From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 86B7618C02E for ; Mon, 12 Oct 2026 06:24:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791786269; cv=none; b=kAqX8BXdR0WZFeOHtTLswLJZzsfTbxRF/39KZiiXnHMwBG5haMqAAVm0LbCCyBPdrKX9mXtWmld8PFUO1jP7WbB0Tj4Wb5cLG0lzvAlY9wLyl4THT1Tdue4NDkmbrFu14HSx+U9bzj+GNYSdACvQOGuIhmuJgi8ailOrKKN7cLk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791786269; c=relaxed/simple; bh=SMeKbHqzDN6Y93uUCRWk7BnQzLkmRWkYn20lhxhb0NU=; h=Message-ID:From:Subject:To:Cc:In-Reply-To:References:Content-Type: Date; b=l//qVpbgUo9/5IEzzIb0w76e4hQFL9V7LjKebnvxowfFia3zDWxUFS5MXd6pdFSJkd+ViP2mnDW1raE6AO7t+6T4jBCKgt0xtSCERb0L9tTJ4zYSft8Nq7zfbxJaPZXq25NF+uC/c/UqUHVmPGbb5MGc/5kKPeWjssKkqtCQ1us= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=n/D1ANOE; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="n/D1ANOE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05A1E1F0089B; Mon, 12 Oct 2026 06:24:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791786268; bh=SMeKbHqzDN6Y93uUCRWk7BnQzLkmRWkYn20lhxhb0NU=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=n/D1ANOEa/VisflhF/iuWbiZAPV1oG6hUlaeN50I3STo4a5iXvH788lpVKGfBUwuV BsBvqMJNiBwfKKZXhzA4/wEYzEH998WJ9aYXzLOJid2jMb0ebt40dsU+DhnobcBZ0T YEPqV5b0UobAeK84C5ZTNYtY7XyDxuRjjQtuqS6VBnY04JAxkmleXrEmopsy+pe0d8 cTswh8lGjaZPGyWg0GgDcUFj5GQxScP4nG6j70JT0PQUSUVADWTl0iV9hMXMV95byl PZuH4dcXxeXOHQbFXJyLQsTgE6N3SEkCP6S4MlkCbFdkRZUfpKZbLulog6VuWBSxMW 2GNZACyxKnXvA== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH] serial: 8250_dw: retain programmed timing for BUSY waits Reply-To: sashiko-reviews@lists.linux.dev To: khaliforce Cc: linux-serial@vger.kernel.org In-Reply-To: <1791785420.8010663.945898876521967.uart-busy-frame-time@gmail.com> References: <1791785420.8010663.945898876521967.uart-busy-frame-time@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 12 Oct 2026 06:24:27 +0000 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > Baud changes update frame_time before the programmed divisor changes. > A switch to a faster baud rate therefore shortens the DesignWare BUSY > wait. > The wait can expire while a frame at the old baud rate remains active. >=20 > Use the programmed frame duration for FIFO and BUSY waits. > Account for UART clock changes. >=20 > Fixes: a7b9ce39fbe4 ("serial: 8250_dw: Ensure BUSY is deasserted") > Signed-off-by: khaliforce Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/1791785420.8010663.= 945898876521967.uart-busy-frame-time@gmail.com?part=3D1