From mboxrd@z Thu Jan 1 00:00:00 1970 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 72E03F3ED43 for ; Sat, 11 Apr 2026 12:11:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D1B1210E1DA; Sat, 11 Apr 2026 12:11:08 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.b="lvEe87M6"; dkim=pass (2048-bit key; unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="VuFUwNLZ"; dkim-atps=neutral Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8D54110E1D9 for ; Sat, 11 Apr 2026 12:11:07 +0000 (UTC) Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 63B4080V3909474 for ; Sat, 11 Apr 2026 12:11:06 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= EacYV252Ylxyrr9FQ/70zKkziBbfMroxAzrIkM+nfi0=; b=lvEe87M6jsa0fiQz EevMhv+vCjFZzcBpxS3nTLtWlAuloiN5msMh/997rSEatRWHi/pXInJFWz91F6vk nS93IpmnyUM+dnagzOc96LAGLqxKjukSRZwiZ8LDE5In6Vy20v26RDQFcvuPYV9L sojz9J7FJTit2DxkU50Br1DNriG1MpoEJdb3E3y67nroorq6WD8PujV4inA2AiSM N4zLggm1lHtXu4T50gZt3hLz9HfPao9gvvTMhBKWK68oRCGLJt2qb/xdz0Mbrmll 6PiCm7CYNexqtlOhgkaMP7lvN8a9lV/dygGiYgX8MDeCA0rUOboNal0NHkXadNJC 6mswyg== Received: from mail-qt1-f197.google.com (mail-qt1-f197.google.com [209.85.160.197]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4dfew00nbj-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Sat, 11 Apr 2026 12:11:06 +0000 (GMT) Received: by mail-qt1-f197.google.com with SMTP id d75a77b69052e-50b323c43fdso53419831cf.2 for ; Sat, 11 Apr 2026 05:11:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1775909466; x=1776514266; darn=lists.freedesktop.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=EacYV252Ylxyrr9FQ/70zKkziBbfMroxAzrIkM+nfi0=; b=VuFUwNLZY4oevP+2AUiKmd+Ygo7BRZsd8rkpNLznKOHCvEiEOC5lJvzIeSEgwoBl4W EEO3zPUah96lYkbVxnqptScP7DXJywmpu9WY0N4M8OFC/JAV1Q0RwNYAF41zt7kW74CD r1enk8Rk8oGCB8wX6RW0MdqGBIkgtJBtO39I+pa1YpN/sspcFZDXDcu4VWRf4VihiBCo tX8LYfT6Q6LE0PpE+wOiLNsS0lWXgTH0+ulM4bhFkSIaaOhxup458H/0ow7ILsIUTGHh UbS2l5ZwGbXRwlH30lr6CElRqtLtwtAYosM2/lJeqxgSe5MaXIRH3kslheWmbh+ZcyV3 RRTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775909466; x=1776514266; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=EacYV252Ylxyrr9FQ/70zKkziBbfMroxAzrIkM+nfi0=; b=kuCVjCq72RijijHJ03NgwRmqpgFLiu4oQU3p4oO/uj+kEPw2aM90KJhiaaBwWM7rAx MGLVCYMhhaWPmn3PsIKHj9uybh3xWiAhPTtYKJbEdHUPhQWKBb8l7g6jN8PN+/wwLZrL jX7fadtyAa4/iFXtup+ecy8MUT8D65Zh2JlmJdVKhMs7SxcCY75Qr2O7ZJoDG4moHi1B HIX5g6hCX/0qsIoVacg8Iy+wDm4wfTHK5CZKTTN1U+cK+TuJdxDd7zK1IbadxvJaCwre u9rApCf/przvQve0A/ChtOiVLEq55BhTeNyqGOp6rpE/cPPM+BwiWF/f0xse8W/4Peoo 7qVA== X-Gm-Message-State: AOJu0YzNEd/wkcp9LHUxRl+45WIcejevm/EKlQiXc2/T/jJyizm6Jivy JtUPxHMJfaUvuIurrJPbJae4An6lT6YQVDTqtV/L/vxEk1KKkj3vzP0rkmpxXGNnBWpUJIZ+BYz IpsL1zbQi6B859uwJJulSwbib/CHHBHONhv+AnF8g0EKPAM7F/tvc3AS+3v8nmYydmvv22uM= X-Gm-Gg: AeBDietz27raXB3KutgKWkffJLUWwYt87hi+fOY2sxLBFtETHXCWjuV7CQzYOiiePAt 1IUaMjcyiDMWzamxmQRk2dyahK8gO8sUL9b93ebOArZPmk2IpsbLaa1+Czp09SDfsGmxTMz5JgX tqMQ5vFlUCvNm88w1269g9n55e8TanKN85B4OeNcdJ5s6lBnmgQhGy+rWb3Rvnpdk1Od8VAHPYs 1F8gkrTB0M139ojyprNcA59+jUxfgkEoPGQxq6w5AhD3ZlbhcmqNWBCdqole3GNQRpoPOl+4kR6 FlhYSfkm1tnWe8M4IgKhFEzq7rnozBo6pDU12nWH313zi+IQgEU0ZVfX2GPVlZ3eQWrr1IgYtVo nZgd+TB9w6GUcQc26DhNM6HiHCWnMmtO8Q7I/pDx+I8/hgReG8soPiaj6c/VaKLvrM4YfkiBNTX oVZZafMG5Ihl2BLbIkIYbxwzycEqeTarEoh6s= X-Received: by 2002:a05:622a:1189:b0:50d:7504:b719 with SMTP id d75a77b69052e-50dd5bd1ef1mr100580391cf.52.1775909465964; Sat, 11 Apr 2026 05:11:05 -0700 (PDT) X-Received: by 2002:a05:622a:1189:b0:50d:7504:b719 with SMTP id d75a77b69052e-50dd5bd1ef1mr100579891cf.52.1775909465528; Sat, 11 Apr 2026 05:11:05 -0700 (PDT) Received: from umbar.lan (2001-14ba-a073-af00-264b-feff-fe8b-be8a.rev.dnainternet.fi. [2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-38e495b4e73sm11906291fa.41.2026.04.11.05.11.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 11 Apr 2026 05:11:03 -0700 (PDT) From: Dmitry Baryshkov Date: Sat, 11 Apr 2026 15:10:28 +0300 Subject: [PATCH v2 08/21] drm/panel: himax-hx8394: set prepare_prev_first MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260411-waveshare-dsi-touch-v2-8-75cdbeac5156@oss.qualcomm.com> References: <20260411-waveshare-dsi-touch-v2-0-75cdbeac5156@oss.qualcomm.com> In-Reply-To: <20260411-waveshare-dsi-touch-v2-0-75cdbeac5156@oss.qualcomm.com> To: Neil Armstrong , Jessica Zhang , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Cong Yang , Ondrej Jirman , Javier Martinez Canillas , Jagan Teki , Liam Girdwood , Mark Brown , Linus Walleij , Bartosz Golaszewski Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org X-Mailer: b4 0.15.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1037; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=DoendjqYMNCpaNDLx5nJc92Y8UtuCTST95sXT4ei12s=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBp2jpFW0vQ244JNcxKBxL5K1n8VoGz1ZRi3WrEQ 5MkXyOolKCJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCado6RQAKCRCLPIo+Aiko 1VKVB/4ix4mqEZIje288JrijjZjm+C+aALrGxc+Zgv/a4M8FE9MuOwcE/LLV2qNiMBQ2DBwcTM3 Cv5q7Rbyi8yCqXWubKIsKGFzkrxWqqubVpIIRco4W2E7MrAOfqaBH8USgRdOSmYqJYx9gHqGANo FPZE8gnLR9Ytjnn12c0Rn4nsxOe3ksg4j3jwtBK4lpJSd9Ki+j7H8FqXQMzr6dVMP3ffuy/hOjB mlbQ9jyDfbJslkpyXU542botlevdq0Hxe73OcmwOgEYbdJLcj3wp9knZBh+l57zyfAcSwEPkdOU f7iBc+j3jB6DPyIMi0pEMOi7EQbPvpCRmoLJym+b4JBdYJN6 X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDExMDEwMiBTYWx0ZWRfX9EST9TsCS+Xt n/pE6g/DAJHxoyg6UV1H/e58Hdz+L/sLuGzODsalsTkaETSTymDw+v5RxwmwYTMMnJpXIAqtPtz Fy0/TF/DQO4iwYoOZbcJ3FmTG40sBYpvz2DkJyHrl8/ncsA+XlFMFXe/8W9S83t8hCQ43RQRscB 0jWGDm44MVUk+4j2UGNgDETKLRaOvXSe57ZZ7wWARyiRtEXvVf1GPIbFk4iwWPgujsApzpa0Ghg DJvfqcylBC82a60jdUtXN4x9CNUbz3wVoUd4/DQ3YCDoL1+1LfRps9apUD1OKVzXDU0wRL29u4V oS7ubWy77e52VEe/Efeq+FbEZcvTKwq61s/HFQpszADHhikPZRgNwUZqGJMsSv1NALlLfN2vx7c ieBnidtWSI4j/wjjUSuoNTMJ5jzJJMMwZCQVWyzLL4y7fE/IG4tY8VfcAifT6+5vFfZ5DyJ9QPp cmOj4Hy6efhZv371eEg== X-Proofpoint-GUID: nssKkhp-1s6a_KXZff1QdKiyBPZ1zIF9 X-Authority-Analysis: v=2.4 cv=AofeGu9P c=1 sm=1 tr=0 ts=69da3a5a cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=VwQbUJbxAAAA:8 a=20KFwNOVAAAA:8 a=EUspDBNiAAAA:8 a=ic6V0yA_i5s2A4o5CdYA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-ORIG-GUID: nssKkhp-1s6a_KXZff1QdKiyBPZ1zIF9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-11_03,2026-04-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 adultscore=0 phishscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 suspectscore=0 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604110102 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Sending DSI commands from the prepare() callback requires DSI link to be up at that point. For DSI hosts is guaranteed only if the panel driver sets the .prepare_prev_first flag. Set it to let these panels work with the DSI hosts which don't power on the link in their .mode_set callback. Reviewed-by: Linus Walleij Reviewed-by: Javier Martinez Canillas Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/panel/panel-himax-hx8394.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-himax-hx8394.c b/drivers/gpu/drm/panel/panel-himax-hx8394.c index c4d3e09a228d..d64f3521eb15 100644 --- a/drivers/gpu/drm/panel/panel-himax-hx8394.c +++ b/drivers/gpu/drm/panel/panel-himax-hx8394.c @@ -792,6 +792,8 @@ static int hx8394_probe(struct mipi_dsi_device *dsi) if (ret) return ret; + ctx->panel.prepare_prev_first = true; + drm_panel_add(&ctx->panel); ret = mipi_dsi_attach(dsi); -- 2.47.3