From patchwork Tue Oct 1 12:50:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 13817959 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 3C3AB1C244E; Tue, 1 Oct 2024 12:51:11 +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=1727787071; cv=none; b=UFwtgOiLhDsDhobkIkONpT1b6D+GlkSp+5WVRRARudBX+nJyvqiL82o/bd/A0s9XitqmhIqUOkDnkTwYEwww204CIVPtBwWMqrkOGk+dF8qpvOr9b1U/qVyRSDa6ywo3K9yARqJAXqI2MjXzL6473xB72hk2fieYapzuMFnRMKc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727787071; c=relaxed/simple; bh=WLDIhMn1vbPa9/NIV8lQ9gqz/PY4jsXJHNNZ8fGZEyI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=AzfhVMGlZ24qA7Aon+Q2goOanwJjRXlBd1/s+tWqsK2Lq1oUxAhGj7r4d0q/ncuzm1OQF/lYxvKYPmnsrvsEAPwybLFElbTZXfuQu8rZZaU+BMOxFWzVTBoKAUY1rQ+YATKV3Gf0Lxq3YPf4f62NpmPJChrPie8XuNx9EZCDKx4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WSZi5v7i; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WSZi5v7i" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD8CFC4CEC6; Tue, 1 Oct 2024 12:51:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727787070; bh=WLDIhMn1vbPa9/NIV8lQ9gqz/PY4jsXJHNNZ8fGZEyI=; h=From:To:Cc:Subject:Date:From; b=WSZi5v7i7+Mt5JgY+fV5uOUxVUc+MbkFm724I2cJmj90qAk2lAH6DNemN2VNpc6v6 tYI8d0lKX5pFihjA12egY4LWqQ1jTB9dbJTSK5ZJryH1ZuYiR/aT2dcdoXrFBzUZpC E014RO1UsMptpHVjeAyk4jyjS55SRDM0JE1loBFzRINto8V3vPLeFAzdObuhUDFhcT aiYhNi98OdgorXgIApThVPgVvvEJ6g9CwwgENotsEyUUeiuUjsVACCLuk7iELNQghw rhKGRgbPhQXH+zydtzMBM/eLZwf9oqFq0XBC4exi9bDNMF4XYAL7644TunkAwBbo+b B/9CMSIaGT7MQ== Received: from johan by xi.lan with local (Exim 4.97.1) (envelope-from ) id 1svcLO-000000002mC-0YcU; Tue, 01 Oct 2024 14:51:10 +0200 From: Johan Hovold To: Greg Kroah-Hartman Cc: Jiri Slaby , Bjorn Andersson , Konrad Dybcio , Douglas Anderson , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Johan Hovold Subject: [PATCH v2 0/7] serial: qcom-geni: fix receiver enable Date: Tue, 1 Oct 2024 14:50:26 +0200 Message-ID: <20241001125033.10625-1-johan+linaro@kernel.org> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This series is a follow up to the console fixes in 6.12-rc1 that can interact badly with some pre-existing bugs. Specifically, the receiver could end up being disabled when set_termios() races with the console code during boot. Fixing the missing locking in set_termios() exposes another long-standing bug in the DMA implementation (e.g. used for Bluetooth), which is also fixed in v2. Johan Changes in v2 - keep the call to stop rx in shutdown() which is called also on hangups - fix rx dma cancellation - fix rx cancel dma status bit - drop flip buffer WARN() - drop unused receive parameter Johan Hovold (7): serial: qcom-geni: fix premature receiver enable serial: qcom-geni: fix shutdown race serial: qcom-geni: fix dma rx cancellation serial: qcom-geni: fix receiver enable serial: qcom-geni: fix rx cancel dma status bit serial: qcom-geni: drop flip buffer WARN() serial: qcom-geni: drop unused receive parameter drivers/tty/serial/qcom_geni_serial.c | 40 +++++++++++++++++---------- include/linux/soc/qcom/geni-se.h | 2 +- 2 files changed, 27 insertions(+), 15 deletions(-)