[PATCH v1 2/2] drm: panel: Add support for Hydis HV101HD1 MIPI DSI panel
Svyatoslav Ryhel
clamor95 at gmail.com
Thu Jul 17 13:57:52 UTC 2025
HV101HD1-1E1 is a color active matrix TFT LCD module using amorphous
silicon TFT's (Thin Film Transistors) as an active switching devices. This
module has a 10.1 inch diagonally measured active area with HD resolutions
(1366 horizontal by 768 vertical pixel array).
Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
---
drivers/gpu/drm/panel/Kconfig | 13 ++
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-hydis-hv101hd1.c | 188 +++++++++++++++++++
3 files changed, 202 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-hydis-hv101hd1.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index e059b06e0239..eb547da38d56 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -185,6 +185,19 @@ config DRM_PANEL_HIMAX_HX8394
If M is selected the module will be called panel-himax-hx8394.
+config DRM_PANEL_HYDIS_HV101HD1
+ tristate "Hydis HV101HD1 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 the Hydis HV101HD1
+ 2-lane 1366x768 MIPI DSI panel found in ASUS VivoTab RT TF600T.
+ HV101HD1 is a color active matrix TFT LCD module using amorphous
+ silicon TFT's (Thin Film Transistors) as an active switching devices.
+
+ If M is selected the module will be called panel-hydis-hv101hd1
+
config DRM_PANEL_ILITEK_IL9322
tristate "Ilitek ILI9322 320x240 QVGA panels"
depends on OF && SPI
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 1bb8ae46b59b..dd910c712996 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d
obj-$(CONFIG_DRM_PANEL_HIMAX_HX83102) += panel-himax-hx83102.o
obj-$(CONFIG_DRM_PANEL_HIMAX_HX83112A) += panel-himax-hx83112a.o
obj-$(CONFIG_DRM_PANEL_HIMAX_HX8394) += panel-himax-hx8394.o
+obj-$(CONFIG_DRM_PANEL_HYDIS_HV101HD1) += panel-hydis-hv101hd1.o
obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9341) += panel-ilitek-ili9341.o
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9805) += panel-ilitek-ili9805.o
diff --git a/drivers/gpu/drm/panel/panel-hydis-hv101hd1.c b/drivers/gpu/drm/panel/panel-hydis-hv101hd1.c
new file mode 100644
index 000000000000..46426c388932
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-hydis-hv101hd1.c
@@ -0,0 +1,188 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/array_size.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/property.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 hv101hd1 {
+ struct drm_panel panel;
+ struct mipi_dsi_device *dsi;
+ struct regulator_bulk_data *supplies;
+};
+
+static const struct regulator_bulk_data hv101hd1_supplies[] = {
+ { .supply = "vdd" },
+ { .supply = "vio" },
+};
+
+static inline struct hv101hd1 *to_hv101hd1(struct drm_panel *panel)
+{
+ return container_of(panel, struct hv101hd1, panel);
+}
+
+static int hv101hd1_prepare(struct drm_panel *panel)
+{
+ struct hv101hd1 *hv = to_hv101hd1(panel);
+ struct mipi_dsi_multi_context ctx = { .dsi = hv->dsi };
+ struct device *dev = &hv->dsi->dev;
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(hv101hd1_supplies), hv->supplies);
+ if (ret) {
+ dev_err(dev, "error enabling regulators (%d)\n", ret);
+ return ret;
+ }
+
+ mipi_dsi_dcs_exit_sleep_mode_multi(&ctx);
+ mipi_dsi_msleep(&ctx, 20);
+
+ mipi_dsi_dcs_set_display_on_multi(&ctx);
+ mipi_dsi_msleep(&ctx, 20);
+
+ return 0;
+}
+
+static int hv101hd1_disable(struct drm_panel *panel)
+{
+ struct hv101hd1 *hv = to_hv101hd1(panel);
+ struct mipi_dsi_multi_context ctx = { .dsi = hv->dsi };
+
+ mipi_dsi_dcs_set_display_off_multi(&ctx);
+ mipi_dsi_msleep(&ctx, 120);
+ mipi_dsi_dcs_enter_sleep_mode_multi(&ctx);
+ mipi_dsi_msleep(&ctx, 20);
+
+ return 0;
+}
+
+static int hv101hd1_unprepare(struct drm_panel *panel)
+{
+ struct hv101hd1 *hv = to_hv101hd1(panel);
+
+ return regulator_bulk_disable(ARRAY_SIZE(hv101hd1_supplies),
+ hv->supplies);
+}
+
+static const struct drm_display_mode hv101hd1_mode = {
+ .clock = (1366 + 74 + 36 + 24) * (768 + 21 + 7 + 4) * 60 / 1000,
+ .hdisplay = 1366,
+ .hsync_start = 1366 + 74,
+ .hsync_end = 1366 + 74 + 36,
+ .htotal = 1366 + 74 + 36 + 24,
+ .vdisplay = 768,
+ .vsync_start = 768 + 21,
+ .vsync_end = 768 + 21 + 7,
+ .vtotal = 768 + 21 + 7 + 4,
+ .width_mm = 140,
+ .height_mm = 220,
+};
+
+static int hv101hd1_get_modes(struct drm_panel *panel, struct drm_connector *connector)
+{
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(connector->dev, &hv101hd1_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 hv101hd1_panel_funcs = {
+ .prepare = hv101hd1_prepare,
+ .disable = hv101hd1_disable,
+ .unprepare = hv101hd1_unprepare,
+ .get_modes = hv101hd1_get_modes,
+};
+
+static int hv101hd1_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct hv101hd1 *hv;
+ int ret;
+
+ hv = devm_drm_panel_alloc(dev, struct hv101hd1, panel,
+ &hv101hd1_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ if (IS_ERR(hv))
+ return PTR_ERR(hv);
+
+ ret = devm_regulator_bulk_get_const(dev, ARRAY_SIZE(hv101hd1_supplies),
+ hv101hd1_supplies, &hv->supplies);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to get regulators\n");
+
+ hv->dsi = dsi;
+ mipi_dsi_set_drvdata(dsi, hv);
+
+ dsi->lanes = 2;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM;
+
+ ret = drm_panel_of_backlight(&hv->panel);
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to get backlight\n");
+
+ drm_panel_add(&hv->panel);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret) {
+ drm_panel_remove(&hv->panel);
+ return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
+ }
+
+ return 0;
+}
+
+static void hv101hd1_remove(struct mipi_dsi_device *dsi)
+{
+ struct hv101hd1 *hv = 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(&hv->panel);
+}
+
+static const struct of_device_id hv101hd1_of_match[] = {
+ { .compatible = "hydis,hv101hd1" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, hv101hd1_of_match);
+
+static struct mipi_dsi_driver hv101hd1_driver = {
+ .driver = {
+ .name = "panel-hv101hd1",
+ .of_match_table = hv101hd1_of_match,
+ },
+ .probe = hv101hd1_probe,
+ .remove = hv101hd1_remove,
+};
+module_mipi_dsi_driver(hv101hd1_driver);
+
+MODULE_AUTHOR("Svyatoslav Ryhel <clamor95 at gmail.com>");
+MODULE_DESCRIPTION("DRM driver for Hydis HV101HD1 panel");
+MODULE_LICENSE("GPL");
--
2.48.1
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