMI depend on HAS_IOMEM to fix build error phy: samsung: Merge Kconfig for Exynos5420 and Exynos5250 phy: ralink: phy-mt7621-pci: set correct name in MODULE_DEVICE_TABLE macro phy: ralink: phy-mt7621-pci: drop 'COMPILE_TEST' from Kconfig phy: mediatek: Make PHY_MTK_{XSPHY, TPHY} depend on HAS_IOMEM and OF_ADDRESS to fix build errors phy: tegra: xusb: Fix usb_phy device driver field phy: amlogic: replace devm_reset_control_array_get() ...