// SPDX-License-Identifier: GPL-2.0 /* * Sony ACX565AKM LCD Panel driver * * Copyright (C) 2019 Texas Instruments Incorporated * * Based on the omapdrm-specific panel-sony-acx565akm driver * * Copyright (C) 2010 Nokia Corporation * Author: Imre Deak <[email protected]> */ /* * TODO (to be addressed with hardware access to test the changes): * * - Update backlight support to use backlight_update_status() etc. * - Use prepare/unprepare for the basic power on/off of the backligt */ #include <linux/backlight.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/jiffies.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/sched.h> #include <linux/spi/spi.h> #include <video/mipi_display.h> #include <drm/drm_connector.h> #include <drm/drm_modes.h> #include <drm/drm_panel.h> #define CTRL_DISP_BRIGHTNESS_CTRL_ON … #define CTRL_DISP_AMBIENT_LIGHT_CTRL_ON … #define CTRL_DISP_BACKLIGHT_ON … #define CTRL_DISP_AUTO_BRIGHTNESS_ON … #define MIPID_CMD_WRITE_CABC … #define MIPID_CMD_READ_CABC … #define MIPID_VER_LPH8923 … #define MIPID_VER_LS041Y3 … #define MIPID_VER_L4F00311 … #define MIPID_VER_ACX565AKM … struct acx565akm_panel { … }; #define to_acx565akm_device(p) … static void acx565akm_transfer(struct acx565akm_panel *lcd, int cmd, const u8 *wbuf, int wlen, u8 *rbuf, int rlen) { … } static inline void acx565akm_cmd(struct acx565akm_panel *lcd, int cmd) { … } static inline void acx565akm_write(struct acx565akm_panel *lcd, int reg, const u8 *buf, int len) { … } static inline void acx565akm_read(struct acx565akm_panel *lcd, int reg, u8 *buf, int len) { … } /* ----------------------------------------------------------------------------- * Auto Brightness Control Via sysfs */ static unsigned int acx565akm_get_cabc_mode(struct acx565akm_panel *lcd) { … } static void acx565akm_set_cabc_mode(struct acx565akm_panel *lcd, unsigned int mode) { … } static unsigned int acx565akm_get_hw_cabc_mode(struct acx565akm_panel *lcd) { … } static const char * const acx565akm_cabc_modes[] = …; static ssize_t cabc_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t cabc_mode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t cabc_available_modes_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RW(cabc_mode); static DEVICE_ATTR_RO(cabc_available_modes); static struct attribute *acx565akm_cabc_attrs[] = …; static const struct attribute_group acx565akm_cabc_attr_group = …; /* ----------------------------------------------------------------------------- * Backlight Device */ static int acx565akm_get_actual_brightness(struct acx565akm_panel *lcd) { … } static void acx565akm_set_brightness(struct acx565akm_panel *lcd, int level) { … } static int acx565akm_bl_update_status_locked(struct backlight_device *dev) { … } static int acx565akm_bl_update_status(struct backlight_device *dev) { … } static int acx565akm_bl_get_intensity(struct backlight_device *dev) { … } static const struct backlight_ops acx565akm_bl_ops = …; static int acx565akm_backlight_init(struct acx565akm_panel *lcd) { … } static void acx565akm_backlight_cleanup(struct acx565akm_panel *lcd) { … } /* ----------------------------------------------------------------------------- * DRM Bridge Operations */ static void acx565akm_set_sleep_mode(struct acx565akm_panel *lcd, int on) { … } static void acx565akm_set_display_state(struct acx565akm_panel *lcd, int enabled) { … } static int acx565akm_power_on(struct acx565akm_panel *lcd) { … } static void acx565akm_power_off(struct acx565akm_panel *lcd) { … } static int acx565akm_disable(struct drm_panel *panel) { … } static int acx565akm_enable(struct drm_panel *panel) { … } static const struct drm_display_mode acx565akm_mode = …; static int acx565akm_get_modes(struct drm_panel *panel, struct drm_connector *connector) { … } static const struct drm_panel_funcs acx565akm_funcs = …; /* ----------------------------------------------------------------------------- * Probe, Detect and Remove */ static int acx565akm_detect(struct acx565akm_panel *lcd) { … } static int acx565akm_probe(struct spi_device *spi) { … } static void acx565akm_remove(struct spi_device *spi) { … } static const struct of_device_id acx565akm_of_match[] = …; MODULE_DEVICE_TABLE(of, acx565akm_of_match); static const struct spi_device_id acx565akm_ids[] = …; MODULE_DEVICE_TABLE(spi, acx565akm_ids); static struct spi_driver acx565akm_driver = …; module_spi_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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