// SPDX-License-Identifier: GPL-2.0-only /* * Copyright © 2006-2007 Intel Corporation * * Authors: * Eric Anholt <[email protected]> * Dave Airlie <[email protected]> * Jesse Barnes <[email protected]> */ #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 "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 psb_intel_lvds_priv { … }; /* * Returns the maximum level of the backlight duty cycle field. */ static u32 psb_intel_lvds_get_max_backlight(struct drm_device *dev) { … } /* * Set LVDS backlight level by I2C command * * FIXME: at some point we need to both track this for PM and also * disable runtime pm on MRST if the brightness is nil (ie blanked) */ static int psb_lvds_i2c_set_brightness(struct drm_device *dev, unsigned int level) { … } static int psb_lvds_pwm_set_brightness(struct drm_device *dev, int level) { … } /* * Set LVDS backlight level either by I2C or PWM */ void psb_intel_lvds_set_brightness(struct drm_device *dev, int level) { … } /* * Sets the backlight level. * * level: backlight level, from 0 to psb_intel_lvds_get_max_backlight(). */ static void psb_intel_lvds_set_backlight(struct drm_device *dev, int level) { … } /* * Sets the power state for the panel. */ static void psb_intel_lvds_set_power(struct drm_device *dev, bool on) { … } static void psb_intel_lvds_encoder_dpms(struct drm_encoder *encoder, int mode) { … } static void psb_intel_lvds_save(struct drm_connector *connector) { … } static void psb_intel_lvds_restore(struct drm_connector *connector) { … } enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { … } bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { … } static void psb_intel_lvds_prepare(struct drm_encoder *encoder) { … } static void psb_intel_lvds_commit(struct drm_encoder *encoder) { … } static void psb_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 psb_intel_lvds_get_modes(struct drm_connector *connector) { … } void psb_intel_lvds_destroy(struct drm_connector *connector) { … } int psb_intel_lvds_set_property(struct drm_connector *connector, struct drm_property *property, uint64_t value) { … } static const struct drm_encoder_helper_funcs psb_intel_lvds_helper_funcs = …; const struct drm_connector_helper_funcs psb_intel_lvds_connector_helper_funcs = …; const struct drm_connector_funcs psb_intel_lvds_connector_funcs = …; /** * psb_intel_lvds_init - setup LVDS connectors on this device * @dev: drm device * @mode_dev: 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 psb_intel_lvds_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev) { … }
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