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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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d755cdb1b9
Some vendors glue layer need to handle some events for vbus, eg, some i.mx platforms (imx7d, imx8mm, imx8mn, etc) needs vbus event to handle charger detection, its charger detection is finished at glue layer code, but not at USB PHY driver. Signed-off-by: Peter Chen <peter.chen@nxp.com>
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Platform data for the chipidea USB dual role controller
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*/
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#ifndef __LINUX_USB_CHIPIDEA_H
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#define __LINUX_USB_CHIPIDEA_H
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#include <linux/extcon.h>
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#include <linux/usb/otg.h>
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struct ci_hdrc;
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/**
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* struct ci_hdrc_cable - structure for external connector cable state tracking
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* @connected: true if cable is connected, false otherwise
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* @changed: set to true when extcon event happen
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* @enabled: set to true if we've enabled the vbus or id interrupt
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* @edev: device which generate events
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* @ci: driver state of the chipidea device
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* @nb: hold event notification callback
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* @conn: used for notification registration
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*/
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struct ci_hdrc_cable {
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bool connected;
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bool changed;
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bool enabled;
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struct extcon_dev *edev;
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struct ci_hdrc *ci;
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struct notifier_block nb;
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};
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struct ci_hdrc_platform_data {
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const char *name;
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/* offset of the capability registers */
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uintptr_t capoffset;
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unsigned power_budget;
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struct phy *phy;
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/* old usb_phy interface */
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struct usb_phy *usb_phy;
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enum usb_phy_interface phy_mode;
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unsigned long flags;
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#define CI_HDRC_REGS_SHARED BIT(0)
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#define CI_HDRC_DISABLE_DEVICE_STREAMING BIT(1)
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#define CI_HDRC_SUPPORTS_RUNTIME_PM BIT(2)
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#define CI_HDRC_DISABLE_HOST_STREAMING BIT(3)
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#define CI_HDRC_DISABLE_STREAMING (CI_HDRC_DISABLE_DEVICE_STREAMING | \
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CI_HDRC_DISABLE_HOST_STREAMING)
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/*
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* Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1,
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* but otg is not supported (no register otgsc).
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*/
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#define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4)
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#define CI_HDRC_IMX28_WRITE_FIX BIT(5)
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#define CI_HDRC_FORCE_FULLSPEED BIT(6)
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#define CI_HDRC_TURN_VBUS_EARLY_ON BIT(7)
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#define CI_HDRC_SET_NON_ZERO_TTHA BIT(8)
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#define CI_HDRC_OVERRIDE_AHB_BURST BIT(9)
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#define CI_HDRC_OVERRIDE_TX_BURST BIT(10)
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#define CI_HDRC_OVERRIDE_RX_BURST BIT(11)
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#define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(12) /* Glue layer manages phy */
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#define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(13)
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#define CI_HDRC_IMX_IS_HSIC BIT(14)
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#define CI_HDRC_PMQOS BIT(15)
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enum usb_dr_mode dr_mode;
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#define CI_HDRC_CONTROLLER_RESET_EVENT 0
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#define CI_HDRC_CONTROLLER_STOPPED_EVENT 1
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#define CI_HDRC_IMX_HSIC_ACTIVE_EVENT 2
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#define CI_HDRC_IMX_HSIC_SUSPEND_EVENT 3
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#define CI_HDRC_CONTROLLER_VBUS_EVENT 4
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int (*notify_event) (struct ci_hdrc *ci, unsigned event);
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struct regulator *reg_vbus;
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struct usb_otg_caps ci_otg_caps;
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bool tpl_support;
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/* interrupt threshold setting */
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u32 itc_setting;
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u32 ahb_burst_config;
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u32 tx_burst_size;
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u32 rx_burst_size;
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/* VBUS and ID signal state tracking, using extcon framework */
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struct ci_hdrc_cable vbus_extcon;
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struct ci_hdrc_cable id_extcon;
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u32 phy_clkgate_delay_us;
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/* pins */
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struct pinctrl *pctl;
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struct pinctrl_state *pins_default;
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struct pinctrl_state *pins_host;
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struct pinctrl_state *pins_device;
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};
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/* Default offset of capability registers */
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#define DEF_CAPOFFSET 0x100
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/* Add ci hdrc device */
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struct platform_device *ci_hdrc_add_device(struct device *dev,
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struct resource *res, int nres,
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struct ci_hdrc_platform_data *platdata);
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/* Remove ci hdrc device */
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void ci_hdrc_remove_device(struct platform_device *pdev);
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#endif
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