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linux/drivers/usb/host/xhci-plat.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 struct xhci_plat_priv This patch adds struct xhci_plat_priv to simplify the code to match platform specific variables. For now, this patch adds a member "type" in the structure. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-24 11:09:49 +00:00
/*
* xhci-plat.h - xHCI host controller driver platform Bus Glue.
*
* Copyright (C) 2015 Renesas Electronics Corporation
*/
#ifndef _XHCI_PLAT_H
#define _XHCI_PLAT_H
#include "xhci.h" /* for hcd_to_xhci() */
struct xhci_plat_priv {
usb: host: xhci-plat: add firmware_name in xhci_plat_priv This patch adds a member "firmware_name" in struct xhci_plat_priv to simplify the code to match specific firmware name. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-24 11:09:50 +00:00
const char *firmware_name;
usb: host: xhci-plat: add quirks member into struct xhci_plat_priv To simplify adding xhci->quirks instead of the .init_quirk() function, this patch adds a new parameter "quirks" into the struct xhci_plat_priv. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/1567425698-27560-2-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-02 12:01:36 +00:00
unsigned long long quirks;
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 (*plat_setup)(struct usb_hcd *);
usb: xhci: plat: add ->plat_start() and ->init_quirk() methods these two methods will be used to hide platform-specific details so we can get rid of xhci_plat_type_is() in a later patch. 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 10:17:13 +00:00
void (*plat_start)(struct usb_hcd *);
int (*init_quirk)(struct usb_hcd *);
usb: host: xhci-plat: add .suspend_quirk for struct xhci_plat_priv Some platforms (eg cdns3) may have special sequences between xhci_bus_suspend and xhci_suspend, add .suspend_quick for it. Reviewed-by: Jun Li <jun.li@nxp.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200918131752.16488-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-18 13:17:44 +00:00
int (*suspend_quirk)(struct usb_hcd *);
usb: host: xhci-plat: add resume_quirk() This patch adds resume_quirk() to do platform specific process in resume timing. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-19 13:55:47 +00:00
int (*resume_quirk)(struct usb_hcd *);
usb: host: xhci-plat: add struct xhci_plat_priv This patch adds struct xhci_plat_priv to simplify the code to match platform specific variables. For now, this patch adds a member "type" in the structure. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-24 11:09:49 +00:00
};
#define hcd_to_xhci_priv(h) ((struct xhci_plat_priv *)hcd_to_xhci(h)->priv)
usb: host: xhci-plat: add quirks member into struct xhci_plat_priv To simplify adding xhci->quirks instead of the .init_quirk() function, this patch adds a new parameter "quirks" into the struct xhci_plat_priv. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/1567425698-27560-2-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-02 12:01:36 +00:00
#define xhci_to_priv(x) ((struct xhci_plat_priv *)(x)->priv)
usb: host: xhci-plat: add struct xhci_plat_priv This patch adds struct xhci_plat_priv to simplify the code to match platform specific variables. For now, this patch adds a member "type" in the structure. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-24 11:09:49 +00:00
#endif /* _XHCI_PLAT_H */
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