From nobody Thu Dec 18 08:07:38 2025 Return-Path: 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 7E6C4C7618E for ; Sat, 22 Apr 2023 20:51:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230102AbjDVUvA (ORCPT ); Sat, 22 Apr 2023 16:51:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229895AbjDVUud (ORCPT ); Sat, 22 Apr 2023 16:50:33 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8B682706; Sat, 22 Apr 2023 13:50:32 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 852B261553; Sat, 22 Apr 2023 20:50:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 69095C433A1; Sat, 22 Apr 2023 20:50:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1682196630; bh=eUU5RldMNCDDlm4SoM+xtwyGoFwbZ815W9/D47ihSVI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MG5GyLBgcBInmQq6rn0xgHi5c/ZuG76NQlt5f0s4j2WcrDIGVAoNVxkufW0ECBBAt izW/XN+3AAe8Ghj8/hQSyln7Od3wl5NE2cFcZyifoD1mIe/Odj00i83lH+SY0V39eD xNtUjd/3hsWO0Oa6UIWhzomtcFMqaRze2SjKO8tVt05k+qGNNANlWTz61r3K179aTq rwz59hTYbFeJD4/vECJtusc3jacJFwgsWr3awUobEDHJzGvnsZBt86m7q70jcfrox8 gPyBV+G9OZsexTmZ/6W7H2YN1BDWoqF3Ns7EwhD2lNQ5USPN5KcB6ozP2Tuwvy2e6B Rg4LAvME+qc/A== Received: by mercury (Postfix, from userid 1000) id 253661066CD2; Sat, 22 Apr 2023 22:50:25 +0200 (CEST) From: Sebastian Reichel To: Sebastian Reichel Cc: Gerald Loacker , Michael Riesch , Thierry Reding , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v2 13/13] drm/panel: sitronix-st7789v: add Inanbo T28CP45TN89 support Date: Sat, 22 Apr 2023 22:50:12 +0200 Message-Id: <20230422205012.2464933-14-sre@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230422205012.2464933-1-sre@kernel.org> References: <20230422205012.2464933-1-sre@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" UNI-T UTi260b has a Inanbo T28CP45TN89 v17 panel. I could not find proper documentation for the panel apart from a technical drawing, but according to the vendor U-Boot it is based on a Sitronix st7789v chip. I generated the init sequence by modifying the default one until proper graphics output has been seen on the device. Signed-off-by: Sebastian Reichel --- .../gpu/drm/panel/panel-sitronix-st7789v.c | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c b/drivers/gpu/d= rm/panel/panel-sitronix-st7789v.c index f3b1bf7ef996..172c6c1fc090 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c @@ -173,6 +173,21 @@ static const struct drm_display_mode default_mode =3D { .flags =3D DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, }; =20 +static const struct drm_display_mode t28cp45tn89_mode =3D { + .clock =3D 6008, + .hdisplay =3D 240, + .hsync_start =3D 240 + 38, + .hsync_end =3D 240 + 38 + 10, + .htotal =3D 240 + 38 + 10 + 10, + .vdisplay =3D 320, + .vsync_start =3D 320 + 8, + .vsync_end =3D 320 + 8 + 4, + .vtotal =3D 320 + 8 + 4 + 4, + .width_mm =3D 43, + .height_mm =3D 57, + .flags =3D DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC, +}; + struct st7789_panel_info default_panel =3D { .mode =3D &default_mode, .invert_mode =3D true, @@ -181,6 +196,14 @@ struct st7789_panel_info default_panel =3D { DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE, }; =20 +struct st7789_panel_info t28cp45tn89_panel =3D { + .mode =3D &t28cp45tn89_mode, + .invert_mode =3D false, + .bus_format =3D MEDIA_BUS_FMT_RGB565_1X16, + .bus_flags =3D DRM_BUS_FLAG_DE_HIGH | + DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE, +}; + static int st7789v_get_modes(struct drm_panel *panel, struct drm_connector *connector) { @@ -446,12 +469,14 @@ static void st7789v_remove(struct spi_device *spi) =20 static const struct spi_device_id st7789v_spi_id[] =3D { { "st7789v", (unsigned long) &default_panel }, + { "t28cp45tn89-v17", (unsigned long) &t28cp45tn89_panel }, { } }; MODULE_DEVICE_TABLE(spi, st7789v_spi_id); =20 static const struct of_device_id st7789v_of_match[] =3D { { .compatible =3D "sitronix,st7789v", .data =3D &default_panel }, + { .compatible =3D "inanbo,t28cp45tn89-v17", .data =3D &t28cp45tn89_panel = }, { } }; MODULE_DEVICE_TABLE(of, st7789v_of_match); --=20 2.39.2