1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Platform data for the chipidea USB dual role controller 4 */ 5 6 #ifndef __LINUX_USB_CHIPIDEA_H 7 #define __LINUX_USB_CHIPIDEA_H 8 9 #include <linux/extcon.h> 10 #include <linux/usb/otg.h> 11 12 struct ci_hdrc; 13 14 /** 15 * struct ci_hdrc_cable - structure for external connector cable state tracking 16 * @connected: true if cable is connected, false otherwise 17 * @changed: set to true when extcon event happen 18 * @enabled: set to true if we've enabled the vbus or id interrupt 19 * @edev: device which generate events 20 * @ci: driver state of the chipidea device 21 * @nb: hold event notification callback 22 * @conn: used for notification registration 23 */ 24 struct ci_hdrc_cable { 25 bool connected; 26 bool changed; 27 bool enabled; 28 struct extcon_dev *edev; 29 struct ci_hdrc *ci; 30 struct notifier_block nb; 31 }; 32 33 struct ci_hdrc_platform_data { 34 const char *name; 35 /* offset of the capability registers */ 36 uintptr_t capoffset; 37 unsigned power_budget; 38 struct phy *phy; 39 /* old usb_phy interface */ 40 struct usb_phy *usb_phy; 41 enum usb_phy_interface phy_mode; 42 unsigned long flags; 43 #define CI_HDRC_REGS_SHARED BIT(0) 44 #define CI_HDRC_DISABLE_DEVICE_STREAMING BIT(1) 45 #define CI_HDRC_SUPPORTS_RUNTIME_PM BIT(2) 46 #define CI_HDRC_DISABLE_HOST_STREAMING BIT(3) 47 #define CI_HDRC_DISABLE_STREAMING (CI_HDRC_DISABLE_DEVICE_STREAMING | \ 48 CI_HDRC_DISABLE_HOST_STREAMING) 49 /* 50 * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1, 51 * but otg is not supported (no register otgsc). 52 */ 53 #define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4) 54 #define CI_HDRC_IMX28_WRITE_FIX BIT(5) 55 #define CI_HDRC_FORCE_FULLSPEED BIT(6) 56 #define CI_HDRC_TURN_VBUS_EARLY_ON BIT(7) 57 #define CI_HDRC_SET_NON_ZERO_TTHA BIT(8) 58 #define CI_HDRC_OVERRIDE_AHB_BURST BIT(9) 59 #define CI_HDRC_OVERRIDE_TX_BURST BIT(10) 60 #define CI_HDRC_OVERRIDE_RX_BURST BIT(11) 61 #define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(12) /* Glue layer manages phy */ 62 #define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(13) 63 #define CI_HDRC_IMX_IS_HSIC BIT(14) 64 enum usb_dr_mode dr_mode; 65 #define CI_HDRC_CONTROLLER_RESET_EVENT 0 66 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 67 #define CI_HDRC_IMX_HSIC_ACTIVE_EVENT 2 68 #define CI_HDRC_IMX_HSIC_SUSPEND_EVENT 3 69 int (*notify_event) (struct ci_hdrc *ci, unsigned event); 70 struct regulator *reg_vbus; 71 struct usb_otg_caps ci_otg_caps; 72 bool tpl_support; 73 /* interrupt threshold setting */ 74 u32 itc_setting; 75 u32 ahb_burst_config; 76 u32 tx_burst_size; 77 u32 rx_burst_size; 78 79 /* VBUS and ID signal state tracking, using extcon framework */ 80 struct ci_hdrc_cable vbus_extcon; 81 struct ci_hdrc_cable id_extcon; 82 u32 phy_clkgate_delay_us; 83 84 /* pins */ 85 struct pinctrl *pctl; 86 struct pinctrl_state *pins_default; 87 struct pinctrl_state *pins_host; 88 struct pinctrl_state *pins_device; 89 }; 90 91 /* Default offset of capability registers */ 92 #define DEF_CAPOFFSET 0x100 93 94 /* Add ci hdrc device */ 95 struct platform_device *ci_hdrc_add_device(struct device *dev, 96 struct resource *res, int nres, 97 struct ci_hdrc_platform_data *platdata); 98 /* Remove ci hdrc device */ 99 void ci_hdrc_remove_device(struct platform_device *pdev); 100 101 #endif 102