From: Chris Morgan <macromorgan@xxxxxxxxxxx>
The Powkiddy RGB30 4 inch panel is a 4 inch 720x720 DSI panel used in
the Powkiddy RGB30 handheld gaming device. Add support for it.
TODO: The panel seems to not resume properly from suspend. I've
confirmed on the other ST7703 based devices it works correctly.
Signed-off-by: Chris Morgan <macromorgan@xxxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-sitronix-st7703.c | 89 +++++++++++++++++++
1 file changed, 89 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
index 6a3945639535..a9892a4447fb 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
@@ -433,6 +433,94 @@ static const struct st7703_panel_desc rg353v2_desc = {
.init_sequence = rg353v2_init_sequence,
};
+static int rgb30panel_init_sequence(struct st7703 *ctx)
+{
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+
+ /* Init sequence extracted from Powkiddy RGB30 BSP kernel. */
+
+ /*
+ * For some reason this specific panel must be taken out of sleep
+ * before the full init sequence, or else it will not display.
+ */
+ mipi_dsi_dcs_exit_sleep_mode(dsi);
+ msleep(250);
+
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETEXTC, 0xf1, 0x12, 0x83);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETMIPI, 0x33, 0x81, 0x05, 0xf9,
+ 0x0e, 0x0e, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x44, 0x25, 0x00, 0x90, 0x0a, 0x00,
+ 0x00, 0x01, 0x4f, 0x01, 0x00, 0x00, 0x37);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER_EXT, 0x25, 0x22, 0xf0,
+ 0x63);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_UNKNOWN_BF, 0x02, 0x11, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETRGBIF, 0x10, 0x10, 0x28,
+ 0x28, 0x03, 0xff, 0x00, 0x00, 0x00, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETSCR, 0x73, 0x73, 0x50, 0x50,
+ 0x00, 0x00, 0x12, 0x70, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETVDC, 0x46);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0b);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETDISP, 0x3c, 0x12, 0x30);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETEQ, 0x07, 0x07, 0x0b, 0x0b,
+ 0x03, 0x0b, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00,
+ 0xc0, 0x10);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER, 0x36, 0x00, 0x32,
+ 0x32, 0x77, 0xf1, 0xcc, 0xcc, 0x77, 0x77, 0x33,
+ 0x33);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETBGP, 0x0a, 0x0a);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETVCOM, 0x88, 0x88);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP1, 0xc8, 0x10, 0x0a, 0x10,
+ 0x0f, 0xa1, 0x80, 0x12, 0x31, 0x23, 0x47, 0x86,
+ 0xa1, 0x80, 0x47, 0x08, 0x00, 0x00, 0x0d, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x00,
+ 0x48, 0x02, 0x8b, 0xaf, 0x46, 0x02, 0x88, 0x88,
+ 0x88, 0x88, 0x88, 0x48, 0x13, 0x8b, 0xaf, 0x57,
+ 0x13, 0x88, 0x88, 0x88, 0x88, 0x88, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP2, 0x96, 0x12, 0x01, 0x01,
+ 0x01, 0x78, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x4f, 0x31, 0x8b, 0xa8, 0x31, 0x75, 0x88, 0x88,
+ 0x88, 0x88, 0x88, 0x4f, 0x20, 0x8b, 0xa8, 0x20,
+ 0x64, 0x88, 0x88, 0x88, 0x88, 0x88, 0x23, 0x00,
+ 0x00, 0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x40, 0xa1, 0x80, 0x00, 0x00, 0x00,
+ 0x00);
+ mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGAMMA, 0x00, 0x0a, 0x0f,
+ 0x29, 0x3b, 0x3f, 0x42, 0x39, 0x06, 0x0d, 0x10,
+ 0x13, 0x15, 0x14, 0x15, 0x10, 0x17, 0x00, 0x0a,
+ 0x0f, 0x29, 0x3b, 0x3f, 0x42, 0x39, 0x06, 0x0d,
+ 0x10, 0x13, 0x15, 0x14, 0x15, 0x10, 0x17);
+
+ return 0;
+}
+
+static const struct drm_display_mode rgb30panel_mode = {
+ .hdisplay = 720,
+ .hsync_start = 720 + 45,
+ .hsync_end = 720 + 45 + 4,
+ .htotal = 720 + 45 + 4 + 45,
+ .vdisplay = 720,
+ .vsync_start = 720 + 15,
+ .vsync_end = 720 + 15 + 3,
+ .vtotal = 720 + 15 + 3 + 11,
+ .clock = 36570,
+ .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+ .width_mm = 76,
+ .height_mm = 76,
+};
+
+static const struct st7703_panel_desc rgb30panel_desc = {
+ .mode = &rgb30panel_mode,
+ .lanes = 4,
+ .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+ MIPI_DSI_MODE_NO_EOT_PACKET | MIPI_DSI_MODE_LPM,
+ .format = MIPI_DSI_FMT_RGB888,
+ .init_sequence = rgb30panel_init_sequence,
+};
+
static int st7703_enable(struct drm_panel *panel)
{
struct st7703 *ctx = panel_to_st7703(panel);
@@ -694,6 +782,7 @@ static void st7703_remove(struct mipi_dsi_device *dsi)
static const struct of_device_id st7703_of_match[] = {
{ .compatible = "anbernic,rg353v-panel-v2", .data = &rg353v2_desc },
+ { .compatible = "powkiddy,rgb30-panel", .data = &rgb30panel_desc },
{ .compatible = "rocktech,jh057n00900", .data = &jh057n00900_panel_desc },
{ .compatible = "xingbangda,xbd599", .data = &xbd599_desc },
{ /* sentinel */ }
--
2.34.1
