From nobody Thu Apr 9 13:33:30 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F923410D2C for ; Mon, 2 Mar 2026 16:10:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772467858; cv=none; b=Djy54hKAzx1Ukik2XLnbRzCDQ3m9gktF79V18LeHURZ8Gal3xY0QEmlpTFsbknus3IQmTS+6wMS9IBILUkXVksoramL1ACkjKi7GbZAxG83TSHXBv4Mb94Pi5GvrqXDuTNWGGGrSFQ3hD0qQGCiFNFFGzwHMYC8b+Q+J7Za/brU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772467858; c=relaxed/simple; bh=HNnYTYeqtUJK7imR9VkaOm1MgzY2HTckguPC7uZh9LE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=MIDOfjIV3tXMYB74VaoM7VhzLTVmgE6WrEwK12RV1wxDdiOyHlxREyyN2egvfBb2pA3DT+S3zbcrzpWSb5RI6F7btq3i9fAJ3ySN8ma0/DdgFAxmDQqLm3ZO4SSIf9PuewbO3dxhNac4TKwyfCoebsj6R71pa5cg+plS4fBrGNQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1vx5rC-0002vi-Fe; Mon, 02 Mar 2026 17:10:54 +0100 From: Marco Felsch Date: Mon, 02 Mar 2026 17:10:40 +0100 Subject: [PATCH v10 1/3] dt-bindings: soc: imx93-media-blk-ctrl: Add PDFC subnode to schema and example Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260302-v6-18-topic-imx93-parallel-display-v10-1-634fe2778c7a@pengutronix.de> References: <20260302-v6-18-topic-imx93-parallel-display-v10-0-634fe2778c7a@pengutronix.de> In-Reply-To: <20260302-v6-18-topic-imx93-parallel-display-v10-0-634fe2778c7a@pengutronix.de> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Peng Fan , Liu Ying , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , luca.ceresoli@bootlin.com Cc: devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de, Marco Felsch X-Mailer: b4 0.14.2 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::28 X-SA-Exim-Mail-From: m.felsch@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org From: Liu Ying i.MX93 SoC mediamix blk-ctrl contains one DISPLAY_MUX register which configures parallel display format by using the "PARALLEL_DISP_FORMAT" field. Document the Parallel Display Format Configuration(PDFC) subnode and add the subnode to example. Reviewed-by: Rob Herring (Arm) Signed-off-by: Liu Ying [m.felsch@pengutronix.de: port to v7.0-rc1] [m.felsch@pengutronix.de: add bus-width] Signed-off-by: Marco Felsch --- .../bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml | 78 ++++++++++++++++++= ++++ 1 file changed, 78 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-= ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-c= trl.yaml index 34aea58094e55365a2f9c86092f637e533f954ff..d828c2e82965c7a4cd69a671360= 47d83c96b0a35 100644 --- a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.ya= ml +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.ya= ml @@ -40,6 +40,58 @@ properties: minItems: 8 maxItems: 10 =20 + dpi-bridge: + type: object + additionalProperties: false + + properties: + compatible: + enum: + - nxp,imx91-pdfc + - nxp,imx93-pdfc + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Input port node to receive pixel data. + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Output port node to downstream pixel data receive= rs. + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + properties: + bus-width: + enum: [ 16, 18, 24 ] + description: + Specify the physical parallel bus width. + + This property is optional if the display bus-width + matches the SoC bus-width, e.g. a 18-bit RGB666 (dis= play) + is connected and all 18-bit data lines are muxed to = the + parallel-output pads. + + This property must be set to 18 to cut only the LSBs + instead of the MSBs in case a 24-bit RGB888 display = is + connected and only the lower 18-bit data lanes are m= uxed + to the parallel-output pads. + + required: + - port@0 + - port@1 + + required: + - compatible + - ports + allOf: - if: properties: @@ -112,4 +164,30 @@ examples: clock-names =3D "apb", "axi", "nic", "disp", "cam", "pxp", "lcdif", "isi", "csi", "dsi"; #power-domain-cells =3D <1>; + + dpi-bridge { + compatible =3D "nxp,imx93-pdfc"; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + pdfc_from_lcdif: endpoint { + remote-endpoint =3D <&lcdif_to_pdfc>; + }; + }; + + port@1 { + reg =3D <1>; + + pdfc_to_panel: endpoint { + remote-endpoint =3D <&panel_from_pdfc>; + bus-width =3D <18>; + }; + }; + }; + }; }; --=20 2.47.3 From nobody Thu Apr 9 13:33:30 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4FA1F41160F for ; Mon, 2 Mar 2026 16:10:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772467859; cv=none; b=UdbqyxaqIUMaI9Rm7+yNNfs4RuUuwCYriveJhZzfAEzWXh1m0Nh+qNJBwP4eMa3L7UGepfRz381BCHRoAxfYIH08h728FfPcA+f1OK7/JzLkhofHVTlp4g6yF3SYgbx9iKFG84WDhfLHLxm7kLIurL/2oQCrNkQHjkQEFJCNEho= ARC-Message-Signature: i=1; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260302-v6-18-topic-imx93-parallel-display-v10-2-634fe2778c7a@pengutronix.de> References: <20260302-v6-18-topic-imx93-parallel-display-v10-0-634fe2778c7a@pengutronix.de> In-Reply-To: <20260302-v6-18-topic-imx93-parallel-display-v10-0-634fe2778c7a@pengutronix.de> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Peng Fan , Liu Ying , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , luca.ceresoli@bootlin.com Cc: devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de, Marco Felsch X-Mailer: b4 0.14.2 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::28 X-SA-Exim-Mail-From: m.felsch@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org From: Liu Ying NXP i.MX93 mediamix blk-ctrl contains one DISPLAY_MUX register which configures parallel display format by using the "PARALLEL_DISP_FORMAT" field. Add a DRM bridge driver to support the display format configuration. Signed-off-by: Liu Ying [m.felsch@pengutronix.de: port to v7.0-rc1] [m.felsch@pengutronix.de: add review feedback (Alexander)] [m.felsch@pengutronix.de: fix to short Kconfig description (checkpath)] [m.felsch@pengutronix.de: use "GPL" instead of "GPL v2" (checkpatch)] [m.felsch@pengutronix.de: add bus-width support] Signed-off-by: Marco Felsch --- drivers/gpu/drm/bridge/imx/Kconfig | 11 ++ drivers/gpu/drm/bridge/imx/Makefile | 1 + drivers/gpu/drm/bridge/imx/imx93-pdfc.c | 225 ++++++++++++++++++++++++++++= ++++ 3 files changed, 237 insertions(+) diff --git a/drivers/gpu/drm/bridge/imx/Kconfig b/drivers/gpu/drm/bridge/im= x/Kconfig index b9028a5e5a065c3237b404111d8df57e8e017f9d..47829300a4486a090514ebe914b= 7667a703039a9 100644 --- a/drivers/gpu/drm/bridge/imx/Kconfig +++ b/drivers/gpu/drm/bridge/imx/Kconfig @@ -99,4 +99,15 @@ config DRM_IMX93_MIPI_DSI Choose this to enable MIPI DSI controller found in Freescale i.MX93 processor. =20 +config DRM_IMX93_PARALLEL_DISP_FMT_CONVERTER + tristate "NXP i.MX91/i.MX93 parallel display format converter" + depends on OF + select DRM_KMS_HELPER + help + On i.MX93 and i.MX91 SoCs the parallel display format output is + controlled via the MEDIAMIX BLK-CTRL DISPLAY_MUX. + + Say 'Y' or 'M' if you use the parallel display output path on a + i.MX93 or i.MX91 SoC. + endif # ARCH_MXC || COMPILE_TEST diff --git a/drivers/gpu/drm/bridge/imx/Makefile b/drivers/gpu/drm/bridge/i= mx/Makefile index 8d01fda25451aaa1bf51a068da18948094327116..da57fde2d813b88cdde89115ca8= 01b4cfc69afbd 100644 --- a/drivers/gpu/drm/bridge/imx/Makefile +++ b/drivers/gpu/drm/bridge/imx/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_DRM_IMX8QXP_PIXEL_COMBINER) +=3D imx8qxp-pixel= -combiner.o obj-$(CONFIG_DRM_IMX8QXP_PIXEL_LINK) +=3D imx8qxp-pixel-link.o obj-$(CONFIG_DRM_IMX8QXP_PIXEL_LINK_TO_DPI) +=3D imx8qxp-pxl2dpi.o obj-$(CONFIG_DRM_IMX93_MIPI_DSI) +=3D imx93-mipi-dsi.o +obj-$(CONFIG_DRM_IMX93_PARALLEL_DISP_FMT_CONVERTER) +=3D imx93-pdfc.o diff --git a/drivers/gpu/drm/bridge/imx/imx93-pdfc.c b/drivers/gpu/drm/brid= ge/imx/imx93-pdfc.c new file mode 100644 index 0000000000000000000000000000000000000000..56698168a66bf716762a139b6fe= a318bf450f6b5 --- /dev/null +++ b/drivers/gpu/drm/bridge/imx/imx93-pdfc.c @@ -0,0 +1,225 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Copyright 2022-2025 NXP + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define IMX93_DISPLAY_MUX_REG 0x60 +#define PARALLEL_DISP_FORMAT GENMASK(10, 8) +#define FORMAT_RGB888_TO_RGB888 FIELD_PREP(PARALLEL_DISP_FORMAT, 0) +#define FORMAT_RGB888_TO_RGB666 FIELD_PREP(PARALLEL_DISP_FORMAT, 1) +#define FORMAT_RGB565_TO_RGB565 FIELD_PREP(PARALLEL_DISP_FORMAT, 2) + +struct imx93_pdfc { + struct drm_bridge bridge; + struct device *dev; + struct regmap *regmap; + u32 phy_bus_width; +}; + +static struct imx93_pdfc *bridge_to_imx93_pdfc(struct drm_bridge *bridge) +{ + return container_of(bridge, struct imx93_pdfc, bridge); +} + +static int +imx93_pdfc_bridge_attach(struct drm_bridge *bridge, struct drm_encoder *en= coder, + enum drm_bridge_attach_flags flags) +{ + return drm_bridge_attach(bridge->encoder, bridge->next_bridge, bridge, fl= ags); +} + +static void imx93_pdfc_bridge_atomic_enable(struct drm_bridge *bridge, + struct drm_atomic_state *state) +{ + struct imx93_pdfc *pdfc =3D bridge_to_imx93_pdfc(bridge); + const struct drm_bridge_state *bridge_state; + unsigned int mask =3D PARALLEL_DISP_FORMAT; + unsigned int val; + + bridge_state =3D drm_atomic_get_new_bridge_state(state, bridge); + + switch (bridge_state->output_bus_cfg.format) { + case MEDIA_BUS_FMT_RGB888_1X24: + case MEDIA_BUS_FMT_FIXED: + val =3D FORMAT_RGB888_TO_RGB888; + if (pdfc->phy_bus_width =3D=3D 18) { + /* + * Can be valid if physical bus limitation exists, + * therefore use dev_dbg(). + */ + dev_dbg(pdfc->dev, "Truncate two LSBs from each color\n"); + val =3D FORMAT_RGB888_TO_RGB666; + } + break; + case MEDIA_BUS_FMT_RGB666_1X18: + val =3D FORMAT_RGB888_TO_RGB666; + break; + case MEDIA_BUS_FMT_RGB565_1X16: + val =3D FORMAT_RGB565_TO_RGB565; + break; + } + + regmap_update_bits(pdfc->regmap, IMX93_DISPLAY_MUX_REG, mask, val); +} + +/* TODO: Add YUV formats */ +static const u32 imx93_pdfc_bus_output_fmts[] =3D { + MEDIA_BUS_FMT_FIXED, + MEDIA_BUS_FMT_RGB888_1X24, + MEDIA_BUS_FMT_RGB666_1X18, + MEDIA_BUS_FMT_RGB565_1X16, +}; + +static bool imx93_pdfc_bus_output_fmt_supported(const u32 fmt) +{ + int i; + + for (i =3D 0; i < ARRAY_SIZE(imx93_pdfc_bus_output_fmts); i++) { + if (imx93_pdfc_bus_output_fmts[i] =3D=3D fmt) + return true; + } + + return false; +} + +static u32 * +imx93_pdfc_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state, + u32 output_fmt, + unsigned int *num_input_fmts) +{ + struct imx93_pdfc *pdfc =3D bridge_to_imx93_pdfc(bridge); + u32 *input_fmts; + + *num_input_fmts =3D 0; + + input_fmts =3D kmalloc_obj(*input_fmts, GFP_KERNEL); + if (!input_fmts) + return NULL; + + *num_input_fmts =3D 1; + + if (!imx93_pdfc_bus_output_fmt_supported(output_fmt)) { + dev_dbg(pdfc->dev, "No valid output bus-fmt detected, fallback to MEDIA_= BUS_FMT_RGB888_1X24\n"); + input_fmts[0] =3D MEDIA_BUS_FMT_RGB888_1X24; + return input_fmts; + } + + switch (output_fmt) { + case MEDIA_BUS_FMT_RGB888_1X24: + case MEDIA_BUS_FMT_RGB565_1X16: + input_fmts[0] =3D output_fmt; + break; + case MEDIA_BUS_FMT_RGB666_1X18: + case MEDIA_BUS_FMT_FIXED: + input_fmts[0] =3D MEDIA_BUS_FMT_RGB888_1X24; + break; + } + + return input_fmts; +} + +static int imx93_pdfc_bridge_atomic_check(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct imx93_pdfc *pdfc =3D bridge_to_imx93_pdfc(bridge); + const u32 format =3D bridge_state->output_bus_cfg.format; + + if (imx93_pdfc_bus_output_fmt_supported(format)) + return 0; + + dev_warn(pdfc->dev, "Unsupported output bus format: 0x%x\n", format); + + return -EINVAL; +} + +static const struct drm_bridge_funcs funcs =3D { + .attach =3D imx93_pdfc_bridge_attach, + .atomic_enable =3D imx93_pdfc_bridge_atomic_enable, + .atomic_duplicate_state =3D drm_atomic_helper_bridge_duplicate_state, + .atomic_destroy_state =3D drm_atomic_helper_bridge_destroy_state, + .atomic_get_input_bus_fmts =3D imx93_pdfc_bridge_atomic_get_input_bus_fmt= s, + .atomic_check =3D imx93_pdfc_bridge_atomic_check, + .atomic_reset =3D drm_atomic_helper_bridge_reset, +}; + +static int imx93_pdfc_bridge_probe(struct platform_device *pdev) +{ + struct device *dev =3D &pdev->dev; + struct drm_bridge *next_bridge; + struct imx93_pdfc *pdfc; + struct device_node *ep; + int err; + + pdfc =3D devm_drm_bridge_alloc(dev, struct imx93_pdfc, bridge, &funcs); + if (IS_ERR(pdfc)) + return PTR_ERR(pdfc); + + pdfc->regmap =3D syscon_node_to_regmap(dev->of_node->parent); + if (IS_ERR(pdfc->regmap)) + return dev_err_probe(dev, PTR_ERR(pdfc->regmap), + "failed to get regmap\n"); + + /* No limits per default */ + pdfc->phy_bus_width =3D 24; + + /* Get output ep (port1/endpoint) */ + ep =3D of_graph_get_endpoint_by_regs(dev->of_node, 1, -1); + if (ep) { + err =3D of_property_read_u32(ep, "bus-width", &pdfc->phy_bus_width); + of_node_put(ep); + + /* bus-width is optional but it must have valid data if present */ + if (err && err !=3D -EINVAL) + return dev_err_probe(dev, err, + "failed to query bus-width\n"); + } + + next_bridge =3D devm_drm_of_get_bridge(dev, dev->of_node, 1, 0); + if (IS_ERR(next_bridge)) + return dev_err_probe(dev, PTR_ERR(next_bridge), + "failed to get next bridge\n"); + pdfc->dev =3D dev; + pdfc->bridge.of_node =3D dev->of_node; + pdfc->bridge.type =3D DRM_MODE_CONNECTOR_DPI; + pdfc->bridge.next_bridge =3D next_bridge; + + return devm_drm_bridge_add(dev, &pdfc->bridge); +} + +static const struct of_device_id imx93_pdfc_dt_ids[] =3D { + { .compatible =3D "nxp,imx93-pdfc", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx93_pdfc_dt_ids); + +static struct platform_driver imx93_pdfc_bridge_driver =3D { + .probe =3D imx93_pdfc_bridge_probe, + .driver =3D { + .of_match_table =3D imx93_pdfc_dt_ids, + .name =3D "imx93_pdfc", + }, +}; +module_platform_driver(imx93_pdfc_bridge_driver); + +MODULE_DESCRIPTION("NXP i.MX93 parallel display format configuration drive= r"); +MODULE_AUTHOR("Liu Ying "); +MODULE_LICENSE("GPL"); --=20 2.47.3 From nobody Thu Apr 9 13:33:30 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 759E241B360 for ; Mon, 2 Mar 2026 16:10:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772467858; cv=none; b=CKNSRezvJUfkmeGHd0eaAGD/VLtMj64XUMowqIdQilXQbDPQRtJbdITw6hS0Kwy4sZO7LkEoKnpPXsOp8jVoDTb2q2pfKUb/ySTDvOXjW6LW1X3hbnuSwQDpCjUVTLAxDhsDpWpRh9NNcFnFFgwaQHuvUi0wEp9SZ1333wh29Jk= ARC-Message-Signature: i=1; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260302-v6-18-topic-imx93-parallel-display-v10-3-634fe2778c7a@pengutronix.de> References: <20260302-v6-18-topic-imx93-parallel-display-v10-0-634fe2778c7a@pengutronix.de> In-Reply-To: <20260302-v6-18-topic-imx93-parallel-display-v10-0-634fe2778c7a@pengutronix.de> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Peng Fan , Liu Ying , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , luca.ceresoli@bootlin.com Cc: devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de, Marco Felsch X-Mailer: b4 0.14.2 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::28 X-SA-Exim-Mail-From: m.felsch@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Add required OF nodes to support the i.MX93 parallel output (DPI) path. On the i.MX93 a single LCDIF is connected to three bridges: DPI, LVDS LDB and the MIPI-DSI whereas the i.MX91 support only the DPI bridge. Map endpoint@0 as DPI bridge output since the i.MX93 TRM (Figure 485. MEDIAMIX block diagram) doesn't mention any port-number <-> bridge combination. Set the MEDIA-AXI and MEDIA-APB clocks to the overdrive (OD) values since the i.MX93 and i.MX91 use the overdrive (OD) clk settings per default. Signed-off-by: Marco Felsch --- arch/arm64/boot/dts/freescale/imx91_93_common.dtsi | 54 ++++++++++++++++++= ++++ arch/arm64/boot/dts/freescale/imx93.dtsi | 12 +++++ 2 files changed, 66 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx91_93_common.dtsi b/arch/arm6= 4/boot/dts/freescale/imx91_93_common.dtsi index 7958cef353766a430df5e626ff2403dc05a974b1..5a8813df6bc993d559fb0b20fc7= 42a106bfe6315 100644 --- a/arch/arm64/boot/dts/freescale/imx91_93_common.dtsi +++ b/arch/arm64/boot/dts/freescale/imx91_93_common.dtsi @@ -1122,8 +1122,62 @@ media_blk_ctrl: system-controller@4ac10000 { <&clk IMX93_CLK_MIPI_DSI_GATE>; clock-names =3D "apb", "axi", "nic", "disp", "cam", "pxp", "lcdif", "isi", "csi", "dsi"; + assigned-clocks =3D <&clk IMX93_CLK_MEDIA_AXI>, + <&clk IMX93_CLK_MEDIA_APB>, + <&clk IMX93_CLK_MEDIA_DISP_PIX>; + assigned-clock-parents =3D <&clk IMX93_CLK_SYS_PLL_PFD1>, + <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>, + <&clk IMX93_CLK_VIDEO_PLL>; + assigned-clock-rates =3D <400000000>, <133333333>; #power-domain-cells =3D <1>; status =3D "disabled"; + + dpi_bridge: dpi-bridge { + compatible =3D "nxp,imx93-pdfc"; + status =3D "disabled"; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + dpi_from_lcdif: endpoint { + remote-endpoint =3D <&lcdif_to_dpi>; + }; + }; + + port@1 { + reg =3D <1>; + + dpi_to_panel: endpoint { + }; + }; + }; + }; + }; + + lcdif: display-controller@4ae30000 { + compatible =3D "fsl,imx93-lcdif"; + reg =3D <0x4ae30000 0x23c>; + interrupts =3D ; + clocks =3D <&clk IMX93_CLK_MEDIA_DISP_PIX>, + <&clk IMX93_CLK_LCDIF_GATE>, + <&clk IMX93_CLK_MEDIA_AXI>; + clock-names =3D "pix", "axi", "disp_axi"; + power-domains =3D <&media_blk_ctrl IMX93_MEDIABLK_PD_LCDIF>; + status =3D "disabled"; + + port { + #address-cells =3D <1>; + #size-cells =3D <0>; + + lcdif_to_dpi: endpoint@0 { + reg =3D <0>; + remote-endpoint =3D <&dpi_from_lcdif>; + }; + }; }; =20 usbotg1: usb@4c100000 { diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts= /freescale/imx93.dtsi index 7b27012dfcb564650882dc8c40e836e797b2fda1..5436b48b30e89eb1f939b398ce1= bf105abe7e34b 100644 --- a/arch/arm64/boot/dts/freescale/imx93.dtsi +++ b/arch/arm64/boot/dts/freescale/imx93.dtsi @@ -150,6 +150,18 @@ l3_cache: l3-cache { }; }; =20 +&lcdif { + port { + lcdif_to_ldb: endpoint@1 { + reg =3D <1>; + }; + + lcdif_to_dsi: endpoint@2 { + reg =3D <2>; + }; + }; +}; + &src { mlmix: power-domain@44461800 { compatible =3D "fsl,imx93-src-slice"; --=20 2.47.3