// 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/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_address.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <linux/regulator/consumer.h> #include <linux/reset.h> #include <linux/slab.h> #include "phy-qcom-qmp.h" #include "phy-qcom-qmp-pcs-misc-v3.h" #include "phy-qcom-qmp-pcs-usb-v4.h" #include "phy-qcom-qmp-pcs-usb-v5.h" #include "phy-qcom-qmp-dp-com-v3.h" /* QPHY_V3_DP_COM_RESET_OVRD_CTRL register bits */ /* DP PHY soft reset */ #define SW_DPPHY_RESET … /* mux to select DP PHY reset control, 0:HW control, 1: software reset */ #define SW_DPPHY_RESET_MUX … /* USB3 PHY soft reset */ #define SW_USB3PHY_RESET … /* mux to select USB3 PHY reset control, 0:HW control, 1: software reset */ #define SW_USB3PHY_RESET_MUX … /* QPHY_V3_DP_COM_PHY_MODE_CTRL register bits */ #define USB3_MODE … #define DP_MODE … #define PHY_INIT_COMPLETE_TIMEOUT … struct qmp_phy_init_tbl { … }; #define QMP_PHY_INIT_CFG(o, v) … #define QMP_PHY_INIT_CFG_LANE(o, v, l) … /* 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_v4_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = …; static const unsigned int qmp_v5_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = …; static const struct qmp_phy_init_tbl qmp_v3_usb3_serdes_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v3_usb3_tx_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v3_usb3_rx_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v3_usb3_pcs_tbl[] = …; static const struct qmp_phy_init_tbl sm8150_usb3_serdes_tbl[] = …; static const struct qmp_phy_init_tbl sm8150_usb3_tx_tbl[] = …; static const struct qmp_phy_init_tbl sm8150_usb3_rx_tbl[] = …; static const struct qmp_phy_init_tbl sm8150_usb3_pcs_tbl[] = …; static const struct qmp_phy_init_tbl sm8150_usb3_pcs_usb_tbl[] = …; static const struct qmp_phy_init_tbl sm8250_usb3_tx_tbl[] = …; static const struct qmp_phy_init_tbl sm8250_usb3_rx_tbl[] = …; static const struct qmp_phy_init_tbl sm8250_usb3_pcs_tbl[] = …; static const struct qmp_phy_init_tbl sm8250_usb3_pcs_usb_tbl[] = …; static const struct qmp_phy_init_tbl sm8350_usb3_tx_tbl[] = …; static const struct qmp_phy_init_tbl sm8350_usb3_rx_tbl[] = …; static const struct qmp_phy_init_tbl sm8350_usb3_pcs_tbl[] = …; static const struct qmp_phy_init_tbl sm8350_usb3_pcs_usb_tbl[] = …; struct qmp_usb_legacy_offsets { … }; /* struct qmp_phy_cfg - per-PHY initialization config */ struct qmp_phy_cfg { … }; struct qmp_usb { … }; 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_v3_phy_clk_l[] = …; static const char * const qmp_v4_ref_phy_clk_l[] = …; /* the primary usb3 phy on sm8250 doesn't have a ref clock */ static const char * const qmp_v4_sm8250_usbphy_clk_l[] = …; /* list of resets */ static const char * const msm8996_usb3phy_reset_l[] = …; static const char * const sc7180_usb3phy_reset_l[] = …; /* list of regulators */ static const char * const qmp_phy_vreg_l[] = …; static const struct qmp_phy_cfg qmp_v3_usb3phy_cfg = …; static const struct qmp_phy_cfg sc7180_usb3phy_cfg = …; static const struct qmp_phy_cfg sm8150_usb3phy_cfg = …; static const struct qmp_phy_cfg sm8250_usb3phy_cfg = …; static const struct qmp_phy_cfg sm8350_usb3phy_cfg = …; static void qmp_usb_legacy_configure_lane(void __iomem *base, const struct qmp_phy_init_tbl tbl[], int num, u8 lane_mask) { … } static void qmp_usb_legacy_configure(void __iomem *base, const struct qmp_phy_init_tbl tbl[], int num) { … } static int qmp_usb_legacy_serdes_init(struct qmp_usb *qmp) { … } static void qmp_usb_legacy_init_dp_com(struct phy *phy) { … } static int qmp_usb_legacy_init(struct phy *phy) { … } static int qmp_usb_legacy_exit(struct phy *phy) { … } static int qmp_usb_legacy_power_on(struct phy *phy) { … } static int qmp_usb_legacy_power_off(struct phy *phy) { … } static int qmp_usb_legacy_enable(struct phy *phy) { … } static int qmp_usb_legacy_disable(struct phy *phy) { … } static int qmp_usb_legacy_set_mode(struct phy *phy, enum phy_mode mode, int submode) { … } static const struct phy_ops qmp_usb_legacy_phy_ops = …; static void qmp_usb_legacy_enable_autonomous_mode(struct qmp_usb *qmp) { … } static void qmp_usb_legacy_disable_autonomous_mode(struct qmp_usb *qmp) { … } static int __maybe_unused qmp_usb_legacy_runtime_suspend(struct device *dev) { … } static int __maybe_unused qmp_usb_legacy_runtime_resume(struct device *dev) { … } static const struct dev_pm_ops qmp_usb_legacy_pm_ops = …; static int qmp_usb_legacy_vreg_init(struct qmp_usb *qmp) { … } static int qmp_usb_legacy_reset_init(struct qmp_usb *qmp) { … } static int qmp_usb_legacy_clk_init(struct qmp_usb *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_usb *qmp, struct device_node *np) { … } static int qmp_usb_legacy_parse_dt_legacy(struct qmp_usb *qmp, struct device_node *np) { … } static int qmp_usb_legacy_parse_dt(struct qmp_usb *qmp) { … } static int qmp_usb_legacy_probe(struct platform_device *pdev) { … } static const struct of_device_id qmp_usb_legacy_of_match_table[] = …; MODULE_DEVICE_TABLE(of, qmp_usb_legacy_of_match_table); static struct platform_driver qmp_usb_legacy_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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