From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5927C433FE for ; Mon, 20 Sep 2021 18:51:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A10D960EE4 for ; Mon, 20 Sep 2021 18:51:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1386036AbhITSxP (ORCPT ); Mon, 20 Sep 2021 14:53:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:38250 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1385894AbhITSwh (ORCPT ); Mon, 20 Sep 2021 14:52:37 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id B4B0361264; Mon, 20 Sep 2021 17:56:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632160613; bh=WosCvV1JmUK5ETxM63LC5LHc9UhJvmkbOb6SQ9HQRCY=; h=From:To:Cc:Subject:Date:From; b=Lp3JnVDw1ie0nEvoc6RjCG3ZSX8FmUH9p/imspF1stYQX8HxyIHinKZctWOAswonx YiM07jJiuAEwguX0rlonIvqyGRHPjDwOndVZZ7GA6aq3+fkEOHHieDzUOYXoUBpNEf T+aujHdp+VYjuxI3pQpw/An5IEAywA9OqGsLow3R/bkqbovuQSNxSrI5FtFZXzTJpx U3h8J9HwRn5dnGsmHq2ptSIbJv4zsPc73BnIvELmPDZae6+E1VQnlj/MI9940LHJ8V QiHAv+gxwpM4r3bNTYUzeTaB3tSOcJwBR+CrSBLYAp5t8Vj6tHyizdMwUGE1HR52JP Bw1bCeX2qSEyQ== Received: by wens.tw (Postfix, from userid 1000) id 73B285FC6F; Tue, 21 Sep 2021 01:56:51 +0800 (CST) From: Chen-Yu Tsai To: Heiko Stuebner Cc: Chen-Yu Tsai , Robin Murphy , linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: rockchip: nanopi4: decrease Bluetooth UART baud rate Date: Tue, 21 Sep 2021 01:56:46 +0800 Message-Id: <20210920175647.13008-1-wens@kernel.org> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chen-Yu Tsai The RK3399 does not seem to be able to properly generate the required 64 MHz clock for the UART to operate at 4MBd. Drop the baud rate down to 3MBd, which can be used as the clock controller is able to produce a 48 MHz clock. Fixes: 3e2f0bb72be3 ("arm64: dts: rockchip: Add nanopi4 bluetooth") Signed-off-by: Chen-Yu Tsai --- arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi index 8c0ff6c96e03..45ff053b119d 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi @@ -699,7 +699,7 @@ bluetooth { device-wakeup-gpios = <&gpio2 RK_PD2 GPIO_ACTIVE_HIGH>; host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>; shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>; - max-speed = <4000000>; + max-speed = <3000000>; pinctrl-names = "default"; pinctrl-0 = <&bt_reg_on_h &bt_host_wake_l &bt_wake_l>; vbat-supply = <&vcc3v3_sys>; -- 2.30.2