From: Klaus Goger <klaus.go...@theobroma-systems.com>
The LTK050H3148W-CTA6 is a 5.0" 720x1280 DSI display, whose driving
controller is a Himax HX8394-F, slightly different from LTK050H3146W by
its init sequence, mode details and mode flags.
Cc: Quentin Schulz <foss+ker...@0leil.net>
Signed-off-by: Klaus Goger <klaus.go...@theobroma-systems.com>
Signed-off-by: Quentin Schulz <quentin.sch...@theobroma-systems.com>
---
.../drm/panel/panel-leadtek-ltk050h3146w.c | 87 +++++++++++++++++++
1 file changed, 87 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
index 67eb474e28c6..3be815c3be68 100644
--- a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
+++ b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
@@ -253,6 +253,89 @@ struct ltk050h3146w *panel_to_ltk050h3146w(struct
drm_panel *panel)
return ret; \
} while (0)
+static int ltk050h3148w_init_sequence(struct ltk050h3146w *ctx)
+{
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+ int ret;
+
+ /*
+ * Init sequence was supplied by the panel vendor without much
+ * documentation.
+ */
+ dsi_dcs_write_seq(dsi, 0xb9, 0xff, 0x83, 0x94);
+ dsi_dcs_write_seq(dsi, 0xb1, 0x50, 0x15, 0x75, 0x09, 0x32, 0x44, 0x71,
+ 0x31, 0x55, 0x2f);
+ dsi_dcs_write_seq(dsi, 0xba, 0x63, 0x03, 0x68, 0x6b, 0xb2, 0xc0);
+ dsi_dcs_write_seq(dsi, 0xd2, 0x88);
+ dsi_dcs_write_seq(dsi, 0xb2, 0x00, 0x80, 0x64, 0x10, 0x07);
+ dsi_dcs_write_seq(dsi, 0xb4, 0x05, 0x70, 0x05, 0x70, 0x01, 0x70, 0x01,
+ 0x0c, 0x86, 0x75, 0x00, 0x3f, 0x01, 0x74, 0x01, 0x74,
+ 0x01, 0x74, 0x01, 0x0c, 0x86);
+ dsi_dcs_write_seq(dsi, 0xd3, 0x00, 0x00, 0x07, 0x07, 0x40, 0x1e, 0x08,
+ 0x00, 0x32, 0x10, 0x08, 0x00, 0x08, 0x54, 0x15, 0x10,
+ 0x05, 0x04, 0x02, 0x12, 0x10, 0x05, 0x07, 0x33, 0x34,
+ 0x0c, 0x0c, 0x37, 0x10, 0x07, 0x17, 0x11, 0x40);
+ dsi_dcs_write_seq(dsi, 0xd5, 0x19, 0x19, 0x18, 0x18, 0x1b, 0x1b, 0x1a,
+ 0x1a, 0x04, 0x05, 0x06, 0x07, 0x00, 0x01, 0x02, 0x03,
+ 0x20, 0x21, 0x18, 0x18, 0x22, 0x23, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18);
+ dsi_dcs_write_seq(dsi, 0xd6, 0x18, 0x18, 0x19, 0x19, 0x1b, 0x1b, 0x1a,
+ 0x1a, 0x03, 0x02, 0x01, 0x00, 0x07, 0x06, 0x05, 0x04,
+ 0x23, 0x22, 0x18, 0x18, 0x21, 0x20, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18);
+ dsi_dcs_write_seq(dsi, 0xe0, 0x00, 0x03, 0x09, 0x11, 0x11, 0x14, 0x18,
+ 0x16, 0x2e, 0x3d, 0x4d, 0x4d, 0x58, 0x6c, 0x72, 0x78,
+ 0x88, 0x8b, 0x86, 0xa4, 0xb2, 0x58, 0x55, 0x59, 0x5b,
+ 0x5d, 0x60, 0x64, 0x7f, 0x00, 0x03, 0x09, 0x0f, 0x11,
+ 0x14, 0x18, 0x16, 0x2e, 0x3d, 0x4d, 0x4d, 0x58, 0x6d,
+ 0x73, 0x78, 0x88, 0x8b, 0x87, 0xa5, 0xb2, 0x58, 0x55,
+ 0x58, 0x5b, 0x5d, 0x61, 0x65, 0x7f);
+ dsi_dcs_write_seq(dsi, 0xcc, 0x0b);
+ dsi_dcs_write_seq(dsi, 0xc0, 0x1f, 0x31);
+ dsi_dcs_write_seq(dsi, 0xb6, 0xc4, 0xc4);
+ dsi_dcs_write_seq(dsi, 0xbd, 0x01);
+ dsi_dcs_write_seq(dsi, 0xb1, 0x00);
+ dsi_dcs_write_seq(dsi, 0xbd, 0x00);
+ dsi_dcs_write_seq(dsi, 0xc6, 0xef);
+ dsi_dcs_write_seq(dsi, 0xd4, 0x02);
+ dsi_dcs_write_seq(dsi, 0x11);
+ dsi_dcs_write_seq(dsi, 0x29);
+
+ ret = mipi_dsi_dcs_set_tear_on(dsi, 1);
+ if (ret < 0) {
+ dev_err(ctx->dev, "failed to set tear on: %d\n", ret);
+ return ret;
+ }
+
+ msleep(60);
+
+ return 0;
+}
+
+static const struct drm_display_mode ltk050h3148w_mode = {
+ .hdisplay = 720,
+ .hsync_start = 720 + 12,
+ .hsync_end = 720 + 12 + 6,
+ .htotal = 720 + 12 + 6 + 24,
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 9,
+ .vsync_end = 1280 + 9 + 2,
+ .vtotal = 1280 + 9 + 2 + 16,
+ .clock = 59756,
+ .width_mm = 62,
+ .height_mm = 110,
+};
+
+static const struct ltk050h3146w_desc ltk050h3148w_data = {
+ .mode = <k050h3148w_mode,
+ .init = ltk050h3148w_init_sequence,
+ .mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE,
+};
+
static int ltk050h3146w_init_sequence(struct ltk050h3146w *ctx)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
@@ -657,6 +740,10 @@ static const struct of_device_id ltk050h3146w_of_match[] =
{
.compatible = "leadtek,ltk050h3146w-a2",
.data = <k050h3146w_a2_data,
},
+ {
+ .compatible = "leadtek,ltk050h3148w",
+ .data = <k050h3148w_data,
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, ltk050h3146w_of_match);
--
2.34.1
