From nobody Tue Dec 23 23:48:04 2025 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 0E195664A7 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=1706608351; cv=none; b=fhqrqCg9ncXGOqabz+dJB1ozDE9B0aoC3kitZR7NDwbiKn5rVbyeNYujTejqQ8ab6dfkJ/a9dmC78LfEJjvriOWyeSp+NXIIIp7c5ePmUTAXN2AToo1C5rYiSgDneSHTFjHMD5w5jjBWhHZJ4YaBF5t8Lv0ic0/XMX5WgP85WFw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706608351; c=relaxed/simple; bh=g5rkrsUczvT98u64IjHetISOxo+BA6WM15O5Bq18z8g=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=st/LDS2znZmkppGub6JzyF7SsCGhBncHMZ8XNUjCCU0gqQQcHd9g8XnKZGlhaZAWzBGYTEjmgptDCGlmfWXRCPSvtqrcmsVmC3G19L6r4tSBWzf517vHVza4gQMSCqgdjRKSKDmJgSTNAnEaGRIFyJ0nX3u+SRFspVH73G0hfkw= 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: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 =3D <0x77>; gpio-controller; #gpio-cells =3D <2>; + /* If these interrupts don't work, please update your firmware */ interrupt-controller; interrupt-parent =3D <&gpio5>; interrupts =3D <9 IRQ_TYPE_EDGE_FALLING>; --=20 2.39.2