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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 14:51:40 +05:30
/* 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 13:09:49 +02:00
/*
* xhci-plat.h - xHCI host controller driver platform Bus Glue.
*
* Copyright (C) 2015 Renesas Electronics Corporation
*/
#ifndef _XHCI_PLAT_H
#define _XHCI_PLAT_H
usb: xhci-plat: Don't include xhci.h The xhci_plat.h should not need to include the entire xhci.h header. This can cause redefinition in dwc3 if it selectively includes some xHCI definitions. This is a prerequisite change for a fix to disable suspend during initialization for dwc3. Cc: stable@vger.kernel.org Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/310acfa01c957a10d9feaca3f7206269866ba2eb.1713394973.git.Thinh.Nguyen@synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-17 23:14:30 +00:00
struct device;
struct platform_device;
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 13:09:49 +02:00
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 13:09:50 +02:00
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 21:01:36 +09:00
unsigned long long quirks;
usb: host: xhci-plat: allow upper layers to signal power loss Now that xhci_resume() exposes a power_lost boolean argument, expose that to all xhci-plat implementations. They are free to set it from wherever they want: - Their own resume() callback. - The xhci_plat_priv::resume_quirk() callback. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-8-13658a271c3c@bootlin.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-02-05 18:36:53 +01:00
bool power_lost;
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 13:17:13 +03:00
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 16:17:44 +03:00
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 16:55:47 +03:00
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 13:09:49 +02:00
};
#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 21:01:36 +09:00
#define xhci_to_priv(x) ((struct xhci_plat_priv *)(x)->priv)
xhci: split out rcar/rz support from xhci-plat.c The USB_XHCI_RZV2M and USB_RENESAS_USB3 select other drivers based on the enabled SoC types, which leads to build failures when the dependencies are not met: WARNING: unmet direct dependencies detected for USB_RZV2M_USB3DRD Depends on [n]: USB_SUPPORT [=y] && USB_GADGET [=n] && (ARCH_R9A09G011 [=n] || COMPILE_TEST [=y]) Selected by [m]: - USB_XHCI_RZV2M [=m] && USB_SUPPORT [=y] && USB [=y] && USB_XHCI_HCD [=m] && USB_XHCI_PLATFORM [=m] && (ARCH_R9A09G011 [=n] || COMPILE_TEST [=y]) ERROR: modpost: "rzv2m_usb3drd_reset" [drivers/usb/host/xhci-plat-hcd.ko] undefined! The xhci-rcar driver has a reverse dependency with the xhci core, and it depends on the UDC driver in turn. To untangle this, make the xhci-rcar.ko driver a standalone module that just calls into the xhci-plat.ko module like other drivers do. This allows handling the dependency on the USB_RZV2M_USB3DRD driver to only affect the xhci-rcar module and simplify the xhci-plat module. It also allows leaving out the hacks for broken dma mask and nested devices from the rcar side and keep that only in the generic xhci driver. As a future cleanup, the marvell and dwc3 specific bits of xhci-plat.c could be moved out as well, but that is not required for this bugfix. Fixes: c52c9acc415e ("xhci: host: Add Renesas RZ/V2M SoC support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20230131150531.12347-1-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-31 16:04:31 +01:00
int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev,
const struct xhci_plat_priv *priv_match);
usb: xhci-plat: Convert to platform remove callback returning void 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 ignored (apart from emitting a warning) 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. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). To convert the xhci-plat driver, change the prototype of xhci_plat_remove() to return void. As this function is exported and used by the xhci-rcar driver, convert this driver at the same time accordingly. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230530071913.2192214-5-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-30 09:19:11 +02:00
void xhci_plat_remove(struct platform_device *dev);
xhci: split out rcar/rz support from xhci-plat.c The USB_XHCI_RZV2M and USB_RENESAS_USB3 select other drivers based on the enabled SoC types, which leads to build failures when the dependencies are not met: WARNING: unmet direct dependencies detected for USB_RZV2M_USB3DRD Depends on [n]: USB_SUPPORT [=y] && USB_GADGET [=n] && (ARCH_R9A09G011 [=n] || COMPILE_TEST [=y]) Selected by [m]: - USB_XHCI_RZV2M [=m] && USB_SUPPORT [=y] && USB [=y] && USB_XHCI_HCD [=m] && USB_XHCI_PLATFORM [=m] && (ARCH_R9A09G011 [=n] || COMPILE_TEST [=y]) ERROR: modpost: "rzv2m_usb3drd_reset" [drivers/usb/host/xhci-plat-hcd.ko] undefined! The xhci-rcar driver has a reverse dependency with the xhci core, and it depends on the UDC driver in turn. To untangle this, make the xhci-rcar.ko driver a standalone module that just calls into the xhci-plat.ko module like other drivers do. This allows handling the dependency on the USB_RZV2M_USB3DRD driver to only affect the xhci-rcar module and simplify the xhci-plat module. It also allows leaving out the hacks for broken dma mask and nested devices from the rcar side and keep that only in the generic xhci driver. As a future cleanup, the marvell and dwc3 specific bits of xhci-plat.c could be moved out as well, but that is not required for this bugfix. Fixes: c52c9acc415e ("xhci: host: Add Renesas RZ/V2M SoC support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20230131150531.12347-1-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-31 16:04:31 +01:00
extern const struct dev_pm_ops xhci_plat_pm_ops;
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 13:09:49 +02:00
#endif /* _XHCI_PLAT_H */
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