From: Johan Hovold <johan+linaro@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Douglas Anderson <dianders@chromium.org>,
Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com>,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-serial@vger.kernel.org,
Johan Hovold <johan+linaro@kernel.org>
Subject: [PATCH v3 0/9] serial: qcom-geni: fix receiver enable
Date: Wed, 9 Oct 2024 16:51:01 +0200 [thread overview]
Message-ID: <20241009145110.16847-1-johan+linaro@kernel.org> (raw)
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. This can manifest
itself as a serial getty not accepting input.
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.
Johan
Changes in v3
- fix polled console initialisation
- revert broken hibernation support
- rename suspend PM ops
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 (9):
serial: qcom-geni: fix polled console initialisation
serial: qcom-geni: revert broken hibernation support
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
serial: qcom-geni: rename suspend functions
drivers/tty/serial/qcom_geni_serial.c | 103 ++++++++++++--------------
include/linux/soc/qcom/geni-se.h | 2 +-
2 files changed, 49 insertions(+), 56 deletions(-)
--
2.45.2
next reply other threads:[~2024-10-09 14:51 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-09 14:51 Johan Hovold [this message]
2024-10-09 14:51 ` [PATCH v3 1/9] serial: qcom-geni: fix polled console initialisation Johan Hovold
2024-10-10 22:36 ` Doug Anderson
2024-10-09 14:51 ` [PATCH v3 2/9] serial: qcom-geni: revert broken hibernation support Johan Hovold
2024-10-09 14:51 ` [PATCH v3 3/9] serial: qcom-geni: fix shutdown race Johan Hovold
2024-10-10 22:36 ` Doug Anderson
2024-10-11 6:54 ` Johan Hovold
2024-10-09 14:51 ` [PATCH v3 4/9] serial: qcom-geni: fix dma rx cancellation Johan Hovold
2024-10-09 14:51 ` [PATCH v3 5/9] serial: qcom-geni: fix receiver enable Johan Hovold
2024-10-10 22:36 ` Doug Anderson
2024-10-09 14:51 ` [PATCH v3 6/9] serial: qcom-geni: fix rx cancel dma status bit Johan Hovold
2024-10-09 14:51 ` [PATCH v3 7/9] serial: qcom-geni: drop flip buffer WARN() Johan Hovold
2024-10-09 14:51 ` [PATCH v3 8/9] serial: qcom-geni: drop unused receive parameter Johan Hovold
2024-10-09 14:51 ` [PATCH v3 9/9] serial: qcom-geni: rename suspend functions Johan Hovold
2024-10-10 22:36 ` Doug Anderson
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