From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/usb/chipidea/ci_hdrc_imx.c | 664 +++++++++++++++++++++++++++++++++++++ 1 file changed, 664 insertions(+) create mode 100644 drivers/usb/chipidea/ci_hdrc_imx.c (limited to 'drivers/usb/chipidea/ci_hdrc_imx.c') diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c new file mode 100644 index 000000000..0dc482542 --- /dev/null +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -0,0 +1,664 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * Copyright (C) 2012 Marek Vasut + * on behalf of DENX Software Engineering GmbH + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ci.h" +#include "ci_hdrc_imx.h" + +struct ci_hdrc_imx_platform_flag { + unsigned int flags; +}; + +static const struct ci_hdrc_imx_platform_flag imx23_usb_data = { + .flags = CI_HDRC_TURN_VBUS_EARLY_ON | + CI_HDRC_DISABLE_STREAMING, +}; + +static const struct ci_hdrc_imx_platform_flag imx27_usb_data = { + .flags = CI_HDRC_DISABLE_STREAMING, +}; + +static const struct ci_hdrc_imx_platform_flag imx28_usb_data = { + .flags = CI_HDRC_IMX28_WRITE_FIX | + CI_HDRC_TURN_VBUS_EARLY_ON | + CI_HDRC_DISABLE_STREAMING, +}; + +static const struct ci_hdrc_imx_platform_flag imx6q_usb_data = { + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_TURN_VBUS_EARLY_ON | + CI_HDRC_DISABLE_STREAMING, +}; + +static const struct ci_hdrc_imx_platform_flag imx6sl_usb_data = { + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_TURN_VBUS_EARLY_ON | + CI_HDRC_DISABLE_HOST_STREAMING, +}; + +static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data = { + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_TURN_VBUS_EARLY_ON | + CI_HDRC_DISABLE_HOST_STREAMING, +}; + +static const struct ci_hdrc_imx_platform_flag imx6ul_usb_data = { + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_TURN_VBUS_EARLY_ON | + CI_HDRC_DISABLE_DEVICE_STREAMING, +}; + +static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = { + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, +}; + +static const struct ci_hdrc_imx_platform_flag imx7ulp_usb_data = { + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_PMQOS, +}; + +static const struct of_device_id ci_hdrc_imx_dt_ids[] = { + { .compatible = "fsl,imx23-usb", .data = &imx23_usb_data}, + { .compatible = "fsl,imx28-usb", .data = &imx28_usb_data}, + { .compatible = "fsl,imx27-usb", .data = &imx27_usb_data}, + { .compatible = "fsl,imx6q-usb", .data = &imx6q_usb_data}, + { .compatible = "fsl,imx6sl-usb", .data = &imx6sl_usb_data}, + { .compatible = "fsl,imx6sx-usb", .data = &imx6sx_usb_data}, + { .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data}, + { .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data}, + { .compatible = "fsl,imx7ulp-usb", .data = &imx7ulp_usb_data}, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); + +struct ci_hdrc_imx_data { + struct usb_phy *phy; + struct platform_device *ci_pdev; + struct clk *clk; + struct imx_usbmisc_data *usbmisc_data; + bool supports_runtime_pm; + bool override_phy_control; + bool in_lpm; + struct pinctrl *pinctrl; + struct pinctrl_state *pinctrl_hsic_active; + struct regulator *hsic_pad_regulator; + /* SoC before i.mx6 (except imx23/imx28) needs three clks */ + bool need_three_clks; + struct clk *clk_ipg; + struct clk *clk_ahb; + struct clk *clk_per; + /* --------------------------------- */ + struct pm_qos_request pm_qos_req; + const struct ci_hdrc_imx_platform_flag *plat_data; +}; + +/* Common functions shared by usbmisc drivers */ + +static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev) +{ + struct platform_device *misc_pdev; + struct device_node *np = dev->of_node; + struct of_phandle_args args; + struct imx_usbmisc_data *data; + int ret; + + /* + * In case the fsl,usbmisc property is not present this device doesn't + * need usbmisc. Return NULL (which is no error here) + */ + if (!of_get_property(np, "fsl,usbmisc", NULL)) + return NULL; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return ERR_PTR(-ENOMEM); + + ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells", + 0, &args); + if (ret) { + dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n", + ret); + return ERR_PTR(ret); + } + + data->index = args.args[0]; + + misc_pdev = of_find_device_by_node(args.np); + of_node_put(args.np); + + if (!misc_pdev) + return ERR_PTR(-EPROBE_DEFER); + + if (!platform_get_drvdata(misc_pdev)) { + put_device(&misc_pdev->dev); + return ERR_PTR(-EPROBE_DEFER); + } + data->dev = &misc_pdev->dev; + + /* + * Check the various over current related properties. If over current + * detection is disabled we're not interested in the polarity. + */ + if (of_find_property(np, "disable-over-current", NULL)) { + data->disable_oc = 1; + } else if (of_find_property(np, "over-current-active-high", NULL)) { + data->oc_pol_active_low = 0; + data->oc_pol_configured = 1; + } else if (of_find_property(np, "over-current-active-low", NULL)) { + data->oc_pol_active_low = 1; + data->oc_pol_configured = 1; + } else { + dev_warn(dev, "No over current polarity defined\n"); + } + + data->pwr_pol = of_property_read_bool(np, "power-active-high"); + data->evdo = of_property_read_bool(np, "external-vbus-divider"); + + if (of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) + data->ulpi = 1; + + of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control", + &data->emp_curr_control); + of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust", + &data->dc_vol_level_adjust); + + return data; +} + +/* End of common functions shared by usbmisc drivers*/ +static int imx_get_clks(struct device *dev) +{ + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + int ret = 0; + + data->clk_ipg = devm_clk_get(dev, "ipg"); + if (IS_ERR(data->clk_ipg)) { + /* If the platform only needs one clocks */ + data->clk = devm_clk_get(dev, NULL); + if (IS_ERR(data->clk)) { + ret = PTR_ERR(data->clk); + dev_err(dev, + "Failed to get clks, err=%ld,%ld\n", + PTR_ERR(data->clk), PTR_ERR(data->clk_ipg)); + return ret; + } + return ret; + } + + data->clk_ahb = devm_clk_get(dev, "ahb"); + if (IS_ERR(data->clk_ahb)) { + ret = PTR_ERR(data->clk_ahb); + dev_err(dev, + "Failed to get ahb clock, err=%d\n", ret); + return ret; + } + + data->clk_per = devm_clk_get(dev, "per"); + if (IS_ERR(data->clk_per)) { + ret = PTR_ERR(data->clk_per); + dev_err(dev, + "Failed to get per clock, err=%d\n", ret); + return ret; + } + + data->need_three_clks = true; + return ret; +} + +static int imx_prepare_enable_clks(struct device *dev) +{ + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + int ret = 0; + + if (data->need_three_clks) { + ret = clk_prepare_enable(data->clk_ipg); + if (ret) { + dev_err(dev, + "Failed to prepare/enable ipg clk, err=%d\n", + ret); + return ret; + } + + ret = clk_prepare_enable(data->clk_ahb); + if (ret) { + dev_err(dev, + "Failed to prepare/enable ahb clk, err=%d\n", + ret); + clk_disable_unprepare(data->clk_ipg); + return ret; + } + + ret = clk_prepare_enable(data->clk_per); + if (ret) { + dev_err(dev, + "Failed to prepare/enable per clk, err=%d\n", + ret); + clk_disable_unprepare(data->clk_ahb); + clk_disable_unprepare(data->clk_ipg); + return ret; + } + } else { + ret = clk_prepare_enable(data->clk); + if (ret) { + dev_err(dev, + "Failed to prepare/enable clk, err=%d\n", + ret); + return ret; + } + } + + return ret; +} + +static void imx_disable_unprepare_clks(struct device *dev) +{ + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + + if (data->need_three_clks) { + clk_disable_unprepare(data->clk_per); + clk_disable_unprepare(data->clk_ahb); + clk_disable_unprepare(data->clk_ipg); + } else { + clk_disable_unprepare(data->clk); + } +} + +static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event) +{ + struct device *dev = ci->dev->parent; + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + int ret = 0; + struct imx_usbmisc_data *mdata = data->usbmisc_data; + + switch (event) { + case CI_HDRC_IMX_HSIC_ACTIVE_EVENT: + if (data->pinctrl) { + ret = pinctrl_select_state(data->pinctrl, + data->pinctrl_hsic_active); + if (ret) + dev_err(dev, + "hsic_active select failed, err=%d\n", + ret); + } + break; + case CI_HDRC_IMX_HSIC_SUSPEND_EVENT: + ret = imx_usbmisc_hsic_set_connect(mdata); + if (ret) + dev_err(dev, + "hsic_set_connect failed, err=%d\n", ret); + break; + case CI_HDRC_CONTROLLER_VBUS_EVENT: + if (ci->vbus_active) + ret = imx_usbmisc_charger_detection(mdata, true); + else + ret = imx_usbmisc_charger_detection(mdata, false); + if (ci->usb_phy) + schedule_work(&ci->usb_phy->chg_work); + break; + default: + break; + } + + return ret; +} + +static int ci_hdrc_imx_probe(struct platform_device *pdev) +{ + struct ci_hdrc_imx_data *data; + struct ci_hdrc_platform_data pdata = { + .name = dev_name(&pdev->dev), + .capoffset = DEF_CAPOFFSET, + .notify_event = ci_hdrc_imx_notify_event, + }; + int ret; + const struct ci_hdrc_imx_platform_flag *imx_platform_flag; + struct device_node *np = pdev->dev.of_node; + struct device *dev = &pdev->dev; + + imx_platform_flag = of_device_get_match_data(&pdev->dev); + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->plat_data = imx_platform_flag; + pdata.flags |= imx_platform_flag->flags; + platform_set_drvdata(pdev, data); + data->usbmisc_data = usbmisc_get_init_data(dev); + if (IS_ERR(data->usbmisc_data)) + return PTR_ERR(data->usbmisc_data); + + if ((of_usb_get_phy_mode(dev->of_node) == USBPHY_INTERFACE_MODE_HSIC) + && data->usbmisc_data) { + pdata.flags |= CI_HDRC_IMX_IS_HSIC; + data->usbmisc_data->hsic = 1; + data->pinctrl = devm_pinctrl_get(dev); + if (PTR_ERR(data->pinctrl) == -ENODEV) + data->pinctrl = NULL; + else if (IS_ERR(data->pinctrl)) + return dev_err_probe(dev, PTR_ERR(data->pinctrl), + "pinctrl get failed\n"); + + data->hsic_pad_regulator = + devm_regulator_get_optional(dev, "hsic"); + if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) { + /* no pad regulator is needed */ + data->hsic_pad_regulator = NULL; + } else if (IS_ERR(data->hsic_pad_regulator)) + return dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator), + "Get HSIC pad regulator error\n"); + + if (data->hsic_pad_regulator) { + ret = regulator_enable(data->hsic_pad_regulator); + if (ret) { + dev_err(dev, + "Failed to enable HSIC pad regulator\n"); + return ret; + } + } + } + + /* HSIC pinctrl handling */ + if (data->pinctrl) { + struct pinctrl_state *pinctrl_hsic_idle; + + pinctrl_hsic_idle = pinctrl_lookup_state(data->pinctrl, "idle"); + if (IS_ERR(pinctrl_hsic_idle)) { + dev_err(dev, + "pinctrl_hsic_idle lookup failed, err=%ld\n", + PTR_ERR(pinctrl_hsic_idle)); + return PTR_ERR(pinctrl_hsic_idle); + } + + ret = pinctrl_select_state(data->pinctrl, pinctrl_hsic_idle); + if (ret) { + dev_err(dev, "hsic_idle select failed, err=%d\n", ret); + return ret; + } + + data->pinctrl_hsic_active = pinctrl_lookup_state(data->pinctrl, + "active"); + if (IS_ERR(data->pinctrl_hsic_active)) { + dev_err(dev, + "pinctrl_hsic_active lookup failed, err=%ld\n", + PTR_ERR(data->pinctrl_hsic_active)); + return PTR_ERR(data->pinctrl_hsic_active); + } + } + + if (pdata.flags & CI_HDRC_PMQOS) + cpu_latency_qos_add_request(&data->pm_qos_req, 0); + + ret = imx_get_clks(dev); + if (ret) + goto disable_hsic_regulator; + + ret = imx_prepare_enable_clks(dev); + if (ret) + goto disable_hsic_regulator; + + data->phy = devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0); + if (IS_ERR(data->phy)) { + ret = PTR_ERR(data->phy); + if (ret != -ENODEV) + goto err_clk; + data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0); + if (IS_ERR(data->phy)) { + ret = PTR_ERR(data->phy); + if (ret == -ENODEV) + data->phy = NULL; + else + goto err_clk; + } + } + + pdata.usb_phy = data->phy; + if (data->usbmisc_data) + data->usbmisc_data->usb_phy = data->phy; + + if ((of_device_is_compatible(np, "fsl,imx53-usb") || + of_device_is_compatible(np, "fsl,imx51-usb")) && pdata.usb_phy && + of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) { + pdata.flags |= CI_HDRC_OVERRIDE_PHY_CONTROL; + data->override_phy_control = true; + usb_phy_init(pdata.usb_phy); + } + + if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) + data->supports_runtime_pm = true; + + ret = imx_usbmisc_init(data->usbmisc_data); + if (ret) { + dev_err(dev, "usbmisc init failed, ret=%d\n", ret); + goto err_clk; + } + + data->ci_pdev = ci_hdrc_add_device(dev, + pdev->resource, pdev->num_resources, + &pdata); + if (IS_ERR(data->ci_pdev)) { + ret = PTR_ERR(data->ci_pdev); + dev_err_probe(dev, ret, "ci_hdrc_add_device failed\n"); + goto err_clk; + } + + if (data->usbmisc_data) { + if (!IS_ERR(pdata.id_extcon.edev) || + of_property_read_bool(np, "usb-role-switch")) + data->usbmisc_data->ext_id = 1; + + if (!IS_ERR(pdata.vbus_extcon.edev) || + of_property_read_bool(np, "usb-role-switch")) + data->usbmisc_data->ext_vbus = 1; + + /* usbmisc needs to know dr mode to choose wakeup setting */ + data->usbmisc_data->available_role = + ci_hdrc_query_available_role(data->ci_pdev); + } + + ret = imx_usbmisc_init_post(data->usbmisc_data); + if (ret) { + dev_err(dev, "usbmisc post failed, ret=%d\n", ret); + goto disable_device; + } + + if (data->supports_runtime_pm) { + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + } + + device_set_wakeup_capable(dev, true); + + return 0; + +disable_device: + ci_hdrc_remove_device(data->ci_pdev); +err_clk: + imx_disable_unprepare_clks(dev); +disable_hsic_regulator: + if (data->hsic_pad_regulator) + /* don't overwrite original ret (cf. EPROBE_DEFER) */ + regulator_disable(data->hsic_pad_regulator); + if (pdata.flags & CI_HDRC_PMQOS) + cpu_latency_qos_remove_request(&data->pm_qos_req); + data->ci_pdev = NULL; + return ret; +} + +static int ci_hdrc_imx_remove(struct platform_device *pdev) +{ + struct ci_hdrc_imx_data *data = platform_get_drvdata(pdev); + + if (data->supports_runtime_pm) { + pm_runtime_get_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); + } + if (data->ci_pdev) + ci_hdrc_remove_device(data->ci_pdev); + if (data->override_phy_control) + usb_phy_shutdown(data->phy); + if (data->ci_pdev) { + imx_disable_unprepare_clks(&pdev->dev); + if (data->plat_data->flags & CI_HDRC_PMQOS) + cpu_latency_qos_remove_request(&data->pm_qos_req); + if (data->hsic_pad_regulator) + regulator_disable(data->hsic_pad_regulator); + } + + return 0; +} + +static void ci_hdrc_imx_shutdown(struct platform_device *pdev) +{ + ci_hdrc_imx_remove(pdev); +} + +static int __maybe_unused imx_controller_suspend(struct device *dev, + pm_message_t msg) +{ + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + int ret = 0; + + dev_dbg(dev, "at %s\n", __func__); + + ret = imx_usbmisc_suspend(data->usbmisc_data, + PMSG_IS_AUTO(msg) || device_may_wakeup(dev)); + if (ret) { + dev_err(dev, + "usbmisc suspend failed, ret=%d\n", ret); + return ret; + } + + imx_disable_unprepare_clks(dev); + if (data->plat_data->flags & CI_HDRC_PMQOS) + cpu_latency_qos_remove_request(&data->pm_qos_req); + + data->in_lpm = true; + + return 0; +} + +static int __maybe_unused imx_controller_resume(struct device *dev, + pm_message_t msg) +{ + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + int ret = 0; + + dev_dbg(dev, "at %s\n", __func__); + + if (!data->in_lpm) { + WARN_ON(1); + return 0; + } + + if (data->plat_data->flags & CI_HDRC_PMQOS) + cpu_latency_qos_add_request(&data->pm_qos_req, 0); + + ret = imx_prepare_enable_clks(dev); + if (ret) + return ret; + + data->in_lpm = false; + + ret = imx_usbmisc_resume(data->usbmisc_data, + PMSG_IS_AUTO(msg) || device_may_wakeup(dev)); + if (ret) { + dev_err(dev, "usbmisc resume failed, ret=%d\n", ret); + goto clk_disable; + } + + return 0; + +clk_disable: + imx_disable_unprepare_clks(dev); + return ret; +} + +static int __maybe_unused ci_hdrc_imx_suspend(struct device *dev) +{ + int ret; + + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + + if (data->in_lpm) + /* The core's suspend doesn't run */ + return 0; + + ret = imx_controller_suspend(dev, PMSG_SUSPEND); + if (ret) + return ret; + + pinctrl_pm_select_sleep_state(dev); + return ret; +} + +static int __maybe_unused ci_hdrc_imx_resume(struct device *dev) +{ + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + int ret; + + pinctrl_pm_select_default_state(dev); + ret = imx_controller_resume(dev, PMSG_RESUME); + if (!ret && data->supports_runtime_pm) { + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + } + + return ret; +} + +static int __maybe_unused ci_hdrc_imx_runtime_suspend(struct device *dev) +{ + struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); + + if (data->in_lpm) { + WARN_ON(1); + return 0; + } + + return imx_controller_suspend(dev, PMSG_AUTO_SUSPEND); +} + +static int __maybe_unused ci_hdrc_imx_runtime_resume(struct device *dev) +{ + return imx_controller_resume(dev, PMSG_AUTO_RESUME); +} + +static const struct dev_pm_ops ci_hdrc_imx_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume) + SET_RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend, + ci_hdrc_imx_runtime_resume, NULL) +}; +static struct platform_driver ci_hdrc_imx_driver = { + .probe = ci_hdrc_imx_probe, + .remove = ci_hdrc_imx_remove, + .shutdown = ci_hdrc_imx_shutdown, + .driver = { + .name = "imx_usb", + .of_match_table = ci_hdrc_imx_dt_ids, + .pm = &ci_hdrc_imx_pm_ops, + }, +}; + +module_platform_driver(ci_hdrc_imx_driver); + +MODULE_ALIAS("platform:imx-usb"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("CI HDRC i.MX USB binding"); +MODULE_AUTHOR("Marek Vasut "); +MODULE_AUTHOR("Richard Zhao "); -- cgit v1.2.3