// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2019, The Linux Foundation. All rights reserved. #include <linux/delay.h>#include <linux/module.h>#include <linux/property.h>#include <linux/mod_devicetable.h>#include <linux/gpio/consumer.h>#include <linux/regulator/consumer.h>#include <video/mipi_display.h>#include <drm/drm_mipi_dsi.h>#include <drm/drm_modes.h>#include <drm/drm_panel.h>struct visionox_rm69299_panel_desc {const struct drm_display_mode *mode;const u8 *init_seq;unsigned int init_seq_len;struct visionox_rm69299 {struct drm_panel panel;struct regulator_bulk_data *supplies;struct gpio_desc *reset_gpio;struct mipi_dsi_device *dsi;const struct visionox_rm69299_panel_desc *desc;static const struct regulator_bulk_data visionox_rm69299_supplies[] = {"vdda" , .init_load_uA = 32000 },"vdd3p3" , .init_load_uA = 13200 },static const u8 visionox_rm69299_1080x2248_60hz_init_seq[][2] = {static const u8 visionox_rm69299_1080x2160_60hz_init_seq[][2] = {static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel)return container_of(panel, struct visionox_rm69299, panel);static int visionox_rm69299_power_on(struct visionox_rm69299 *ctx)int ret;if (ret < 0)return ret;/* * Reset sequence of visionox panel requires the panel to be * out of reset for 10ms, followed by being held in reset * for 10ms and then out again return 0;static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx)return regulator_bulk_disable(ARRAY_SIZE(visionox_rm69299_supplies),static int visionox_rm69299_unprepare(struct drm_panel *panel)struct visionox_rm69299 *ctx = panel_to_ctx(panel);struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };/* 120ms delay required here as per DCS spec */ return visionox_rm69299_power_off(ctx);static int visionox_rm69299_prepare(struct drm_panel *panel)struct visionox_rm69299 *ctx = panel_to_ctx(panel);struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };int ret, i;if (ret < 0)return ret;for (i = 0; i < ctx->desc->init_seq_len; i++)/* Per DSI spec wait 120ms after sending exit sleep DCS command */ /* Per DSI spec wait 120ms after sending set_display_on DCS command */ return dsi_ctx.accum_err;static const struct drm_display_mode visionox_rm69299_1080x2248_60hz = {"1080x2248" ,static const struct drm_display_mode visionox_rm69299_1080x2160_60hz = {static int visionox_rm69299_get_modes(struct drm_panel *panel,struct drm_connector *connector)struct visionox_rm69299 *ctx = panel_to_ctx(panel);struct drm_display_mode *mode;if (!mode) {"failed to create a new display mode\n" );return 0;return 1;static const struct drm_panel_funcs visionox_rm69299_drm_funcs = {static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)struct device *dev = &dsi->dev;struct visionox_rm69299 *ctx;int ret;struct visionox_rm69299, panel,if (IS_ERR(ctx))return PTR_ERR(ctx);if (!ctx->desc)return -EINVAL;if (ret < 0)return ret;"reset" , GPIOD_OUT_LOW);if (IS_ERR(ctx->reset_gpio)) {"cannot get reset gpio %ld\n" , PTR_ERR(ctx->reset_gpio));return PTR_ERR(ctx->reset_gpio);if (ret < 0) {"dsi attach failed ret = %d\n" , ret);goto err_dsi_attach;return 0;return ret;static void visionox_rm69299_remove(struct mipi_dsi_device *dsi)struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi);const struct visionox_rm69299_panel_desc visionox_rm69299_1080p_display_desc = {const u8 *)visionox_rm69299_1080x2248_60hz_init_seq,const struct visionox_rm69299_panel_desc visionox_rm69299_shift_desc = {const u8 *)visionox_rm69299_1080x2160_60hz_init_seq,static const struct of_device_id visionox_rm69299_of_match[] = {"visionox,rm69299-1080p-display" ,"visionox,rm69299-shift" ,/* sentinel */ } static struct mipi_dsi_driver visionox_rm69299_driver = {"panel-visionox-rm69299" ,"Visionox RM69299 DSI Panel Driver" );"GPL v2" );
Messung V0.5 C=93 H=96 G=94
