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 0C77D3438B7; Thu, 30 Jul 2026 15:39:18 +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=1785425959; cv=none; b=BYgY76ckFjaWbWf6njYWZ0yEZlqZDPrukinN6G/1IKdaGPa4Pl3oz10w4YjSxhwM+QrHbUtlgMYpEHxKy60JD+k2XZdApiDVkOHKDV9p2zuuVAyu0/RtCUFGuUFC8t8TCQQNRQ52+y4gdHHFP2aPbNM1pdUk+i64kOZqH5Fa1cI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785425959; c=relaxed/simple; bh=+ve9j6TdnOtlPatzNu/t9xcUovWseak9aGqYXcrbqck=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eQPU9+uH9sm49hKjfVcWbkB3WYdMl7h2I0r7CeH9BdJ8oWBUuX16ZyrfRHeRARNr0DbK+YThcpvnyIBUzHOwLC1ucEKu8FSraPGWSs71Gkc6bclyeLWFqLQbECpHml+yeEd2bNr8ihUkotIp2slLRId/jtz5cZwALkSY7lAU6tQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Rr7d+rQ5; 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="Rr7d+rQ5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6366D1F000E9; Thu, 30 Jul 2026 15:39:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1785425957; bh=G3m9SQ4ba71ZjZOnwoW5S7bC+LzuuNKmVGsyzIMLMU0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Rr7d+rQ5Zwr3Ink/4aSn1V4t9kW60/sNDG9G0bjqFU1KTGzNUwx4zd9Qs2OimpTzL FIal8ef6QOP+9yNBgmh+WTF6rdVTdNPIcpachpYMN0PhFhjfTBpOEizMARgE8SHMoJ 2AEDUSoByOe24uvj0vql9LnkUrUFAJkjL+McBNi4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tommaso Merciai , Biju Das Subject: [PATCH 6.12 251/602] drm: renesas: rzg2l_mipi_dsi: Increase reset deassertion delay Date: Thu, 30 Jul 2026 16:10:43 +0200 Message-ID: <20260730141441.245526526@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260730141435.976815864@linuxfoundation.org> References: <20260730141435.976815864@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-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 @@ -238,7 +238,7 @@ static int rzg2l_mipi_dsi_dphy_init(stru if (ret < 0) return ret; - udelay(1); + fsleep(1000); return 0; }