// SPDX-License-Identifier: GPL-2.0 /* * Panel driver for the WideChips WS2401 480x800 DPI RGB panel, used in * the Samsung Mobile Display (SMD) LMS380KF01. * Found in the Samsung Galaxy Ace 2 GT-I8160 mobile phone. * Linus Walleij <[email protected]> * Inspired by code and know-how in the vendor driver by Gareth Phillips. */ #include <drm/drm_mipi_dbi.h> #include <drm/drm_modes.h> #include <drm/drm_panel.h> #include <linux/backlight.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/media-bus-format.h> #include <linux/module.h> #include <linux/regulator/consumer.h> #include <linux/spi/spi.h> #include <video/mipi_display.h> #define WS2401_RESCTL … #define WS2401_PSMPS … #define WS2401_NSMPS … #define WS2401_SMPS … #define WS2401_BCMODE … #define WS2401_WRBLCTL … #define WS2401_WRDISBV … #define WS2401_WRCTRLD … #define WS2401_WRMIE … #define WS2401_READ_ID1 … #define WS2401_READ_ID2 … #define WS2401_READ_ID3 … #define WS2401_GAMMA_R1 … #define WS2401_GAMMA_G1 … #define WS2401_GAMMA_B1 … #define WS2401_GAMMA_R2 … #define WS2401_GAMMA_G2 … #define WS2401_GAMMA_B2 … #define WS2401_PASSWD1 … #define WS2401_DISCTL … #define WS2401_PWRCTL … #define WS2401_VCOMCTL … #define WS2401_SRCCTL … #define WS2401_PANELCTL … static const u8 ws2401_dbi_read_commands[] = …; /** * struct ws2401 - state container for a panel controlled by the WS2401 * controller */ struct ws2401 { … }; static const struct drm_display_mode lms380kf01_480_800_mode = …; static inline struct ws2401 *to_ws2401(struct drm_panel *panel) { … } static void ws2401_read_mtp_id(struct ws2401 *ws) { … } static int ws2401_power_on(struct ws2401 *ws) { … } static int ws2401_power_off(struct ws2401 *ws) { … } static int ws2401_unprepare(struct drm_panel *panel) { … } static int ws2401_disable(struct drm_panel *panel) { … } static int ws2401_prepare(struct drm_panel *panel) { … } static int ws2401_enable(struct drm_panel *panel) { … } /** * ws2401_get_modes() - return the mode * @panel: the panel to get the mode for * @connector: reference to the central DRM connector control structure */ static int ws2401_get_modes(struct drm_panel *panel, struct drm_connector *connector) { … } static const struct drm_panel_funcs ws2401_drm_funcs = …; static int ws2401_set_brightness(struct backlight_device *bl) { … } static const struct backlight_ops ws2401_bl_ops = …; static const struct backlight_properties ws2401_bl_props = …; static int ws2401_probe(struct spi_device *spi) { … } static void ws2401_remove(struct spi_device *spi) { … } /* * Samsung LMS380KF01 is the one instance of this display controller that we * know about, but if more are found, the controller can be parameterized * here and used for other configurations. */ static const struct of_device_id ws2401_match[] = …; MODULE_DEVICE_TABLE(of, ws2401_match); static const struct spi_device_id ws2401_ids[] = …; MODULE_DEVICE_TABLE(spi, ws2401_ids); static struct spi_driver ws2401_driver = …; module_spi_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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