[PATCH 2/6] drm/panel: Add driver for BOE TH101MB31IG002-28A panel

Manuel Traut
2023-12-22T11:11:10Z

From: Segfault <awarnecke002@hotmail.com>

The BOE TH101MB31IG002-28A panel is a WXGA panel.
It is used in Pine64 Pinetab2 and PinetabV.

Signed-off-by: Segfault <awarnecke002@hotmail.com>
Signed-off-by: Manuel Traut <manut@mecka.net>
---
drivers/gpu/drm/panel/Kconfig | 11 +
drivers/gpu/drm/panel/Makefile | 1 +
.../gpu/drm/panel/panel-boe-th101mb31ig002-28a.c | 307 +++++++++++++++++++++
3 files changed, 319 insertions(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 99e14dc212ec..927ddd10e688 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -67,6 +67,17 @@ config DRM_PANEL_BOE_HIMAX8279D
24 bit RGB per pixel. It provides a MIPI DSI interface to
the host and has a built-in LED backlight.

+config DRM_PANEL_BOE_TH101MB31UIG002_28A
+ tristate "Boe TH101MB31UIG002-28A panel"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y here if you want to enable support for Boe
+ TH101MB31UIG002-28A TFT-LCD modules. The panel has a 800x1280
+ resolution and uses 24 bit RGB per pixel. It provides a MIPI DSI
+ interface to the host and has a built-in LED backlight.
+
config DRM_PANEL_BOE_TV101WUM_NL6
tristate "BOE TV101WUM and AUO KD101N80 45NA 1200x1920 panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index d10c3de51c6d..dd6e1ac9d0a2 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -5,6 +5,7 @@ obj-$(CONFIG_DRM_PANEL_ASUS_Z00T_TM5P5_NT35596) += panel-asus-z00t-tm5p5-n35596.
obj-$(CONFIG_DRM_PANEL_AUO_A030JTN01) += panel-auo-a030jtn01.o
obj-$(CONFIG_DRM_PANEL_BOE_BF060Y8M_AJ0) += panel-boe-bf060y8m-aj0.o
obj-$(CONFIG_DRM_PANEL_BOE_HIMAX8279D) += panel-boe-himax8279d.o
+obj-$(CONFIG_DRM_PANEL_BOE_TH101MB31UIG002_28A) += panel-boe-th101mb31ig002-28a.o
obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o
obj-$(CONFIG_DRM_PANEL_DSI_CM) += panel-dsi-cm.o
obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o
diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
new file mode 100644
index 000000000000..ac1dc99a0300
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2023 Alexander Warnecke <awarnecke002@hotmail.com>
+ * Copyright (c) 2023 Manuel Traut <manut@mecka.net>
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_connector.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct boe_th101mb31ig002 {
+ struct drm_panel panel;
+ bool enabled;
+ bool prepared;
+
+ struct mipi_dsi_device *dsi;
+
+ struct regulator *power;
+ struct gpio_desc *enable;
+ struct gpio_desc *reset;
+
+ enum drm_panel_orientation orientation;
+};
+
+static int boe_th101mb31ig002_disable(struct drm_panel *panel)
+{
+ struct boe_th101mb31ig002 *ctx = container_of(panel,
+ struct boe_th101mb31ig002,
+ panel);
+
+ if (!ctx->enabled)
+ return 0;
+
+ mipi_dsi_dcs_set_display_off(ctx->dsi);
+ msleep(120);
+ ctx->enabled = false;
+
+ return 0;
+}
+
+static int boe_th101mb31ig002_unprepare(struct drm_panel *panel)
+{
+ struct boe_th101mb31ig002 *ctx = container_of(panel,
+ struct boe_th101mb31ig002,
+ panel);
+
+ if (!ctx->prepared)
+ return 0;
+
+ mipi_dsi_dcs_enter_sleep_mode(ctx->dsi);
+ msleep(220);
+ gpiod_set_value_cansleep(ctx->reset, 1);
+ gpiod_set_value_cansleep(ctx->enable, 0);
+ regulator_disable(ctx->power);
+ ctx->prepared = false;
+
+ return 0;
+}
+
+static int boe_th101mb31ig002_prepare(struct drm_panel *panel)
+{
+ struct boe_th101mb31ig002 *ctx = container_of(panel,
+ struct boe_th101mb31ig002,
+ panel);
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ int ret;
+
+ if (ctx->prepared)
+ return 0;
+
+ ret = regulator_enable(ctx->power);
+ if (ret) {
+ dev_err(&dsi->dev, "Failed to enable power supply: %d\n", ret);
+ return ret;
+ }
+
+ gpiod_set_value_cansleep(ctx->enable, 1);
+ msleep(120);
+ gpiod_direction_output(ctx->reset, 1);
+ msleep(120);
+ gpiod_direction_output(ctx->reset, 0);
+ msleep(120);
+
+ mipi_dsi_dcs_write_seq(dsi, 0xE0, 0xAB, 0xBA);
+ mipi_dsi_dcs_write_seq(dsi, 0xE1, 0xBA, 0xAB);
+ mipi_dsi_dcs_write_seq(dsi, 0xB1, 0x10, 0x01, 0x47, 0xFF);
+ mipi_dsi_dcs_write_seq(dsi, 0xB2, 0x0C, 0x14, 0x04, 0x50, 0x50, 0x14);
+ mipi_dsi_dcs_write_seq(dsi, 0xB3, 0x56, 0x53, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xB4, 0x33, 0x30, 0x04);
+ mipi_dsi_dcs_write_seq(dsi, 0xB6, 0xB0, 0x00, 0x00, 0x10, 0x00, 0x10,
+ 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xB8, 0x05, 0x12, 0x29, 0x49, 0x48, 0x00,
+ 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xB9, 0x7C, 0x65, 0x55, 0x49, 0x46, 0x36,
+ 0x3B, 0x24, 0x3D, 0x3C, 0x3D, 0x5C, 0x4C, 0x55,
+ 0x47, 0x46, 0x39, 0x26, 0x06, 0x7C, 0x65, 0x55,
+ 0x49, 0x46, 0x36, 0x3B, 0x24, 0x3D, 0x3C, 0x3D,
+ 0x5C, 0x4C, 0x55, 0x47, 0x46, 0x39, 0x26, 0x06);
+ mipi_dsi_dcs_write_seq(dsi, 0xC0, 0xFF, 0x87, 0x12, 0x34, 0x44, 0x44,
+ 0x44, 0x44, 0x98, 0x04, 0x98, 0x04, 0x0F, 0x00,
+ 0x00, 0xC1);
+ mipi_dsi_dcs_write_seq(dsi, 0xC1, 0x54, 0x94, 0x02, 0x85, 0x9F, 0x00,
+ 0x7F, 0x00, 0x54, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xC2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11,
+ 0x22, 0x20, 0x44, 0xFF, 0x18, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xC3, 0x86, 0x46, 0x05, 0x05, 0x1C, 0x1C,
+ 0x1D, 0x1D, 0x02, 0x1F, 0x1F, 0x1E, 0x1E, 0x0F,
+ 0x0F, 0x0D, 0x0D, 0x13, 0x13, 0x11, 0x11, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xC4, 0x07, 0x07, 0x04, 0x04, 0x1C, 0x1C,
+ 0x1D, 0x1D, 0x02, 0x1F, 0x1F, 0x1E, 0x1E, 0x0E,
+ 0x0E, 0x0C, 0x0C, 0x12, 0x12, 0x10, 0x10, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xC6, 0x2A, 0x2A);
+ mipi_dsi_dcs_write_seq(dsi, 0xC8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16);
+ mipi_dsi_dcs_write_seq(dsi, 0xCA, 0xCB, 0x43);
+ mipi_dsi_dcs_write_seq(dsi, 0xCD, 0x0E, 0x4B, 0x4B, 0x20, 0x19, 0x6B,
+ 0x06, 0xB3);
+ mipi_dsi_dcs_write_seq(dsi, 0xD2, 0xE3, 0x2B, 0x38, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xD4, 0x00, 0x01, 0x00, 0x0E, 0x04, 0x44,
+ 0x08, 0x10, 0x00, 0x00, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xE6, 0x80, 0x01, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF);
+ mipi_dsi_dcs_write_seq(dsi, 0xF0, 0x12, 0x03, 0x20, 0x00, 0xFF);
+ mipi_dsi_dcs_write_seq(dsi, 0xF3, 0x00);
+
+ mipi_dsi_dcs_exit_sleep_mode(dsi);
+ msleep(120);
+ ctx->prepared = true;
+
+ return 0;
+}
+
+static int boe_th101mb31ig002_enable(struct drm_panel *panel)
+{
+ struct boe_th101mb31ig002 *ctx = container_of(panel,
+ struct boe_th101mb31ig002,
+ panel);
+
+ if (ctx->enabled)
+ return 0;
+
+ mipi_dsi_dcs_set_display_on(ctx->dsi);
+ msleep(120);
+ ctx->enabled = true;
+
+ return 0;
+}
+
+static const struct drm_display_mode boe_th101mb31ig002_default_mode = {
+ .clock = 73500,
+ .hdisplay = 800,
+ .hsync_start = 800 + 64,
+ .hsync_end = 800 + 64 + 16,
+ .htotal = 800 + 64 + 16 + 64,
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 2,
+ .vsync_end = 1280 + 2 + 4,
+ .vtotal = 1280 + 2 + 4 + 12,
+ .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static int boe_th101mb31ig002_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct boe_th101mb31ig002 *ctx = container_of(panel,
+ struct boe_th101mb31ig002,
+ panel);
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(connector->dev,
+ &boe_th101mb31ig002_default_mode);
+ if (!mode) {
+ dev_err(panel->dev, "Failed to add mode %ux%u@%u\n",
+ boe_th101mb31ig002_default_mode.hdisplay,
+ boe_th101mb31ig002_default_mode.vdisplay,
+ drm_mode_vrefresh(&boe_th101mb31ig002_default_mode));
+ return -ENOMEM;
+ }
+
+ drm_mode_set_name(mode);
+ drm_mode_probed_add(connector, mode);
+
+ connector->display_info.bpc = 8;
+ connector->display_info.width_mm = 216;
+ connector->display_info.height_mm = 135;
+
+ /*
+ * TODO: Remove once all drm drivers call
+ * drm_connector_set_orientation_from_panel()
+ */
+ drm_connector_set_panel_orientation(connector, ctx->orientation);
+
+ return 1;
+}
+
+static enum drm_panel_orientation boe_th101mb31ig002_get_orientation(struct drm_panel *panel)
+{
+ struct boe_th101mb31ig002 *ctx = container_of(panel,
+ struct boe_th101mb31ig002,
+ panel);
+
+ return ctx->orientation;
+}
+
+static const struct drm_panel_funcs boe_th101mb31ig002_funcs = {
+ .disable = boe_th101mb31ig002_disable,
+ .unprepare = boe_th101mb31ig002_unprepare,
+ .prepare = boe_th101mb31ig002_prepare,
+ .enable = boe_th101mb31ig002_enable,
+ .get_modes = boe_th101mb31ig002_get_modes,
+ .get_orientation = boe_th101mb31ig002_get_orientation,
+};
+
+static int boe_th101mb31ig002_dsi_probe(struct mipi_dsi_device *dsi)
+{
+ struct boe_th101mb31ig002 *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->enabled = false;
+ ctx->prepared = false;
+
+ mipi_dsi_set_drvdata(dsi, ctx);
+ ctx->dsi = dsi;
+
+ drm_panel_init(&ctx->panel, &dsi->dev, &boe_th101mb31ig002_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+
+ ctx->power = devm_regulator_get(&dsi->dev, "power");
+ if (IS_ERR(ctx->power))
+ return dev_err_probe(&dsi->dev, PTR_ERR(ctx->power),
+ "Failed to get power regulator\n");
+
+ ctx->enable = devm_gpiod_get(&dsi->dev, "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->enable))
+ return dev_err_probe(&dsi->dev, PTR_ERR(ctx->enable),
+ "Failed to get enable GPIO\n");
+
+ ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(ctx->reset))
+ return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset),
+ "Failed to get reset GPIO\n");
+
+ ret = of_drm_get_panel_orientation(dsi->dev.of_node,
+ &ctx->orientation);
+ if (ret)
+ return dev_err_probe(&dsi->dev, ret,
+ "Failed to get orientation\n");
+
+ ret = drm_panel_of_backlight(&ctx->panel);
+ if (ret)
+ return ret;
+
+ drm_panel_add(&ctx->panel);
+
+ dsi->lanes = 4;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
+ MIPI_DSI_MODE_NO_EOT_PACKET |
+ MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret < 0) {
+ drm_panel_remove(&ctx->panel);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void boe_th101mb31ig002_dsi_remove(struct mipi_dsi_device *dsi)
+{
+ struct boe_th101mb31ig002 *ctx = mipi_dsi_get_drvdata(dsi);
+
+ mipi_dsi_detach(dsi);
+ drm_panel_remove(&ctx->panel);
+}
+
+static const struct of_device_id boe_th101mb31ig002_of_match[] = {
+ { .compatible = "boe,th101mb31ig002-28a", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, boe_th101mb31ig002_of_match);
+
+static struct mipi_dsi_driver boe_th101mb31ig002_driver = {
+ .driver = {
+ .name = "boe-th101mb31ig002-28a",
+ .of_match_table = boe_th101mb31ig002_of_match,
+ },
+ .probe = boe_th101mb31ig002_dsi_probe,
+ .remove = boe_th101mb31ig002_dsi_remove,
+};
+module_mipi_dsi_driver(boe_th101mb31ig002_driver);
+
+MODULE_AUTHOR("Alexander Warnecke <awarnecke002@hotmail.com>");
+MODULE_DESCRIPTION("BOE TH101MB31IG002-28A MIPI-DSI LCD panel");
+MODULE_LICENSE("GPL");

--
2.43.0