// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2017, The Linux Foundation. All rights reserved. */ #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/kernel.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/reset.h> #include <linux/slab.h> #include <linux/usb/typec.h> #include <linux/usb/typec_mux.h> #include "phy-qcom-qmp-common.h" #include "phy-qcom-qmp.h" #include "phy-qcom-qmp-pcs-misc-v3.h" #define PHY_INIT_COMPLETE_TIMEOUT … /* set of registers with offsets different per-PHY */ enum qphy_reg_layout { … }; static const unsigned int qmp_v3_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = …; static const unsigned int qmp_v3_usb3phy_regs_layout_qcm2290[QPHY_LAYOUT_SIZE] = …; static const struct qmp_phy_init_tbl msm8998_usb3_serdes_tbl[] = …; static const struct qmp_phy_init_tbl msm8998_usb3_tx_tbl[] = …; static const struct qmp_phy_init_tbl msm8998_usb3_rx_tbl[] = …; static const struct qmp_phy_init_tbl msm8998_usb3_pcs_tbl[] = …; static const struct qmp_phy_init_tbl qcm2290_usb3_serdes_tbl[] = …; static const struct qmp_phy_init_tbl qcm2290_usb3_tx_tbl[] = …; static const struct qmp_phy_init_tbl qcm2290_usb3_rx_tbl[] = …; /* the only difference is QSERDES_V3_RX_UCDR_PI_CONTROLS */ static const struct qmp_phy_init_tbl sdm660_usb3_rx_tbl[] = …; static const struct qmp_phy_init_tbl qcm2290_usb3_pcs_tbl[] = …; struct qmp_usbc_offsets { … }; /* struct qmp_phy_cfg - per-PHY initialization config */ struct qmp_phy_cfg { … }; struct qmp_usbc { … }; static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val) { … } static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val) { … } /* list of clocks required by phy */ static const char * const qmp_usbc_phy_clk_l[] = …; /* list of resets */ static const char * const usb3phy_legacy_reset_l[] = …; static const char * const usb3phy_reset_l[] = …; /* list of regulators */ static const char * const qmp_phy_vreg_l[] = …; static const struct qmp_usbc_offsets qmp_usbc_offsets_v3_qcm2290 = …; static const struct qmp_phy_cfg msm8998_usb3phy_cfg = …; static const struct qmp_phy_cfg qcm2290_usb3phy_cfg = …; static const struct qmp_phy_cfg sdm660_usb3phy_cfg = …; static int qmp_usbc_init(struct phy *phy) { … } static int qmp_usbc_exit(struct phy *phy) { … } static int qmp_usbc_power_on(struct phy *phy) { … } static int qmp_usbc_power_off(struct phy *phy) { … } static int qmp_usbc_enable(struct phy *phy) { … } static int qmp_usbc_disable(struct phy *phy) { … } static int qmp_usbc_set_mode(struct phy *phy, enum phy_mode mode, int submode) { … } static const struct phy_ops qmp_usbc_phy_ops = …; static void qmp_usbc_enable_autonomous_mode(struct qmp_usbc *qmp) { … } static void qmp_usbc_disable_autonomous_mode(struct qmp_usbc *qmp) { … } static int __maybe_unused qmp_usbc_runtime_suspend(struct device *dev) { … } static int __maybe_unused qmp_usbc_runtime_resume(struct device *dev) { … } static const struct dev_pm_ops qmp_usbc_pm_ops = …; static int qmp_usbc_vreg_init(struct qmp_usbc *qmp) { … } static int qmp_usbc_reset_init(struct qmp_usbc *qmp, const char *const *reset_list, int num_resets) { … } static int qmp_usbc_clk_init(struct qmp_usbc *qmp) { … } static void phy_clk_release_provider(void *res) { … } /* * Register a fixed rate pipe clock. * * The <s>_pipe_clksrc generated by PHY goes to the GCC that gate * controls it. The <s>_pipe_clk coming out of the GCC is requested * by the PHY driver for its operations. * We register the <s>_pipe_clksrc here. The gcc driver takes care * of assigning this <s>_pipe_clksrc as parent to <s>_pipe_clk. * Below picture shows this relationship. * * +---------------+ * | PHY block |<<---------------------------------------+ * | | | * | +-------+ | +-----+ | * I/P---^-->| PLL |---^--->pipe_clksrc--->| GCC |--->pipe_clk---+ * clk | +-------+ | +-----+ * +---------------+ */ static int phy_pipe_clk_register(struct qmp_usbc *qmp, struct device_node *np) { … } #if IS_ENABLED(CONFIG_TYPEC) static int qmp_usbc_typec_switch_set(struct typec_switch_dev *sw, enum typec_orientation orientation) { … } static void qmp_usbc_typec_unregister(void *data) { … } static int qmp_usbc_typec_switch_register(struct qmp_usbc *qmp) { … } #else static int qmp_usbc_typec_switch_register(struct qmp_usbc *qmp) { return 0; } #endif static int qmp_usbc_parse_dt_legacy(struct qmp_usbc *qmp, struct device_node *np) { … } static int qmp_usbc_parse_dt(struct qmp_usbc *qmp) { … } static int qmp_usbc_parse_vls_clamp(struct qmp_usbc *qmp) { … } static int qmp_usbc_probe(struct platform_device *pdev) { … } static const struct of_device_id qmp_usbc_of_match_table[] = …; MODULE_DEVICE_TABLE(of, qmp_usbc_of_match_table); static struct platform_driver qmp_usbc_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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