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[144.178.202.138]) by smtp.gmail.com with ESMTPSA id v18-20020aa7d652000000b00533dad8a9c5sm11360772edr.38.2023.10.13.04.38.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Oct 2023 04:38:08 -0700 (PDT) From: Luca Weiss Date: Fri, 13 Oct 2023 13:38:05 +0200 Subject: [PATCH 1/3] dt-bindings: usb: fsa4480: Add data-lanes property to endpoint MIME-Version: 1.0 Message-Id: <20231013-fsa4480-swap-v1-1-b877f62046cc@fairphone.com> References: <20231013-fsa4480-swap-v1-0-b877f62046cc@fairphone.com> In-Reply-To: <20231013-fsa4480-swap-v1-0-b877f62046cc@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 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Allow specifying data-lanes to reverse the SBU muxing orientation where necessary by the hardware design. Signed-off-by: Luca Weiss --- .../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 13 11:38:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 733934 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0CDDCDB47E for ; Fri, 13 Oct 2023 11:38:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231514AbjJMLi2 (ORCPT ); Fri, 13 Oct 2023 07:38:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231390AbjJMLiQ (ORCPT ); Fri, 13 Oct 2023 07:38:16 -0400 Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 96DE7BF for ; Fri, 13 Oct 2023 04:38:11 -0700 (PDT) Received: by mail-ed1-x52c.google.com with SMTP id 4fb4d7f45d1cf-523100882f2so3437776a12.2 for ; Fri, 13 Oct 2023 04:38:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fairphone.com; s=fair; t=1697197090; x=1697801890; 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=1uiPM/GMm7F/lzEfR4zDqI+gGiL3ifxgoG2XzxhVsgY=; b=3GOmrLPkVtN9xW4/OIkqTs4PA107zkrjPsmVH8Wyx72GKfDMZBiumewP+3FcdOIjZZ vFg0DhT/CqAiGJHOXZfGLCAUKp4KoNwfiLxQtC/v1KpxETKGxuqlnDeWxRzH73jnX6dX g9iglOL0s4Um4p5X/YCSAIhrm3oFrk1aADo5Tvoe/YmBA5b0Urn5hFOieCOJFXxUPX6X PlV6M98oDG7gb37uopDcevR9PA9f5LonjSLuDsPVG3+dmq/GFo2TWzkMVsZywhSQo5EI DoBr/k4O/Tc3lNfGLEKbLS0H3qXckcvUI6I3IlmYKrB075Am153JbW+r+qACR5CS3yMo o4og== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697197090; x=1697801890; 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=1uiPM/GMm7F/lzEfR4zDqI+gGiL3ifxgoG2XzxhVsgY=; b=iKDtVtt8RVJxgOFcc00qY3QF2KPynNHSe9E1x2APZcKKrYAeCh8KY6el3JyBCZ3+Vc /aSP4khSeS+oNgwnhrlXK4HfWRkix2X5dPEGdk0Qoq9ej7KsAVRYAyMci/v8Hbk7FAnO paA/caqiN/nzcyx+BBK/6c5uFh2a7x+CoQIdIXHxLvbhGxGigTHXWVKl9Bk4s6NvFqEd gWJTiFXXkTB3KM1OWNoPCVRmyRBjEyHtyvoRa6am7tz/+ffbhbV6KmHt7LeiN5uollgR tahFs8sE27uEX09+STTqD3zSPgM2HPhGARxjEPBXgCpXnBvHe5hFMD6PpRA6E1E7+rws uzXQ== X-Gm-Message-State: AOJu0Ywt8cu1vU/ep5Tal5ZJhLVAOQyVvzB9c4DuWKOkdi/jqr3XgL10 wKkvvLqQPuWdDcQzjq0laRoRbg== X-Google-Smtp-Source: AGHT+IExNo44l9xvr3Uvnq63IE4OvYn910JG+8iv9WqqfeyEBDscBkCmKkFryAUhYUkVXPNzMLuCbw== X-Received: by 2002:aa7:db45:0:b0:533:520:a5a8 with SMTP id n5-20020aa7db45000000b005330520a5a8mr23756049edt.29.1697197089849; Fri, 13 Oct 2023 04:38:09 -0700 (PDT) Received: from otso.luca.vpn.lucaweiss.eu (144-178-202-138.static.ef-service.nl. [144.178.202.138]) by smtp.gmail.com with ESMTPSA id v18-20020aa7d652000000b00533dad8a9c5sm11360772edr.38.2023.10.13.04.38.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Oct 2023 04:38:09 -0700 (PDT) From: Luca Weiss Date: Fri, 13 Oct 2023 13:38:06 +0200 Subject: [PATCH 2/3] usb: typec: fsa4480: Add support to swap SBU orientation MIME-Version: 1.0 Message-Id: <20231013-fsa4480-swap-v1-2-b877f62046cc@fairphone.com> References: <20231013-fsa4480-swap-v1-0-b877f62046cc@fairphone.com> In-Reply-To: <20231013-fsa4480-swap-v1-0-b877f62046cc@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 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org 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. Signed-off-by: Luca Weiss --- drivers/usb/typec/mux/fsa4480.c | 81 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/drivers/usb/typec/mux/fsa4480.c b/drivers/usb/typec/mux/fsa4480.c index e0ee1f621abb..6ee467c96fb6 100644 --- a/drivers/usb/typec/mux/fsa4480.c +++ b/drivers/usb/typec/mux/fsa4480.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -60,6 +61,7 @@ struct fsa4480 { unsigned int svid; u8 cur_enable; + bool swap_sbu_lanes; }; static const struct regmap_config fsa4480_regmap_config = { @@ -76,6 +78,9 @@ 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 +184,84 @@ 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 device_node *ep; + u32 data_lanes[DATA_LANES_COUNT]; + int ret, i, j; + + ep = of_graph_get_next_endpoint(fsa->client->dev.of_node, NULL); + if (!ep) + return 0; + + ret = of_property_count_u32_elems(ep, "data-lanes"); + if (ret == -EINVAL) + /* Property isn't here, consider default mapping */ + goto out_done; + if (ret < 0) + goto out_error; + + if (ret != DATA_LANES_COUNT) { + dev_err(&fsa->client->dev, "expected 2 data lanes\n"); + ret = -EINVAL; + goto out_error; + } + + ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT); + if (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; + dev_info(&fsa->client->dev, "using inverted data lanes mapping\n"); + break; + default: + dev_err(&fsa->client->dev, "invalid data lanes mapping\n"); + ret = -EINVAL; + goto out_error; + } + +out_done: + ret = 0; + +out_error: + of_node_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 +270,10 @@ 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"); 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[144.178.202.138]) by smtp.gmail.com with ESMTPSA id v18-20020aa7d652000000b00533dad8a9c5sm11360772edr.38.2023.10.13.04.38.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Oct 2023 04:38:10 -0700 (PDT) From: Luca Weiss Date: Fri, 13 Oct 2023 13:38:07 +0200 Subject: [PATCH 3/3] dt-bindings: usb: fsa4480: Add compatible for OCP96011 MIME-Version: 1.0 Message-Id: <20231013-fsa4480-swap-v1-3-b877f62046cc@fairphone.com> References: <20231013-fsa4480-swap-v1-0-b877f62046cc@fairphone.com> In-Reply-To: <20231013-fsa4480-swap-v1-0-b877f62046cc@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 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org 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 --- 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