From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 29950183CCD; Tue, 30 Jul 2024 16:07:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722355670; cv=none; b=Bt33kMl+yyfmdNzTiakUkK3nDzeSeNsWUH4Cls50CwHY9kYOlDebaLeLXEpg8jO+kHeJ91jgm9a6qcYn4tKh9YT2jirUDVUcMvBabMnfHH8uCrJli7RzW5UWsTFfVP5eVngH4lGnwCe58j7nlJ+pALtRU9DSSVTueIPD17qCcOk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722355670; c=relaxed/simple; bh=hW+XVcRNR6gpVVUbK1a0mQioRwtSND7oe87caI8MAIo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uYzMZb8i03q8DFnF7ZQZ+mgYJ+bKq91Tf/jwALBYGuYFCj3GR0TRaqpsMNacKQiIFqUiAHp5l7Blm++s6flbs7tt3JU/3pM7dlB9bUjhvCKNcdZqs7WIhaRJ858ucYe8PB6UUySCgvI63T299sCUiqqHQscsiJ23pVA8V1Z+CJg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cE4zgV02; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="cE4zgV02" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94234C32782; Tue, 30 Jul 2024 16:07:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1722355670; bh=hW+XVcRNR6gpVVUbK1a0mQioRwtSND7oe87caI8MAIo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cE4zgV02zla7qW/dst/lyRyaVkhfzh6WOyDDbS8We9llHfaafo06p4FHQApTmPEaO 1illgOrq8G1ygDV0rxGiSBhcoLZdUdtxC1MRffhiiMHDK6YTRwyngiowdNByVyLa2v 0eVsIqYFTwB7KX8ZC2YHbaxBuRfdA49Bf4kWCUxc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Josua Mayer , Vignesh Raghavendra , Sasha Levin Subject: [PATCH 6.10 078/809] arm64: dts: ti: k3-am642-hummingboard-t: correct rs485 rts polarity Date: Tue, 30 Jul 2024 17:39:14 +0200 Message-ID: <20240730151727.721129000@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240730151724.637682316@linuxfoundation.org> References: <20240730151724.637682316@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Josua Mayer [ Upstream commit 9dcc0e1065f3c40d0b2ad79a858bb4ebaba33167 ] The RS485 transceiver RE (Receiver enable) and DE (Driver enable) are shorted and connected to both RTS/CTS of the SoC UART. RE is active-low, DE is active-high. Remove the "rs485-rts-active-low" flag to match RTS polarity with DE, and fix communication in both transmit and receive directions. Fixes: d60483faf914 ("arm64: dts: add description for solidrun am642 som and evaluation board") Signed-off-by: Josua Mayer Link: https://lore.kernel.org/r/20240504-ti-rs485-rts-v1-1-e88ef1c96f34@solid-run.com Signed-off-by: Vignesh Raghavendra Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts index 234d76e4e9445..5b5e9eeec5ac4 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts @@ -282,7 +282,6 @@ &main_uart3 { pinctrl-names = "default"; pinctrl-0 = <&main_uart3_default_pins>; uart-has-rtscts; - rs485-rts-active-low; linux,rs485-enabled-at-boot-time; status = "okay"; }; -- 2.43.0