From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 C0C0440963F; Thu, 30 Jul 2026 14:36:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785422209; cv=none; b=BoD+s1HoVJh6Ww8Z0cHBVBdlm6y3uu+9LYYty9+4IULfIDZvYZ7HxefdZrdagOrnEcAsNSyha0qAiQ8MEpI9jmDC9n4B33h4XCq2n7Ef02KV9DkXMUpbvgjzjCkQhotnAReixXL5Bo2yTtn8/kTGnwTcpubMNYQSqaAKaFPUpAA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785422209; c=relaxed/simple; bh=dfYX5OwP485otFWSejc5o+sY5PIgaUgelt9FSzsMQSE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JCgF60ZQhW5Zu07EpGUAfUef83jMR/Q5j+RIG9IgKqzbZxUoEH2KXS5TMbdmVTfLMxSjk3jRevSPBFN/Lyqf8tYq2cPJzkRTITaNFY1E7JX2+r1jU/GnmHHXWZwNTCapwu5zN78YYOeyHeTMJdmOHkdi11ZoND/KktZl9+yEN6k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=UB9ZDY4I; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="UB9ZDY4I" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CC4391F000E9; Thu, 30 Jul 2026 14:36:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1785422208; bh=Q0fT3IOopQDHYoebTNj61/l2QO6GKaW+ZMoUIA/x8c4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=UB9ZDY4I6qPez3grs8os+20YEtkAXU1GXYHA7lC5y4w8DBBRBfKa8F97YEGyc5tNs rFEQn9b0v8sJU5uuiBbD+7GDziVQcQPbno6au4Fgn0b+0uu+n7wUPULbZWZ9W1qbO7 WyFIJxNHjI5++rbyd69OEIwsuycDL1Ar+kCmRNJY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tommaso Merciai , Biju Das Subject: [PATCH 7.1 359/744] drm: renesas: rzg2l_mipi_dsi: Increase reset deassertion delay Date: Thu, 30 Jul 2026 16:10:32 +0200 Message-ID: <20260730141451.916604240@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260730141444.267951807@linuxfoundation.org> References: <20260730141444.267951807@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Biju Das commit 7cbba8a8ba0219a267844d3116dbc77cecb4fcf8 upstream. The RZ/G2L hardware manual (Rev. 1.50, May 2025), Section 34.4.2.1, requires waiting at least 1 msec after deasserting the CMN_RSTB signal before the DSI-Tx module is ready. Increase the delay from 1 usec to 1 msec by replacing udelay(1) with fsleep(1000) for RZ/G2L SoCs. Fixes: 7a043f978ed1 ("drm: rcar-du: Add RZ/G2L DSI driver") Cc: stable@vger.kernel.org Reviewed-by: Tommaso Merciai Tested-by: Tommaso Merciai Link: https://patch.msgid.link/20260330104450.128512-3-biju.das.jz@bp.renesas.com Signed-off-by: Biju Das Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c @@ -528,7 +528,7 @@ static int rzg2l_mipi_dsi_dphy_init(stru if (ret < 0) return ret; - udelay(1); + fsleep(1000); return 0; }