--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021 Raffaele Tranquillini <raffaele.tranquillini@gmail.com>
+ *
+ * Generated using linux-mdss-dsi-panel-driver-generator from Lineage OS device tree:
+ * https://github.com/LineageOS/android_kernel_xiaomi_msm8996/blob/lineage-18.1/arch/arm/boot/dts/qcom/a1-msm8996-mtp.dtsi
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct jdi_fhd_r63452 {
+ struct drm_panel panel;
+ struct mipi_dsi_device *dsi;
+ struct gpio_desc *reset_gpio;
+ bool prepared;
+};
+
+static inline struct jdi_fhd_r63452 *to_jdi_fhd_r63452(struct drm_panel *panel)
+{
+ return container_of(panel, struct jdi_fhd_r63452, panel);
+}
+
+#define dsi_generic_write_seq(dsi, seq...) do { \
+ static const u8 d[] = { seq }; \
+ int ret; \
+ ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d)); \
+ if (ret < 0) \
+ return ret; \
+ } while (0)
+
+#define dsi_dcs_write_seq(dsi, seq...) do { \
+ static const u8 d[] = { seq }; \
+ int ret; \
+ ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
+ if (ret < 0) \
+ return ret; \
+ } while (0)
+
+static void jdi_fhd_r63452_reset(struct jdi_fhd_r63452 *ctx)
+{
+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+ usleep_range(10000, 11000);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ usleep_range(1000, 2000);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+ usleep_range(10000, 11000);
+}
+
+static int jdi_fhd_r63452_on(struct jdi_fhd_r63452 *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ dsi_generic_write_seq(dsi, 0xb0, 0x00);
+ dsi_generic_write_seq(dsi, 0xd6, 0x01);
+ dsi_generic_write_seq(dsi, 0xec,
+ 0x64, 0xdc, 0xec, 0x3b, 0x52, 0x00, 0x0b, 0x0b,
+ 0x13, 0x15, 0x68, 0x0b, 0xb5);
+ dsi_generic_write_seq(dsi, 0xb0, 0x03);
+
+ ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set tear on: %d\n", ret);
+ return ret;
+ }
+
+ dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
+
+ ret = mipi_dsi_dcs_set_pixel_format(dsi, 0x77);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set pixel format: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 0x0437);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set column address: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 0x077f);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set page address: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0x0000);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set tear scanline: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_set_display_brightness(dsi, 0x00ff);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set display brightness: %d\n", ret);
+ return ret;
+ }
+
+ dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x24);
+ dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00);
+ dsi_dcs_write_seq(dsi, MIPI_DCS_SET_CABC_MIN_BRIGHTNESS, 0x00);
+ dsi_dcs_write_seq(dsi, 0x84, 0x00);
+
+ ret = mipi_dsi_dcs_set_display_on(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set display on: %d\n", ret);
+ return ret;
+ }
+ msleep(20);
+
+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
+ return ret;
+ }
+ msleep(80);
+
+ dsi_generic_write_seq(dsi, 0xb0, 0x04);
+ dsi_dcs_write_seq(dsi, 0x84, 0x00);
+ dsi_generic_write_seq(dsi, 0xc8, 0x11);
+ dsi_generic_write_seq(dsi, 0xb0, 0x03);
+
+ return 0;
+}
+
+static int jdi_fhd_r63452_off(struct jdi_fhd_r63452 *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ dsi_generic_write_seq(dsi, 0xb0, 0x00);
+ dsi_generic_write_seq(dsi, 0xd6, 0x01);
+ dsi_generic_write_seq(dsi, 0xec,
+ 0x64, 0xdc, 0xec, 0x3b, 0x52, 0x00, 0x0b, 0x0b,
+ 0x13, 0x15, 0x68, 0x0b, 0x95);
+ dsi_generic_write_seq(dsi, 0xb0, 0x03);
+
+ ret = mipi_dsi_dcs_set_display_off(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set display off: %d\n", ret);
+ return ret;
+ }
+ usleep_range(2000, 3000);
+
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+ return ret;
+ }
+ msleep(120);
+
+ return 0;
+}
+
+static int jdi_fhd_r63452_prepare(struct drm_panel *panel)
+{
+ struct jdi_fhd_r63452 *ctx = to_jdi_fhd_r63452(panel);
+ struct device *dev = &ctx->dsi->dev;
+ int ret;
+
+ if (ctx->prepared)
+ return 0;
+
+ jdi_fhd_r63452_reset(ctx);
+
+ ret = jdi_fhd_r63452_on(ctx);
+ if (ret < 0) {
+ dev_err(dev, "Failed to initialize panel: %d\n", ret);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ return ret;
+ }
+
+ ctx->prepared = true;
+ return 0;
+}
+
+static int jdi_fhd_r63452_unprepare(struct drm_panel *panel)
+{
+ struct jdi_fhd_r63452 *ctx = to_jdi_fhd_r63452(panel);
+ struct device *dev = &ctx->dsi->dev;
+ int ret;
+
+ if (!ctx->prepared)
+ return 0;
+
+ ret = jdi_fhd_r63452_off(ctx);
+ if (ret < 0)
+ dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
+
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+
+ ctx->prepared = false;
+ return 0;
+}
+
+static const struct drm_display_mode jdi_fhd_r63452_mode = {
+ .clock = (1080 + 120 + 16 + 40) * (1920 + 4 + 2 + 4) * 60 / 1000,
+ .hdisplay = 1080,
+ .hsync_start = 1080 + 120,
+ .hsync_end = 1080 + 120 + 16,
+ .htotal = 1080 + 120 + 16 + 40,
+ .vdisplay = 1920,
+ .vsync_start = 1920 + 4,
+ .vsync_end = 1920 + 4 + 2,
+ .vtotal = 1920 + 4 + 2 + 4,
+ .width_mm = 64,
+ .height_mm = 114,
+};
+
+static int jdi_fhd_r63452_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(connector->dev, &jdi_fhd_r63452_mode);
+ if (!mode)
+ return -ENOMEM;
+
+ drm_mode_set_name(mode);
+
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+ connector->display_info.width_mm = mode->width_mm;
+ connector->display_info.height_mm = mode->height_mm;
+ drm_mode_probed_add(connector, mode);
+
+ return 1;
+}
+
+static const struct drm_panel_funcs jdi_fhd_r63452_panel_funcs = {
+ .prepare = jdi_fhd_r63452_prepare,
+ .unprepare = jdi_fhd_r63452_unprepare,
+ .get_modes = jdi_fhd_r63452_get_modes,
+};
+
+static int jdi_fhd_r63452_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct jdi_fhd_r63452 *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(ctx->reset_gpio))
+ return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
+ "Failed to get reset-gpios\n");
+
+ ctx->dsi = dsi;
+ mipi_dsi_set_drvdata(dsi, ctx);
+
+ dsi->lanes = 4;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
+ MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+ drm_panel_init(&ctx->panel, dev, &jdi_fhd_r63452_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+
+ ret = drm_panel_of_backlight(&ctx->panel);
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to get backlight\n");
+
+ drm_panel_add(&ctx->panel);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int jdi_fhd_r63452_remove(struct mipi_dsi_device *dsi)
+{
+ struct jdi_fhd_r63452 *ctx = mipi_dsi_get_drvdata(dsi);
+ int ret;
+
+ ret = mipi_dsi_detach(dsi);
+ if (ret < 0)
+ dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
+
+ drm_panel_remove(&ctx->panel);
+
+ return 0;
+}
+
+static const struct of_device_id jdi_fhd_r63452_of_match[] = {
+ { .compatible = "jdi,fhd-r63452" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, jdi_fhd_r63452_of_match);
+
+static struct mipi_dsi_driver jdi_fhd_r63452_driver = {
+ .probe = jdi_fhd_r63452_probe,
+ .remove = jdi_fhd_r63452_remove,
+ .driver = {
+ .name = "panel-jdi-fhd-r63452",
+ .of_match_table = jdi_fhd_r63452_of_match,
+ },
+};
+module_mipi_dsi_driver(jdi_fhd_r63452_driver);
+
+MODULE_AUTHOR("Raffaele Tranquillini <raffaele.tranquillini@gmail.com>");
+MODULE_DESCRIPTION("DRM driver for JDI FHD R63452 DSI panel, command mode");
+MODULE_LICENSE("GPL v2");
projects / linux-2.6-block.git / commitdiff