RCORE RK3588 Module Support and Pocket A311D Support

linux/patches6.6/meson-g12b-bananapi-cm4-mnt-pocket-reform/0000-a311d-pocket-panel-fixup.patch

+diff --git a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
+index 81b4680..998e77b 100644
+--- a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
++++ b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
+@@ -145,9 +145,9 @@ static int jdi_panel_unprepare(struct drm_panel *panel)
+ 
+ 	gpiod_set_value(jdi->enable_gpio, 0);
+ 
+-	gpiod_set_value(jdi->reset_gpio, 1);
++	if (!IS_ERR(jdi->reset_gpio)) gpiod_set_value(jdi->reset_gpio, 1);
+ 
+-	gpiod_set_value(jdi->dcdc_en_gpio, 0);
++	if (!IS_ERR(jdi->dcdc_en_gpio)) gpiod_set_value(jdi->dcdc_en_gpio, 0);
+ 
+ 	jdi->prepared = false;
+ 
+@@ -171,10 +171,10 @@ static int jdi_panel_prepare(struct drm_panel *panel)
+ 
+ 	msleep(20);
+ 
+-	gpiod_set_value(jdi->dcdc_en_gpio, 1);
++	if (!IS_ERR(jdi->dcdc_en_gpio)) gpiod_set_value(jdi->dcdc_en_gpio, 1);
+ 	usleep_range(10, 20);
+ 
+-	gpiod_set_value(jdi->reset_gpio, 0);
++	if (!IS_ERR(jdi->reset_gpio)) gpiod_set_value(jdi->reset_gpio, 0);
+ 	usleep_range(10, 20);
+ 
+ 	gpiod_set_value(jdi->enable_gpio, 1);
+@@ -237,6 +237,15 @@ static int jdi_panel_get_modes(struct drm_panel *panel,
+ 		return -ENOMEM;
+ 	}
+ 
++	// on A311D, we shift the vsync by one line to counteract VIU_OSD_HOLD_FIFO_LINES
++	if (of_property_present(dev->of_node, "vsync-shift")) {
++		uint32_t vsync_shift = 0;
++		of_property_read_u32(dev->of_node, "vsync-shift", &vsync_shift);
++		dev_warn(dev, "vsync-shift from device tree: %d\n", vsync_shift);
++		mode->vsync_start += vsync_shift;
++		mode->vsync_end += vsync_shift;
++	}
++
+ 	drm_mode_set_name(mode);
+ 
+ 	drm_mode_probed_add(connector, mode);
+@@ -331,12 +340,12 @@ static int jdi_panel_add(struct jdi_panel *jdi)
+ 
+ 	jdi->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+ 	if (IS_ERR(jdi->reset_gpio))
+-		return dev_err_probe(dev, PTR_ERR(jdi->reset_gpio),
++		dev_err_probe(dev, PTR_ERR(jdi->reset_gpio),
+ 				     "cannot get reset-gpios %d\n", ret);
+ 
+ 	jdi->dcdc_en_gpio = devm_gpiod_get(dev, "dcdc-en", GPIOD_OUT_LOW);
+ 	if (IS_ERR(jdi->dcdc_en_gpio))
+-		return dev_err_probe(dev, PTR_ERR(jdi->dcdc_en_gpio),
++		dev_err_probe(dev, PTR_ERR(jdi->dcdc_en_gpio),
+ 				     "cannot get dcdc-en-gpio %d\n", ret);
+ 
+ 	jdi->backlight = drm_panel_create_dsi_backlight(jdi);
+@@ -365,7 +374,13 @@ static int jdi_panel_probe(struct mipi_dsi_device *dsi)
+ 
+ 	dsi->lanes = 4;
+ 	dsi->format = MIPI_DSI_FMT_RGB888;
+-	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_HSE;
++	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_HSE;
++
++	// on a311d it works only without burst, but imx8mplus needs burst mode
++	if (of_property_present(dsi->dev.of_node, "burst-mode")) {
++		dsi->mode_flags |= MIPI_DSI_MODE_VIDEO_BURST;
++		dev_warn(&dsi->dev, "DSI burst mode enabled via device tree\n");
++	}
+ 
+ 	jdi = devm_kzalloc(&dsi->dev, sizeof(*jdi), GFP_KERNEL);
+ 	if (!jdi)