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linux-stable/drivers/usb/host/xhci-mvebu.h

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USB: host: Use the correct style for SPDX License Identifier This patch corrects the SPDX License Identifier style in header files related to USB host controller drivers. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used). Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Link: https://lore.kernel.org/r/20200404092135.GA4522@nishad Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-04 09:21:40 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers The Armada 375 and 38x SoCs come with an XHCI controller that requires some specific initialization related to the MBus windows configuration. This patch adds the support for this special configuration as an XHCI quirk executed during probe. Two new compatible strings are added to identify the Armada 375 and Armada 38x XHCI controllers, and therefore enable the relevant quirk. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 10:17:33 +00:00
/*
* Copyright (C) 2014 Marvell
*
* Gregory Clement <gregory.clement@free-electrons.com>
*/
#ifndef __LINUX_XHCI_MVEBU_H
#define __LINUX_XHCI_MVEBU_H
usb: host: xhci: plat: change type of mvebu init_quirk() Just like RCAR's init_quirk() we want mvebu's to use struct usb_hcd * as argument too. This is another step towards removing xhci_plat_type_is(). Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-22 10:17:15 +00:00
struct usb_hcd;
usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers The Armada 375 and 38x SoCs come with an XHCI controller that requires some specific initialization related to the MBus windows configuration. This patch adds the support for this special configuration as an XHCI quirk executed during probe. Two new compatible strings are added to identify the Armada 375 and Armada 38x XHCI controllers, and therefore enable the relevant quirk. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 10:17:33 +00:00
#if IS_ENABLED(CONFIG_USB_XHCI_MVEBU)
usb: host: xhci: plat: change type of mvebu init_quirk() Just like RCAR's init_quirk() we want mvebu's to use struct usb_hcd * as argument too. This is another step towards removing xhci_plat_type_is(). Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-22 10:17:15 +00:00
int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd);
usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720 Older ATF does not provide SMC call for USB 3.0 phy power on functionality and therefore initialization of xhci-hcd is failing when older version of ATF is used. In this case phy_power_on() function returns -EOPNOTSUPP. [ 3.108467] mvebu-a3700-comphy d0018300.phy: unsupported SMC call, try updating your firmware [ 3.117250] phy phy-d0018300.phy.0: phy poweron failed --> -95 [ 3.123465] xhci-hcd: probe of d0058000.usb failed with error -95 This patch introduces a new plat_setup callback for xhci platform drivers which is called prior calling usb_add_hcd() function. This function at its beginning skips PHY init if hcd->skip_phy_initialization is set. Current init_quirk callback for xhci platform drivers is called from xhci_plat_setup() function which is called after chip reset completes. It happens in the middle of the usb_add_hcd() function and therefore this callback cannot be used for setting if PHY init should be skipped or not. For Armada 3720 this patch introduce a new xhci_mvebu_a3700_plat_setup() function configured as a xhci platform plat_setup callback. This new function calls phy_power_on() and in case it returns -EOPNOTSUPP then XHCI_SKIP_PHY_INIT quirk is set to instruct xhci-plat to skip PHY initialization. This patch fixes above failure by ignoring 'not supported' error in xhci-hcd driver. In this case it is expected that phy is already power on. It fixes initialization of xhci-hcd on Espressobin boards where is older Marvell's Arm Trusted Firmware without SMC call for USB 3.0 phy power. This is regression introduced in commit bd3d25b07342 ("arm64: dts: marvell: armada-37xx: link USB hosts with their PHYs") where USB 3.0 phy was defined and therefore xhci-hcd on Espressobin with older ATF started failing. Fixes: bd3d25b07342 ("arm64: dts: marvell: armada-37xx: link USB hosts with their PHYs") Cc: <stable@vger.kernel.org> # 5.1+: ea17a0f153af: phy: marvell: comphy: Convert internal SMCC firmware return codes to errno Cc: <stable@vger.kernel.org> # 5.1+: f768e718911e: usb: host: xhci-plat: add priv quirk for skip PHY initialization Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> # On R-Car Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> # xhci-plat Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20210201150803.7305-1-pali@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-01 15:08:03 +00:00
int xhci_mvebu_a3700_plat_setup(struct usb_hcd *hcd);
usb: host: xhci: mvebu: add reset on resume quirk The mvebu xHCI host driver does not have suspend/resume support. Use of the XHCI_RESET_ON_RESUME quirk is mandatory in order to avoid failures after resume. This will work only if no USB device is plugged-in. While at it, mention in the Kconfig file that this IP is also present on the A3700 SoC. Signed-off-by: Ofer Heifetz <oferh@marvell.com> [miquel.raynal@bootlin.com: Reword the commit message] Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-29 09:23:41 +00:00
int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd);
usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers The Armada 375 and 38x SoCs come with an XHCI controller that requires some specific initialization related to the MBus windows configuration. This patch adds the support for this special configuration as an XHCI quirk executed during probe. Two new compatible strings are added to identify the Armada 375 and Armada 38x XHCI controllers, and therefore enable the relevant quirk. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 10:17:33 +00:00
#else
usb: host: xhci: plat: change type of mvebu init_quirk() Just like RCAR's init_quirk() we want mvebu's to use struct usb_hcd * as argument too. This is another step towards removing xhci_plat_type_is(). Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-22 10:17:15 +00:00
static inline int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd)
usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers The Armada 375 and 38x SoCs come with an XHCI controller that requires some specific initialization related to the MBus windows configuration. This patch adds the support for this special configuration as an XHCI quirk executed during probe. Two new compatible strings are added to identify the Armada 375 and Armada 38x XHCI controllers, and therefore enable the relevant quirk. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 10:17:33 +00:00
{
return 0;
}
usb: host: xhci: mvebu: add reset on resume quirk The mvebu xHCI host driver does not have suspend/resume support. Use of the XHCI_RESET_ON_RESUME quirk is mandatory in order to avoid failures after resume. This will work only if no USB device is plugged-in. While at it, mention in the Kconfig file that this IP is also present on the A3700 SoC. Signed-off-by: Ofer Heifetz <oferh@marvell.com> [miquel.raynal@bootlin.com: Reword the commit message] Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-29 09:23:41 +00:00
usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720 Older ATF does not provide SMC call for USB 3.0 phy power on functionality and therefore initialization of xhci-hcd is failing when older version of ATF is used. In this case phy_power_on() function returns -EOPNOTSUPP. [ 3.108467] mvebu-a3700-comphy d0018300.phy: unsupported SMC call, try updating your firmware [ 3.117250] phy phy-d0018300.phy.0: phy poweron failed --> -95 [ 3.123465] xhci-hcd: probe of d0058000.usb failed with error -95 This patch introduces a new plat_setup callback for xhci platform drivers which is called prior calling usb_add_hcd() function. This function at its beginning skips PHY init if hcd->skip_phy_initialization is set. Current init_quirk callback for xhci platform drivers is called from xhci_plat_setup() function which is called after chip reset completes. It happens in the middle of the usb_add_hcd() function and therefore this callback cannot be used for setting if PHY init should be skipped or not. For Armada 3720 this patch introduce a new xhci_mvebu_a3700_plat_setup() function configured as a xhci platform plat_setup callback. This new function calls phy_power_on() and in case it returns -EOPNOTSUPP then XHCI_SKIP_PHY_INIT quirk is set to instruct xhci-plat to skip PHY initialization. This patch fixes above failure by ignoring 'not supported' error in xhci-hcd driver. In this case it is expected that phy is already power on. It fixes initialization of xhci-hcd on Espressobin boards where is older Marvell's Arm Trusted Firmware without SMC call for USB 3.0 phy power. This is regression introduced in commit bd3d25b07342 ("arm64: dts: marvell: armada-37xx: link USB hosts with their PHYs") where USB 3.0 phy was defined and therefore xhci-hcd on Espressobin with older ATF started failing. Fixes: bd3d25b07342 ("arm64: dts: marvell: armada-37xx: link USB hosts with their PHYs") Cc: <stable@vger.kernel.org> # 5.1+: ea17a0f153af: phy: marvell: comphy: Convert internal SMCC firmware return codes to errno Cc: <stable@vger.kernel.org> # 5.1+: f768e718911e: usb: host: xhci-plat: add priv quirk for skip PHY initialization Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> # On R-Car Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> # xhci-plat Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20210201150803.7305-1-pali@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-01 15:08:03 +00:00
static inline int xhci_mvebu_a3700_plat_setup(struct usb_hcd *hcd)
{
return 0;
}
usb: host: xhci: mvebu: add reset on resume quirk The mvebu xHCI host driver does not have suspend/resume support. Use of the XHCI_RESET_ON_RESUME quirk is mandatory in order to avoid failures after resume. This will work only if no USB device is plugged-in. While at it, mention in the Kconfig file that this IP is also present on the A3700 SoC. Signed-off-by: Ofer Heifetz <oferh@marvell.com> [miquel.raynal@bootlin.com: Reword the commit message] Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-29 09:23:41 +00:00
static inline int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd)
{
return 0;
}
usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers The Armada 375 and 38x SoCs come with an XHCI controller that requires some specific initialization related to the MBus windows configuration. This patch adds the support for this special configuration as an XHCI quirk executed during probe. Two new compatible strings are added to identify the Armada 375 and Armada 38x XHCI controllers, and therefore enable the relevant quirk. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 10:17:33 +00:00
#endif
#endif /* __LINUX_XHCI_MVEBU_H */
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