// 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_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 <linux/usb/typec.h> #include <linux/usb/typec_mux.h> #include <drm/bridge/aux-bridge.h> #include <dt-bindings/phy/phy-qcom-qmp.h> #include "phy-qcom-qmp-common.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-pcs-usb-v6.h" #include "phy-qcom-qmp-dp-com-v3.h" #include "phy-qcom-qmp-dp-phy.h" #include "phy-qcom-qmp-dp-phy-v3.h" #include "phy-qcom-qmp-dp-phy-v4.h" #include "phy-qcom-qmp-dp-phy-v5.h" #include "phy-qcom-qmp-dp-phy-v6.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 … /* QPHY_V3_DP_COM_TYPEC_CTRL register bits */ #define SW_PORTSELECT_VAL … #define SW_PORTSELECT_MUX … #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_v45_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = …; static const unsigned int qmp_v5_5nm_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = …; static const unsigned int qmp_v6_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = …; static const unsigned int qmp_v6_n4_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_dp_serdes_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v3_dp_serdes_tbl_rbr[] = …; static const struct qmp_phy_init_tbl qmp_v3_dp_serdes_tbl_hbr[] = …; static const struct qmp_phy_init_tbl qmp_v3_dp_serdes_tbl_hbr2[] = …; static const struct qmp_phy_init_tbl qmp_v3_dp_serdes_tbl_hbr3[] = …; static const struct qmp_phy_init_tbl qmp_v3_dp_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 sm6350_usb3_rx_tbl[] = …; static const struct qmp_phy_init_tbl sm6350_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[] = …; static const struct qmp_phy_init_tbl sm8550_usb3_serdes_tbl[] = …; static const struct qmp_phy_init_tbl sm8550_usb3_tx_tbl[] = …; static const struct qmp_phy_init_tbl sm8550_usb3_rx_tbl[] = …; static const struct qmp_phy_init_tbl sm8550_usb3_pcs_tbl[] = …; static const struct qmp_phy_init_tbl sm8550_usb3_pcs_usb_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_rbr[] = …; static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr[] = …; static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr2[] = …; static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr3[] = …; static const struct qmp_phy_init_tbl qmp_v4_dp_tx_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v5_dp_serdes_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v5_dp_tx_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v5_5nm_dp_tx_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v6_dp_serdes_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v6_n4_dp_serdes_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v6_dp_tx_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v6_n4_dp_tx_tbl[] = …; static const struct qmp_phy_init_tbl qmp_v6_dp_serdes_tbl_rbr[] = …; static const struct qmp_phy_init_tbl qmp_v6_dp_serdes_tbl_hbr[] = …; static const struct qmp_phy_init_tbl qmp_v6_dp_serdes_tbl_hbr2[] = …; static const struct qmp_phy_init_tbl qmp_v6_dp_serdes_tbl_hbr3[] = …; static const struct qmp_phy_init_tbl qmp_v6_n4_dp_serdes_tbl_rbr[] = …; static const struct qmp_phy_init_tbl qmp_v6_n4_dp_serdes_tbl_hbr[] = …; static const struct qmp_phy_init_tbl qmp_v6_n4_dp_serdes_tbl_hbr2[] = …; static const struct qmp_phy_init_tbl qmp_v6_n4_dp_serdes_tbl_hbr3[] = …; static const struct qmp_phy_init_tbl sc8280xp_usb43dp_serdes_tbl[] = …; static const struct qmp_phy_init_tbl sc8280xp_usb43dp_tx_tbl[] = …; static const struct qmp_phy_init_tbl sc8280xp_usb43dp_rx_tbl[] = …; static const struct qmp_phy_init_tbl sc8280xp_usb43dp_pcs_tbl[] = …; static const struct qmp_phy_init_tbl x1e80100_usb43dp_serdes_tbl[] = …; static const struct qmp_phy_init_tbl x1e80100_usb43dp_tx_tbl[] = …; static const struct qmp_phy_init_tbl x1e80100_usb43dp_rx_tbl[] = …; static const struct qmp_phy_init_tbl x1e80100_usb43dp_pcs_tbl[] = …; static const struct qmp_phy_init_tbl x1e80100_usb43dp_pcs_usb_tbl[] = …; /* list of regulators */ struct qmp_regulator_data { … }; static struct qmp_regulator_data qmp_phy_vreg_l[] = …; static const u8 qmp_dp_v3_pre_emphasis_hbr3_hbr2[4][4] = …; static const u8 qmp_dp_v3_voltage_swing_hbr3_hbr2[4][4] = …; static const u8 qmp_dp_v3_pre_emphasis_hbr_rbr[4][4] = …; static const u8 qmp_dp_v3_voltage_swing_hbr_rbr[4][4] = …; static const u8 qmp_dp_v4_pre_emphasis_hbr3_hbr2[4][4] = …; static const u8 qmp_dp_v4_pre_emphasis_hbr_rbr[4][4] = …; static const u8 qmp_dp_v4_voltage_swing_hbr_rbr[4][4] = …; static const u8 qmp_dp_v5_pre_emphasis_hbr3_hbr2[4][4] = …; static const u8 qmp_dp_v5_voltage_swing_hbr3_hbr2[4][4] = …; static const u8 qmp_dp_v5_pre_emphasis_hbr_rbr[4][4] = …; static const u8 qmp_dp_v5_voltage_swing_hbr_rbr[4][4] = …; static const u8 qmp_dp_v6_voltage_swing_hbr_rbr[4][4] = …; static const u8 qmp_dp_v6_pre_emphasis_hbr_rbr[4][4] = …; struct qmp_combo; struct qmp_combo_offsets { … }; struct qmp_phy_cfg { … }; struct qmp_combo { … }; static void qmp_v3_dp_aux_init(struct qmp_combo *qmp); static void qmp_v3_configure_dp_tx(struct qmp_combo *qmp); static int qmp_v3_configure_dp_phy(struct qmp_combo *qmp); static int qmp_v3_calibrate_dp_phy(struct qmp_combo *qmp); static void qmp_v4_dp_aux_init(struct qmp_combo *qmp); static void qmp_v4_configure_dp_tx(struct qmp_combo *qmp); static int qmp_v4_configure_dp_phy(struct qmp_combo *qmp); static int qmp_v4_calibrate_dp_phy(struct qmp_combo *qmp); 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_combo_phy_clk_l[] = …; /* list of resets */ static const char * const msm8996_usb3phy_reset_l[] = …; static const char * const sc7180_usb3phy_reset_l[] = …; static const struct qmp_combo_offsets qmp_combo_offsets_v3 = …; static const struct qmp_combo_offsets qmp_combo_offsets_v5 = …; static const struct qmp_phy_cfg sc7180_usb3dpphy_cfg = …; static const struct qmp_phy_cfg sdm845_usb3dpphy_cfg = …; static const struct qmp_phy_cfg sc8180x_usb3dpphy_cfg = …; static const struct qmp_phy_cfg sc8280xp_usb43dpphy_cfg = …; static const struct qmp_phy_cfg x1e80100_usb3dpphy_cfg = …; static const struct qmp_phy_cfg sm6350_usb3dpphy_cfg = …; static const struct qmp_phy_cfg sm8250_usb3dpphy_cfg = …; static const struct qmp_phy_cfg sm8350_usb3dpphy_cfg = …; static const struct qmp_phy_cfg sm8550_usb3dpphy_cfg = …; static const struct qmp_phy_cfg sm8650_usb3dpphy_cfg = …; static int qmp_combo_dp_serdes_init(struct qmp_combo *qmp) { … } static void qmp_v3_dp_aux_init(struct qmp_combo *qmp) { … } static int qmp_combo_configure_dp_swing(struct qmp_combo *qmp) { … } static void qmp_v3_configure_dp_tx(struct qmp_combo *qmp) { … } static bool qmp_combo_configure_dp_mode(struct qmp_combo *qmp) { … } static int qmp_combo_configure_dp_clocks(struct qmp_combo *qmp) { … } static int qmp_v3_configure_dp_phy(struct qmp_combo *qmp) { … } /* * We need to calibrate the aux setting here as many times * as the caller tries */ static int qmp_v3_calibrate_dp_phy(struct qmp_combo *qmp) { … } static void qmp_v4_dp_aux_init(struct qmp_combo *qmp) { … } static void qmp_v4_configure_dp_tx(struct qmp_combo *qmp) { … } static int qmp_v456_configure_dp_phy(struct qmp_combo *qmp) { … } static int qmp_v4_configure_dp_phy(struct qmp_combo *qmp) { … } /* * We need to calibrate the aux setting here as many times * as the caller tries */ static int qmp_v4_calibrate_dp_phy(struct qmp_combo *qmp) { … } static int qmp_combo_dp_configure(struct phy *phy, union phy_configure_opts *opts) { … } static int qmp_combo_dp_calibrate(struct phy *phy) { … } static int qmp_combo_com_init(struct qmp_combo *qmp, bool force) { … } static int qmp_combo_com_exit(struct qmp_combo *qmp, bool force) { … } static int qmp_combo_dp_init(struct phy *phy) { … } static int qmp_combo_dp_exit(struct phy *phy) { … } static int qmp_combo_dp_power_on(struct phy *phy) { … } static int qmp_combo_dp_power_off(struct phy *phy) { … } static int qmp_combo_usb_power_on(struct phy *phy) { … } static int qmp_combo_usb_power_off(struct phy *phy) { … } static int qmp_combo_usb_init(struct phy *phy) { … } static int qmp_combo_usb_exit(struct phy *phy) { … } static int qmp_combo_usb_set_mode(struct phy *phy, enum phy_mode mode, int submode) { … } static const struct phy_ops qmp_combo_usb_phy_ops = …; static const struct phy_ops qmp_combo_dp_phy_ops = …; static void qmp_combo_enable_autonomous_mode(struct qmp_combo *qmp) { … } static void qmp_combo_disable_autonomous_mode(struct qmp_combo *qmp) { … } static int __maybe_unused qmp_combo_runtime_suspend(struct device *dev) { … } static int __maybe_unused qmp_combo_runtime_resume(struct device *dev) { … } static const struct dev_pm_ops qmp_combo_pm_ops = …; static int qmp_combo_vreg_init(struct qmp_combo *qmp) { … } static int qmp_combo_reset_init(struct qmp_combo *qmp) { … } static int qmp_combo_clk_init(struct qmp_combo *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_combo *qmp, struct device_node *np) { … } /* * Display Port PLL driver block diagram for branch clocks * * +------------------------------+ * | DP_VCO_CLK | * | | * | +-------------------+ | * | | (DP PLL/VCO) | | * | +---------+---------+ | * | v | * | +----------+-----------+ | * | | hsclk_divsel_clk_src | | * | +----------+-----------+ | * +------------------------------+ * | * +---------<---------v------------>----------+ * | | * +--------v----------------+ | * | dp_phy_pll_link_clk | | * | link_clk | | * +--------+----------------+ | * | | * | | * v v * Input to DISPCC block | * for link clk, crypto clk | * and interface clock | * | * | * +--------<------------+-----------------+---<---+ * | | | * +----v---------+ +--------v-----+ +--------v------+ * | vco_divided | | vco_divided | | vco_divided | * | _clk_src | | _clk_src | | _clk_src | * | | | | | | * |divsel_six | | divsel_two | | divsel_four | * +-------+------+ +-----+--------+ +--------+------+ * | | | * v---->----------v-------------<------v * | * +----------+-----------------+ * | dp_phy_pll_vco_div_clk | * +---------+------------------+ * | * v * Input to DISPCC block * for DP pixel clock * */ static int qmp_dp_pixel_clk_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { … } static unsigned long qmp_dp_pixel_clk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { … } static const struct clk_ops qmp_dp_pixel_clk_ops = …; static int qmp_dp_link_clk_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { … } static unsigned long qmp_dp_link_clk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { … } static const struct clk_ops qmp_dp_link_clk_ops = …; static struct clk_hw *qmp_dp_clks_hw_get(struct of_phandle_args *clkspec, void *data) { … } static int phy_dp_clks_register(struct qmp_combo *qmp, struct device_node *np) { … } static struct clk_hw *qmp_combo_clk_hw_get(struct of_phandle_args *clkspec, void *data) { … } static int qmp_combo_register_clocks(struct qmp_combo *qmp, struct device_node *usb_np, struct device_node *dp_np) { … } #if IS_ENABLED(CONFIG_TYPEC) static int qmp_combo_typec_switch_set(struct typec_switch_dev *sw, enum typec_orientation orientation) { … } static void qmp_combo_typec_unregister(void *data) { … } static int qmp_combo_typec_switch_register(struct qmp_combo *qmp) { … } #else static int qmp_combo_typec_switch_register(struct qmp_combo *qmp) { return 0; } #endif static int qmp_combo_parse_dt_lecacy_dp(struct qmp_combo *qmp, struct device_node *np) { … } static int qmp_combo_parse_dt_lecacy_usb(struct qmp_combo *qmp, struct device_node *np) { … } static int qmp_combo_parse_dt_legacy(struct qmp_combo *qmp, struct device_node *usb_np, struct device_node *dp_np) { … } static int qmp_combo_parse_dt(struct qmp_combo *qmp) { … } static struct phy *qmp_combo_phy_xlate(struct device *dev, const struct of_phandle_args *args) { … } static int qmp_combo_probe(struct platform_device *pdev) { … } static const struct of_device_id qmp_combo_of_match_table[] = …; MODULE_DEVICE_TABLE(of, qmp_combo_of_match_table); static struct platform_driver qmp_combo_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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