From nobody Mon Feb 9 09:28:55 2026 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [80.241.56.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5DB3B6A33B; Fri, 7 Nov 2025 23:04:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762556670; cv=none; b=ipOTL6oBk0Ta6ctDFo0fAKy9zMHVNxsSLgtiLClmvqBV2xr8OuBnWd/U98rlKPcvETCX1TSSKAql3WcbYCvDNC+riGROedW+Sel9Mkehv13sIPPaXQwpRthKeGd4GV7YbDI2RAqf7BrhsCCny8B/LrVCVubsXn4KVR03MBb8lpM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762556670; c=relaxed/simple; bh=1itBNKxvB8gKjd/v4bwE2PMFH4zdgibKRCKVc8YZEKA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=EnNc0XvKGMRPwRvTf96X40CzkVWwmm9bpftQuLfLw3kos6k+Af2RDQq8L/jD6LpzcX1CFEZnu8tIHBS0jP05d9b0y+kKP+ZbtEROVNzd7Re2Twb08Z9dZ55ltDpKi647bXJ5FfT/+8PYYHHVPyRo8YGonXET9/zNYqyAXBL6NLA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=k3zgUdcj; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=txLJF6+K; arc=none smtp.client-ip=80.241.56.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="k3zgUdcj"; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="txLJF6+K" Received: from smtp202.mailbox.org (smtp202.mailbox.org [IPv6:2001:67c:2050:b231:465::202]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4d3F4V1sJPz9tky; Sat, 8 Nov 2025 00:04:26 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1762556666; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=KOA+hwUJRwzGvUxdumSct2dsv0UMU4LHAXdtncVDhPY=; b=k3zgUdcjTWMufyhpZdoohbSuZZXkg2ba4gDJIKdoVlk+2tvioFukLLbqgM2+VHccTRKDSQ z7LkFT15ZeZ34mAhOM8wbNkj6xwy88FAXvPmKeEsl48YEW3lha8t6xc7V3DbHyjr7nCT9p 0TpWURIDfInM1LzsB6+sf3UIR7vo4q5lrs7JTuytvNxWFrOa/h/CvSpBRWtc4vGIHBmfSN 3oAfjFpQIcU0FTvdOnj21T6A92aqbRUdWEo4YZvqRS4kI9hiaY1DNYEIr+He/ZMTVs67Le bk1sEm09DCSVIc8+0EYw1fUYX/8kyWKJDuIununGA+z14YxQQat6Kttl0XNgYg== Authentication-Results: outgoing_mbo_mout; dkim=pass header.d=mailbox.org header.s=mail20150812 header.b=txLJF6+K; spf=pass (outgoing_mbo_mout: domain of marek.vasut+renesas@mailbox.org designates 2001:67c:2050:b231:465::202 as permitted sender) smtp.mailfrom=marek.vasut+renesas@mailbox.org From: Marek Vasut DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1762556664; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=KOA+hwUJRwzGvUxdumSct2dsv0UMU4LHAXdtncVDhPY=; b=txLJF6+K7WeSnsTLyO1Bnh/teX0M9Be8jRJ91wOv7t09SOyBGl/sTWhw8YWYfgu1+b/tIY 6jQE2o+jmYHb5QFwDmrqHXiH09Xru/VuncngabvOxgPRlZ4EXdIizeCe4w0Z0YNfssqYBQ cLas0AQeX43GWvW/rNAH4WQ9x2XI8LJ5IGihWLS7iCjLstpIQd8UZfEXBG0ar6vetEDnN4 Z7kFLYzYEWLocr3z0IJkFeGsrFuGu1VP37ICjmNXchXNEXzqBCnY1m93FChG+Um8Li0dFX 8TcD9niFTRmqHiQ5W1E9ob9Na8qNyCVmSswyEjTiGKPTVEFWOE8sRWPDT1UAgg== To: dri-devel@lists.freedesktop.org Cc: Marek Vasut , David Airlie , Geert Uytterhoeven , Kieran Bingham , Laurent Pinchart , Maarten Lankhorst , Magnus Damm , Maxime Ripard , Simona Vetter , Thomas Zimmermann , Tomi Valkeinen , linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: [PATCH] drm/rcar-du: dsi: Handle both DRM_MODE_FLAG_N.SYNC and !DRM_MODE_FLAG_P.SYNC Date: Sat, 8 Nov 2025 00:04:10 +0100 Message-ID: <20251107230419.471866-1-marek.vasut+renesas@mailbox.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-MBO-RS-ID: 2e5fe89e8ece91143de X-MBO-RS-META: 7qbcnczhz7r1s9zthm5qjinkkzpqtb6s X-Rspamd-Queue-Id: 4d3F4V1sJPz9tky Content-Type: text/plain; charset="utf-8" Since commit 94fe479fae96 ("drm/rcar-du: dsi: Clean up handling of DRM mode= flags") the driver does not set TXVMVPRMSET0R_VSPOL_LOW and TXVMVPRMSET0R_HSPOL_LOW for modes which set neither DRM_MODE_FLAG_[PN].SYNC. The previous behavior was to assume that neither flag means DRM_MODE_FLAG_N.SYNC . Restore the previous behavior for maximum compatibility. Fixes: 94fe479fae96 ("drm/rcar-du: dsi: Clean up handling of DRM mode flags= ") Signed-off-by: Marek Vasut --- Cc: David Airlie Cc: Geert Uytterhoeven Cc: Kieran Bingham Cc: Laurent Pinchart Cc: Maarten Lankhorst Cc: Magnus Damm Cc: Maxime Ripard Cc: Simona Vetter Cc: Thomas Zimmermann Cc: Tomi Valkeinen Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org --- drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c b/drivers/gpu/= drm/renesas/rcar-du/rcar_mipi_dsi.c index 9413b76d0bfce..98bd7f40adbea 100644 --- a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c @@ -492,9 +492,11 @@ static void rcar_mipi_dsi_set_display_timing(struct rc= ar_mipi_dsi *dsi, =20 /* Configuration for Video Parameters, input is always RGB888 */ vprmset0r =3D TXVMVPRMSET0R_BPP_24; - if (mode->flags & DRM_MODE_FLAG_NVSYNC) + if ((mode->flags & DRM_MODE_FLAG_NVSYNC) || + !(mode->flags & DRM_MODE_FLAG_PVSYNC)) vprmset0r |=3D TXVMVPRMSET0R_VSPOL_LOW; - if (mode->flags & DRM_MODE_FLAG_NHSYNC) + if ((mode->flags & DRM_MODE_FLAG_NHSYNC) || + !(mode->flags & DRM_MODE_FLAG_PHSYNC)) vprmset0r |=3D TXVMVPRMSET0R_HSPOL_LOW; =20 vprmset1r =3D TXVMVPRMSET1R_VACTIVE(mode->vdisplay) --=20 2.51.0