From: Alexander Warnecke <awarnecke...@hotmail.com>

The BOE TH101MB31IG002-28A panel is a WXGA panel.
It is used in Pine64 PineTab2 and PineTab-V.

Signed-off-by: Alexander Warnecke <awarnecke...@hotmail.com>
Signed-off-by: Manuel Traut <ma...@mecka.net>
Reviewed-by: Jessica Zhang <quic_jessz...@quicinc.com>
Link: https://lore.kernel.org/r/20240102-pinetab2-v3-2-cb1aa69f8...@mecka.net
Signed-off-by: Neil Armstrong <neil.armstr...@linaro.org>
Link: 
https://patchwork.freedesktop.org/patch/msgid/20240102-pinetab2-v3-2-cb1aa69f8...@mecka.net
(cherry picked from commit 420186db1483da4e16cd5d5a472f511a35dbc1b7)
---
 drivers/gpu/drm/panel/Kconfig                      |  11 +
 drivers/gpu/drm/panel/Makefile                     |   1 +
 .../gpu/drm/panel/panel-boe-th101mb31ig002-28a.c   | 322 +++++++++++++++++++++
 3 files changed, 334 insertions(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 8f3783742208..00a947941c19 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 d94a644d0a6c..015bb8d70fbd 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..763e9f8342d3
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2023 Alexander Warnecke <awarnecke...@hotmail.com>
+ * Copyright (c) 2023 Manuel Traut <ma...@mecka.net>
+ * Copyright (c) 2023 Dang Huynh <danc...@riseup.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;
+
+       struct mipi_dsi_device *dsi;
+
+       struct regulator *power;
+       struct gpio_desc *enable;
+       struct gpio_desc *reset;
+
+       enum drm_panel_orientation orientation;
+};
+
+static void boe_th101mb31ig002_reset(struct boe_th101mb31ig002 *ctx)
+{
+       gpiod_direction_output(ctx->reset, 0);
+       usleep_range(10, 100);
+       gpiod_direction_output(ctx->reset, 1);
+       usleep_range(10, 100);
+       gpiod_direction_output(ctx->reset, 0);
+       usleep_range(5000, 6000);
+}
+
+static int boe_th101mb31ig002_enable(struct drm_panel *panel)
+{
+       struct boe_th101mb31ig002 *ctx = container_of(panel,
+                                                     struct boe_th101mb31ig002,
+                                                     panel);
+       struct mipi_dsi_device *dsi = ctx->dsi;
+       struct device *dev = &dsi->dev;
+       int ret;
+
+       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, 0x00, 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);
+
+       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(120);
+
+       ret = mipi_dsi_dcs_set_display_on(dsi);
+       if (ret < 0) {
+               dev_err(dev, "Failed to set panel on: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+static int boe_th101mb31ig002_disable(struct drm_panel *panel)
+{
+       struct boe_th101mb31ig002 *ctx = container_of(panel,
+                                                     struct boe_th101mb31ig002,
+                                                     panel);
+       struct mipi_dsi_device *dsi = ctx->dsi;
+       struct device *dev = &dsi->dev;
+       int ret;
+
+       ret = mipi_dsi_dcs_set_display_off(dsi);
+       if (ret < 0)
+               dev_err(dev, "Failed to set panel off: %d\n", ret);
+
+       msleep(120);
+
+       ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+       if (ret < 0)
+               dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+
+       return 0;
+}
+
+static int boe_th101mb31ig002_unprepare(struct drm_panel *panel)
+{
+       struct boe_th101mb31ig002 *ctx = container_of(panel,
+                                                     struct boe_th101mb31ig002,
+                                                     panel);
+
+       gpiod_set_value_cansleep(ctx->reset, 1);
+       gpiod_set_value_cansleep(ctx->enable, 0);
+       regulator_disable(ctx->power);
+
+       return 0;
+}
+
+static int boe_th101mb31ig002_prepare(struct drm_panel *panel)
+{
+       struct boe_th101mb31ig002 *ctx = container_of(panel,
+                                                     struct boe_th101mb31ig002,
+                                                     panel);
+       struct device *dev = &ctx->dsi->dev;
+       int ret;
+
+       ret = regulator_enable(ctx->power);
+       if (ret) {
+               dev_err(dev, "Failed to enable power supply: %d\n", ret);
+               return ret;
+       }
+
+       gpiod_set_value_cansleep(ctx->enable, 1);
+       msleep(50);
+       boe_th101mb31ig002_reset(ctx);
+       boe_th101mb31ig002_enable(panel);
+
+       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,
+       .width_mm       = 135,
+       .height_mm      = 216,
+       .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);
+
+       connector->display_info.bpc = 8;
+       connector->display_info.width_mm = mode->width_mm;
+       connector->display_info.height_mm = mode->height_mm;
+
+       /*
+        * TODO: Remove once all drm drivers call
+        * drm_connector_set_orientation_from_panel()
+        */
+       drm_connector_set_panel_orientation(connector, ctx->orientation);
+
+       drm_mode_probed_add(connector, mode);
+
+       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 = {
+       .prepare = boe_th101mb31ig002_prepare,
+       .unprepare = boe_th101mb31ig002_unprepare,
+       .disable = boe_th101mb31ig002_disable,
+       .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;
+
+       mipi_dsi_set_drvdata(dsi, ctx);
+       ctx->dsi = dsi;
+
+       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;
+
+       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");
+
+       drm_panel_init(&ctx->panel, &dsi->dev, &boe_th101mb31ig002_funcs,
+                      DRM_MODE_CONNECTOR_DSI);
+
+       ret = drm_panel_of_backlight(&ctx->panel);
+       if (ret)
+               return ret;
+
+       drm_panel_add(&ctx->panel);
+
+       ret = mipi_dsi_attach(dsi);
+       if (ret < 0) {
+               dev_err_probe(&dsi->dev, ret,
+                             "Failed to attach panel to DSI host\n");
+               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 <awarnecke...@hotmail.com>");
+MODULE_DESCRIPTION("BOE TH101MB31IG002-28A MIPI-DSI LCD panel");
+MODULE_LICENSE("GPL");

-- 
2.43.0

Reply via email to