From patchwork Tue Jan 30 09:52:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 768263 Received: from mail.zeus03.de (www.zeus03.de [194.117.254.33]) (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 0E167664A6 for ; Tue, 30 Jan 2024 09:52:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706608350; cv=none; b=VYhJLPW0Sg56i6FV9X3nBPI9rkTUXNhaCuyD+3lO21KW5GiSvDuHPY4VQDmwh1UiBKZgxrJ1N5ByKj/le8CR9m78nstEcXC9FEz0hHJKgrTdNThLnmmY/jtparxQf/FFyr3/ROEWPqQdcM+yR9rElKufDEF/2vIXYRZobYe7BCc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706608350; c=relaxed/simple; bh=g5rkrsUczvT98u64IjHetISOxo+BA6WM15O5Bq18z8g=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=JNyP+Yr8vHKcq47MAvkx0S+rpPylbmjLOT28oBt1M/7Yxxedl3720lMaNq9A8GZjjNPnxGTQW+Kq4qhGmf77OgtH/0ci4alEHKiju5R0+QZpFJgEFzrRTfGzwJrZXa4Vub82l+mMICQdhB8+eMU6vU18BkUvbEFr274RYX/81JM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=TcpH6VlP; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="TcpH6VlP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=from:to:cc:subject:date:message-id :mime-version:content-transfer-encoding; s=k1; bh=eMpBOKcHgjOgUu 6e0neo1Xoqw8sM/5NUtcgLJ0eoc9w=; b=TcpH6VlPrVDpYNb89HzqoMZMVwpoPp ByXNStY2Nw+iq2OQokAZfA0LfEF/FsCJJ56MBIwXxliwrkEHJeM8ImdK5WMaf8ca EqNbRRdr+OqhBOZbD1GpPfIzIZeaK7t03XR+4kMNq6W04vhnLtFTBWggvRIns4qo gKk90EhhBm4QaHjGvby4bkbccsWbMwy1MjBo5XZID1bk0oNa8bjFZfDNZcyNDX6K COmnxNzCjSv5tPPuLhetN0puHmLqOw936p8f41CqLOkQS56T4UNnH23H96xXFp+7 u8TvrtEqnXBRvcWEJkagetICxazv1W8gvXvSR/qfCkTLt3GRovl38MAg== Received: (qmail 2786307 invoked from network); 30 Jan 2024 10:52:26 +0100 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 30 Jan 2024 10:52:26 +0100 X-UD-Smtp-Session: l3s3148p1@vQM5uCYQZOdehhtJ From: Wolfram Sang To: linux-renesas-soc@vger.kernel.org Cc: Wolfram Sang , Geert Uytterhoeven , Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: renesas: ulcb-kf: document a problemw with old firmware Date: Tue, 30 Jan 2024 10:52:22 +0100 Message-Id: <20240130095222.11177-1-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Old firmware set the GPIO to output, so no interrupts could be read. Newer firmware does this correctly. The exact version could not be determined, sadly. Signed-off-by: Wolfram Sang --- arch/arm64/boot/dts/renesas/ulcb-kf.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi index 84b0976503b7..45e55ce760d1 100644 --- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi +++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi @@ -324,6 +324,7 @@ gpio_exp_77: gpio@77 { reg = <0x77>; gpio-controller; #gpio-cells = <2>; + /* If these interrupts don't work, please update your firmware */ interrupt-controller; interrupt-parent = <&gpio5>; interrupts = <9 IRQ_TYPE_EDGE_FALLING>;