// SPDX-License-Identifier: GPL-2.0-only /* * Copyright © 2006-2011 Intel Corporation * * Authors: * Eric Anholt <[email protected]> * Dave Airlie <[email protected]> * Jesse Barnes <[email protected]> */ #include <linux/dmi.h> #include <linux/i2c.h> #include <linux/pm_runtime.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_simple_kms_helper.h> #include "cdv_device.h" #include "intel_bios.h" #include "power.h" #include "psb_drv.h" #include "psb_intel_drv.h" #include "psb_intel_reg.h" /* * LVDS I2C backlight control macros */ #define BRIGHTNESS_MAX_LEVEL … #define BRIGHTNESS_MASK … #define BLC_I2C_TYPE … #define BLC_PWM_TYPT … #define BLC_POLARITY_NORMAL … #define BLC_POLARITY_INVERSE … #define PSB_BLC_MAX_PWM_REG_FREQ … #define PSB_BLC_MIN_PWM_REG_FREQ … #define PSB_BLC_PWM_PRECISION_FACTOR … #define PSB_BACKLIGHT_PWM_CTL_SHIFT … #define PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR … struct cdv_intel_lvds_priv { … }; /* * Returns the maximum level of the backlight duty cycle field. */ static u32 cdv_intel_lvds_get_max_backlight(struct drm_device *dev) { … } /* * Sets the backlight level. * * level backlight level, from 0 to cdv_intel_lvds_get_max_backlight(). */ static void cdv_intel_lvds_set_backlight(struct drm_device *dev, int level) { … } /* * Sets the power state for the panel. */ static void cdv_intel_lvds_set_power(struct drm_device *dev, struct drm_encoder *encoder, bool on) { … } static void cdv_intel_lvds_encoder_dpms(struct drm_encoder *encoder, int mode) { … } static void cdv_intel_lvds_save(struct drm_connector *connector) { … } static void cdv_intel_lvds_restore(struct drm_connector *connector) { … } static enum drm_mode_status cdv_intel_lvds_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { … } static bool cdv_intel_lvds_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { … } static void cdv_intel_lvds_prepare(struct drm_encoder *encoder) { … } static void cdv_intel_lvds_commit(struct drm_encoder *encoder) { … } static void cdv_intel_lvds_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { … } /* * Return the list of DDC modes if available, or the BIOS fixed mode otherwise. */ static int cdv_intel_lvds_get_modes(struct drm_connector *connector) { … } static void cdv_intel_lvds_destroy(struct drm_connector *connector) { … } static int cdv_intel_lvds_set_property(struct drm_connector *connector, struct drm_property *property, uint64_t value) { … } static const struct drm_encoder_helper_funcs cdv_intel_lvds_helper_funcs = …; static const struct drm_connector_helper_funcs cdv_intel_lvds_connector_helper_funcs = …; static const struct drm_connector_funcs cdv_intel_lvds_connector_funcs = …; /* * Enumerate the child dev array parsed from VBT to check whether * the LVDS is present. * If it is present, return 1. * If it is not present, return false. * If no child dev is parsed from VBT, it assumes that the LVDS is present. */ static bool lvds_is_present_in_vbt(struct drm_device *dev, u8 *i2c_pin) { … } /** * cdv_intel_lvds_init - setup LVDS connectors on this device * @dev: drm device * @mode_dev: PSB mode device * * Create the connector, register the LVDS DDC bus, and try to figure out what * modes we can display on the LVDS panel (if present). */ void cdv_intel_lvds_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev) { … }
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