From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-14.mta0.migadu.com [91.218.175.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C6E153A1687 for ; Fri, 11 Sep 2026 15:29:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789140564; cv=none; b=Rtn9epcM89Jzn7UP91eyxuP4dKcU04074MOvFDIOudF7FREMoBunTcHys1d0AuOPWuw6GICyTqGnGICgdxvSX336ApV99RffjaxTYzrr6xOXXbqoE5+XuZROes61Nmte3I/fDitgsn8OoKTyCAKSQoG22todV3+cPy5OWrDJ8s8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789140564; c=relaxed/simple; bh=peYt46gEnplFq6VAGkOGT5G4FCVR4PjJCVV/CvQlqiQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=US00UA7dm595Sfjtwzj8RHhWzWfEamP+sHW8eIUu9qEOxI126L2nE0Z9c47FTUnJNMmJyc9kIltu+xHPBq0H4yYYXW/OvxGzX7belBON58Z48yQxy51oG0k27D89y5Kzurvf9etRDkmPx10bHYu9TGlo0aoKcQNJu7YBFLQSDho= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=cknow-tech.com; spf=pass smtp.mailfrom=cknow-tech.com; dkim=pass (2048-bit key) header.d=cknow-tech.com header.i=@cknow-tech.com header.b=X9BUDtwM; arc=none smtp.client-ip=91.218.175.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=cknow-tech.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cknow-tech.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cknow-tech.com header.i=@cknow-tech.com header.b="X9BUDtwM" X-Envelope-To: devicetree@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=peYt46gEnplFq6VAGkOGT5G4FCVR4PjJCVV/CvQlqiQ=; c=simple/simple; d=cknow-tech.com; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1789140556; v=1; x=1789745356; b=X9BUDtwMo5RuqpPHiLXsntdkaPtrn4dznM0BxpF7FvQuWgBV5CnM81YxXX9CdLArTJTvsVdX Ui62sfms6CYNn1+RK8FQDIf5HUazc4Vd3dVWzfzUQD6/OX5zwOME5tJUdNrCmDyVySPgaUoKB/s 2Ee7xwEaNvMwc0V1RGchUYCCCVW5MCLbcBnBiBwROv4ApgqUlEml45ns5Xp7TqGya66GQPz9Dy6 erSANy+E281zijLeztY0LDsM1koHHrxbbP6kXXYCwOMOpcLnaxYYWTtdKirkhhW5TewT3Q8u5FP hrtq4mzYDQFhbc4yp1544A48mQCpFj3HFoxPRrkJq3SNw== X-Envelope-To: devicetree@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 4a6b1134c34ec148; Fri, 11 Sep 2026 15:29:16 +0000 X-Mizu-Trace-ID: 4a6b1134c34ec148 X-Migadu-Flow: FLOW_OUT From: Diederik de Haas To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner Cc: Ricardo Pardini , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Diederik de Haas Subject: [PATCH] arm64: dts: rockchip: Fix i2c6 clock-frequency on NanoPC-T6 Date: Fri, 11 Sep 2026 17:28:33 +0200 Message-ID: <20260911152911.2088363-1-diederik@cknow-tech.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The i2c6 bus needs to run at 200kHz, because at the default frequency of 100kHz it may fail to find the RTC resulting in warnings/errors like rtc-hym8563 6-0051: no valid clock/calendar values available rtc-hym8563 6-0051: hctosys: unable to read the hardware clock But only sometimes. This should not happen when there is a battery backing the RTC, yet it does ... sometimes. Signed-off-by: Diederik de Haas --- arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi index 4d97afbc33bf..ff4f766ce0df 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi @@ -455,6 +455,8 @@ regulator-state-mem { }; &i2c6 { + clock-frequency = <200000>; + status = "okay"; usbc0: usb-typec@22 { -- 2.55.0