From patchwork Wed May 13 21:24:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Ond=C5=99ej_Jirman?= X-Patchwork-Id: 11547265 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2C98F618 for ; Wed, 13 May 2020 21:26:14 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D95FE205ED for ; Wed, 13 May 2020 21:26:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="OSravCaZ"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=megous.com header.i=@megous.com header.b="I7yBZP2A" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D95FE205ED Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=megous.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=j3WheltZg372RLYnmlFXpTVQM3nNxVV7VoegyLx6gwA=; b=OSravCaZQBM15D 4nBlXpQGQmO4qNYPDlXm5ZAwZAvK1xr0Rg6PbLDNt/dLZpR6VFusLQHfNbYuTu6HCfikEpSdAFtQb TbGkkgtAUjyFWHofiCGnzS11kzZg4boBb9K5E6CcaNEnTfdbIC4RaSVIW7xxSWdlY81Bdp+gelQo/ vvWSdWIwvQK9VnKs/qCa1C+pOFQzl2OA8QWSaaK2SRAcFfSqRMkyVFppp7G4wsORmBa1TY6fqjIhQ yFhiQiHEmfP/n7/rl4Y4oWjP1tDob3GoBYg5Uop26iFHBJhNvdSIyrX20BSu3WXS466cPLgQIOXug kE39wsEnKPZln7mi7NCw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYytA-0000IY-TI; Wed, 13 May 2020 21:26:04 +0000 Received: from vps.xff.cz ([195.181.215.36]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYys6-0005LM-6R for linux-arm-kernel@lists.infradead.org; Wed, 13 May 2020 21:25:02 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1589405096; bh=Ltf9aeNcE4+mQ/GdAR4+0qPXrvLsMpn2puASK5sQ+ag=; h=From:To:Cc:Subject:Date:References:From; b=I7yBZP2A59cmB2H1JRsOrTDMiyp6lDTaFc037J/dnvU/wC0dVyZTSnVHfrpjk9amm FmUiu4qmoTxYiB0zmmpp4zH+PhIugynAgT3xFxEgnAMJcWgOsisVMfz8i9Vn68qU44 k/bq+12Jf1haOWsycnD2pFIHaEdwyjZ46P9c2UiY= From: Ondrej Jirman To: linux-sunxi@googlegroups.com, Thierry Reding , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Maxime Ripard , Chen-Yu Tsai , Linus Walleij , Icenowy Zheng Subject: [PATCH v3 3/5] drm: panel: Add Xingbangda XBD599 panel (ST7703 controller) Date: Wed, 13 May 2020 23:24:49 +0200 Message-Id: <20200513212451.1919013-4-megous@megous.com> In-Reply-To: <20200513212451.1919013-1-megous@megous.com> References: <20200513212451.1919013-1-megous@megous.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200513_142458_587936_568720AD X-CRM114-Status: GOOD ( 18.42 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ondrej Jirman , devicetree@vger.kernel.org, Samuel Holland , Bhushan Shah , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Luca Weiss , Martijn Braam , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Icenowy Zheng Xingbangda XBD599 is a 5.99" 720x1440 MIPI-DSI IPS LCD panel made by Xingbangda, which is used on PinePhone final assembled phones. It is based on Sitronix ST7703 LCD controller. Add support for it. Signed-off-by: Icenowy Zheng Signed-off-by: Ondrej Jirman --- drivers/gpu/drm/panel/Kconfig | 10 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-sitronix-st7703.c | 386 ++++++++++++++++++ 3 files changed, 397 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-sitronix-st7703.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 39055c1f0e2f..b7bc157b0612 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -395,6 +395,16 @@ config DRM_PANEL_SITRONIX_ST7701 ST7701 controller for 480X864 LCD panels with MIPI/RGB/SPI system interfaces. +config DRM_PANEL_SITRONIX_ST7703 + tristate "Sitronix ST7703 panel driver" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y here if you want to enable support for the Sitronix + ST7703 controller for 720X1440 LCD panels with MIPI/RGB/SPI + system interfaces. + config DRM_PANEL_SITRONIX_ST7789V tristate "Sitronix ST7789V panel" depends on OF && SPI diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index de74f282c433..47f4789a8685 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o +obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o obj-$(CONFIG_DRM_PANEL_SONY_ACX424AKP) += panel-sony-acx424akp.o obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c new file mode 100644 index 000000000000..092dd73c86d0 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c @@ -0,0 +1,386 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * DRM driver for Sitronix ST7703 MIPI DSI panel + * + * Copyright (C) 2020 Ondrej Jirman + * Copyright (C) 2019-2020 Icenowy Zheng + * + * Based on panel-rocktech-jh057n00900.c, which is: + * Copyright (C) Purism SPC 2019 + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +/* Manufacturer specific Commands send via DSI */ +#define ST7703_CMD_ALL_PIXEL_OFF 0x22 +#define ST7703_CMD_ALL_PIXEL_ON 0x23 +#define ST7703_CMD_SETDISP 0xB2 +#define ST7703_CMD_SETRGBIF 0xB3 +#define ST7703_CMD_SETCYC 0xB4 +#define ST7703_CMD_SETBGP 0xB5 +#define ST7703_CMD_SETVCOM 0xB6 +#define ST7703_CMD_SETOTP 0xB7 +#define ST7703_CMD_SETPOWER_EXT 0xB8 +#define ST7703_CMD_SETEXTC 0xB9 +#define ST7703_CMD_SETMIPI 0xBA +#define ST7703_CMD_SETVDC 0xBC +#define ST7703_CMD_SETSCR 0xC0 +#define ST7703_CMD_SETPOWER 0xC1 +#define ST7703_CMD_UNK_C6 0xC6 +#define ST7703_CMD_SETPANEL 0xCC +#define ST7703_CMD_SETGAMMA 0xE0 +#define ST7703_CMD_SETEQ 0xE3 +#define ST7703_CMD_SETGIP1 0xE9 +#define ST7703_CMD_SETGIP2 0xEA + +struct st7703_panel_desc { + const struct drm_display_mode *mode; + unsigned int lanes; + unsigned long flags; + enum mipi_dsi_pixel_format format; + const char *const *supply_names; + unsigned int num_supplies; +}; + +struct st7703 { + struct device *dev; + struct drm_panel panel; + struct gpio_desc *reset_gpio; + struct regulator_bulk_data *supplies; + const struct st7703_panel_desc *desc; + bool prepared; +}; + +static inline struct st7703 *panel_to_st7703(struct drm_panel *panel) +{ + return container_of(panel, struct st7703, panel); +} + +#define dsi_dcs_write_seq(dsi, cmd, seq...) do { \ + static const u8 d[] = { seq }; \ + int ret; \ + ret = mipi_dsi_dcs_write(dsi, cmd, d, ARRAY_SIZE(d)); \ + if (ret < 0) \ + return ret; \ + } while (0) + +static int st7703_init_sequence(struct st7703 *ctx) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + struct device *dev = ctx->dev; + int ret; + + /* + * Init sequence was supplied by the panel vendor. + */ + dsi_dcs_write_seq(dsi, ST7703_CMD_SETEXTC, + 0xF1, 0x12, 0x83); + 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, 0x91, 0x0a, 0x00, 0x00, 0x02, 0x4F, 0x11, + 0x00, 0x00, 0x37); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER_EXT, + 0x25, 0x22, 0x20, 0x03); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETRGBIF, + 0x10, 0x10, 0x05, 0x05, 0x03, 0xFF, 0x00, 0x00, + 0x00, 0x00); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETSCR, + 0x73, 0x73, 0x50, 0x50, 0x00, 0xC0, 0x08, 0x70, + 0x00); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETVDC, 0x4E); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0B); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETCYC, 0x80); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETDISP, 0xF0, 0x12, 0xF0); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETEQ, + 0x00, 0x00, 0x0B, 0x0B, 0x10, 0x10, 0x00, 0x00, + 0x00, 0x00, 0xFF, 0x00, 0xC0, 0x10); + dsi_dcs_write_seq(dsi, 0xC6, 0x01, 0x00, 0xFF, 0xFF, 0x00); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER, + 0x74, 0x00, 0x32, 0x32, 0x77, 0xF1, 0xFF, 0xFF, + 0xCC, 0xCC, 0x77, 0x77); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETBGP, 0x07, 0x07); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETVCOM, 0x2C, 0x2C); + dsi_dcs_write_seq(dsi, 0xBF, 0x02, 0x11, 0x00); + + dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP1, + 0x82, 0x10, 0x06, 0x05, 0xA2, 0x0A, 0xA5, 0x12, + 0x31, 0x23, 0x37, 0x83, 0x04, 0xBC, 0x27, 0x38, + 0x0C, 0x00, 0x03, 0x00, 0x00, 0x00, 0x0C, 0x00, + 0x03, 0x00, 0x00, 0x00, 0x75, 0x75, 0x31, 0x88, + 0x88, 0x88, 0x88, 0x88, 0x88, 0x13, 0x88, 0x64, + 0x64, 0x20, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, + 0x02, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP2, + 0x02, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x02, 0x46, 0x02, 0x88, + 0x88, 0x88, 0x88, 0x88, 0x88, 0x64, 0x88, 0x13, + 0x57, 0x13, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, + 0x75, 0x88, 0x23, 0x14, 0x00, 0x00, 0x02, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x0A, + 0xA5, 0x00, 0x00, 0x00, 0x00); + dsi_dcs_write_seq(dsi, ST7703_CMD_SETGAMMA, + 0x00, 0x09, 0x0D, 0x23, 0x27, 0x3C, 0x41, 0x35, + 0x07, 0x0D, 0x0E, 0x12, 0x13, 0x10, 0x12, 0x12, + 0x18, 0x00, 0x09, 0x0D, 0x23, 0x27, 0x3C, 0x41, + 0x35, 0x07, 0x0D, 0x0E, 0x12, 0x13, 0x10, 0x12, + 0x12, 0x18); + msleep(20); + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + DRM_DEV_ERROR(dev, "Failed to exit sleep mode\n"); + return ret; + } + msleep(250); + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret) + return ret; + msleep(50); + + DRM_DEV_DEBUG_DRIVER(dev, "Panel init sequence done\n"); + return 0; +} + +static int st7703_prepare(struct drm_panel *panel) +{ + struct st7703 *ctx = panel_to_st7703(panel); + int ret; + + if (ctx->prepared) + return 0; + + ret = regulator_bulk_enable(ctx->desc->num_supplies, ctx->supplies); + if (ret) + return ret; + + DRM_DEV_DEBUG_DRIVER(ctx->dev, "Resetting the panel\n"); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(20, 40); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + msleep(20); + + ctx->prepared = true; + + return 0; +} + +static int st7703_enable(struct drm_panel *panel) +{ + struct st7703 *ctx = panel_to_st7703(panel); + int ret; + + ret = st7703_init_sequence(ctx); + if (ret < 0) { + DRM_DEV_ERROR(ctx->dev, "Panel init sequence failed: %d\n", + ret); + return ret; + } + + return 0; +} + +static int st7703_disable(struct drm_panel *panel) +{ + struct st7703 *ctx = panel_to_st7703(panel); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + + return mipi_dsi_dcs_set_display_off(dsi); +} + +static int st7703_unprepare(struct drm_panel *panel) +{ + struct st7703 *ctx = panel_to_st7703(panel); + + if (!ctx->prepared) + return 0; + + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_bulk_disable(ctx->desc->num_supplies, ctx->supplies); + ctx->prepared = false; + + return 0; +} + +static int st7703_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct st7703 *ctx = panel_to_st7703(panel); + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(connector->dev, ctx->desc->mode); + if (!mode) { + DRM_DEV_ERROR(ctx->dev, "Failed to add mode\n"); + return -ENOMEM; + } + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + connector->display_info.width_mm = mode->width_mm; + connector->display_info.height_mm = mode->height_mm; + drm_mode_probed_add(connector, mode); + + return 1; +} + +static const struct drm_panel_funcs st7703_drm_funcs = { + .prepare = st7703_prepare, + .enable = st7703_enable, + .disable = st7703_disable, + .unprepare = st7703_unprepare, + .get_modes = st7703_get_modes, +}; + +static const struct drm_display_mode xbd599_mode = { + .hdisplay = 720, + .hsync_start = 720 + 40, + .hsync_end = 720 + 40 + 40, + .htotal = 720 + 40 + 40 + 40, + .vdisplay = 1440, + .vsync_start = 1440 + 18, + .vsync_end = 1440 + 18 + 10, + .vtotal = 1440 + 18 + 10 + 17, + .vrefresh = 60, + .clock = 69000, + .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, + + .width_mm = 68, + .height_mm = 136, + .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, +}; + +static const char * const xbd599_supply_names[] = { + "iovcc", + "vcc", +}; + +static const struct st7703_panel_desc xbd599_desc = { + .mode = &xbd599_mode, + .lanes = 4, + .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE, + .format = MIPI_DSI_FMT_RGB888, + .supply_names = xbd599_supply_names, + .num_supplies = ARRAY_SIZE(xbd599_supply_names), +}; + +static int st7703_probe(struct mipi_dsi_device *dsi) +{ + const struct st7703_panel_desc *desc; + struct device *dev = &dsi->dev; + struct st7703 *ctx; + int i, ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->dev = dev; + ctx->desc = desc = of_device_get_match_data(dev); + + dsi->mode_flags = desc->flags; + dsi->format = desc->format; + dsi->lanes = desc->lanes; + + ctx->supplies = devm_kcalloc(&dsi->dev, desc->num_supplies, + sizeof(*ctx->supplies), + GFP_KERNEL); + if (!ctx->supplies) + return -ENOMEM; + + for (i = 0; i < desc->num_supplies; i++) + ctx->supplies[i].supply = desc->supply_names[i]; + + ret = devm_regulator_bulk_get(&dsi->dev, desc->num_supplies, + ctx->supplies); + if (ret < 0) + return ret; + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(ctx->reset_gpio)) { + DRM_DEV_ERROR(dev, "Can't get reset gpio\n"); + return PTR_ERR(ctx->reset_gpio); + } + + mipi_dsi_set_drvdata(dsi, ctx); + + drm_panel_init(&ctx->panel, &dsi->dev, &st7703_drm_funcs, + DRM_MODE_CONNECTOR_DSI); + + ret = drm_panel_of_backlight(&ctx->panel); + if (ret) + return ret; + + drm_panel_add(&ctx->panel); + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + DRM_DEV_ERROR(dev, "mipi_dsi_attach failed. Is host ready?\n"); + drm_panel_remove(&ctx->panel); + return ret; + } + + return 0; +} + +static void st7703_shutdown(struct mipi_dsi_device *dsi) +{ + struct st7703 *ctx = mipi_dsi_get_drvdata(dsi); + int ret; + + ret = drm_panel_unprepare(&ctx->panel); + if (ret < 0) + DRM_DEV_ERROR(&dsi->dev, "Failed to unprepare panel: %d\n", + ret); +} + +static int st7703_remove(struct mipi_dsi_device *dsi) +{ + struct st7703 *ctx = mipi_dsi_get_drvdata(dsi); + int ret; + + st7703_shutdown(dsi); + + ret = mipi_dsi_detach(dsi); + if (ret < 0) + DRM_DEV_ERROR(&dsi->dev, "Failed to detach from DSI host: %d\n", + ret); + + drm_panel_remove(&ctx->panel); + + return 0; +} + +static const struct of_device_id st7703_of_match[] = { + { .compatible = "xingbangda,xbd599", .data = &xbd599_desc }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, st7703_of_match); + +static struct mipi_dsi_driver st7703_driver = { + .probe = st7703_probe, + .remove = st7703_remove, + .shutdown = st7703_shutdown, + .driver = { + .name = "st7703", + .of_match_table = st7703_of_match, + }, +}; +module_mipi_dsi_driver(st7703_driver); + +MODULE_AUTHOR("Icenowy Zheng "); +MODULE_DESCRIPTION("DRM driver for Sitronix ST7703 MIPI DSI panel"); +MODULE_LICENSE("GPL v2");