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linux/drivers/usb/mtu3/mtu3_dr.h

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USB: mtu3: Use the correct style for SPDX License Identifier This patch corrects the SPDX License Identifier style in header files related to MediaTek USB3 Dual Role controller. 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> Reviewed-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/20200404103728.GA6011@nishad Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-04 16:07:31 +05:30
/* SPDX-License-Identifier: GPL-2.0 */
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
/*
* mtu3_dr.h - dual role switch and host glue layer header
*
* Copyright (C) 2016 MediaTek Inc.
*
* Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
*/
#ifndef _MTU3_DR_H_
#define _MTU3_DR_H_
usb: mtu3: dual-role mode support support dual-role mode; there are two ways to switch between host and device modes, one is by idpin, another is by debugfs which depends on user input. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:26 +08:00
#if IS_ENABLED(CONFIG_USB_MTU3_HOST) || IS_ENABLED(CONFIG_USB_MTU3_DUAL_ROLE)
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
int ssusb_host_init(struct ssusb_mtk *ssusb, struct device_node *parent_dn);
void ssusb_host_exit(struct ssusb_mtk *ssusb);
int ssusb_wakeup_of_property_parse(struct ssusb_mtk *ssusb,
struct device_node *dn);
usb: mtu3: add new helpers for host suspend/resume Extract two helpers for host suspend and resume, will make it easy to support dual-role mode suspend/resume later. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1626340078-29111-10-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-15 17:07:54 +08:00
int ssusb_host_resume(struct ssusb_mtk *ssusb, bool p0_skipped);
int ssusb_host_suspend(struct ssusb_mtk *ssusb);
usb: mtu3: supports remote wakeup for mt2712 with two SSUSB IPs The old way of usb wakeup only supports platform with single SSUSB IP, such as mt8173, but mt2712 has two SSUSB IPs, so rebuild its flow and also supports the new glue layer of usb wakeup on mt2712 which is different from mt8173. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-03 16:53:18 +08:00
void ssusb_wakeup_set(struct ssusb_mtk *ssusb, bool enable);
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
#else
static inline int ssusb_host_init(struct ssusb_mtk *ssusb,
struct device_node *parent_dn)
{
return 0;
}
static inline void ssusb_host_exit(struct ssusb_mtk *ssusb)
{}
static inline int ssusb_wakeup_of_property_parse(
struct ssusb_mtk *ssusb, struct device_node *dn)
{
return 0;
}
usb: mtu3: add new helpers for host suspend/resume Extract two helpers for host suspend and resume, will make it easy to support dual-role mode suspend/resume later. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1626340078-29111-10-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-15 17:07:54 +08:00
static inline int ssusb_host_resume(struct ssusb_mtk *ssusb, bool p0_skipped)
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
{
return 0;
}
usb: mtu3: add new helpers for host suspend/resume Extract two helpers for host suspend and resume, will make it easy to support dual-role mode suspend/resume later. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1626340078-29111-10-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-15 17:07:54 +08:00
static inline int ssusb_host_suspend(struct ssusb_mtk *ssusb)
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
{
return 0;
}
usb: mtu3: fix ssusb_wakeup_set dummy Changing from ssusb_wakeup_enable/disable to ssusb_wakeup_set was done in only one of two places in the kernel, the other one now causes a build failure: drivers/usb/mtu3/mtu3_plat.c: In function 'mtu3_suspend': drivers/usb/mtu3/mtu3_plat.c:462:2: error: implicit declaration of function 'ssusb_wakeup_set'; did you mean 'ssusb_wakeup_disable'? [-Werror=implicit-function-declaration] This adapts the dummy helpers the same way that the extern declarations were. Fixes: f0ede2c6282b ("usb: mtu3: supports remote wakeup for mt2712 with two SSUSB IPs") Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-10 17:45:21 +01:00
static inline void ssusb_wakeup_set(struct ssusb_mtk *ssusb, bool enable)
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
{}
#endif
usb: mtu3: dual-role mode support support dual-role mode; there are two ways to switch between host and device modes, one is by idpin, another is by debugfs which depends on user input. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:26 +08:00
#if IS_ENABLED(CONFIG_USB_MTU3_GADGET) || IS_ENABLED(CONFIG_USB_MTU3_DUAL_ROLE)
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
int ssusb_gadget_init(struct ssusb_mtk *ssusb);
void ssusb_gadget_exit(struct ssusb_mtk *ssusb);
usb: mtu3: support suspend/resume for device mode Support suspend/resume for device mode if the device is not connected with a host, otherwise reject to suspend. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1626340078-29111-13-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-15 17:07:57 +08:00
int ssusb_gadget_suspend(struct ssusb_mtk *ssusb, pm_message_t msg);
int ssusb_gadget_resume(struct ssusb_mtk *ssusb, pm_message_t msg);
usb: mtu3: support suspend/resume for dual-role mode Support suspend/resume for dual-role mode including the single port and multi-ports supported by host controller, when the host supports mult-ports, only port0 (u2/u3) is used to support dual role mode. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1626340078-29111-14-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-15 17:07:58 +08:00
bool ssusb_gadget_ip_sleep_check(struct ssusb_mtk *ssusb);
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
#else
static inline int ssusb_gadget_init(struct ssusb_mtk *ssusb)
{
return 0;
}
static inline void ssusb_gadget_exit(struct ssusb_mtk *ssusb)
{}
usb: mtu3: support suspend/resume for device mode Support suspend/resume for device mode if the device is not connected with a host, otherwise reject to suspend. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1626340078-29111-13-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-15 17:07:57 +08:00
static inline int
ssusb_gadget_suspend(struct ssusb_mtk *ssusb, pm_message_t msg)
{
return 0;
}
static inline int
ssusb_gadget_resume(struct ssusb_mtk *ssusb, pm_message_t msg)
{
return 0;
}
usb: mtu3: support suspend/resume for dual-role mode Support suspend/resume for dual-role mode including the single port and multi-ports supported by host controller, when the host supports mult-ports, only port0 (u2/u3) is used to support dual role mode. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1626340078-29111-14-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-15 17:07:58 +08:00
static inline bool ssusb_gadget_ip_sleep_check(struct ssusb_mtk *ssusb)
{
return true;
}
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
#endif
usb: mtu3: dual-role mode support support dual-role mode; there are two ways to switch between host and device modes, one is by idpin, another is by debugfs which depends on user input. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:26 +08:00
#if IS_ENABLED(CONFIG_USB_MTU3_DUAL_ROLE)
int ssusb_otg_switch_init(struct ssusb_mtk *ssusb);
void ssusb_otg_switch_exit(struct ssusb_mtk *ssusb);
usb: mtu3: register a USB Role Switch for dual role mode Because extcon is not allowed for new bindings, and the dual role switch is supported by USB Role Switch, especially for Type-C drivers, so register a USB Role Switch to support the new way Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1567070558-29417-12-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-29 17:22:38 +08:00
void ssusb_mode_switch(struct ssusb_mtk *ssusb, int to_host);
usb: mtu3: dual-role mode support support dual-role mode; there are two ways to switch between host and device modes, one is by idpin, another is by debugfs which depends on user input. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:26 +08:00
int ssusb_set_vbus(struct otg_switch_mtk *otg_sx, int is_on);
usb: mtu3: use FORCE/RG_IDDIG to implement manual DRD switch In order to keep manual DRD switch independent on IDDIG interrupt, make use of FORCE/RG_IDDIG instead of IDDIG EINT interrupt to implement manual DRD switch function. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-10-13 17:10:42 +08:00
void ssusb_set_force_mode(struct ssusb_mtk *ssusb,
enum mtu3_dr_force_mode mode);
usb: mtu3: dual-role mode support support dual-role mode; there are two ways to switch between host and device modes, one is by idpin, another is by debugfs which depends on user input. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:26 +08:00
#else
static inline int ssusb_otg_switch_init(struct ssusb_mtk *ssusb)
{
return 0;
}
static inline void ssusb_otg_switch_exit(struct ssusb_mtk *ssusb)
{}
usb: mtu3: register a USB Role Switch for dual role mode Because extcon is not allowed for new bindings, and the dual role switch is supported by USB Role Switch, especially for Type-C drivers, so register a USB Role Switch to support the new way Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1567070558-29417-12-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-29 17:22:38 +08:00
static inline void ssusb_mode_switch(struct ssusb_mtk *ssusb, int to_host)
{}
usb: mtu3: move vbus and mode debugfs interfaces into mtu3_debugfs.c Due to the separated debugfs files are added, move vbus and mode debugfs interfaces related with dual-role switch from mtu3_dr.c into mtu3_debugfs.c Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-21 10:53:47 +08:00
usb: mtu3: dual-role mode support support dual-role mode; there are two ways to switch between host and device modes, one is by idpin, another is by debugfs which depends on user input. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:26 +08:00
static inline int ssusb_set_vbus(struct otg_switch_mtk *otg_sx, int is_on)
{
return 0;
}
usb: mtu3: use FORCE/RG_IDDIG to implement manual DRD switch In order to keep manual DRD switch independent on IDDIG interrupt, make use of FORCE/RG_IDDIG instead of IDDIG EINT interrupt to implement manual DRD switch function. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-10-13 17:10:42 +08:00
static inline void
ssusb_set_force_mode(struct ssusb_mtk *ssusb, enum mtu3_dr_force_mode mode)
{}
usb: mtu3: dual-role mode support support dual-role mode; there are two ways to switch between host and device modes, one is by idpin, another is by debugfs which depends on user input. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:26 +08:00
#endif
usb: mtu3: host only mode support supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19 10:28:25 +08:00
#endif /* _MTU3_DR_H_ */
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