From: Herve Codina <herve.codina@bootlin•com>
To: Herve Codina <herve.codina@bootlin•com>,
"David S. Miller" <davem@davemloft•net>,
Eric Dumazet <edumazet@google•com>,
Jakub Kicinski <kuba@kernel•org>, Paolo Abeni <pabeni@redhat•com>,
Andrew Lunn <andrew@lunn•ch>, Rob Herring <robh+dt@kernel•org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro•org>,
Conor Dooley <conor+dt@kernel•org>, Lee Jones <lee@kernel•org>,
Linus Walleij <linus.walleij@linaro•org>,
Qiang Zhao <qiang.zhao@nxp•com>, Li Yang <leoyang.li@nxp•com>,
Liam Girdwood <lgirdwood@gmail•com>,
Mark Brown <broonie@kernel•org>, Jaroslav Kysela <perex@perex•cz>,
Takashi Iwai <tiwai@suse•com>,
Shengjiu Wang <shengjiu.wang@gmail•com>,
Xiubo Li <Xiubo.Lee@gmail•com>,
Fabio Estevam <festevam@gmail•com>,
Nicolin Chen <nicoleotsuka@gmail•com>,
Christophe Leroy <christophe.leroy@csgroup•eu>
Cc: netdev@vger•kernel.org, linuxppc-dev@lists•ozlabs.org,
devicetree@vger•kernel.org, linux-kernel@vger•kernel.org,
linux-gpio@vger•kernel.org, linux-arm-kernel@lists•infradead.org,
alsa-devel@alsa-project•org,
Thomas Petazzoni <thomas.petazzoni@bootlin•com>
Subject: [PATCH 01/26] soc: fsl: cpm1: qmc: Fix rx channel reset
Date: Tue, 25 Jul 2023 11:23:37 +0200 [thread overview]
Message-ID: <20230725092417.43706-2-herve.codina@bootlin.com> (raw)
In-Reply-To: <20230725092417.43706-1-herve.codina@bootlin.com>
The qmc_chan_reset_rx() set the is_rx_stopped flag. This leads to an
inconsistent state in the following sequence.
qmc_chan_stop()
qmc_chan_reset()
Indeed, after the qmc_chan_reset() call, the channel must still be
stopped. Only a qmc_chan_start() call can move the channel from stopped
state to started state.
Fix the issue removing the is_rx_stopped flag setting from
qmc_chan_reset()
Fixes: 3178d58e0b97 ("soc: fsl: cpm1: Add support for QMC")
Signed-off-by: Herve Codina <herve.codina@bootlin•com>
---
drivers/soc/fsl/qe/qmc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index b3c292c9a14e..a45e40776b45 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -685,7 +685,6 @@ static void qmc_chan_reset_rx(struct qmc_chan *chan)
qmc_read16(chan->s_param + QMC_SPE_RBASE));
chan->rx_pending = 0;
- chan->is_rx_stopped = false;
spin_unlock_irqrestore(&chan->rx_lock, flags);
}
--
2.41.0
next prev parent reply other threads:[~2023-07-25 9:25 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-25 9:23 [PATCH 00/26] Add support for QMC HDLC, framer infrastruture and PEF2256 framer Herve Codina
2023-07-25 9:23 ` Herve Codina [this message]
2023-07-25 9:23 ` [PATCH 02/26] soc: fsl: cpm1: qmc: Extend the API to provide Rx status Herve Codina
2023-07-25 9:23 ` [PATCH 03/26] dt-bindings: net: Add support for QMC HDLC Herve Codina
2023-07-25 9:23 ` [PATCH 04/26] net: wan: " Herve Codina
2023-07-25 9:23 ` [PATCH 05/26] MAINTAINERS: Add the Freescale QMC HDLC driver entry Herve Codina
2023-07-25 9:23 ` [PATCH 06/26] soc: fsl: cpm1: qmc: Introduce available timeslots masks Herve Codina
2023-07-25 9:23 ` [PATCH 07/26] soc: fsl: cpm1: qmc: Rename qmc_setup_tsa* to qmc_init_tsa* Herve Codina
2023-07-25 9:23 ` [PATCH 08/26] soc: fsl: cpm1: qmc: Introduce qmc_chan_setup_tsa* Herve Codina
2023-07-25 9:23 ` [PATCH 09/26] soc: fsl: cpm1: qmc: Remove no more needed checks from qmc_check_chans() Herve Codina
2023-07-25 9:23 ` [PATCH 10/26] soc: fsl: cpm1: qmc: Check available timeslots in qmc_check_chans() Herve Codina
2023-07-25 9:23 ` [PATCH 11/26] soc: fsl: cpm1: qmc: Add support for disabling channel TSA entries Herve Codina
2023-07-25 9:23 ` [PATCH 12/26] soc: fsl: cpm1: qmc: Split Tx and Rx TSA entries setup Herve Codina
2023-07-25 9:23 ` [PATCH 13/26] soc: fsl: cpm1: qmc: Introduce is_tsa_64rxtx flag Herve Codina
2023-07-25 9:23 ` [PATCH 14/26] soc: fsl: cpm1: qmc: Handle timeslot entries at channel start() and stop() Herve Codina
2023-07-25 9:23 ` [PATCH 15/26] soc: fsl: cpm1: qmc: Remove timeslots handling from setup_chan() Herve Codina
2023-07-25 9:23 ` [PATCH 16/26] soc: fsl: cpm1: qmc: Introduce functions to change timeslots at runtime Herve Codina
2023-07-25 9:23 ` [PATCH 17/26] wan: qmc_hdlc: Add runtime timeslots changes support Herve Codina
2023-07-25 9:23 ` [PATCH 18/26] net: wan: Add framer framework support Herve Codina
2023-07-25 9:23 ` [PATCH 19/26] dt-bindings: net: Add the Lantiq PEF2256 E1/T1/J1 framer Herve Codina
2023-07-25 9:23 ` [PATCH 20/26] mfd: core: Ensure disabled devices are skiped without aborting Herve Codina
2023-07-25 9:23 ` [PATCH 21/26] net: wan: framer: Add support for the Lantiq PEF2256 framer Herve Codina
2023-07-25 9:23 ` [PATCH 22/26] pinctrl: Add support for the Lantic PEF2256 pinmux Herve Codina
2023-07-25 9:23 ` [PATCH 23/26] MAINTAINERS: Add the Lantiq PEF2256 driver entry Herve Codina
2023-07-25 9:24 ` [PATCH 24/26] ASoC: codecs: Add support for the framer codec Herve Codina
2023-07-25 16:41 ` Randy Dunlap
2023-07-25 9:24 ` [PATCH 25/26] dt-bindings: net: fsl,qmc-hdlc: Add framer support Herve Codina
2023-07-25 9:24 ` [PATCH 26/26] net: wan: fsl_qmc_hdlc: " Herve Codina
2023-07-26 4:14 ` [PATCH 00/26] Add support for QMC HDLC, framer infrastruture and PEF2256 framer Jakub Kicinski
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