From patchwork Mon Jan 31 16:47:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Quentin Schulz X-Patchwork-Id: 12731497 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 EF6C9C433F5 for ; Tue, 1 Feb 2022 09:01:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CF16210EA39; Tue, 1 Feb 2022 09:01:29 +0000 (UTC) Received: from mslow1.mail.gandi.net (mslow1.mail.gandi.net [217.70.178.240]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6244010E264 for ; Mon, 31 Jan 2022 17:15:39 +0000 (UTC) Received: from relay10.mail.gandi.net (unknown [217.70.178.230]) by mslow1.mail.gandi.net (Postfix) with ESMTP id 16147D4C5B for ; Mon, 31 Jan 2022 16:47:48 +0000 (UTC) Received: (Authenticated sender: foss@0leil.net) by mail.gandi.net (Postfix) with ESMTPSA id 30D2F240008; Mon, 31 Jan 2022 16:47:41 +0000 (UTC) From: quentin.schulz@theobroma-systems.com To: Subject: [PATCH 2/3] drm/panel: ltk050h3146w: add support for Leadtek LTK050H3148W-CTA6 variant Date: Mon, 31 Jan 2022 17:47:22 +0100 Message-Id: <20220131164723.714836-2-quentin.schulz@theobroma-systems.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220131164723.714836-1-quentin.schulz@theobroma-systems.com> References: <20220131164723.714836-1-quentin.schulz@theobroma-systems.com> MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 01 Feb 2022 09:01:14 +0000 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, airlied@linux.ie, Quentin Schulz , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Quentin Schulz , robh+dt@kernel.org, thierry.reding@gmail.com, Klaus Goger , sam@ravnborg.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Klaus Goger The LTK050H3148W-CTA6 is a 5.0" 720x1280 DSI display, whose driving controller is a Himax HX8394-F, slightly different from LTK050H3146W by its init sequence, mode details and mode flags. Cc: Quentin Schulz Signed-off-by: Klaus Goger Signed-off-by: Quentin Schulz Reviewed-by: Paul Kocialkowski --- .../drm/panel/panel-leadtek-ltk050h3146w.c | 87 +++++++++++++++++++ 1 file changed, 87 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c index 67eb474e28c6..3be815c3be68 100644 --- a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c +++ b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c @@ -253,6 +253,89 @@ struct ltk050h3146w *panel_to_ltk050h3146w(struct drm_panel *panel) return ret; \ } while (0) +static int ltk050h3148w_init_sequence(struct ltk050h3146w *ctx) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + /* + * Init sequence was supplied by the panel vendor without much + * documentation. + */ + dsi_dcs_write_seq(dsi, 0xb9, 0xff, 0x83, 0x94); + dsi_dcs_write_seq(dsi, 0xb1, 0x50, 0x15, 0x75, 0x09, 0x32, 0x44, 0x71, + 0x31, 0x55, 0x2f); + dsi_dcs_write_seq(dsi, 0xba, 0x63, 0x03, 0x68, 0x6b, 0xb2, 0xc0); + dsi_dcs_write_seq(dsi, 0xd2, 0x88); + dsi_dcs_write_seq(dsi, 0xb2, 0x00, 0x80, 0x64, 0x10, 0x07); + dsi_dcs_write_seq(dsi, 0xb4, 0x05, 0x70, 0x05, 0x70, 0x01, 0x70, 0x01, + 0x0c, 0x86, 0x75, 0x00, 0x3f, 0x01, 0x74, 0x01, 0x74, + 0x01, 0x74, 0x01, 0x0c, 0x86); + dsi_dcs_write_seq(dsi, 0xd3, 0x00, 0x00, 0x07, 0x07, 0x40, 0x1e, 0x08, + 0x00, 0x32, 0x10, 0x08, 0x00, 0x08, 0x54, 0x15, 0x10, + 0x05, 0x04, 0x02, 0x12, 0x10, 0x05, 0x07, 0x33, 0x34, + 0x0c, 0x0c, 0x37, 0x10, 0x07, 0x17, 0x11, 0x40); + dsi_dcs_write_seq(dsi, 0xd5, 0x19, 0x19, 0x18, 0x18, 0x1b, 0x1b, 0x1a, + 0x1a, 0x04, 0x05, 0x06, 0x07, 0x00, 0x01, 0x02, 0x03, + 0x20, 0x21, 0x18, 0x18, 0x22, 0x23, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18); + dsi_dcs_write_seq(dsi, 0xd6, 0x18, 0x18, 0x19, 0x19, 0x1b, 0x1b, 0x1a, + 0x1a, 0x03, 0x02, 0x01, 0x00, 0x07, 0x06, 0x05, 0x04, + 0x23, 0x22, 0x18, 0x18, 0x21, 0x20, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18); + dsi_dcs_write_seq(dsi, 0xe0, 0x00, 0x03, 0x09, 0x11, 0x11, 0x14, 0x18, + 0x16, 0x2e, 0x3d, 0x4d, 0x4d, 0x58, 0x6c, 0x72, 0x78, + 0x88, 0x8b, 0x86, 0xa4, 0xb2, 0x58, 0x55, 0x59, 0x5b, + 0x5d, 0x60, 0x64, 0x7f, 0x00, 0x03, 0x09, 0x0f, 0x11, + 0x14, 0x18, 0x16, 0x2e, 0x3d, 0x4d, 0x4d, 0x58, 0x6d, + 0x73, 0x78, 0x88, 0x8b, 0x87, 0xa5, 0xb2, 0x58, 0x55, + 0x58, 0x5b, 0x5d, 0x61, 0x65, 0x7f); + dsi_dcs_write_seq(dsi, 0xcc, 0x0b); + dsi_dcs_write_seq(dsi, 0xc0, 0x1f, 0x31); + dsi_dcs_write_seq(dsi, 0xb6, 0xc4, 0xc4); + dsi_dcs_write_seq(dsi, 0xbd, 0x01); + dsi_dcs_write_seq(dsi, 0xb1, 0x00); + dsi_dcs_write_seq(dsi, 0xbd, 0x00); + dsi_dcs_write_seq(dsi, 0xc6, 0xef); + dsi_dcs_write_seq(dsi, 0xd4, 0x02); + dsi_dcs_write_seq(dsi, 0x11); + dsi_dcs_write_seq(dsi, 0x29); + + ret = mipi_dsi_dcs_set_tear_on(dsi, 1); + if (ret < 0) { + dev_err(ctx->dev, "failed to set tear on: %d\n", ret); + return ret; + } + + msleep(60); + + return 0; +} + +static const struct drm_display_mode ltk050h3148w_mode = { + .hdisplay = 720, + .hsync_start = 720 + 12, + .hsync_end = 720 + 12 + 6, + .htotal = 720 + 12 + 6 + 24, + .vdisplay = 1280, + .vsync_start = 1280 + 9, + .vsync_end = 1280 + 9 + 2, + .vtotal = 1280 + 9 + 2 + 16, + .clock = 59756, + .width_mm = 62, + .height_mm = 110, +}; + +static const struct ltk050h3146w_desc ltk050h3148w_data = { + .mode = <k050h3148w_mode, + .init = ltk050h3148w_init_sequence, + .mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE, +}; + static int ltk050h3146w_init_sequence(struct ltk050h3146w *ctx) { struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); @@ -657,6 +740,10 @@ static const struct of_device_id ltk050h3146w_of_match[] = { .compatible = "leadtek,ltk050h3146w-a2", .data = <k050h3146w_a2_data, }, + { + .compatible = "leadtek,ltk050h3148w", + .data = <k050h3148w_data, + }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, ltk050h3146w_of_match);