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 418FD35F184; Fri, 7 Aug 2026 15:28:45 +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=1786116526; cv=none; b=sfCVJb5WhV8fP8R2i2ayKW3L9xr8rdXyU4/K0t46ZdQbnljkWDTgn5JqNwqLpNxejO6ejgBast5vEz3ubI/BKxUjYTI2RWF2wrlBbXZCKN2Me0/iyaGeaoQFAMRmVIxXb7V2Zmx5VgxzDwDHnnX2eNVBM6rfB7P+cuX2XeAlAzE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786116526; c=relaxed/simple; bh=REcPbFk+7p7VQlGruiUEiLs/R8rZLJhpU1qyxGdxG20=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mbCmTZCpaF7riZ0QehVDYT4hnjIio+ZM7uxlWS15glIbKMEsaqoc8+rfRjXCLDPdsJV9mmgaLT6QvpMRqMKwwPATbM0aYb54eqQxZTqS/K3TPN33sxf3gptLKiargV3jJYKM47R98E7YAzPRJZ92TC4gWp5M/3yJ9Eg0vYFZu4U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=AmaJHHww; 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="AmaJHHww" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9C18F1F00A3A; Fri, 7 Aug 2026 15:28:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786116525; bh=f+BX2zBKgjIjnOnJ5ouZXeir9BIs9uvgjBfVO/cUqEE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=AmaJHHwwzopohQXAe3Ixs2LMruqEH2XBx950LqZrlait0D8SSnSjIjREny5EblHfy fMUs3d654pXjCSypeHZPgp487vgfD+cXN1t9of8bUDrG4FTaoPlhYnbG0jVBa43RJs DDhuQEeAZdXPo7ecNOCNFc6uQvF7omaEd1WFNubA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tommaso Merciai , Biju Das , Sasha Levin Subject: [PATCH 6.6 217/261] drm: renesas: rzg2l_mipi_dsi: Increase reset deassertion delay Date: Fri, 7 Aug 2026 16:39:34 +0200 Message-ID: <20260807143420.048628128@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260807143415.358597922@linuxfoundation.org> References: <20260807143415.358597922@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Biju Das [ Upstream commit 7cbba8a8ba0219a267844d3116dbc77cecb4fcf8 ] 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: Sasha Levin 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; }