From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <devicetree-owner@vger.kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id EA8F7C77B7A
	for <linux-devicetree@archiver.kernel.org>; Wed,  7 Jun 2023 15:11:49 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S241274AbjFGPLs (ORCPT
        <rfc822;linux-devicetree@archiver.kernel.org>);
        Wed, 7 Jun 2023 11:11:48 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55664 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S241286AbjFGPLp (ORCPT
        <rfc822;devicetree@vger.kernel.org>); Wed, 7 Jun 2023 11:11:45 -0400
Received: from mail-ej1-x629.google.com (mail-ej1-x629.google.com [IPv6:2a00:1450:4864:20::629])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4F271734;
        Wed,  7 Jun 2023 08:11:42 -0700 (PDT)
Received: by mail-ej1-x629.google.com with SMTP id a640c23a62f3a-973f78329e3so1217625866b.3;
        Wed, 07 Jun 2023 08:11:42 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20221208; t=1686150701; x=1688742701;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=gUBjVqJOJshn+aoB0YpUZ3QQ2c92NN/VgddOCuffR24=;
        b=kg0nRJ6hxH3iNtpDkwZ59eysu/Y1id9CkCDFoOD7lUp+9PqXFG+thoUna0VKW+B0IX
         MKdu6bEe7WbM8BoeE0L4n7GENyBfmP3hYqkZfSHZIhlGhPdJOje6zr2yWoXwZR5IZGy0
         YswUlaqwJ+vL4BagrLgzBvcyh4tZkBylzQCrdA2eDtzPRsg8+hOU0C9P9oVhbhLoJAU/
         2pQG/irv9E+2Xab3clSZW9Lxfdd+6oK6pyHTJKcvu9mr0OQQb+Vx7V625IKxzSgBjjtQ
         zIPLZtzMiGti+U8ElnZQIiz6jFXQPMcwbYghRlV2mUf9xWFa+N8lhQjUONl49IfaXpGb
         aYdg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20221208; t=1686150701; x=1688742701;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=gUBjVqJOJshn+aoB0YpUZ3QQ2c92NN/VgddOCuffR24=;
        b=EcYp8m6bsiETFOcSoz3Xqc1I01fkTO5vwqPBAE76BFyPm7KOODymdYQSmLeE4YTMD0
         FBmmNGF8LL40h4hXDDwcIA1/6m5nbGjvEVgQC3FeMB2wmcA1l9GB/A8yvP6Y3pcpEkJQ
         PmtAHqvGvXMskEAazm7/KAvUaQx7onIZnGdZE6Nm9Cfr1z8RdAMulIOQgfvX01q84xGd
         FAKe2ppJLhBG845dKt+Zgx0izjG6xNsgZ9etRzUHKJLN4blttJ9/Zy/+qOOmgwZHsQIz
         eO1Qom1FG0sR9EdEb1mRBNUjFp/rARfErFuYMRRjBRP5R0fUD29UUN5iGSQcvSuSsFIc
         WOOQ==
X-Gm-Message-State: AC+VfDzVWKNjWoaxeYSvDXcHKs+QHXsEo3/e5ANG9Ri8elfOpn7CwXsX
        J1M9KkIX4mnAJFHwQDKJblBd0zAwmYrh/wOP
X-Google-Smtp-Source: ACHHUZ5bLiEa7rFIYyM1+A7BogDprhnpioIYQmfaZay9DRZzGaSjOcLF26buM1hrH7YLtHUk69662g==
X-Received: by 2002:a17:907:6ea3:b0:966:2123:e0ca with SMTP id sh35-20020a1709076ea300b009662123e0camr7426493ejc.34.1686150700910;
        Wed, 07 Jun 2023 08:11:40 -0700 (PDT)
Received: from fedora.. ([46.188.160.176])
        by smtp.gmail.com with ESMTPSA id m19-20020a170906235300b00967a18df1easm7006222eja.117.2023.06.07.08.11.38
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Wed, 07 Jun 2023 08:11:40 -0700 (PDT)
From:   Paulo Pavacic <pavacic.p@gmail.com>
To:     neil.armstrong@linaro.org, sam@ravnborg.org, airlied@gmail.com,
        daniel@ffwll.ch, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org
Cc:     dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, Paulo Pavacic <pavacic.p@gmail.com>
Subject: [PATCH v4 3/3] drm/panel-fannal-c3004: Add fannal c3004 DSI panel
Date:   Wed,  7 Jun 2023 17:11:27 +0200
Message-Id: <20230607151127.1542024-4-pavacic.p@gmail.com>
X-Mailer: git-send-email 2.40.1
In-Reply-To: <20230607151127.1542024-1-pavacic.p@gmail.com>
References: <20230607151127.1542024-1-pavacic.p@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk
List-ID: <devicetree.vger.kernel.org>
X-Mailing-List: devicetree@vger.kernel.org

Fannal C3004 is a 480x800 display made by fannal that requires
DCS initialization sequences.

Signed-off-by: Paulo Pavacic <pavacic.p@gmail.com>
---
v4 changelog:
 - removal of blank lines, code wrapping changes
 - reset pin initialization handling changes
v3 changelog:
 - formatting and style changes
 - remove BIT_NONEXCLUSIVE flag from reset pin
 - use dev_err_probe instead of dev_err
v2 changelog:
 - using generic mipi_dsi_dcs_write_seq
 - removed success prints
 - removed some comments
 - simplified code/removed support for different panels
 - changed namespace from fann to fannal
v1 changelog:
 - renamed from panel-mipi-dsi-bringup
 - only one MAINTAINER e-mail
---
 MAINTAINERS                                |   1 +
 drivers/gpu/drm/panel/Kconfig              |  11 +
 drivers/gpu/drm/panel/Makefile             |   1 +
 drivers/gpu/drm/panel/panel-fannal-c3004.c | 314 +++++++++++++++++++++
 4 files changed, 327 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-fannal-c3004.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 978133f87c5e..7ad37ecd7e09 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6431,6 +6431,7 @@ DRM DRIVER FOR FANNAL C3004373132019A
 M:	Paulo Pavacic <pavacic.p@gmail.com>
 S:	Maintained
 F:	Documentation/devicetree/bindings/display/panel/panel-fannal,c3004.yaml
+F:	drivers/gpu/drm/panel/panel-fannal-c3004.c
 
 DRM DRIVER FOR FARADAY TVE200 TV ENCODER
 M:	Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 2b9d6db7860b..a1041c1e6bf6 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -144,6 +144,17 @@ config DRM_PANEL_ELIDA_KD35T133
 	  KD35T133 controller for 320x480 LCD panels with MIPI-DSI
 	  system interfaces.
 
+config DRM_PANEL_FANNAL_C3004
+	tristate "Fannal C3004 panel"
+	depends on OF
+	depends on DRM_MIPI_DSI
+	help
+	  Say Y here if you want to enable support for the Fannal C3004
+	  2-lane 480x800 MIPI DSI panel which requires initialization
+	  sequence.
+
+	  If M is selected the module will be called panel-fannal-c3004.
+
 config DRM_PANEL_FEIXIN_K101_IM2BA02
 	tristate "Feixin K101 IM2BA02 panel"
 	depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index ff169781e82d..13c0f00038b5 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
 obj-$(CONFIG_DRM_PANEL_EDP) += panel-edp.o
 obj-$(CONFIG_DRM_PANEL_EBBG_FT8719) += panel-ebbg-ft8719.o
 obj-$(CONFIG_DRM_PANEL_ELIDA_KD35T133) += panel-elida-kd35t133.o
+obj-$(CONFIG_DRM_PANEL_FANNAL_C3004) += panel-fannal-c3004.o
 obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o
 obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o
 obj-$(CONFIG_DRM_PANEL_HIMAX_HX8394) += panel-himax-hx8394.o
diff --git a/drivers/gpu/drm/panel/panel-fannal-c3004.c b/drivers/gpu/drm/panel/panel-fannal-c3004.c
new file mode 100644
index 000000000000..002c424f2486
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-fannal-c3004.c
@@ -0,0 +1,314 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MIPI DSI driver for fannal C3004.
+ * Copyright (C) 2023, Zenitel
+ * Author: Paulo Pavacic <pavacic.p@gmail.com>
+ */
+
+// ↓ include headers, static values, static functions ↓
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/media-bus-format.h>
+
+#include <video/mipi_display.h>
+#include <video/of_videomode.h>
+#include <video/videomode.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_panel.h>
+
+struct fannal_panel_data {
+	struct drm_panel panel;
+	struct gpio_desc *reset;
+};
+
+static struct fannal_panel_data *
+get_fannal_panel_data_from_panel(struct drm_panel *panel)
+{
+	return container_of(panel, struct fannal_panel_data, panel);
+}
+
+static const u32 fannal_bus_formats[] = {
+	MEDIA_BUS_FMT_RGB888_1X24,
+};
+
+// resolution 480p x 800p, 56mmx93mm
+static const struct drm_display_mode fannal_c3004_display_mode = {
+	.clock = 27000,
+	.hdisplay = 480, // display height pixels
+	.hsync_start = 480 + 30, // hdisplay + HBP
+	.hsync_end = 480 + 30 + 8, // hdisplay + HBP + HSync
+	.htotal = 480 + 30 + 8 + 30, // hdisplay + HBP + HSync + HFP
+	.vdisplay = 800, // display width pixels
+	.vsync_start = 800 + 20, // vdisplay + VBP
+	.vsync_end = 800 + 20 + 8, // vdisplay + VBP + VSync
+	.vtotal = 800 + 20 + 8 + 20, // vdisplay + VBP + VSync + VFP
+	.width_mm = 93,
+	.height_mm = 56,
+	.flags = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static void fannal_panel_remove(struct mipi_dsi_device *dsi)
+{
+	struct fannal_panel_data *panel_data = mipi_dsi_get_drvdata(dsi);
+	struct device *dev = &dsi->dev;
+	int ret;
+
+	ret = mipi_dsi_detach(dsi);
+	if (ret)
+		dev_err(dev, "error: disable: mipi detach (%d)\n", ret);
+
+	drm_panel_remove(&panel_data->panel);
+}
+
+static int fannal_panel_disable(struct drm_panel *panel)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(panel->dev);
+	struct device *dev = panel->dev;
+	int ret;
+
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_set_display_off(dsi);
+	if (ret < 0) {
+		dev_err(dev, "error: disable: turn display OFF (%d)\n", ret);
+		return ret;
+	}
+
+	usleep_range(5000, 10000);
+
+	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(dev, "error: disable: enter sleep mode (%d)\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fannal_panel_unprepare(struct drm_panel *panel)
+{
+	struct fannal_panel_data *panel_data =
+		get_fannal_panel_data_from_panel(panel);
+
+	if (panel_data->reset) {
+		gpiod_set_value_cansleep(panel_data->reset, 1);
+		usleep_range(15000, 17000);
+		gpiod_set_value_cansleep(panel_data->reset, 0);
+	}
+
+	return 0;
+}
+
+static void fannal_panel_shutdown(struct mipi_dsi_device *dsi)
+{
+	struct fannal_panel_data *panel_data = mipi_dsi_get_drvdata(dsi);
+
+	fannal_panel_disable(&panel_data->panel);
+	fannal_panel_unprepare(&panel_data->panel);
+}
+
+static int fannal_panel_get_modes(struct drm_panel *panel,
+				  struct drm_connector *connector)
+{
+	struct drm_display_mode *mode;
+	const struct drm_display_mode *panel_display_mode =
+		&fannal_c3004_display_mode;
+
+	mode = drm_mode_duplicate(connector->dev, &fannal_c3004_display_mode);
+	if (!mode) {
+		dev_err(panel->dev, "error: get_modes: add drm mode %ux%u@%u\n",
+			panel_display_mode->hdisplay,
+			panel_display_mode->vdisplay,
+			drm_mode_vrefresh(panel_display_mode));
+		return -ENOMEM;
+	}
+
+	drm_mode_set_name(mode);
+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+	drm_mode_probed_add(connector, mode);
+
+	connector->display_info.width_mm = mode->width_mm;
+	connector->display_info.height_mm = mode->height_mm;
+	connector->display_info.bus_flags = DRM_BUS_FLAG_DE_LOW |
+					    DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE;
+
+	drm_display_info_set_bus_formats(&connector->display_info,
+					 fannal_bus_formats,
+					 ARRAY_SIZE(fannal_bus_formats));
+	return 1;
+}
+
+static const struct of_device_id fannal_of_match[] = {
+	{ .compatible = "fannal,c3004" },
+	{ /* sentinel */ }
+};
+
+static int fannal_panel_enable(struct drm_panel *panel)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(panel->dev);
+
+	mipi_dsi_generic_write_seq(dsi, 0xFF, 0x77, 0x01, 0x00, 0x00, 0x13);
+	mipi_dsi_generic_write_seq(dsi, 0xEF, 0x08);
+
+	mipi_dsi_generic_write_seq(dsi, 0xFF, 0x77, 0x01, 0x00, 0x00, 0x10);
+	mipi_dsi_generic_write_seq(dsi, 0xC0, 0x63, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xC1, 0x0A, 0x0C);
+	mipi_dsi_generic_write_seq(dsi, 0xC2, 0x31, 0x08);
+	mipi_dsi_generic_write_seq(dsi, 0xCC, 0x18);
+
+	mipi_dsi_generic_write_seq(dsi, 0xB0, 0x00, 0x08, 0x10, 0x0E, 0x11,
+				   0x07, 0x08, 0x08, 0x08, 0x25, 0x04, 0x12,
+				   0x0F, 0x2C, 0x30, 0x1F);
+	mipi_dsi_generic_write_seq(dsi, 0xB1, 0x00, 0x11, 0x18, 0x0C, 0x10,
+				   0x05, 0x07, 0x09, 0x08, 0x24, 0x04, 0x11,
+				   0x10, 0x2B, 0x30, 0x1F);
+
+	mipi_dsi_generic_write_seq(dsi, 0xFF, 0x77, 0x01, 0x00, 0x00, 0x11);
+	mipi_dsi_generic_write_seq(dsi, 0xB0, 0x4D);
+	mipi_dsi_generic_write_seq(dsi, 0xB1, 0x39);
+	mipi_dsi_generic_write_seq(dsi, 0xB2, 0x87);
+	mipi_dsi_generic_write_seq(dsi, 0xB3, 0x80);
+	mipi_dsi_generic_write_seq(dsi, 0xB5, 0x47);
+	mipi_dsi_generic_write_seq(dsi, 0xB7, 0x8A);
+	mipi_dsi_generic_write_seq(dsi, 0xB8, 0x20);
+	mipi_dsi_generic_write_seq(dsi, 0xB9, 0x10, 0x13);
+	mipi_dsi_generic_write_seq(dsi, 0xC1, 0x78);
+	mipi_dsi_generic_write_seq(dsi, 0xC2, 0x78);
+	mipi_dsi_generic_write_seq(dsi, 0xD0, 0x88);
+
+	//PANEL
+	mipi_dsi_generic_write_seq(dsi, 0xE0, 0x00, 0x00, 0x02);
+	mipi_dsi_generic_write_seq(dsi, 0xE1, 0x04, 0x00, 0x00, 0x00, 0x05,
+				   0x00, 0x00, 0x00, 0x00, 0x20, 0x20);
+	mipi_dsi_generic_write_seq(dsi, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x00,
+				   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				   0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xE3, 0x00, 0x00, 0x33, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xE4, 0x22, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xE5, 0x04, 0x34, 0xAA, 0xAA, 0x06,
+				   0x34, 0xAA, 0xAA, 0x00, 0x00, 0x00, 0x00,
+				   0x00, 0x00, 0x00, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xE6, 0x00, 0x00, 0x33, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xE7, 0x22, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xE8, 0x05, 0x34, 0xAA, 0xAA, 0x07,
+				   0x34, 0xAA, 0xAA, 0x00, 0x00, 0x00, 0x00,
+				   0x00, 0x00, 0x00, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xEB, 0x02, 0x00, 0x40, 0x40, 0x00,
+				   0x00, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xEC, 0x00, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0xED, 0xFA, 0x45, 0x0B, 0xFF, 0xFF,
+				   0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+				   0xFF, 0xB0, 0x54, 0xAF);
+	mipi_dsi_generic_write_seq(dsi, 0xEF, 0x10, 0x0D, 0x04, 0x08, 0x3F,
+				   0x1F);
+
+	mipi_dsi_generic_write_seq(dsi, 0xFF, 0x77, 0x01, 0x00, 0x00, 0x13);
+	mipi_dsi_generic_write_seq(dsi, 0xE8, 0x00, 0x0E);
+
+	mipi_dsi_generic_write_seq(dsi, 0xFF, 0x77, 0x01, 0x00, 0x00, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0x11); //MIPI_DCS_EXIT_SLEEP_MODE
+
+	msleep(600);
+
+	mipi_dsi_generic_write_seq(dsi, 0xFF, 0x77, 0x01, 0x00, 0x00, 0x13);
+	mipi_dsi_generic_write_seq(dsi, 0xE8, 0x00, 0x0C);
+	msleep(50);
+	mipi_dsi_generic_write_seq(dsi, 0xE8, 0x00, 0x00);
+
+	mipi_dsi_generic_write_seq(dsi, 0xFF, 0x77, 0x01, 0x00, 0x00, 0x00);
+	mipi_dsi_generic_write_seq(dsi, 0x29); //MIPI_DCS_SET_DISPLAY_ON
+	msleep(100);
+	return 0;
+}
+
+static int fannal_panel_prepare(struct drm_panel *panel)
+{
+	struct fannal_panel_data *panel_data =
+		get_fannal_panel_data_from_panel(panel);
+
+	/* At lest 10ms needed between power-on and reset-out as RM specifies */
+	usleep_range(10000, 12000);
+
+	if (panel_data->reset) {
+		gpiod_set_value_cansleep(panel_data->reset, 0);
+		/*
+		 * 50ms delay after reset-out, as per manufacturer initalization
+		 * sequence.
+		 */
+		msleep(50);
+	}
+
+	return 0;
+}
+
+static const struct drm_panel_funcs fannal_panel_funcs = {
+	.prepare = fannal_panel_prepare,
+	.unprepare = fannal_panel_unprepare,
+	.enable = fannal_panel_enable,
+	.disable = fannal_panel_disable,
+	.get_modes = fannal_panel_get_modes,
+};
+
+static int fannal_panel_probe(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	struct fannal_panel_data *panel_data;
+	int ret;
+
+	panel_data = devm_kzalloc(&dsi->dev, sizeof(*panel_data), GFP_KERNEL);
+	if (!panel_data)
+		return -ENOMEM;
+
+	panel_data->reset = devm_gpiod_get_optional(dev, "reset",
+			GPIOD_OUT_HIGH);
+	if (IS_ERR(panel_data->reset)) {
+		return dev_err_probe(
+			dev, PTR_ERR(panel_data->reset),
+			"error: probe: get reset GPIO: (%d) Check the fdt\n",
+			ret);
+	}
+
+	mipi_dsi_set_drvdata(dsi, panel_data);
+
+	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS |
+			  MIPI_DSI_MODE_VSYNC_FLUSH | MIPI_DSI_MODE_VIDEO_HSE |
+			  MIPI_DSI_MODE_NO_EOT_PACKET |
+			  MIPI_DSI_MODE_VIDEO_SYNC_PULSE | MIPI_DSI_MODE_VIDEO;
+	dsi->lanes = 2;
+
+	drm_panel_init(&panel_data->panel, dev, &fannal_panel_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+	dev_set_drvdata(dev, panel_data);
+
+	drm_panel_add(&panel_data->panel);
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret) {
+		drm_panel_remove(&panel_data->panel);
+		dev_err(dev, "error: probe fail: can't attach mipi_dsi\n");
+	}
+
+	return ret;
+}
+
+static struct mipi_dsi_driver fannal_panel_driver = {
+	.driver = {
+		.name = "panel-fannal-c3004",
+		.of_match_table = fannal_of_match,
+	},
+	.probe = fannal_panel_probe,
+	.remove = fannal_panel_remove,
+	.shutdown = fannal_panel_shutdown,
+};
+
+module_mipi_dsi_driver(fannal_panel_driver);
+
+MODULE_AUTHOR("Paulo Pavacic <pavacic.p@gmail.com>");
+MODULE_DESCRIPTION("fannal C3004 panel driver");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(of, fannal_of_match);
-- 
2.40.1