// SPDX-License-Identifier: GPL-2.0+ /* * Copyright: 2017-2018 Cadence Design Systems, Inc. */ #include <linux/bitfield.h> #include <linux/bitops.h> #include <linux/clk.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/reset.h> #include <linux/phy/phy.h> #include <linux/phy/phy-mipi-dphy.h> #define REG_WAKEUP_TIME_NS … #define DPHY_PLL_RATE_HZ … #define POLL_TIMEOUT_US … /* DPHY registers */ #define DPHY_PMA_CMN(reg) … #define DPHY_PMA_LCLK(reg) … #define DPHY_PMA_LDATA(lane, reg) … #define DPHY_PMA_RCLK(reg) … #define DPHY_PMA_RDATA(lane, reg) … #define DPHY_PCS(reg) … #define DPHY_CMN_SSM … #define DPHY_CMN_SSM_EN … #define DPHY_CMN_TX_MODE_EN … #define DPHY_CMN_PWM … #define DPHY_CMN_PWM_DIV(x) … #define DPHY_CMN_PWM_LOW(x) … #define DPHY_CMN_PWM_HIGH(x) … #define DPHY_CMN_FBDIV … #define DPHY_CMN_FBDIV_VAL(low, high) … #define DPHY_CMN_FBDIV_FROM_REG … #define DPHY_CMN_OPIPDIV … #define DPHY_CMN_IPDIV_FROM_REG … #define DPHY_CMN_IPDIV(x) … #define DPHY_CMN_OPDIV_FROM_REG … #define DPHY_CMN_OPDIV(x) … #define DPHY_BAND_CFG … #define DPHY_BAND_CFG_LEFT_BAND … #define DPHY_BAND_CFG_RIGHT_BAND … #define DPHY_PSM_CFG … #define DPHY_PSM_CFG_FROM_REG … #define DPHY_PSM_CLK_DIV(x) … #define DSI_HBP_FRAME_OVERHEAD … #define DSI_HSA_FRAME_OVERHEAD … #define DSI_HFP_FRAME_OVERHEAD … #define DSI_HSS_VSS_VSE_FRAME_OVERHEAD … #define DSI_BLANKING_FRAME_OVERHEAD … #define DSI_NULL_FRAME_OVERHEAD … #define DSI_EOT_PKT_SIZE … #define DPHY_TX_J721E_WIZ_PLL_CTRL … #define DPHY_TX_J721E_WIZ_STATUS … #define DPHY_TX_J721E_WIZ_RST_CTRL … #define DPHY_TX_J721E_WIZ_PSM_FREQ … #define DPHY_TX_J721E_WIZ_IPDIV … #define DPHY_TX_J721E_WIZ_OPDIV … #define DPHY_TX_J721E_WIZ_FBDIV … #define DPHY_TX_J721E_WIZ_LANE_RSTB … #define DPHY_TX_WIZ_PLL_LOCK … #define DPHY_TX_WIZ_O_CMN_READY … struct cdns_dphy_cfg { … }; enum cdns_dphy_clk_lane_cfg { … }; struct cdns_dphy; struct cdns_dphy_ops { … }; struct cdns_dphy { … }; /* Order of bands is important since the index is the band number. */ static const unsigned int tx_bands[] = …; static int cdns_dsi_get_dphy_pll_cfg(struct cdns_dphy *dphy, struct cdns_dphy_cfg *cfg, struct phy_configure_opts_mipi_dphy *opts, unsigned int *dsi_hfp_ext) { … } static int cdns_dphy_setup_psm(struct cdns_dphy *dphy) { … } static void cdns_dphy_set_clk_lane_cfg(struct cdns_dphy *dphy, enum cdns_dphy_clk_lane_cfg cfg) { … } static void cdns_dphy_set_pll_cfg(struct cdns_dphy *dphy, const struct cdns_dphy_cfg *cfg) { … } static unsigned long cdns_dphy_get_wakeup_time_ns(struct cdns_dphy *dphy) { … } static unsigned long cdns_dphy_ref_get_wakeup_time_ns(struct cdns_dphy *dphy) { … } static void cdns_dphy_ref_set_pll_cfg(struct cdns_dphy *dphy, const struct cdns_dphy_cfg *cfg) { … } static void cdns_dphy_ref_set_psm_div(struct cdns_dphy *dphy, u8 div) { … } static unsigned long cdns_dphy_j721e_get_wakeup_time_ns(struct cdns_dphy *dphy) { … } static void cdns_dphy_j721e_set_pll_cfg(struct cdns_dphy *dphy, const struct cdns_dphy_cfg *cfg) { … } static void cdns_dphy_j721e_set_psm_div(struct cdns_dphy *dphy, u8 div) { … } /* * This is the reference implementation of DPHY hooks. Specific integration of * this IP may have to re-implement some of them depending on how they decided * to wire things in the SoC. */ static const struct cdns_dphy_ops ref_dphy_ops = …; static const struct cdns_dphy_ops j721e_dphy_ops = …; static int cdns_dphy_config_from_opts(struct phy *phy, struct phy_configure_opts_mipi_dphy *opts, struct cdns_dphy_cfg *cfg) { … } static int cdns_dphy_tx_get_band_ctrl(unsigned long hs_clk_rate) { … } static int cdns_dphy_validate(struct phy *phy, enum phy_mode mode, int submode, union phy_configure_opts *opts) { … } static int cdns_dphy_configure(struct phy *phy, union phy_configure_opts *opts) { … } static int cdns_dphy_power_on(struct phy *phy) { … } static int cdns_dphy_power_off(struct phy *phy) { … } static const struct phy_ops cdns_dphy_ops = …; static int cdns_dphy_probe(struct platform_device *pdev) { … } static void cdns_dphy_remove(struct platform_device *pdev) { … } static const struct of_device_id cdns_dphy_of_match[] = …; MODULE_DEVICE_TABLE(of, cdns_dphy_of_match); static struct platform_driver cdns_dphy_platform_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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