From patchwork Sat Dec 16 10:46:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 13495532 Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 30ABE1798C for ; Sat, 16 Dec 2023 10:46:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--kyletso.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="jSuT57tB" Received: by mail-pl1-f202.google.com with SMTP id d9443c01a7336-1d1e2283b6dso18816205ad.2 for ; Sat, 16 Dec 2023 02:46:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1702723600; x=1703328400; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=0q+Zfqxq2/R8EkmwJGu4avOaoQHM8BsDRaRgTFlf+Us=; b=jSuT57tB7m70zlOiU106UdPa3/FsCHFMcws2mzGChsxXZBBC1VY8TaLSk7/x86FdbA JOLgUxyTBYH9aPXvZEbFautPOnjuZlzn8B5ALjqt2y5YZTReeKwQW3nFdBZDLHPylBSu 7zlYZ6VdyjbAqgYCLHSSAI1L5AQ0UBL1G/nFT7lsoILBXBqIsK6SWHofxyRnU7RvIQLm hcH0nMXypaPpRHsT6VPtuLiO36TGb4eCzx9240YdHsKhzQ2og6TNVuQ1REG+fjYD2Cmt 0zxohk8NpLpyJrz3Pf8j4Y4R6eh75HPn+xr3scRDvHRxF0RytN0SmT9w5aKbj6Vtc8pQ /Q2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702723600; x=1703328400; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=0q+Zfqxq2/R8EkmwJGu4avOaoQHM8BsDRaRgTFlf+Us=; b=Yq5bFM0/xBQaTzhS913//lSrdLOc9rWko1dZHBfqOWfBwkQ/33p3DGB5PZliDLs3Au jevFWCOYFslKfBuR/DTKQVreXk4c6ciq1IhjaohaM7rp1/B1S4wzTgKP4ztOuQ6SrGIV dhtgwkPDGUOKYDsvG+WE4rKDJdzbVy34SnKabN0xpVwwEDRrlnCFEbPUVF68fqDqIQBe pGMJjx0LjQyE5RhQQFyKDcv2UbicdRJwakGNCxdTx0iZfelFdLvsptWgGSScAFXe3LoD 0Es68hDlR6T1d6aIL/XqsdC9dsKx1hmEn9PeAObSvQEqOqHvltBYHgS+oCnzPZCw5dhE D4ig== X-Gm-Message-State: AOJu0YzcUjgQ1+rfHO+KyAXCWAxm5XsbCwMXyF2o99qTkvfqB9M0rPVw MYkJzUqipzopy0oT40cpMnTdd/zHNV7N X-Google-Smtp-Source: AGHT+IEN0TVakGsmf0aEqYEvqxP6CCJgxrPE13UXNLaoi+YtzlafK4M84Pd9Xyxtj2IUoWujx8G8APDzQiZw X-Received: from kyletso-p620lin01.ntc.corp.google.com ([2401:fa00:fc:202:dd61:6f37:fe44:8be9]) (user=kyletso job=sendgmr) by 2002:a17:902:e881:b0:1d3:8ed4:dddf with SMTP id w1-20020a170902e88100b001d38ed4dddfmr169842plg.11.1702723600354; Sat, 16 Dec 2023 02:46:40 -0800 (PST) Date: Sat, 16 Dec 2023 18:46:29 +0800 In-Reply-To: <20231216104630.2720818-1-kyletso@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20231216104630.2720818-1-kyletso@google.com> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog Message-ID: <20231216104630.2720818-2-kyletso@google.com> Subject: [PATCH v6 1/2] dt-bindings: connector: Add child nodes for multiple PD capabilities From: Kyle Tso To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org Cc: badhri@google.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Kyle Tso , Rob Herring Commit 662a60102c12 ("usb: typec: Separate USB Power Delivery from USB Type-C") allows userspace to configure the PD of a port by selecting different set of predefined PD capabilities. Define the PD capability sets in DT for better configurability in device modules. Define an optional child node "capabilities" to contain multiple USB Power Delivery capabilities. Define child nodes with pattern (e.g. caps-0, caps-1) under "capabilities". Each node contains PDO data of a selectable Power Delivery capability. Also define common properties for source-pdos, sink-pdos, and op-sink-microwatt that can be referenced. Signed-off-by: Kyle Tso Link: https://lore.kernel.org/r/20231205030114.1349089-2-kyletso@google.com Signed-off-by: Rob Herring --- v5 --> v6: - Rob did some changes. So I directly cherry-picked it from the git: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git/commit/?h=dt/next&id=0d3a771610d0e155c9aa305f142f84dda5030fae .../bindings/connector/usb-connector.yaml | 81 ++++++++++++------- 1 file changed, 50 insertions(+), 31 deletions(-) diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml index 7c8a3e8430d3..5a93cdb9fdbc 100644 --- a/Documentation/devicetree/bindings/connector/usb-connector.yaml +++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml @@ -66,7 +66,6 @@ properties: Particularly, if use an output GPIO to control a VBUS regulator, should model it as a regulator. See bindings/regulator/fixed-regulator.yaml - # The following are optional properties for "usb-c-connector". power-role: description: Determines the power role that the Type C connector will support. "dual" refers to Dual Role Port (DRP). @@ -119,30 +118,6 @@ properties: # The following are optional properties for "usb-c-connector" with power # delivery support. - source-pdos: - description: An array of u32 with each entry providing supported power - source data object(PDO), the detailed bit definitions of PDO can be found - in "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.2 - Source_Capabilities Message, the order of each entry(PDO) should follow - the PD spec chapter 6.4.1. Required for power source and power dual role. - User can specify the source PDO array via PDO_FIXED/BATT/VAR/PPS_APDO() - defined in dt-bindings/usb/pd.h. - minItems: 1 - maxItems: 7 - $ref: /schemas/types.yaml#/definitions/uint32-array - - sink-pdos: - description: An array of u32 with each entry providing supported power sink - data object(PDO), the detailed bit definitions of PDO can be found in - "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.3 - Sink Capabilities Message, the order of each entry(PDO) should follow the - PD spec chapter 6.4.1. Required for power sink and power dual role. User - can specify the sink PDO array via PDO_FIXED/BATT/VAR/PPS_APDO() defined - in dt-bindings/usb/pd.h. - minItems: 1 - maxItems: 7 - $ref: /schemas/types.yaml#/definitions/uint32-array - sink-vdos: description: An array of u32 with each entry, a Vendor Defined Message Object (VDO), providing additional information corresponding to the product, the detailed bit @@ -166,11 +141,6 @@ properties: maxItems: 6 $ref: /schemas/types.yaml#/definitions/uint32-array - op-sink-microwatt: - description: Sink required operating power in microwatt, if source can't - offer the power, Capability Mismatch is set. Required for power sink and - power dual role. - port: $ref: /schemas/graph.yaml#/properties/port description: OF graph bindings modeling a data bus to the connector, e.g. @@ -231,6 +201,20 @@ properties: SNK_READY for non-pd link. type: boolean + capabilities: + description: A child node to contain all the selectable USB Power Delivery capabilities. + type: object + + patternProperties: + "^caps-[0-9]+$": + description: Child nodes under "capabilities" node. Each node contains a selectable USB + Power Delivery capability. + type: object + $ref: "#/$defs/capabilities" + unevaluatedProperties: false + + additionalProperties: false + dependencies: sink-vdos-v1: [ sink-vdos ] sink-vdos: [ sink-vdos-v1 ] @@ -238,7 +222,42 @@ dependencies: required: - compatible +$defs: + capabilities: + type: object + + properties: + source-pdos: + description: An array of u32 with each entry providing supported power + source data object(PDO), the detailed bit definitions of PDO can be found + in "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.2 + Source_Capabilities Message, the order of each entry(PDO) should follow + the PD spec chapter 6.4.1. Required for power source and power dual role. + User can specify the source PDO array via PDO_FIXED/BATT/VAR/PPS_APDO() + defined in dt-bindings/usb/pd.h. + minItems: 1 + maxItems: 7 + $ref: /schemas/types.yaml#/definitions/uint32-array + + sink-pdos: + description: An array of u32 with each entry providing supported power sink + data object(PDO), the detailed bit definitions of PDO can be found in + "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.3 + Sink Capabilities Message, the order of each entry(PDO) should follow the + PD spec chapter 6.4.1. Required for power sink and power dual role. User + can specify the sink PDO array via PDO_FIXED/BATT/VAR/PPS_APDO() defined + in dt-bindings/usb/pd.h. + minItems: 1 + maxItems: 7 + $ref: /schemas/types.yaml#/definitions/uint32-array + + op-sink-microwatt: + description: Sink required operating power in microwatt, if source can't + offer the power, Capability Mismatch is set. Required for power sink and + power dual role. + allOf: + - $ref: "#/$defs/capabilities" - if: properties: compatible: @@ -267,7 +286,7 @@ anyOf: - typec-power-opmode - new-source-frs-typec-current -additionalProperties: false +unevaluatedProperties: false examples: # Micro-USB connector with HS lines routed via controller (MUIC). From patchwork Sat Dec 16 10:46:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 13495533 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3C14518ECF for ; Sat, 16 Dec 2023 10:46:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--kyletso.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="eOI8CBGE" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-5ca2e530041so17360187b3.3 for ; Sat, 16 Dec 2023 02:46:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1702723604; x=1703328404; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=XCoql+eGgqszKLUR0lOuaVmFyiaIoGW5HR3BXObH2MU=; b=eOI8CBGEPlcQ1SguA46ESGBwoczrbCkp3yaF0QrGrQzVctS7Pc2jD7sWyOM4ytUZA2 yCnu0ekBt7W7YRfPmu/eZc7We36ID71YhctFBYrNUY1at6+7Jrc1wHC2VeOj0q70LZXh Vl0IuCu4bbUlDuMcBpzY56W4YMFgmUx++N1wk7tvhLj3bGWRq0tU2twVTAACc4NRHg6G 7mKhAYeDB7eSImpbbPXKa6FzUtuvh4VOUiMbSda0hAdNAkpGe4CNsgsHJkvNevSKxOYb UUzVkEf4uvsR508uQXbHICvQqcbjT4eisrstKdO1oAicJT4yuJgRxc2hwpYj6GPNGoU9 GFYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702723604; x=1703328404; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=XCoql+eGgqszKLUR0lOuaVmFyiaIoGW5HR3BXObH2MU=; b=bj4WcKdPHiMNrMgjgzgdYLtTQYMG9XT+ooZAxpAtlzKfQG3vPojPv9YnpZICpSfTmg ojRbz3vAGDkWcFE+WVQ791wbb0pO0gBhPT+wWEIrbvykyd8q7TDU7OiArcPOtr8Ouzf4 1MYmt4q2KHUHC0AED3Gqxqw68b2INlOkbbC9OakUloB4aACbPLHJ8KYdF/HADOAH/F00 Rw7h4RWH1zISrNTeheXurcd8XCToP0vhGaD4u9IekmyEjGav5q9ytS2oeB2zWAdRGrFB cHC13sUNgJxHAkU6Pu6seaTN09dnYyyKWBhD8+/y1tkBVeW/HKS2npAsbgUdQcpKz5eJ 7aSQ== X-Gm-Message-State: AOJu0Yz/U39zmyjHDZvuiP/XQjFU9ADaNBYCM2hSCxLOY2OdoGoR3Kow qhy8wQY/KNfUYuJIwhN8NnbI8Rd1JSzg X-Google-Smtp-Source: AGHT+IH2IUz70Wba/OhEPBUZUqyJtWA7/3Z3ykUcqk08upTXIul2SNIz3+6ih0AJKnvLRMIU4yuqDbw6Ae3Y X-Received: from kyletso-p620lin01.ntc.corp.google.com ([2401:fa00:fc:202:dd61:6f37:fe44:8be9]) (user=kyletso job=sendgmr) by 2002:a05:690c:3387:b0:5d3:84d4:eb35 with SMTP id fl7-20020a05690c338700b005d384d4eb35mr603173ywb.3.1702723604269; Sat, 16 Dec 2023 02:46:44 -0800 (PST) Date: Sat, 16 Dec 2023 18:46:30 +0800 In-Reply-To: <20231216104630.2720818-1-kyletso@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20231216104630.2720818-1-kyletso@google.com> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog Message-ID: <20231216104630.2720818-3-kyletso@google.com> Subject: [PATCH v6 2/2] usb: typec: tcpm: Support multiple capabilities From: Kyle Tso To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org Cc: badhri@google.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Kyle Tso Refactor tcpm_fw_get_caps to support the multiple pd capabilities got from fwnode. For backward compatibility, the original single capability is still applicable. The fetched data is stored in the newly defined structure "pd_data" and there is an array "pd_list" to store the pointers to them. A dedicated array "pds" is used to store the handles of the registered usb_power_delivery instances. Also implement the .pd_get and .pd_set ops which are introduced in commit a7cff92f0635 ("usb: typec: USB Power Delivery helpers for ports and partners"). Once the .pd_set is called, the current capability will be updated and state machine will re-negotiate the power contract if possible. Signed-off-by: Kyle Tso Reviewed-by: Heikki Krogerus --- v5 -> v6: - Removed the function tcpm_fw_get_properties - Merged it to tcpm_fw_get_caps drivers/usb/typec/tcpm/tcpm.c | 387 ++++++++++++++++++++++++++-------- 1 file changed, 298 insertions(+), 89 deletions(-) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index ff67553b6932..e11d680fd8b7 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -297,6 +297,15 @@ struct pd_pps_data { bool active; }; +struct pd_data { + struct usb_power_delivery *pd; + struct usb_power_delivery_capabilities *source_cap; + struct usb_power_delivery_capabilities_desc source_desc; + struct usb_power_delivery_capabilities *sink_cap; + struct usb_power_delivery_capabilities_desc sink_desc; + unsigned int operating_snk_mw; +}; + struct tcpm_port { struct device *dev; @@ -398,12 +407,14 @@ struct tcpm_port { unsigned int rx_msgid; /* USB PD objects */ - struct usb_power_delivery *pd; + struct usb_power_delivery **pds; + struct pd_data **pd_list; struct usb_power_delivery_capabilities *port_source_caps; struct usb_power_delivery_capabilities *port_sink_caps; struct usb_power_delivery *partner_pd; struct usb_power_delivery_capabilities *partner_source_caps; struct usb_power_delivery_capabilities *partner_sink_caps; + struct usb_power_delivery *selected_pd; /* Partner capabilities/requests */ u32 sink_request; @@ -413,6 +424,7 @@ struct tcpm_port { unsigned int nr_sink_caps; /* Local capabilities */ + unsigned int pd_count; u32 src_pdo[PDO_MAX_OBJECTS]; unsigned int nr_src_pdo; u32 snk_pdo[PDO_MAX_OBJECTS]; @@ -6059,12 +6071,114 @@ static int tcpm_port_type_set(struct typec_port *p, enum typec_port_type type) return 0; } +static struct pd_data *tcpm_find_pd_data(struct tcpm_port *port, struct usb_power_delivery *pd) +{ + int i; + + for (i = 0; port->pd_list[i]; i++) { + if (port->pd_list[i]->pd == pd) + return port->pd_list[i]; + } + + return ERR_PTR(-ENODATA); +} + +static struct usb_power_delivery **tcpm_pd_get(struct typec_port *p) +{ + struct tcpm_port *port = typec_get_drvdata(p); + + return port->pds; +} + +static int tcpm_pd_set(struct typec_port *p, struct usb_power_delivery *pd) +{ + struct tcpm_port *port = typec_get_drvdata(p); + struct pd_data *data; + int i, ret = 0; + + mutex_lock(&port->lock); + + if (port->selected_pd == pd) + goto unlock; + + data = tcpm_find_pd_data(port, pd); + if (IS_ERR(data)) { + ret = PTR_ERR(data); + goto unlock; + } + + if (data->sink_desc.pdo[0]) { + for (i = 0; i < PDO_MAX_OBJECTS && data->sink_desc.pdo[i]; i++) + port->snk_pdo[i] = data->sink_desc.pdo[i]; + port->nr_snk_pdo = i + 1; + port->operating_snk_mw = data->operating_snk_mw; + } + + if (data->source_desc.pdo[0]) { + for (i = 0; i < PDO_MAX_OBJECTS && data->source_desc.pdo[i]; i++) + port->snk_pdo[i] = data->source_desc.pdo[i]; + port->nr_src_pdo = i + 1; + } + + switch (port->state) { + case SRC_UNATTACHED: + case SRC_ATTACH_WAIT: + case SRC_TRYWAIT: + tcpm_set_cc(port, tcpm_rp_cc(port)); + break; + case SRC_SEND_CAPABILITIES: + case SRC_SEND_CAPABILITIES_TIMEOUT: + case SRC_NEGOTIATE_CAPABILITIES: + case SRC_READY: + case SRC_WAIT_NEW_CAPABILITIES: + port->caps_count = 0; + port->upcoming_state = SRC_SEND_CAPABILITIES; + ret = tcpm_ams_start(port, POWER_NEGOTIATION); + if (ret == -EAGAIN) { + port->upcoming_state = INVALID_STATE; + goto unlock; + } + break; + case SNK_NEGOTIATE_CAPABILITIES: + case SNK_NEGOTIATE_PPS_CAPABILITIES: + case SNK_READY: + case SNK_TRANSITION_SINK: + case SNK_TRANSITION_SINK_VBUS: + if (port->pps_data.active) + port->upcoming_state = SNK_NEGOTIATE_PPS_CAPABILITIES; + else if (port->pd_capable) + port->upcoming_state = SNK_NEGOTIATE_CAPABILITIES; + else + break; + + port->update_sink_caps = true; + + ret = tcpm_ams_start(port, POWER_NEGOTIATION); + if (ret == -EAGAIN) { + port->upcoming_state = INVALID_STATE; + goto unlock; + } + break; + default: + break; + } + + port->port_source_caps = data->source_cap; + port->port_sink_caps = data->sink_cap; + port->selected_pd = pd; +unlock: + mutex_unlock(&port->lock); + return ret; +} + static const struct typec_operations tcpm_ops = { .try_role = tcpm_try_role, .dr_set = tcpm_dr_set, .pr_set = tcpm_pr_set, .vconn_set = tcpm_vconn_set, - .port_type_set = tcpm_port_type_set + .port_type_set = tcpm_port_type_set, + .pd_get = tcpm_pd_get, + .pd_set = tcpm_pd_set }; void tcpm_tcpc_reset(struct tcpm_port *port) @@ -6078,58 +6192,63 @@ EXPORT_SYMBOL_GPL(tcpm_tcpc_reset); static void tcpm_port_unregister_pd(struct tcpm_port *port) { - usb_power_delivery_unregister_capabilities(port->port_sink_caps); + int i; + port->port_sink_caps = NULL; - usb_power_delivery_unregister_capabilities(port->port_source_caps); port->port_source_caps = NULL; - usb_power_delivery_unregister(port->pd); - port->pd = NULL; + for (i = 0; i < port->pd_count; i++) { + usb_power_delivery_unregister_capabilities(port->pd_list[i]->sink_cap); + kfree(port->pd_list[i]->sink_cap); + usb_power_delivery_unregister_capabilities(port->pd_list[i]->source_cap); + kfree(port->pd_list[i]->source_cap); + devm_kfree(port->dev, port->pd_list[i]); + port->pd_list[i] = NULL; + usb_power_delivery_unregister(port->pds[i]); + port->pds[i] = NULL; + } } static int tcpm_port_register_pd(struct tcpm_port *port) { struct usb_power_delivery_desc desc = { port->typec_caps.pd_revision }; - struct usb_power_delivery_capabilities_desc caps = { }; struct usb_power_delivery_capabilities *cap; - int ret; + int ret, i; if (!port->nr_src_pdo && !port->nr_snk_pdo) return 0; - port->pd = usb_power_delivery_register(port->dev, &desc); - if (IS_ERR(port->pd)) { - ret = PTR_ERR(port->pd); - goto err_unregister; - } - - if (port->nr_src_pdo) { - memcpy_and_pad(caps.pdo, sizeof(caps.pdo), port->src_pdo, - port->nr_src_pdo * sizeof(u32), 0); - caps.role = TYPEC_SOURCE; - - cap = usb_power_delivery_register_capabilities(port->pd, &caps); - if (IS_ERR(cap)) { - ret = PTR_ERR(cap); + for (i = 0; i < port->pd_count; i++) { + port->pds[i] = usb_power_delivery_register(port->dev, &desc); + if (IS_ERR(port->pds[i])) { + ret = PTR_ERR(port->pds[i]); goto err_unregister; } - - port->port_source_caps = cap; - } - - if (port->nr_snk_pdo) { - memcpy_and_pad(caps.pdo, sizeof(caps.pdo), port->snk_pdo, - port->nr_snk_pdo * sizeof(u32), 0); - caps.role = TYPEC_SINK; - - cap = usb_power_delivery_register_capabilities(port->pd, &caps); - if (IS_ERR(cap)) { - ret = PTR_ERR(cap); - goto err_unregister; + port->pd_list[i]->pd = port->pds[i]; + + if (port->pd_list[i]->source_desc.pdo[0]) { + cap = usb_power_delivery_register_capabilities(port->pds[i], + &port->pd_list[i]->source_desc); + if (IS_ERR(cap)) { + ret = PTR_ERR(cap); + goto err_unregister; + } + port->pd_list[i]->source_cap = cap; } - port->port_sink_caps = cap; + if (port->pd_list[i]->sink_desc.pdo[0]) { + cap = usb_power_delivery_register_capabilities(port->pds[i], + &port->pd_list[i]->sink_desc); + if (IS_ERR(cap)) { + ret = PTR_ERR(cap); + goto err_unregister; + } + port->pd_list[i]->sink_cap = cap; + } } + port->port_source_caps = port->pd_list[0]->source_cap; + port->port_sink_caps = port->pd_list[0]->sink_cap; + port->selected_pd = port->pds[0]; return 0; err_unregister: @@ -6138,12 +6257,14 @@ static int tcpm_port_register_pd(struct tcpm_port *port) return ret; } -static int tcpm_fw_get_caps(struct tcpm_port *port, - struct fwnode_handle *fwnode) +static int tcpm_fw_get_caps(struct tcpm_port *port, struct fwnode_handle *fwnode) { + struct fwnode_handle *capabilities, *child, *caps = NULL; + unsigned int nr_src_pdo, nr_snk_pdo; const char *opmode_str; - int ret; - u32 mw, frs_current; + u32 *src_pdo, *snk_pdo; + u32 uw, frs_current; + int ret = 0, i; if (!fwnode) return -EINVAL; @@ -6163,28 +6284,10 @@ static int tcpm_fw_get_caps(struct tcpm_port *port, port->port_type = port->typec_caps.type; port->pd_supported = !fwnode_property_read_bool(fwnode, "pd-disable"); - port->slow_charger_loop = fwnode_property_read_bool(fwnode, "slow-charger-loop"); - if (port->port_type == TYPEC_PORT_SNK) - goto sink; - - /* Get Source PDOs for the PD port or Source Rp value for the non-PD port */ - if (port->pd_supported) { - ret = fwnode_property_count_u32(fwnode, "source-pdos"); - if (ret == 0) - return -EINVAL; - else if (ret < 0) - return ret; + port->self_powered = fwnode_property_read_bool(fwnode, "self-powered"); - port->nr_src_pdo = min(ret, PDO_MAX_OBJECTS); - ret = fwnode_property_read_u32_array(fwnode, "source-pdos", - port->src_pdo, port->nr_src_pdo); - if (ret) - return ret; - ret = tcpm_validate_caps(port, port->src_pdo, port->nr_src_pdo); - if (ret) - return ret; - } else { + if (!port->pd_supported) { ret = fwnode_property_read_string(fwnode, "typec-power-opmode", &opmode_str); if (ret) return ret; @@ -6192,45 +6295,150 @@ static int tcpm_fw_get_caps(struct tcpm_port *port, if (ret < 0) return ret; port->src_rp = tcpm_pwr_opmode_to_rp(ret); - } - - if (port->port_type == TYPEC_PORT_SRC) - return 0; - -sink: - port->self_powered = fwnode_property_read_bool(fwnode, "self-powered"); - - if (!port->pd_supported) return 0; + } - /* Get sink pdos */ - ret = fwnode_property_count_u32(fwnode, "sink-pdos"); - if (ret <= 0) - return -EINVAL; - - port->nr_snk_pdo = min(ret, PDO_MAX_OBJECTS); - ret = fwnode_property_read_u32_array(fwnode, "sink-pdos", - port->snk_pdo, port->nr_snk_pdo); - if ((ret < 0) || tcpm_validate_caps(port, port->snk_pdo, - port->nr_snk_pdo)) - return -EINVAL; - - if (fwnode_property_read_u32(fwnode, "op-sink-microwatt", &mw) < 0) - return -EINVAL; - port->operating_snk_mw = mw / 1000; + /* The following code are applicable to pd-capable ports, i.e. pd_supported is true. */ /* FRS can only be supported by DRP ports */ if (port->port_type == TYPEC_PORT_DRP) { ret = fwnode_property_read_u32(fwnode, "new-source-frs-typec-current", &frs_current); - if (ret >= 0 && frs_current <= FRS_5V_3A) + if (!ret && frs_current <= FRS_5V_3A) port->new_source_frs_current = frs_current; + + if (ret) + ret = 0; } + /* For the backward compatibility, "capabilities" node is optional. */ + capabilities = fwnode_get_named_child_node(fwnode, "capabilities"); + if (!capabilities) { + port->pd_count = 1; + } else { + fwnode_for_each_child_node(capabilities, child) + port->pd_count++; + + if (!port->pd_count) { + ret = -ENODATA; + goto put_capabilities; + } + } + + port->pds = devm_kcalloc(port->dev, port->pd_count, sizeof(struct usb_power_delivery *), + GFP_KERNEL); + if (!port->pds) { + ret = -ENOMEM; + goto put_capabilities; + } + + port->pd_list = devm_kcalloc(port->dev, port->pd_count, sizeof(struct pd_data *), + GFP_KERNEL); + if (!port->pd_list) { + ret = -ENOMEM; + goto put_capabilities; + } + + for (i = 0; i < port->pd_count; i++) { + port->pd_list[i] = devm_kzalloc(port->dev, sizeof(struct pd_data), GFP_KERNEL); + if (!port->pd_list[i]) { + ret = -ENOMEM; + goto put_capabilities; + } + + src_pdo = port->pd_list[i]->source_desc.pdo; + port->pd_list[i]->source_desc.role = TYPEC_SOURCE; + snk_pdo = port->pd_list[i]->sink_desc.pdo; + port->pd_list[i]->sink_desc.role = TYPEC_SINK; + + /* If "capabilities" is NULL, fall back to single pd cap population. */ + if (!capabilities) + caps = fwnode; + else + caps = fwnode_get_next_child_node(capabilities, caps); + + if (port->port_type != TYPEC_PORT_SNK) { + ret = fwnode_property_count_u32(caps, "source-pdos"); + if (ret == 0) { + ret = -EINVAL; + goto put_caps; + } + if (ret < 0) + goto put_caps; + + nr_src_pdo = min(ret, PDO_MAX_OBJECTS); + ret = fwnode_property_read_u32_array(caps, "source-pdos", src_pdo, + nr_src_pdo); + if (ret) + goto put_caps; + + ret = tcpm_validate_caps(port, src_pdo, nr_src_pdo); + if (ret) + goto put_caps; + + if (i == 0) { + port->nr_src_pdo = nr_src_pdo; + memcpy_and_pad(port->src_pdo, sizeof(u32) * PDO_MAX_OBJECTS, + port->pd_list[0]->source_desc.pdo, + sizeof(u32) * nr_src_pdo, + 0); + } + } + + if (port->port_type != TYPEC_PORT_SRC) { + ret = fwnode_property_count_u32(caps, "sink-pdos"); + if (ret == 0) { + ret = -EINVAL; + goto put_caps; + } + + if (ret < 0) + goto put_caps; + + nr_snk_pdo = min(ret, PDO_MAX_OBJECTS); + ret = fwnode_property_read_u32_array(caps, "sink-pdos", snk_pdo, + nr_snk_pdo); + if (ret) + goto put_caps; + + ret = tcpm_validate_caps(port, snk_pdo, nr_snk_pdo); + if (ret) + goto put_caps; + + if (fwnode_property_read_u32(caps, "op-sink-microwatt", &uw) < 0) { + ret = -EINVAL; + goto put_caps; + } + + port->pd_list[i]->operating_snk_mw = uw / 1000; + + if (i == 0) { + port->nr_snk_pdo = nr_snk_pdo; + memcpy_and_pad(port->snk_pdo, sizeof(u32) * PDO_MAX_OBJECTS, + port->pd_list[0]->sink_desc.pdo, + sizeof(u32) * nr_snk_pdo, + 0); + port->operating_snk_mw = port->pd_list[0]->operating_snk_mw; + } + } + } + +put_caps: + if (caps != fwnode) + fwnode_handle_put(caps); +put_capabilities: + fwnode_handle_put(capabilities); + return ret; +} + +static int tcpm_fw_get_snk_vdos(struct tcpm_port *port, struct fwnode_handle *fwnode) +{ + int ret; + /* sink-vdos is optional */ ret = fwnode_property_count_u32(fwnode, "sink-vdos"); if (ret < 0) - ret = 0; + return 0; port->nr_snk_vdo = min(ret, VDO_MAX_OBJECTS); if (port->nr_snk_vdo) { @@ -6596,12 +6804,14 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) tcpm_debugfs_init(port); err = tcpm_fw_get_caps(port, tcpc->fwnode); + if (err < 0) + goto out_destroy_wq; + err = tcpm_fw_get_snk_vdos(port, tcpc->fwnode); if (err < 0) goto out_destroy_wq; port->try_role = port->typec_caps.prefer_role; - port->typec_caps.fwnode = tcpc->fwnode; port->typec_caps.revision = 0x0120; /* Type-C spec release 1.2 */ port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */ port->typec_caps.svdm_version = SVDM_VER_2_0; @@ -6610,7 +6820,6 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) port->typec_caps.orientation_aware = 1; port->partner_desc.identity = &port->partner_ident; - port->port_type = port->typec_caps.type; port->role_sw = usb_role_switch_get(port->dev); if (!port->role_sw) @@ -6629,7 +6838,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) if (err) goto out_role_sw_put; - port->typec_caps.pd = port->pd; + port->typec_caps.pd = port->pds[0]; port->typec_port = typec_register_port(port->dev, &port->typec_caps); if (IS_ERR(port->typec_port)) {