From patchwork Tue Sep 12 10:14:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 13381318 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 BE56018056 for ; Tue, 12 Sep 2023 10:14:50 +0000 (UTC) Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [217.70.183.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E7102693; Tue, 12 Sep 2023 03:14:49 -0700 (PDT) Received: by mail.gandi.net (Postfix) with ESMTPA id 9433DFF804; Tue, 12 Sep 2023 10:14:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1694513688; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6nFUX1W5k5d4akoVdxKyBMsZIVWrV3S/7KR0jpOTDWM=; b=fPhmaJyvEXbicKcjwNKalN6motEnOftcl2FSNgd3j/+qINcAcQwE38zfxjzsfSsb4lf1C2 PxghV7TTKFZOVM0bJMMFeKDUUXQYXGI1XjxeZKkrse/T8bBCZqHqexp5Az0nChBcT1dlMP wKHajDMRiAV6wjaY0E/rRX/TBvFbrUiNJV0uGxVRY748/sGnZ3wyskBQgw2cfPykQznMcA JzEyGkw1QJckGEqH7YfJozDhReBGPN+7yUOMNFcNmqxIMqFtdbHQI1XLOPlOmP3lvpuBBD nJbpDbCC9ofh9j2DWekb0Vjfbv3lD8l0P/45kHCYien7blJvMI/EGuJvPP8fhQ== From: Herve Codina To: Herve Codina , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lee Jones , Linus Walleij , Qiang Zhao , Li Yang , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Shengjiu Wang , Xiubo Li , Fabio Estevam , Nicolin Chen , Christophe Leroy , Randy Dunlap 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 , Christophe JAILLET , Thomas Petazzoni Subject: [PATCH v5 25/31] dt-bindings: net: Add the Lantiq PEF2256 E1/T1/J1 framer Date: Tue, 12 Sep 2023 12:14:44 +0200 Message-ID: <20230912101444.225809-1-herve.codina@bootlin.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230912081527.208499-1-herve.codina@bootlin.com> References: <20230912081527.208499-1-herve.codina@bootlin.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: herve.codina@bootlin.com X-Patchwork-Delegate: kuba@kernel.org The Lantiq PEF2256 is a framer and line interface component designed to fulfill all required interfacing between an analog E1/T1/J1 line and the digital PCM system highway/H.100 bus. Signed-off-by: Herve Codina Signed-off-by: Christophe Leroy --- .../bindings/net/lantiq,pef2256.yaml | 214 ++++++++++++++++++ 1 file changed, 214 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/lantiq,pef2256.yaml diff --git a/Documentation/devicetree/bindings/net/lantiq,pef2256.yaml b/Documentation/devicetree/bindings/net/lantiq,pef2256.yaml new file mode 100644 index 000000000000..c4f21678bf6a --- /dev/null +++ b/Documentation/devicetree/bindings/net/lantiq,pef2256.yaml @@ -0,0 +1,214 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/lantiq,pef2256.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lantiq PEF2256 + +maintainers: + - Herve Codina + +description: + The Lantiq PEF2256, also known as Infineon PEF2256 or FALC56, is a framer and + line interface component designed to fulfill all required interfacing between + an analog E1/T1/J1 line and the digital PCM system highway/H.100 bus. + +properties: + compatible: + items: + - const: lantiq,pef2256 + + reg: + maxItems: 1 + + clocks: + items: + - description: Master clock + - description: System Clock Receive + - description: System Clock Transmit + + clock-names: + items: + - const: mclk + - const: sclkr + - const: sclkx + + interrupts: + maxItems: 1 + + reset-gpios: + description: + GPIO used to reset the device. + maxItems: 1 + + pinctrl: + $ref: /schemas/pinctrl/pinctrl.yaml# + additionalProperties: false + + patternProperties: + '-pins$': + type: object + $ref: /schemas/pinctrl/pinmux-node.yaml# + additionalProperties: false + + properties: + pins: + enum: [ RPA, RPB, RPC, RPD, XPA, XPB, XPC, XPD ] + + function: + enum: [ SYPR, RFM, RFMB, RSIGM, RSIG, DLR, FREEZE, RFSP, LOS, + SYPX, XFMS, XSIG, TCLK, XMFB, XSIGM, DLX, XCLK, XLT, + GPI, GPOH, GPOL ] + + required: + - pins + - function + + lantiq,data-rate-bps: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [2048000, 4096000, 8192000, 16384000] + default: 2048000 + description: + Data rate (bit per seconds) on the system highway. + + lantiq,clock-falling-edge: + $ref: /schemas/types.yaml#/definitions/flag + description: + Data is sent on falling edge of the clock (and received on the rising + edge). If 'clock-falling-edge' is not present, data is sent on the + rising edge (and received on the falling edge). + + lantiq,channel-phase: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3, 4, 5, 6, 7] + default: 0 + description: | + The pef2256 delivers a full frame (32 8bit time-slots in E1 and 24 8bit + time-slots 8 8bit signaling in E1/J1) every 125us. This lead to a data + rate of 2048000 bit/s. When lantiq,data-rate-bps is more than 2048000 + bit/s, the data (all 32 8bit) present in the frame are interleave with + unused time-slots. The lantiq,channel-phase property allows to set the + correct alignment of the interleave mechanism. + For instance, suppose lantiq,data-rate-bps = 8192000 (ie 4*2048000), and + lantiq,channel-phase = 2, the interleave schema with unused time-slots + (nu) and used time-slots (XX) for TSi is + nu nu XX nu nu nu XX nu nu nu XX nu + <-- TSi --> <- TSi+1 -> <- TSi+2 -> + With lantiq,data-rate-bps = 8192000, and lantiq,channel-phase = 1, the + interleave schema is + nu XX nu nu nu XX nu nu nu XX nu nu + <-- TSi --> <- TSi+1 -> <- TSi+2 -> + With lantiq,data-rate-bps = 4096000 (ie 2*2048000), and + lantiq,channel-phase = 1, the interleave schema is + nu XX nu XX nu XX + <-- TSi --> <- TSi+1 -> <- TSi+2 -> + +patternProperties: + '^codec(-([0-9]|[1-2][0-9]|3[0-1]))?$': + type: object + $ref: /schemas/sound/dai-common.yaml + unevaluatedProperties: false + description: + Codec provided by the pef2256. This codec allows to use some of the PCM + system highway time-slots as audio channels to transport audio data over + the E1/T1/J1 lines. + The time-slots used by the codec must be set and so, the properties + 'dai-tdm-slot-num', 'dai-tdm-slot-width', 'dai-tdm-slot-tx-mask' and + 'dai-tdm-slot-rx-mask' must be present in the sound card node for + sub-nodes that involve the codec. The codec uses 8bit time-slots. + 'dai-tdm-tdm-slot-with' must be set to 8. + The tx and rx masks define the pef2256 time-slots assigned to the codec. + + properties: + compatible: + const: lantiq,pef2256-codec + + '#sound-dai-cells': + const: 0 + + required: + - compatible + - '#sound-dai-cells' + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + +additionalProperties: false + +examples: + - | + #include + #include + + pef2256: framer@2000000 { + compatible = "lantiq,pef2256"; + reg = <0x2000000 0x100>; + interrupts = <8 IRQ_TYPE_LEVEL_LOW>; + interrupt-parent = <&intc>; + clocks = <&clk_mclk>, <&clk_sclkr>, <&clk_sclkx>; + clock-names = "mclk", "sclkr", "sclkx"; + reset-gpios = <&gpio 11 GPIO_ACTIVE_LOW>; + lantiq,data-rate-bps = <4096000>; + + pinctrl { + pef2256_rpa_sypr: rpa-pins { + pins = "RPA"; + function = "SYPR"; + }; + pef2256_xpa_sypx: xpa-pins { + pins = "XPA"; + function = "SYPX"; + }; + }; + + pef2256_codec0: codec-0 { + compatible = "lantiq,pef2256-codec"; + #sound-dai-cells = <0>; + sound-name-prefix = "PEF2256_0"; + }; + + pef2256_codec1: codec-1 { + compatible = "lantiq,pef2256-codec"; + #sound-dai-cells = <0>; + sound-name-prefix = "PEF2256_1"; + }; + }; + + sound { + compatible = "simple-audio-card"; + #address-cells = <1>; + #size-cells = <0>; + simple-audio-card,dai-link@0 { /* CPU DAI1 - pef2256 codec 1 */ + reg = <0>; + cpu { + sound-dai = <&cpu_dai1>; + }; + codec { + sound-dai = <&pef2256_codec0>; + dai-tdm-slot-num = <4>; + dai-tdm-slot-width = <8>; + /* TS 1, 2, 3, 4 */ + dai-tdm-slot-tx-mask = <0 1 1 1 1>; + dai-tdm-slot-rx-mask = <0 1 1 1 1>; + }; + }; + simple-audio-card,dai-link@1 { /* CPU DAI2 - pef2256 codec 2 */ + reg = <1>; + cpu { + sound-dai = <&cpu_dai2>; + }; + codec { + sound-dai = <&pef2256_codec1>; + dai-tdm-slot-num = <4>; + dai-tdm-slot-width = <8>; + /* TS 5, 6, 7, 8 */ + dai-tdm-slot-tx-mask = <0 0 0 0 0 1 1 1 1>; + dai-tdm-slot-rx-mask = <0 0 0 0 0 1 1 1 1>; + }; + }; + };