From patchwork Sat Apr 22 20:50:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 13221106 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 48963C77B78 for ; Sat, 22 Apr 2023 20:50:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A428110E1CC; Sat, 22 Apr 2023 20:50:45 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4B90B10E1A7 for ; Sat, 22 Apr 2023 20:50:32 +0000 (UTC) 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 A611C61578; 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 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 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Krzysztof Kozlowski , Gerald Loacker , Sam Ravnborg , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Rob Herring , Thierry Reding , Michael Riesch Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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/drm/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 = { .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, }; +static const struct drm_display_mode t28cp45tn89_mode = { + .clock = 6008, + .hdisplay = 240, + .hsync_start = 240 + 38, + .hsync_end = 240 + 38 + 10, + .htotal = 240 + 38 + 10 + 10, + .vdisplay = 320, + .vsync_start = 320 + 8, + .vsync_end = 320 + 8 + 4, + .vtotal = 320 + 8 + 4 + 4, + .width_mm = 43, + .height_mm = 57, + .flags = DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC, +}; + struct st7789_panel_info default_panel = { .mode = &default_mode, .invert_mode = true, @@ -181,6 +196,14 @@ struct st7789_panel_info default_panel = { DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE, }; +struct st7789_panel_info t28cp45tn89_panel = { + .mode = &t28cp45tn89_mode, + .invert_mode = false, + .bus_format = MEDIA_BUS_FMT_RGB565_1X16, + .bus_flags = 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) static const struct spi_device_id st7789v_spi_id[] = { { "st7789v", (unsigned long) &default_panel }, + { "t28cp45tn89-v17", (unsigned long) &t28cp45tn89_panel }, { } }; MODULE_DEVICE_TABLE(spi, st7789v_spi_id); static const struct of_device_id st7789v_of_match[] = { { .compatible = "sitronix,st7789v", .data = &default_panel }, + { .compatible = "inanbo,t28cp45tn89-v17", .data = &t28cp45tn89_panel }, { } }; MODULE_DEVICE_TABLE(of, st7789v_of_match);