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[62.108.10.64]) by smtp.gmail.com with ESMTPSA id t15-20020a1709066bcf00b009a13fdc139fsm1102535ejs.183.2023.10.20.02.33.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 02:33:22 -0700 (PDT) From: Luca Weiss Date: Fri, 20 Oct 2023 11:33:18 +0200 Subject: [PATCH v2 1/3] dt-bindings: usb: fsa4480: Add data-lanes property to endpoint Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231020-fsa4480-swap-v2-1-9a7f9bb59873@fairphone.com> References: <20231020-fsa4480-swap-v2-0-9a7f9bb59873@fairphone.com> In-Reply-To: <20231020-fsa4480-swap-v2-0-9a7f9bb59873@fairphone.com> To: Heikki Krogerus , Greg Kroah-Hartman , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Luca Weiss X-Mailer: b4 0.12.3 Allow specifying data-lanes to reverse the muxing orientation between AUX+/- and SBU1/2 where necessary by the hardware design. In the mux there's a switch that needs to be controlled from the OS, and it either connects AUX+ -> SBU1 and AUX- -> SBU2, or the reverse: AUX+ -> SBU2 and AUX- -> SBU1, depending on the orientation of how the USB-C connector is plugged in. With this data-lanes property we can now specify that AUX+ and AUX- connections are swapped between the SoC and the mux, therefore the OS needs to consider this and reverse the direction of this switch in the mux. _______ _______ | | | |-- HP --| | |-- MIC --| |or SoC | | MUX |-- SBU1 ---> To the USB-C Codec |-- AUX+ --| |-- SBU2 ---> connected |-- AUX- --| | ______| |_____| (thanks to Neil Armstrong for this ASCII art) Signed-off-by: Luca Weiss Reviewed-by: Rob Herring --- .../devicetree/bindings/usb/fcs,fsa4480.yaml | 29 +++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml b/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml index f6e7a5c1ff0b..86f6d633c2fb 100644 --- a/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml +++ b/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml @@ -32,10 +32,37 @@ properties: type: boolean port: - $ref: /schemas/graph.yaml#/properties/port + $ref: /schemas/graph.yaml#/$defs/port-base description: A port node to link the FSA4480 to a TypeC controller for the purpose of handling altmode muxing and orientation switching. + unevaluatedProperties: false + + properties: + endpoint: + $ref: /schemas/graph.yaml#/$defs/endpoint-base + unevaluatedProperties: false + + properties: + data-lanes: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + Specifies how the AUX+/- lines are connected to SBU1/2. + oneOf: + - items: + - const: 0 + - const: 1 + description: | + Default AUX/SBU layout + - AUX+ connected to SBU2 + - AUX- connected to SBU1 + - items: + - const: 1 + - const: 0 + description: | + Swapped AUX/SBU layout + - AUX+ connected to SBU1 + - AUX- connected to SBU2 required: - compatible From patchwork Fri Oct 20 09:33:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 13430416 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 1036112E70 for ; Fri, 20 Oct 2023 09:33:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fairphone.com header.i=@fairphone.com header.b="FYeQJxTo" Received: from mail-ej1-x62e.google.com (mail-ej1-x62e.google.com [IPv6:2a00:1450:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9481710D3 for ; Fri, 20 Oct 2023 02:33:27 -0700 (PDT) Received: by mail-ej1-x62e.google.com with SMTP id a640c23a62f3a-9c75ceea588so91203666b.3 for ; Fri, 20 Oct 2023 02:33:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fairphone.com; s=fair; t=1697794403; x=1698399203; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=8HAqgphO8/nmhxveYYWq+PwS2fkw9vCkjtGCsYcP8DE=; b=FYeQJxToEaN56qaSjTi3xRkXXFxyQCFqoO9YHmFtdDCoeL1iwFeClkv8LCZPlFhEzQ Laj94aMaSp0ObpaFepN5IsHCkBJAlI0nxiUe62fgR/ahMYbMyT1ThaSnjKFtFPJrzjBE OaInWd+rCFYFqYGkoHNJ7QWmsR1x1Wgp1rVHZJa0vo9KemFrDJcx4jx1bAnIbd3dMAXH ekqHIp/GF/zWBeyvolfi2OK70RWRAtnSs/OWgvdAjLp54PlPuktGNmLoAAWNcVIQuHBO HlRwv3kfTSY7L/C4/iBbKoWKDAqBWySmUTSdK5KVyRTtZnNtG3bka/2Z+CRIm57pQ0vG HCIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697794403; x=1698399203; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=8HAqgphO8/nmhxveYYWq+PwS2fkw9vCkjtGCsYcP8DE=; b=AXJkZWnBrJToQhNeqHUcWm6IBI2gceIDhCHsYqBw1MZ9lfhPsqpU0XoIzrZkFdLLG5 yl690SDmxY+TM064szZHJJiMqOpiDHXSdtatNJLuKg8nUKYTRZohD+fkH472/igh4oU6 uYrDH8QJm50p2mI21MOUTMfvUYV43JYeLhv2kUVNFePVO3QBDPTcTb2WEObdLmv0Rr+k OzL01Hyak3UFxcNxYcHsvtWOuFoS0xYi/n+D5ldM9c2wNMd2mCLj55GlY1p8fGZDCa9s 8XBsYmwZfsHRYjjbOIBFqGYv2I5SR3CAByDRgAzKnjp3ny9h0a1hU8QrQNYOpiq98pyC LLkA== X-Gm-Message-State: AOJu0YzYQPMhlAaDJ3dnRSiZpZFajiiLq/S6znLGcxSlbxlJLjBV9Hor 5lOFGBT+RO9AJXpoiDiNdGTl4A== X-Google-Smtp-Source: AGHT+IFP1JXUdkDGNVp03jbl+ZSC03News4HiarnwyTD2JABp9j7F8z4tTvDzgffGBOsPBTwQNK6FA== X-Received: by 2002:a17:907:9724:b0:9bd:f3b0:c087 with SMTP id jg36-20020a170907972400b009bdf3b0c087mr922647ejc.2.1697794403304; Fri, 20 Oct 2023 02:33:23 -0700 (PDT) Received: from otso.luca.vpn.lucaweiss.eu (k10064.upc-k.chello.nl. [62.108.10.64]) by smtp.gmail.com with ESMTPSA id t15-20020a1709066bcf00b009a13fdc139fsm1102535ejs.183.2023.10.20.02.33.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 02:33:22 -0700 (PDT) From: Luca Weiss Date: Fri, 20 Oct 2023 11:33:19 +0200 Subject: [PATCH v2 2/3] usb: typec: fsa4480: Add support to swap SBU orientation Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231020-fsa4480-swap-v2-2-9a7f9bb59873@fairphone.com> References: <20231020-fsa4480-swap-v2-0-9a7f9bb59873@fairphone.com> In-Reply-To: <20231020-fsa4480-swap-v2-0-9a7f9bb59873@fairphone.com> To: Heikki Krogerus , Greg Kroah-Hartman , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Luca Weiss X-Mailer: b4 0.12.3 On some hardware designs the AUX+/- lanes are connected reversed to SBU1/2 compared to the expected design by FSA4480. Made more complicated, the otherwise compatible Orient-Chip OCP96011 expects the lanes to be connected reversed compared to FSA4480. * FSA4480 block diagram shows AUX+ connected to SBU2 and AUX- to SBU1. * OCP96011 block diagram shows AUX+ connected to SBU1 and AUX- to SBU2. So if OCP96011 is used as drop-in for FSA4480 then the orientation handling in the driver needs to be reversed to match the expectation of the OCP96011 hardware. Support parsing the data-lanes parameter in the endpoint node to swap this in the driver. The parse_data_lanes_mapping function is mostly taken from nb7vpq904m.c. Reviewed-by: Neil Armstrong Signed-off-by: Luca Weiss Reviewed-by: Heikki Krogerus --- drivers/usb/typec/mux/fsa4480.c | 71 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/drivers/usb/typec/mux/fsa4480.c b/drivers/usb/typec/mux/fsa4480.c index e0ee1f621abb..cb7cdf90cb0a 100644 --- a/drivers/usb/typec/mux/fsa4480.c +++ b/drivers/usb/typec/mux/fsa4480.c @@ -60,6 +60,7 @@ struct fsa4480 { unsigned int svid; u8 cur_enable; + bool swap_sbu_lanes; }; static const struct regmap_config fsa4480_regmap_config = { @@ -76,6 +77,9 @@ static int fsa4480_set(struct fsa4480 *fsa) u8 enable = FSA4480_ENABLE_DEVICE; u8 sel = 0; + if (fsa->swap_sbu_lanes) + reverse = !reverse; + /* USB Mode */ if (fsa->mode < TYPEC_STATE_MODAL || (!fsa->svid && (fsa->mode == TYPEC_MODE_USB2 || @@ -179,12 +183,75 @@ static int fsa4480_mux_set(struct typec_mux_dev *mux, struct typec_mux_state *st return ret; } +enum { + NORMAL_LANE_MAPPING, + INVERT_LANE_MAPPING, +}; + +#define DATA_LANES_COUNT 2 + +static const int supported_data_lane_mapping[][DATA_LANES_COUNT] = { + [NORMAL_LANE_MAPPING] = { 0, 1 }, + [INVERT_LANE_MAPPING] = { 1, 0 }, +}; + +static int fsa4480_parse_data_lanes_mapping(struct fsa4480 *fsa) +{ + struct fwnode_handle *ep; + u32 data_lanes[DATA_LANES_COUNT]; + int ret, i, j; + + ep = fwnode_graph_get_next_endpoint(dev_fwnode(&fsa->client->dev), NULL); + if (!ep) + return 0; + + ret = fwnode_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT); + if (ret == -EINVAL) + /* Property isn't here, consider default mapping */ + goto out_done; + if (ret) { + dev_err(&fsa->client->dev, "invalid data-lanes property: %d\n", ret); + goto out_error; + } + + for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) { + for (j = 0; j < DATA_LANES_COUNT; j++) { + if (data_lanes[j] != supported_data_lane_mapping[i][j]) + break; + } + + if (j == DATA_LANES_COUNT) + break; + } + + switch (i) { + case NORMAL_LANE_MAPPING: + break; + case INVERT_LANE_MAPPING: + fsa->swap_sbu_lanes = true; + break; + default: + dev_err(&fsa->client->dev, "invalid data-lanes mapping\n"); + ret = -EINVAL; + goto out_error; + } + +out_done: + ret = 0; + +out_error: + fwnode_handle_put(ep); + + return ret; +} + static int fsa4480_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct typec_switch_desc sw_desc = { }; struct typec_mux_desc mux_desc = { }; struct fsa4480 *fsa; + int ret; fsa = devm_kzalloc(dev, sizeof(*fsa), GFP_KERNEL); if (!fsa) @@ -193,6 +260,10 @@ static int fsa4480_probe(struct i2c_client *client) fsa->client = client; mutex_init(&fsa->lock); + ret = fsa4480_parse_data_lanes_mapping(fsa); + if (ret) + return ret; + fsa->regmap = devm_regmap_init_i2c(client, &fsa4480_regmap_config); if (IS_ERR(fsa->regmap)) return dev_err_probe(dev, PTR_ERR(fsa->regmap), "failed to initialize regmap\n"); From patchwork Fri Oct 20 09:33:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 13430417 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 B1F2D13AC5 for ; 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[62.108.10.64]) by smtp.gmail.com with ESMTPSA id t15-20020a1709066bcf00b009a13fdc139fsm1102535ejs.183.2023.10.20.02.33.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 02:33:23 -0700 (PDT) From: Luca Weiss Date: Fri, 20 Oct 2023 11:33:20 +0200 Subject: [PATCH v2 3/3] dt-bindings: usb: fsa4480: Add compatible for OCP96011 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231020-fsa4480-swap-v2-3-9a7f9bb59873@fairphone.com> References: <20231020-fsa4480-swap-v2-0-9a7f9bb59873@fairphone.com> In-Reply-To: <20231020-fsa4480-swap-v2-0-9a7f9bb59873@fairphone.com> To: Heikki Krogerus , Greg Kroah-Hartman , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Luca Weiss X-Mailer: b4 0.12.3 The Orient-Chip OCP96011 is generally compatible with the FSA4480, add a compatible for it with the fallback on fsa4480. However the AUX/SBU connections are expected to be swapped compared to FSA4480, so document this in the data-lanes description. Signed-off-by: Luca Weiss Reviewed-by: Rob Herring --- Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml b/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml index 86f6d633c2fb..f9410eb76a62 100644 --- a/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml +++ b/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml @@ -11,8 +11,12 @@ maintainers: properties: compatible: - enum: - - fcs,fsa4480 + oneOf: + - const: fcs,fsa4480 + - items: + - enum: + - ocs,ocp96011 + - const: fcs,fsa4480 reg: maxItems: 1 @@ -53,16 +57,22 @@ properties: - const: 0 - const: 1 description: | - Default AUX/SBU layout + Default AUX/SBU layout (FSA4480) - AUX+ connected to SBU2 - AUX- connected to SBU1 + Default AUX/SBU layout (OCP96011) + - AUX+ connected to SBU1 + - AUX- connected to SBU2 - items: - const: 1 - const: 0 description: | - Swapped AUX/SBU layout + Swapped AUX/SBU layout (FSA4480) - AUX+ connected to SBU1 - AUX- connected to SBU2 + Swapped AUX/SBU layout (OCP96011) + - AUX+ connected to SBU2 + - AUX- connected to SBU1 required: - compatible