// SPDX-License-Identifier: GPL-2.0-only /* * Novatek NT35950 DriverIC panels driver * * Copyright (c) 2021 AngeloGioacchino Del Regno * <[email protected]> */ #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_graph.h> #include <linux/regulator/consumer.h> #include <drm/drm_connector.h> #include <drm/drm_crtc.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_modes.h> #include <drm/drm_panel.h> #define MCS_CMD_MAUCCTR … #define MCS_PARAM_SCALER_FUNCTION … #define MCS_PARAM_SCALEUP_MODE … #define MCS_SCALEUP_SIMPLE … #define MCS_SCALEUP_BILINEAR … #define MCS_SCALEUP_DUPLICATE … /* VESA Display Stream Compression param */ #define MCS_PARAM_VESA_DSC_ON … /* Data Compression mode */ #define MCS_PARAM_DATA_COMPRESSION … #define MCS_DATA_COMPRESSION_NONE … #define MCS_DATA_COMPRESSION_FBC … #define MCS_DATA_COMPRESSION_DSC … /* Display Output control */ #define MCS_PARAM_DISP_OUTPUT_CTRL … #define MCS_DISP_OUT_SRAM_EN … #define MCS_DISP_OUT_VIDEO_MODE … /* VESA Display Stream Compression setting */ #define MCS_PARAM_VESA_DSC_SETTING … /* SubPixel Rendering (SPR) */ #define MCS_PARAM_SPR_EN … #define MCS_PARAM_SPR_MODE … #define MCS_SPR_MODE_YYG_RAINBOW_RGB … #define NT35950_VREG_MAX … struct nt35950 { … }; struct nt35950_panel_mode { … }; struct nt35950_panel_desc { … }; static inline struct nt35950 *to_nt35950(struct drm_panel *panel) { … } static void nt35950_reset(struct nt35950 *nt) { … } /* * nt35950_set_cmd2_page - Select manufacturer control (CMD2) page * @dsi_ctx: context for mipi_dsi functions * @nt: Main driver structure * @page: Page number (0-7) */ static void nt35950_set_cmd2_page(struct mipi_dsi_multi_context *dsi_ctx, struct nt35950 *nt, u8 page) { … } /* * nt35950_set_data_compression - Set data compression mode * @dsi_ctx: context for mipi_dsi functions * @nt: Main driver structure * @comp_mode: Compression mode */ static void nt35950_set_data_compression(struct mipi_dsi_multi_context *dsi_ctx, struct nt35950 *nt, u8 comp_mode) { … } /* * nt35950_set_scaler - Enable/disable resolution upscaling * @dsi_ctx: context for mipi_dsi functions * @scale_up: Scale up function control */ static void nt35950_set_scaler(struct mipi_dsi_multi_context *dsi_ctx, u8 scale_up) { … } /* * nt35950_set_scale_mode - Resolution upscaling mode * @dsi_ctx: context for mipi_dsi functions * @mode: Scaler mode (MCS_DATA_COMPRESSION_*) */ static void nt35950_set_scale_mode(struct mipi_dsi_multi_context *dsi_ctx, u8 mode) { … } /* * nt35950_inject_black_image - Display a completely black image * @dsi_ctx: context for mipi_dsi functions * * After IC setup, the attached panel may show random data * due to driveric behavior changes (resolution, compression, * scaling, etc). This function, called after parameters setup, * makes the driver ic to output a completely black image to * the display. * It makes sense to push a black image before sending the sleep-out * and display-on commands. */ static void nt35950_inject_black_image(struct mipi_dsi_multi_context *dsi_ctx) { … } /* * nt35950_set_dispout - Set Display Output register parameters * @nt: Main driver structure * @dsi_ctx: context for mipi_dsi functions */ static void nt35950_set_dispout(struct mipi_dsi_multi_context *dsi_ctx, struct nt35950 *nt) { … } static int nt35950_get_current_mode(struct nt35950 *nt) { … } static int nt35950_on(struct nt35950 *nt) { … } static void nt35950_off(struct nt35950 *nt) { … } static int nt35950_sharp_init_vregs(struct nt35950 *nt, struct device *dev) { … } static int nt35950_prepare(struct drm_panel *panel) { … } static int nt35950_unprepare(struct drm_panel *panel) { … } static int nt35950_get_modes(struct drm_panel *panel, struct drm_connector *connector) { … } static const struct drm_panel_funcs nt35950_panel_funcs = …; static int nt35950_probe(struct mipi_dsi_device *dsi) { … } static void nt35950_remove(struct mipi_dsi_device *dsi) { … } static const struct nt35950_panel_mode sharp_ls055d1sx04_modes[] = …; static const struct nt35950_panel_desc sharp_ls055d1sx04 = …; static const struct of_device_id nt35950_of_match[] = …; MODULE_DEVICE_TABLE(of, nt35950_of_match); static struct mipi_dsi_driver nt35950_driver = …; module_mipi_dsi_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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