From patchwork Wed Nov 15 14:39:36 2023
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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>,
 Randy Dunlap <rdunlap@infradead.org>
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, Simon Horman <horms@kernel.org>,
 Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
 Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: [PATCH v9 00/27] Add support for QMC HDLC,
 framer infrastructure and PEF2256 framer
Date: Wed, 15 Nov 2023 15:39:36 +0100
Message-ID: <20231115144007.478111-1-herve.codina@bootlin.com>
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Hi,

I have a system where I need to handle an HDLC interface and some audio
data.

The HDLC data are transferred using a TDM bus on which a PEF2256
(E1/T1 framer) is present. The PEF2256 transfers data from/to the TDM
bus to/from the E1 line. This PEF2256 is connected to a PowerQUICC SoC
for the control path and the TDM is connected to the SoC (QMC component)
for the data path.