// SPDX-License-Identifier: GPL-2.0 #include <linux/module.h> #include <linux/i2c.h> #include <linux/dmi.h> #include <linux/efi.h> #include <linux/pci.h> #include <linux/acpi.h> #include <linux/clk.h> #include <linux/delay.h> #include <media/v4l2-subdev.h> #include <linux/mfd/intel_soc_pmic.h> #include <linux/regulator/consumer.h> #include <linux/gpio/consumer.h> #include <linux/gpio.h> #include <linux/platform_device.h> #include "../../include/linux/atomisp_platform.h" #include "../../include/linux/atomisp_gmin_platform.h" #define MAX_SUBDEVS … enum clock_rate { … }; #define CLK_RATE_19_2MHZ … #define CLK_RATE_25_0MHZ … /* Valid clock number range from 0 to 5 */ #define MAX_CLK_COUNT … /* X-Powers AXP288 register set */ #define ALDO1_SEL_REG … #define ALDO1_CTRL3_REG … #define ALDO1_2P8V … #define ALDO1_CTRL3_SHIFT … #define ELDO_CTRL_REG … #define ELDO1_SEL_REG … #define ELDO1_1P6V … #define ELDO1_CTRL_SHIFT … #define ELDO2_SEL_REG … #define ELDO2_1P8V … #define ELDO2_CTRL_SHIFT … /* TI SND9039 PMIC register set */ #define LDO9_REG … #define LDO10_REG … #define LDO11_REG … #define LDO_2P8V_ON … #define LDO_2P8V_OFF … #define LDO_1P8V_ON … #define LDO_1P8V_OFF … /* CRYSTAL COVE PMIC register set */ #define CRYSTAL_BYT_1P8V_REG … #define CRYSTAL_BYT_2P8V_REG … #define CRYSTAL_CHT_1P8V_REG … #define CRYSTAL_CHT_2P8V_REG … #define CRYSTAL_ON … #define CRYSTAL_OFF … struct gmin_subdev { … }; static struct gmin_subdev gmin_subdevs[MAX_SUBDEVS]; /* ACPI HIDs for the PMICs that could be used by this driver */ #define PMIC_ACPI_AXP … #define PMIC_ACPI_TI … #define PMIC_ACPI_CRYSTALCOVE … #define PMIC_PLATFORM_TI … static enum { … } pmic_id; static const char *pmic_name[] = …; static DEFINE_MUTEX(gmin_regulator_mutex); static int gmin_v1p8_enable_count; static int gmin_v2p8_enable_count; /* The atomisp uses subdev==NULL for the end-of-list marker, so leave space. */ static struct intel_v4l2_subdev_table pdata_subdevs[MAX_SUBDEVS + 1]; static struct gmin_subdev *find_gmin_subdev(struct v4l2_subdev *subdev); const struct intel_v4l2_subdev_table *atomisp_platform_get_subdevs(void) { … } EXPORT_SYMBOL_GPL(…); int atomisp_register_i2c_module(struct v4l2_subdev *subdev, struct camera_sensor_platform_data *plat_data) { … } EXPORT_SYMBOL_GPL(…); int atomisp_gmin_remove_subdev(struct v4l2_subdev *sd) { … } EXPORT_SYMBOL_GPL(…); struct gmin_cfg_var { … }; static struct gmin_cfg_var ffrd8_vars[] = …; /* Cribbed from MCG defaults in the mt9m114 driver, not actually verified * vs. T100 hardware */ static struct gmin_cfg_var t100_vars[] = …; static struct gmin_cfg_var mrd7_vars[] = …; static struct gmin_cfg_var ecs7_vars[] = …; static struct gmin_cfg_var i8880_vars[] = …; /* * Surface 3 does not describe CsiPort/CsiLanes in both DSDT and EFI. */ static struct gmin_cfg_var surface3_vars[] = …; static struct gmin_cfg_var lenovo_ideapad_miix_310_vars[] = …; static const struct dmi_system_id gmin_vars[] = …; #define GMIN_CFG_VAR_EFI_GUID … static const guid_t atomisp_dsm_guid = …; #define CFG_VAR_NAME_MAX … #define GMIN_PMC_CLK_NAME … static char gmin_pmc_clk_name[GMIN_PMC_CLK_NAME]; static struct i2c_client *gmin_i2c_dev_exists(struct device *dev, char *name, struct i2c_client **client) { … } static int gmin_i2c_write(struct device *dev, u16 i2c_addr, u8 reg, u32 value, u32 mask) { … } static int atomisp_get_acpi_power(struct device *dev) { … } static u8 gmin_get_pmic_id_and_addr(struct device *dev) { … } static int gmin_detect_pmic(struct v4l2_subdev *subdev) { … } static int gmin_subdev_add(struct gmin_subdev *gs) { … } static struct gmin_subdev *find_gmin_subdev(struct v4l2_subdev *subdev) { … } static struct gmin_subdev *find_free_gmin_subdev_slot(void) { … } static int axp_regulator_set(struct device *dev, struct gmin_subdev *gs, int sel_reg, u8 setting, int ctrl_reg, int shift, bool on) { … } /* * Some boards contain a hw-bug where turning eldo2 back on after having turned * it off causes the CPLM3218 ambient-light-sensor on the image-sensor's I2C bus * to crash, hanging the bus. Do not turn eldo2 off on these systems. */ static const struct dmi_system_id axp_leave_eldo2_on_ids[] = …; static int axp_v1p8_on(struct device *dev, struct gmin_subdev *gs) { … } static int axp_v1p8_off(struct device *dev, struct gmin_subdev *gs) { … } static int gmin_gpio0_ctrl(struct v4l2_subdev *subdev, int on) { … } static int gmin_gpio1_ctrl(struct v4l2_subdev *subdev, int on) { … } static int gmin_v1p2_ctrl(struct v4l2_subdev *subdev, int on) { … } static int gmin_v1p8_ctrl(struct v4l2_subdev *subdev, int on) { … } static int gmin_v2p8_ctrl(struct v4l2_subdev *subdev, int on) { … } static int gmin_acpi_pm_ctrl(struct v4l2_subdev *subdev, int on) { … } static int gmin_flisclk_ctrl(struct v4l2_subdev *subdev, int on) { … } static int camera_sensor_csi_alloc(struct v4l2_subdev *sd, u32 port, u32 lanes, u32 format, u32 bayer_order) { … } static void camera_sensor_csi_free(struct v4l2_subdev *sd) { … } static int gmin_csi_cfg(struct v4l2_subdev *sd, int flag) { … } int atomisp_register_sensor_no_gmin(struct v4l2_subdev *subdev, u32 lanes, enum atomisp_input_format format, enum atomisp_bayer_order bayer_order) { … } EXPORT_SYMBOL_GPL(…); void atomisp_unregister_subdev(struct v4l2_subdev *subdev) { … } EXPORT_SYMBOL_GPL(…); static struct camera_sensor_platform_data pmic_gmin_plat = …; static struct camera_sensor_platform_data acpi_gmin_plat = …; struct camera_sensor_platform_data * gmin_camera_platform_data(struct v4l2_subdev *subdev, enum atomisp_input_format csi_format, enum atomisp_bayer_order csi_bayer) { … } EXPORT_SYMBOL_GPL(…); static int gmin_get_hardcoded_var(struct device *dev, struct gmin_cfg_var *varlist, const char *var8, char *out, size_t *out_len) { … } static int gmin_get_config_dsm_var(struct device *dev, const char *var, char *out, size_t *out_len) { … } /* Retrieves a device-specific configuration variable. The dev * argument should be a device with an ACPI companion, as all * configuration is based on firmware ID. */ static int gmin_get_config_var(struct device *maindev, bool is_gmin, const char *var, char *out, size_t *out_len) { … } int gmin_get_var_int(struct device *dev, bool is_gmin, const char *var, int def) { … } EXPORT_SYMBOL_GPL(…); /* PCI quirk: The BYT ISP advertises PCI runtime PM but it doesn't * work. Disable so the kernel framework doesn't hang the device * trying. The driver itself does direct calls to the PUNIT to manage * ISP power. */ static void isp_pm_cap_fixup(struct pci_dev *pdev) { … } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0f38, isp_pm_cap_fixup); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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