[PATCH v6 0/2] drm: panel: support the R63419 based dual-DSI video mode Display Panels

[PATCH v6 0/2] drm: panel: support the R63419 based dual-DSI video mode Display Panels

[Neil Armstrong]

Add support for the Renesas 63419 based dual-DSI video mode
Display Panels found in the Ayaneo gaming handled devices.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
Changes in v6:
- Get new dt bindings review from Conor
- Properly init dsi_ctx
- Link to v5: https://patch.msgid.link/20260521-topic-sm8650-ayaneo-pocket-s2-r63419-v5-0-dd5700299390@linaro.org

Changes in v5:
- Import panel-common-dual.yaml in bindings
- Set reg as required
- fix bindings example typo
- Add helper to switch link in order to use single dsi_ctx to properly handle errors
- Disable vdd supplies if vcc supplied fail to enable
- Precise the power off sequence is recommended by the vendor spec
- Drop passing of node to second dsi to avoid re-probing the driver twice
- Link to v4: https://patch.msgid.link/20260519-topic-sm8650-ayaneo-pocket-s2-r63419-v4-0-b8929af5e951@linaro.org

Changes in v4:
- Moved height/width in the drm_mode, duplicated modes to use drm_connector_helper_get_modes_fixed
- Create dsi_info on the stack with proper OF node and name passed
- Switched to devm_drm_panel_add/devm_mipi_dsi_attach & dropped remove
- Link to v3: https://patch.msgid.link/20260504-topic-sm8650-ayaneo-pocket-s2-r63419-v3-0-9f61cf24aebf@linaro.org

Changes in v3:
- Added DDIC compatible as fallback
- Added rotation in bindings example
- Fixed bindings subject
- Added second MODULE_AUTHOR entry and re-ordered signed-off-by order
- Link to v2: https://patch.msgid.link/20260430-topic-sm8650-ayaneo-pocket-s2-r63419-v2-0-91ac10453d0c@linaro.org

Changes in v2:
- Add missing rotation property into bindings
- Fix commit message & subject typos
- Link to v1: https://patch.msgid.link/20260428-topic-sm8650-ayaneo-pocket-s2-r63419-v1-0-981eb5ab5a51@linaro.org

---
KancyJoe (1):
      drm: panel: add support for the Renesas R63419 based dual-DSI video mode Display Panels

Neil Armstrong (1):
      dt-bindings: display: panel: document the Renesas R63419 based dual-DSI video mode Display Panels

 .../bindings/display/panel/renesas,r63419.yaml     |  98 ++++++
 drivers/gpu/drm/panel/Kconfig                      |  12 +
 drivers/gpu/drm/panel/Makefile                     |   1 +
 drivers/gpu/drm/panel/panel-renesas-r63419.c       | 364 +++++++++++++++++++++
 4 files changed, 475 insertions(+)
---
base-commit: e98d21c170b01ddef366f023bbfcf6b31509fa83
change-id: 20260428-topic-sm8650-ayaneo-pocket-s2-r63419-e72467e2db0f

Best regards,
--  
Neil Armstrong <neil.armstrong@linaro.org>

[PATCH v6 1/2] dt-bindings: display: panel: document the Renesas R63419 based dual-DSI video mode Display Panels

[Neil Armstrong]

Document the Renesas R63419 based dual-DSI video mode Display Panels found
in the Ayaneo gaming handled devices.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 .../bindings/display/panel/renesas,r63419.yaml     | 98 ++++++++++++++++++++++
 1 file changed, 98 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/renesas,r63419.yaml b/Documentation/devicetree/bindings/display/panel/renesas,r63419.yaml
new file mode 100644
index 000000000000..adfdd2c300a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/renesas,r63419.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/renesas,r63419.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R63419 based dual-DSI video mode Display Panel
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+
+description:
+  The Renesas R63419 is a generic DDIC used to control dual-DSI LCD panels.
+
+allOf:
+  - $ref: panel-common-dual.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - ayaneo,wt0600-2k
+          - ayaneo,wt0630-2k
+      - const: renesas,r63419
+
+  reg:
+    maxItems: 1
+
+  vdd-supply: true
+  vddio-supply: true
+  vsp-supply: true
+  vsn-supply: true
+  vci-supply: true
+
+  backlight: true
+  reset-gpios: true
+  rotation: true
+  ports: true
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+  - vddio-supply
+  - vsp-supply
+  - vsn-supply
+  - vci-supply
+  - backlight
+  - reset-gpios
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "ayaneo,wt0600-2k", "renesas,r63419";
+            reg = <0>;
+
+            reset-gpios = <&gpio 176 GPIO_ACTIVE_LOW>;
+
+            vdd-supply = <&vdd_3v0_lcd>;
+            vddio-supply = <&vdd_1v8_io>;
+            vsn-supply = <&vdd_5v0_neg>;
+            vsp-supply = <&vdd_5v0_pos>;
+            vci-supply = <&vdd_3v0_vci>;
+
+            backlight = <&backlight>;
+
+            rotation = <90>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    panel_in0: endpoint {
+                        remote-endpoint = <&dsi0_out>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+                    panel_in1: endpoint {
+                        remote-endpoint = <&dsi1_out>;
+                    };
+                };
+            };
+        };
+    };
+...

-- 
2.34.1

Claude review: dt-bindings: display: panel: document the Renesas R63419 based dual-DSI video mode Display Panels

[Claude Code Review Bot]

Patch Review

**Status: Looks good.** Already Acked-by Conor Dooley.

The binding correctly extends `panel-common-dual.yaml#`, uses a two-item compatible list (panel-specific + DDIC fallback), and documents all five supply rails, reset GPIO, backlight, rotation, and dual ports. The example is well-formed.

One minor observation: "gaming handled devices" in the cover letter is a typo for "handheld" — but that's in the cover letter, not the committed patch.

No issues found.

---

---
Generated by Claude Code Patch Reviewer

[PATCH v6 2/2] drm: panel: add support for the Renesas R63419 based dual-DSI video mode Display Panels

[Neil Armstrong]

From: KancyJoe <kancy2333@outlook.com>

Implement support for the Renesas 63419 based dual-DSI video mode
Display Panels found in the Ayaneo gaming handled devices.

Signed-off-by: KancyJoe <kancy2333@outlook.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 drivers/gpu/drm/panel/Kconfig                |  12 +
 drivers/gpu/drm/panel/Makefile               |   1 +
 drivers/gpu/drm/panel/panel-renesas-r63419.c | 364 +++++++++++++++++++++++++++
 3 files changed, 377 insertions(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 7450b27622a2..7295246cfa58 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -796,6 +796,18 @@ config DRM_PANEL_RENESAS_R61307
 	  This panel controller can be found in LG Optimus Vu P895 smartphone
 	  in combination with LCD panel.
 
+config DRM_PANEL_RENESAS_R63419
+	tristate "Renesas R63419 dual-DSI video mode panels"
+	depends on OF && GPIOLIB
+	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  Say Y here if you want to enable support for Ayaneo WT0600 and WT0630
+	  1440x2560 60Hz dual-DSI video mode display panels with Renesas
+	  R63419 IC.
+
+	  These panels are used in Ayaneo handheld gaming devices.
+
 config DRM_PANEL_RENESAS_R69328
 	tristate "Renesas R69328 720x1280 DSI video mode panel"
 	depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index c2c5cf817116..be9a6f3c9743 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
 obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) += panel-raydium-rm692e5.o
 obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) += panel-raydium-rm69380.o
 obj-$(CONFIG_DRM_PANEL_RENESAS_R61307) += panel-renesas-r61307.o
+obj-$(CONFIG_DRM_PANEL_RENESAS_R63419) += panel-renesas-r63419.o
 obj-$(CONFIG_DRM_PANEL_RENESAS_R69328) += panel-renesas-r69328.o
 obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) += panel-ronbo-rb070d30.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_AMS581VF01) += panel-samsung-ams581vf01.o
diff --git a/drivers/gpu/drm/panel/panel-renesas-r63419.c b/drivers/gpu/drm/panel/panel-renesas-r63419.c
new file mode 100644
index 000000000000..dba156f8427c
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-renesas-r63419.c
@@ -0,0 +1,364 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * DRM driver for Renesas R63419 based dual-DSI video mode panels
+ *
+ * Copyright (c) 2025, Kancy Joe <kancy2333@outlook.com>
+ * Copyright (C) 2026 Linaro Limited
+ * Author: Neil Armstrong <neil.armstrong@linaro.org>
+ */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_connector.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_probe_helper.h>
+
+struct renesas_r63419_panel {
+	struct drm_panel panel;
+	struct mipi_dsi_device *dsi[2];
+	const struct panel_desc *desc;
+
+	struct gpio_desc *reset_gpio;
+	struct regulator_bulk_data *vdd_supplies;
+	struct regulator_bulk_data *vcc_supplies;
+	enum drm_panel_orientation orientation;
+};
+
+/* VDDIO/VDD Supplies */
+static const struct regulator_bulk_data renesas_r63419_vdd_supplies[] = {
+	{ .supply = "vddio" },
+	{ .supply = "vdd" },
+};
+
+/* VSP/VSN/VCI Supplies */
+static const struct regulator_bulk_data renesas_r63419_vcc_supplies[] = {
+	{ .supply = "vsp" },
+	{ .supply = "vsn" },
+	{ .supply = "vci" },
+};
+
+struct panel_desc {
+	const struct drm_display_mode *mode;
+	unsigned int lanes;
+	unsigned long mode_flags;
+	enum mipi_dsi_pixel_format format;
+	const struct mipi_dsi_device_info dsi_info;
+};
+
+static const struct drm_display_mode wt0600_mode = {
+	/* Dual dsi */
+	.clock = 2 * (720 + 100 + 8 + 40) * (2560 + 15 + 2 + 8) * 60 / 1000,
+	.hdisplay = 2 * 720,
+	.hsync_start = 2 * (720 + 100),
+	.hsync_end = 2 * (720 + 100 + 8),
+	.htotal = 2 * (720 + 100 + 8 + 40),
+	.vdisplay = 2560,
+	.vsync_start = 2560 + 15,
+	.vsync_end = 2560 + 15 + 2,
+	.vtotal = 2560 + 15 + 2 + 8,
+	.type = DRM_MODE_TYPE_DRIVER,
+	.width_mm = 74,
+	.height_mm = 131,
+};
+
+static const struct drm_display_mode wt0630_mode = {
+	/* Dual dsi */
+	.clock = 2 * (720 + 100 + 8 + 40) * (2560 + 15 + 2 + 8) * 60 / 1000,
+	.hdisplay = 2 * 720,
+	.hsync_start = 2 * (720 + 100),
+	.hsync_end = 2 * (720 + 100 + 8),
+	.htotal = 2 * (720 + 100 + 8 + 40),
+	.vdisplay = 2560,
+	.vsync_start = 2560 + 15,
+	.vsync_end = 2560 + 15 + 2,
+	.vtotal = 2560 + 15 + 2 + 8,
+	.type = DRM_MODE_TYPE_DRIVER,
+	.width_mm = 78,
+	.height_mm = 140,
+};
+
+static struct panel_desc wt0600_desc = {
+	.lanes = 4,
+	.mode = &wt0600_mode,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+		      MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM,
+	.format = MIPI_DSI_FMT_RGB888,
+};
+
+static struct panel_desc wt0630_desc = {
+	.lanes = 4,
+	.mode = &wt0630_mode,  /* wt0600 only has different screen size */
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+		      MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM,
+	.format = MIPI_DSI_FMT_RGB888,
+};
+
+static inline struct renesas_r63419_panel *
+to_renesas_r63419_panel(struct drm_panel *panel)
+{
+	return container_of(panel, struct renesas_r63419_panel, panel);
+}
+
+/*
+ * Helper to switch between DSI links, so we share a single dsi_ctx
+ * for both links, so in case of an error all writes & sleep for
+ * both links are ignored.
+ */
+static inline void dsi_link_switch(struct renesas_r63419_panel *ctx,
+				   struct mipi_dsi_multi_context *dsi_ctx,
+				   unsigned int link)
+{
+	dsi_ctx->dsi = ctx->dsi[link];
+}
+
+static int renesas_r63419_on(struct renesas_r63419_panel *ctx)
+{
+	struct mipi_dsi_multi_context dsi_ctx = { 0 };
+
+	dsi_link_switch(ctx, &dsi_ctx, 0);
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+	dsi_link_switch(ctx, &dsi_ctx, 1);
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 150);
+
+	dsi_link_switch(ctx, &dsi_ctx, 0);
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+	dsi_link_switch(ctx, &dsi_ctx, 1);
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 50);
+
+	return dsi_ctx.accum_err;
+}
+
+static int renesas_r63419_disable(struct drm_panel *panel)
+{
+	struct renesas_r63419_panel *ctx = to_renesas_r63419_panel(panel);
+	struct mipi_dsi_multi_context dsi_ctx = { 0 };
+
+	dsi_link_switch(ctx, &dsi_ctx, 0);
+	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+	dsi_link_switch(ctx, &dsi_ctx, 1);
+	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 50);
+
+	dsi_link_switch(ctx, &dsi_ctx, 0);
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+	dsi_link_switch(ctx, &dsi_ctx, 1);
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 120);
+
+	return dsi_ctx.accum_err;
+}
+
+static int renesas_r63419_prepare(struct drm_panel *panel)
+{
+	struct renesas_r63419_panel *ctx = to_renesas_r63419_panel(panel);
+	int ret;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(renesas_r63419_vdd_supplies),
+				    ctx->vdd_supplies);
+	if (ret < 0)
+		return ret;
+
+	usleep_range(1000, 2000);
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(renesas_r63419_vcc_supplies),
+				    ctx->vcc_supplies);
+	if (ret < 0) {
+		regulator_bulk_disable(ARRAY_SIZE(renesas_r63419_vdd_supplies),
+				       ctx->vdd_supplies);
+		return ret;
+	}
+
+	usleep_range(1000, 2000);
+
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+
+	usleep_range(3000, 4000);
+
+	ret = renesas_r63419_on(ctx);
+	if (ret < 0) {
+		dev_err(panel->dev, "Failed to initialize panel: %d\n", ret);
+
+		/* Power off sequence from the r63419 datasheet */
+		regulator_bulk_disable(ARRAY_SIZE(renesas_r63419_vcc_supplies),
+				       ctx->vcc_supplies);
+		regulator_bulk_disable(ARRAY_SIZE(renesas_r63419_vdd_supplies),
+				       ctx->vdd_supplies);
+
+		gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+
+		return ret;
+	}
+
+	return 0;
+}
+
+static int renesas_r63419_unprepare(struct drm_panel *panel)
+{
+	struct renesas_r63419_panel *ctx = to_renesas_r63419_panel(panel);
+
+	/* Power off sequence from the r63419 datasheet */
+	regulator_bulk_disable(ARRAY_SIZE(renesas_r63419_vcc_supplies), ctx->vcc_supplies);
+	regulator_bulk_disable(ARRAY_SIZE(renesas_r63419_vdd_supplies), ctx->vdd_supplies);
+
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+
+	return 0;
+}
+
+static int renesas_r63419_get_modes(struct drm_panel *panel,
+				    struct drm_connector *connector)
+{
+	struct renesas_r63419_panel *ctx = to_renesas_r63419_panel(panel);
+	const struct drm_display_mode *mode = ctx->desc->mode;
+
+	drm_connector_set_panel_orientation(connector, ctx->orientation);
+
+	return drm_connector_helper_get_modes_fixed(connector, mode);
+}
+
+static enum drm_panel_orientation
+renesas_r63419_get_orientation(struct drm_panel *panel)
+{
+	struct renesas_r63419_panel *ctx = to_renesas_r63419_panel(panel);
+
+	return ctx->orientation;
+}
+
+static const struct drm_panel_funcs renesas_r63419_panel_funcs = {
+	.disable = renesas_r63419_disable,
+	.prepare = renesas_r63419_prepare,
+	.unprepare = renesas_r63419_unprepare,
+	.get_modes = renesas_r63419_get_modes,
+	.get_orientation = renesas_r63419_get_orientation,
+};
+
+static int renesas_r63419_probe(struct mipi_dsi_device *dsi)
+{
+	struct mipi_dsi_device_info info = { };
+	struct device *dev = &dsi->dev;
+	struct renesas_r63419_panel *ctx;
+	struct device_node *dsi1_node;
+	struct mipi_dsi_host *dsi1_host;
+	int ret, i;
+
+	ctx = devm_drm_panel_alloc(dev, struct renesas_r63419_panel, panel,
+				   &renesas_r63419_panel_funcs, DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
+
+	ctx->desc = of_device_get_match_data(dev);
+	if (!ctx->desc)
+		return dev_err_probe(dev, -ENODEV,
+				     "Failed to get panel description\n");
+
+	ret = devm_regulator_bulk_get_const(&dsi->dev,
+					    ARRAY_SIZE(renesas_r63419_vdd_supplies),
+					    renesas_r63419_vdd_supplies, &ctx->vdd_supplies);
+	if (ret < 0)
+		return ret;
+
+	ret = devm_regulator_bulk_get_const(&dsi->dev,
+					    ARRAY_SIZE(renesas_r63419_vcc_supplies),
+					    renesas_r63419_vcc_supplies, &ctx->vcc_supplies);
+	if (ret < 0)
+		return ret;
+
+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ctx->reset_gpio))
+		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
+				     "Failed to get reset gpio\n");
+
+	/* Get second DSI host */
+	dsi1_node = of_graph_get_remote_node(dsi->dev.of_node, 1, -1);
+	if (!dsi1_node)
+		return dev_err_probe(dev, -ENODEV,
+				     "Failed to get remote node for second DSI\n");
+
+	dsi1_host = of_find_mipi_dsi_host_by_node(dsi1_node);
+	of_node_put(dsi1_node);
+	if (!dsi1_host)
+		return dev_err_probe(dev, -EPROBE_DEFER,
+				     "Failed to find second DSI host\n");
+
+	/* Copy current DSI info, do not provide OF node since no driver needs to be attached */
+	strscpy(info.type, dsi->name, sizeof(info.type));
+	info.channel = dsi->channel;
+
+	/* Register the second DSI device */
+	ctx->dsi[1] = devm_mipi_dsi_device_register_full(dev, dsi1_host, &info);
+	if (IS_ERR(ctx->dsi[1]))
+		return dev_err_probe(dev, PTR_ERR(ctx->dsi[1]),
+				     "Failed to register second DSI device\n");
+
+	ctx->dsi[0] = dsi;
+	mipi_dsi_set_drvdata(dsi, ctx);
+
+	/* Get panel orientation */
+	ret = of_drm_get_panel_orientation(dev->of_node, &ctx->orientation);
+	if (ret < 0 && ret != -ENODEV)
+		return dev_err_probe(dev, ret,
+				     "Failed to get panel orientation\n");
+
+	ctx->panel.prepare_prev_first = true;
+
+	ret = drm_panel_of_backlight(&ctx->panel);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get backlight\n");
+
+	ret = devm_drm_panel_add(dev, &ctx->panel);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to add panel\n");
+
+	/* Configure and attach both DSI devices */
+	for (i = 0; i < ARRAY_SIZE(ctx->dsi); i++) {
+		ctx->dsi[i]->lanes = ctx->desc->lanes;
+		ctx->dsi[i]->format = ctx->desc->format;
+		ctx->dsi[i]->mode_flags = ctx->desc->mode_flags;
+
+		ret = devm_mipi_dsi_attach(dev, ctx->dsi[i]);
+		if (ret < 0)
+			return dev_err_probe(dev, ret,
+					     "Failed to attach DSI device %d\n", i);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id renesas_r63419_of_match[] = {
+	{
+		.compatible = "ayaneo,wt0600-2k",
+		.data = &wt0600_desc,
+	},
+	{
+		.compatible = "ayaneo,wt0630-2k",
+		.data = &wt0630_desc,
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, renesas_r63419_of_match);
+
+static struct mipi_dsi_driver renesas_r63419_driver = {
+	.probe = renesas_r63419_probe,
+	.driver = {
+		.name = "panel-renesas-r63419",
+		.of_match_table = renesas_r63419_of_match,
+	},
+};
+module_mipi_dsi_driver(renesas_r63419_driver);
+
+MODULE_AUTHOR("Kancy Joe <kancy2333@outlook.com>");
+MODULE_AUTHOR("Neil Armstrong <neil.armstrong@linaro.org>");
+MODULE_DESCRIPTION("DRM driver for Renesas R63419 based dual-DSI video mode panels");
+MODULE_LICENSE("GPL");

-- 
2.34.1

Claude review: drm: panel: add support for the Renesas R63419 based dual-DSI video mode Display Panels

[Claude Code Review Bot]

Patch Review

**Overall: Good, minor issues only.**

**Issue 1 (minor): `wt0600_desc` and `wt0630_desc` should be `const`**

```c
static struct panel_desc wt0600_desc = {
```
```c
static struct panel_desc wt0630_desc = {
```

These are only ever read via `of_device_get_match_data()` and never modified. Every other panel driver in the tree declares its descriptor structs as `static const`. These should be:

```c
static const struct panel_desc wt0600_desc = {
```

**Issue 2 (minor): Dead `dsi_info` field in `struct panel_desc`**

```c
struct panel_desc {
	const struct drm_display_mode *mode;
	unsigned int lanes;
	unsigned long mode_flags;
	enum mipi_dsi_pixel_format format;
	const struct mipi_dsi_device_info dsi_info;
};
```

The `dsi_info` field is declared in the struct but never initialized in either `wt0600_desc` or `wt0630_desc`, and never referenced anywhere. The probe function creates its own `struct mipi_dsi_device_info info = { }` on the stack instead. This appears to be a leftover from an earlier revision. It should be removed.

**Issue 3 (observation, not a bug): Display-on before exit-sleep ordering**

```c
static int renesas_r63419_on(struct renesas_r63419_panel *ctx)
{
	struct mipi_dsi_multi_context dsi_ctx = { 0 };

	dsi_link_switch(ctx, &dsi_ctx, 0);
	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
	dsi_link_switch(ctx, &dsi_ctx, 1);
	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
	mipi_dsi_msleep(&dsi_ctx, 150);

	dsi_link_switch(ctx, &dsi_ctx, 0);
	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
	dsi_link_switch(ctx, &dsi_ctx, 1);
	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
	mipi_dsi_msleep(&dsi_ctx, 50);

	return dsi_ctx.accum_err;
}
```

This sends `SET_DISPLAY_ON` before `EXIT_SLEEP_MODE`, which is the opposite of the typical MIPI DCS sequence (where the panel is brought out of sleep first, then display is enabled). If this is what the R63419 vendor spec requires, it's fine — but it's worth a double-check since it's unusual. Most panel drivers do `exit_sleep → delay → display_on`.

**No other issues.** The rest of the driver is solid:

- The `dsi_link_switch` helper pattern for sharing a single `mipi_dsi_multi_context` across both DSI links is a clean approach for error accumulation.
- Regulator error handling in `renesas_r63419_prepare()` correctly disables VDD supplies when VCC enable fails.
- The power-off sequence in `unprepare` correctly reverses the power-on order (VCC then VDD).
- Reset GPIO polarity (`GPIOD_OUT_HIGH` → active/asserted at probe, deasserted with `0` in prepare) is correct for active-low reset.
- Use of `devm_regulator_bulk_get_const()` with separate VDD and VCC arrays matches the need for sequenced power-on.
- `prepare_prev_first = true` is appropriate for DSI panels that need the host initialized before the panel.
- All devm APIs are used correctly, making a `remove` function unnecessary.

---
Generated by Claude Code Patch Reviewer

Claude review: drm: panel: support the R63419 based dual-DSI video mode Display Panels

[Claude Code Review Bot]

Overall Series Review

Subject: drm: panel: support the R63419 based dual-DSI video mode Display Panels
Author: Neil Armstrong <neil.armstrong@linaro.org>
Patches: 3
Reviewed: 2026-05-25T18:37:55.804169

---

This is a v6 of a 2-patch series from Neil Armstrong (Linaro), with the driver originally authored by KancyJoe, adding support for Renesas R63419-based dual-DSI video mode display panels found in Ayaneo handheld gaming devices. The series consists of a DT binding document and a panel driver.

The code is well-structured and follows established dual-DSI panel driver patterns (closely matching `panel-raydium-rm69380.c`). The use of `mipi_dsi_multi_context` with a `dsi_link_switch` helper for error accumulation across both DSI links is clean. The driver uses modern `devm_*` APIs throughout, avoiding the need for a `remove` function. The DT binding is based on `panel-common-dual.yaml` and already has an Ack from the DT maintainer.

There are only minor issues remaining — no blocking problems.

---
Generated by Claude Code Patch Reviewer

[PATCH v5 0/2] drm: panel: support the R63419 based dual-DSI video mode Display Panels

[Neil Armstrong]

Add support for the Renesas 63419 based dual-DSI video mode
Display Panels found in the Ayaneo gaming handled devices.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
Changes in v5:
- Import panel-common-dual.yaml in bindings
- Set reg as required
- fix bindings example typo
- Add helper to switch link in order to use single dsi_ctx to properly handle errors
- Disable vdd supplies if vcc supplied fail to enable
- Precise the power off sequence is recommended by the vendor spec
- Drop passing of node to second dsi to avoid re-probing the driver twice
- Link to v4: https://patch.msgid.link/20260519-topic-sm8650-ayaneo-pocket-s2-r63419-v4-0-b8929af5e951@linaro.org

Changes in v4:
- Moved height/width in the drm_mode, duplicated modes to use drm_connector_helper_get_modes_fixed
- Create dsi_info on the stack with proper OF node and name passed
- Switched to devm_drm_panel_add/devm_mipi_dsi_attach & dropped remove
- Link to v3: https://patch.msgid.link/20260504-topic-sm8650-ayaneo-pocket-s2-r63419-v3-0-9f61cf24aebf@linaro.org

Changes in v3:
- Added DDIC compatible as fallback
- Added rotation in bindings example
- Fixed bindings subject
- Added second MODULE_AUTHOR entry and re-ordered signed-off-by order
- Link to v2: https://patch.msgid.link/20260430-topic-sm8650-ayaneo-pocket-s2-r63419-v2-0-91ac10453d0c@linaro.org

Changes in v2:
- Add missing rotation property into bindings
- Fix commit message & subject typos
- Link to v1: https://patch.msgid.link/20260428-topic-sm8650-ayaneo-pocket-s2-r63419-v1-0-981eb5ab5a51@linaro.org

---
KancyJoe (1):
      drm: panel: add support for the Renesas R63419 based dual-DSI video mode Display Panels

Neil Armstrong (1):
      dt-bindings: display: panel: document the Renesas R63419 based dual-DSI video mode Display Panels

 .../bindings/display/panel/renesas,r63419.yaml     |  98 ++++++
 drivers/gpu/drm/panel/Kconfig                      |  12 +
 drivers/gpu/drm/panel/Makefile                     |   1 +
 drivers/gpu/drm/panel/panel-renesas-r63419.c       | 364 +++++++++++++++++++++
 4 files changed, 475 insertions(+)
---
base-commit: e98d21c170b01ddef366f023bbfcf6b31509fa83
change-id: 20260428-topic-sm8650-ayaneo-pocket-s2-r63419-e72467e2db0f

Best regards,
--  
Neil Armstrong <neil.armstrong@linaro.org>

Claude review: drm: panel: support the R63419 based dual-DSI video mode Display Panels

[Claude Code Review Bot]

Overall Series Review

Subject: drm: panel: support the R63419 based dual-DSI video mode Display Panels
Author: Neil Armstrong <neil.armstrong@linaro.org>
Patches: 4
Reviewed: 2026-05-25T20:36:17.259091

---

This is a clean, well-structured v5 series adding support for Renesas R63419 based dual-DSI panels used in Ayaneo gaming handhelds. The DT binding is straightforward and properly references `panel-common-dual.yaml`. The driver follows modern patterns (`devm_drm_panel_alloc`, `devm_mipi_dsi_attach`, `devm_drm_panel_add`, `mipi_dsi_multi_context`). The cover letter shows good iteration addressing reviewer feedback over 5 revisions.

There is **one real bug** (uninitialized `accum_err`), one const-correctness issue, and a few minor observations.

---

---
Generated by Claude Code Patch Reviewer

[PATCH v3 0/2] drm: panel: support the R63419 based dual-DSI video mode Display Panels

[Neil Armstrong]

Add support for the Renesas 63419 based dual-DSI video mode
Display Panels found in the Ayaneo gaming handled devices.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
Changes in v3:
- Added DDIC compatible as fallback
- Added rotation in bindings example
- Fixed bindings subject
- Added second MODULE_AUTHOR entry and re-ordered signed-off-by order
- Link to v2: https://patch.msgid.link/20260430-topic-sm8650-ayaneo-pocket-s2-r63419-v2-0-91ac10453d0c@linaro.org

Changes in v2:
- Add missing rotation property into bindings
- Fix commit message & subject typos
- Link to v1: https://patch.msgid.link/20260428-topic-sm8650-ayaneo-pocket-s2-r63419-v1-0-981eb5ab5a51@linaro.org

---
KancyJoe (1):
      drm: panel: add support for the Renesas R63419 based dual-DSI video mode Display Panels

Neil Armstrong (1):
      dt-bindings: display: panel: document the Renesas R63419 based dual-DSI video mode Display Panels

 .../bindings/display/panel/renesas,r63419.yaml     |  97 ++++++
 drivers/gpu/drm/panel/Kconfig                      |  12 +
 drivers/gpu/drm/panel/Makefile                     |   1 +
 drivers/gpu/drm/panel/panel-renesas-r63419.c       | 357 +++++++++++++++++++++
 4 files changed, 467 insertions(+)
---
base-commit: 39704f00f747aba3144289870b5fd8ac230a9aaf
change-id: 20260428-topic-sm8650-ayaneo-pocket-s2-r63419-e72467e2db0f

Best regards,
--  
Neil Armstrong <neil.armstrong@linaro.org>

Claude review: drm: panel: support the R63419 based dual-DSI video mode Display Panels

[Claude Code Review Bot]

Overall Series Review

Subject: drm: panel: support the R63419 based dual-DSI video mode Display Panels
Author: Neil Armstrong <neil.armstrong@linaro.org>
Patches: 3
Reviewed: 2026-05-05T08:29:49.895264

---

This is a 2-patch series by Neil Armstrong (with driver code from KancyJoe) adding support for Renesas R63419-based dual-DSI video mode panels found in Ayaneo handheld gaming devices. The series consists of a DT binding (patch 1) and a panel driver (patch 2).

The overall structure is clean and follows modern panel driver conventions (uses `devm_drm_panel_alloc`, `mipi_dsi_multi_context`, `devm_regulator_bulk_get_const`, etc.). However, there are a few issues worth addressing:

**Key issues:**
1. The DSI init sequence sends display-on *before* exit-sleep-mode, which is reversed from the standard MIPI DCS order and from what other panel drivers do.
2. The dual-DSI error handling uses two separate `mipi_dsi_multi_context` structs but only checks `accum_err` from the first one — errors on the second DSI link are silently lost. The existing `mipi_dsi_dual()` macro solves this correctly.
3. The panel descriptors should be `const`.
4. The DT binding example has vsp/vsn supply names that appear swapped.

---

---
Generated by Claude Code Patch Reviewer

[PATCH v2 0/2] drm: panel: support the R63419 based dual-DSI video mode Display Panels

[Neil Armstrong]

Add support for the Renesas 63419 based dual-DSI video mode
Display Panels found in the Ayaneo gaming handled devices.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
Changes in v2:
- Add missing rotation property into bindings
- Fix commit message & subject typos
- Link to v1: https://patch.msgid.link/20260428-topic-sm8650-ayaneo-pocket-s2-r63419-v1-0-981eb5ab5a51@linaro.org

---
KancyJoe (1):
      drm: panel: add support for the Renesas R63419 based dual-DSI video mode Display Panels

Neil Armstrong (1):
      dt-bindings: regulator: document the Renesas R63419 based dual-DSI video mode Display Panels

 .../bindings/display/panel/renesas,r63419.yaml     |  93 ++++++
 drivers/gpu/drm/panel/Kconfig                      |  12 +
 drivers/gpu/drm/panel/Makefile                     |   1 +
 drivers/gpu/drm/panel/panel-renesas-r63419.c       | 356 +++++++++++++++++++++
 4 files changed, 462 insertions(+)
---
base-commit: 39704f00f747aba3144289870b5fd8ac230a9aaf
change-id: 20260428-topic-sm8650-ayaneo-pocket-s2-r63419-e72467e2db0f

Best regards,
--  
Neil Armstrong <neil.armstrong@linaro.org>

Claude review: drm: panel: support the R63419 based dual-DSI video mode Display Panels

[Claude Code Review Bot]

Overall Series Review

Subject: drm: panel: support the R63419 based dual-DSI video mode Display Panels
Author: Neil Armstrong <neil.armstrong@linaro.org>
Patches: 5
Reviewed: 2026-05-05T10:27:00.422343

---

This is a 2-patch series adding a new dual-DSI panel driver for the Renesas R63419 DDIC, used in Ayaneo handheld gaming devices. The series adds a DT binding (patch 1) and the panel driver (patch 2). The structure follows established dual-DSI panel driver patterns in the kernel (similar to `panel-sharp-lq079l1sx01.c` and `panel-himax-hx83121a.c`), and uses modern APIs like `devm_drm_panel_alloc` and `devm_regulator_bulk_get_const`.

However, there are several issues ranging from a critical MIPI DCS spec violation (incorrect command ordering) to cleanup path bugs and binding concerns.

**Key issues:**
1. **MIPI DCS command ordering is reversed** — `SET_DISPLAY_ON` is sent before `EXIT_SLEEP_MODE`, violating the MIPI DCS spec.
2. **Second DSI context errors are silently dropped** in both enable and disable paths.
3. **Should use `devm_mipi_dsi_attach()`** — the manual `mipi_dsi_attach()` has an incomplete cleanup path.
4. **DT binding subject line says "regulator"** instead of "display".
5. **DT binding should reference `panel-common-dual.yaml#`** for proper dual-DSI port schema validation.

---

---
Generated by Claude Code Patch Reviewer