From patchwork Mon Dec 4 17:22:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 13478809 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="iJHL+ain" Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 006FB109 for ; Mon, 4 Dec 2023 09:22:59 -0800 (PST) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-5d33b70fce8so64762077b3.0 for ; Mon, 04 Dec 2023 09:22:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1701710579; x=1702315379; 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=QagWLgs2h5+JriAq/VG8W2CPIQLr8/EIksrOH5rGRok=; b=iJHL+ainzGbec5xnxYzL0+kGDHtG3jttn9tf8pvu0apBSrFXzhHpO1YylpaIQTkpsK eJSlsEf2q5/xvv0pKOocrI6a0h72GFWUxCNXc3SqwjoKybTD2Aj4eTzTqe0rFV6Y2DsQ c8uSx4mOFkIxRN1bJ33tboq33x0lhqsCAujr3dI7nAfJvzEAP4PlXjXCP49gU1q74KZ4 y32O3BVUu+qSSQuB4Y0dSgjCdQN1/xi6VnEh98xRxT52pvMO2K9J+qPvSDx/zMt1LYsM LZjpjVsy4Lt9qA2HitMPf9Bf5Ygt5o33UgvU79NmEUx633kxMwSLKLH+W4wHBbc+shBb fqVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701710579; x=1702315379; 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=QagWLgs2h5+JriAq/VG8W2CPIQLr8/EIksrOH5rGRok=; b=HP/Cb5YqoBAwgSE9wk+KqWAnWvbYRVMUGGjHNVNAgbpckYXQXqUJfkEVm95TbwUBu0 FtuwoRN2LwMDP76pQhs3hc5//IPEtkofC9nedCaTCNrvzxIiuk44yCypGi8jQ+T/Ib1j ii7SBkdc+Mh7jA+QXjo8CiSVtevxq7N5oVjcicQODL+V+vgoGBA9QIULqw36PZKsTNKn sSWRjICpJVZd1a4UT/56CDKI9f9pXSHBnJOFqc2sNu5Cht5CmMUT7kQ2rXJ3Yir7FRVH 9/+aNPjws0uuam/Hfh/K2Yszq5j/BDN4iX9PAI/8DyhUl7z5nQ8O6M311hrnvm7k75W5 XvSg== X-Gm-Message-State: AOJu0Yye+yNMvveHxiJuSHIj1NrPP1b04BKMa20afa4z7mollVlkBYl5 A5qpNG+M43x9MHPATq/kb6uG4wtRSCJE X-Google-Smtp-Source: AGHT+IEd9vWzgDWbNklyIFzMD3b54MAcf1KAW0FQHYWTCA9FVIaju91gFmTJLgGBIMKSsG84zlbDdhS7HGBy X-Received: from kyletso-p620lin01.ntc.corp.google.com ([2401:fa00:fc:202:ac51:a57:5e72:a957]) (user=kyletso job=sendgmr) by 2002:a81:4425:0:b0:5d3:472b:3427 with SMTP id r37-20020a814425000000b005d3472b3427mr393951ywa.6.1701710579266; Mon, 04 Dec 2023 09:22:59 -0800 (PST) Date: Tue, 5 Dec 2023 01:22:46 +0800 In-Reply-To: <20231204172247.1087152-1-kyletso@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20231204172247.1087152-1-kyletso@google.com> X-Mailer: git-send-email 2.43.0.rc2.451.g8631bc7472-goog Message-ID: <20231204172247.1087152-2-kyletso@google.com> Subject: [PATCH v4 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 The realtime Power Delivery capabilities of a port may not be always the same under different hardware status such as the port usage of a multiple port system or the status of the battery pack. Define the PD capability sets in DT for better configurability in Type-C/PD port drivers. 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 --- v3 -> v4 - modified the structure of the bindings as corrected in v2 - modified the commit message to better describe the reason of this change .../bindings/connector/usb-connector.yaml | 78 ++++++++++++------- 1 file changed, 49 insertions(+), 29 deletions(-) diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml index 7c8a3e8430d3..50fec97436d8 100644 --- a/Documentation/devicetree/bindings/connector/usb-connector.yaml +++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml @@ -14,6 +14,8 @@ description: of a USB interface controller or a separate node when it is attached to both MUX and USB interface controller. +$ref: "#/$defs/capabilities" + properties: compatible: oneOf: @@ -119,30 +121,6 @@ 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 +144,6 @@ 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: $ref: /schemas/graph.yaml#/properties/port description: OF graph bindings modeling a data bus to the connector, e.g. @@ -231,6 +204,21 @@ properties: SNK_READY for non-pd link. type: boolean + capabilities: + description: A child node to contain all the selectable USB Power Delivery capabilities. + type: object + + patternProperties: + "^caps-[0-9]+$": + 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 ] @@ -238,6 +226,38 @@ dependencies: required: - compatible +$defs: + capabilities: + 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: - if: properties: From patchwork Mon Dec 4 17:22:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 13478810 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="LTdTiE1S" Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EBB50F2 for ; Mon, 4 Dec 2023 09:23:03 -0800 (PST) Received: by mail-yb1-xb4a.google.com with SMTP id 3f1490d57ef6-dae71322ed4so3032463276.1 for ; Mon, 04 Dec 2023 09:23:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1701710583; x=1702315383; 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=IMTdqm5zTqzrJY530vTWepDMpb2IhVN8gCn/w9vuFws=; b=LTdTiE1S3yT9tXk0HTE1Iu+7Ll5D8u07EviSov0FxkAIoXShM8IhLaCFfzX5pGKC0e EDwOxKKuf2FlBg8xU1KV/qlkhzmbeuJ2fwzATkkga19uLbs/fuxP0ukhpZdCnB8+8W1h YU+dcNru63cFnsChDr0sCEHzT8aKeqnIQZxRmXaza0ttyImQaCMdHD5McxLquxBuZd6y I6ObReA6+KWy4EnCD3/dVROhmpOu1QxgKUqONPXmyhZoTRyRjXHipXtUewpH4hT9ago/ GeyLLzm6Om3AUkMZV65blf2SpsVmAa9sI2gAiPrAIiyT1SI55gMytkIznRPL2wle31+l WoeQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701710583; x=1702315383; 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=IMTdqm5zTqzrJY530vTWepDMpb2IhVN8gCn/w9vuFws=; b=ujx+OmpWUb6y1EVZAg4i1ZVEhX+thfAfiFLfcg6i09dX1ejLMc1jscALcCRL77u2Zh 3WMgegF0bhhlTgfGcGLfNstZJYabwAjo+KCgq1Q0E9Pf7InN/CGgv6xrqR0plr3T1/A8 B1pASHeCaS6SkufBkzJNIuTEVx2KkBUvLTFXNmQ7UFnmmJ1FkHd1QYW/QCzaqdk+hSLw Jdr1g9afccUIm0XebqpKsUz9xr9yAuxaiYtQrv8m9LtpYRYLssGhJmxQp39uzFKKWGs1 U1j0LVhVGtGskpZY3i/oT3skFKcXx3EoLjiJMbQwh5fvnn3HfwrjlgYocAZn86ncqGoE 6mPA== X-Gm-Message-State: AOJu0YyHRDsMozO55JvoPZyPyZaigh6yGwEQteiiufAbBy8bXCJuD/pL BVgKftQmRjgNamq2nytG/SrSZSQj4uUL X-Google-Smtp-Source: AGHT+IH0puCD9cgeSgd8Wj1uts99I485HDVLfKGlWnVQyNxMxJXZjXmxIDHJ17obUssocToHIAjTAS2ZClk9 X-Received: from kyletso-p620lin01.ntc.corp.google.com ([2401:fa00:fc:202:ac51:a57:5e72:a957]) (user=kyletso job=sendgmr) by 2002:a25:d4cc:0:b0:db9:772b:1020 with SMTP id m195-20020a25d4cc000000b00db9772b1020mr41355ybf.5.1701710583151; Mon, 04 Dec 2023 09:23:03 -0800 (PST) Date: Tue, 5 Dec 2023 01:22:47 +0800 In-Reply-To: <20231204172247.1087152-1-kyletso@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20231204172247.1087152-1-kyletso@google.com> X-Mailer: git-send-email 2.43.0.rc2.451.g8631bc7472-goog Message-ID: <20231204172247.1087152-3-kyletso@google.com> Subject: [PATCH v4 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 --- v3 -> v4 - no change drivers/usb/typec/tcpm/tcpm.c | 389 ++++++++++++++++++++++++++-------- 1 file changed, 303 insertions(+), 86 deletions(-) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 50cbc52386b3..9c8d7317f8b9 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -296,6 +296,15 @@ 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; @@ -397,12 +406,14 @@ 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; @@ -412,6 +423,7 @@ 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]; @@ -6045,12 +6057,114 @@ 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) @@ -6064,58 +6178,63 @@ 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: @@ -6124,12 +6243,11 @@ 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_properties(struct tcpm_port *port, struct fwnode_handle *fwnode) { const char *opmode_str; + u32 frs_current; int ret; - u32 mw, frs_current; if (!fwnode) return -EINVAL; @@ -6149,28 +6267,10 @@ 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; @@ -6180,43 +6280,156 @@ static int tcpm_fw_get_caps(struct tcpm_port *port, port->src_rp = tcpm_pwr_opmode_to_rp(ret); } - if (port->port_type == TYPEC_PORT_SRC) - return 0; + /* 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 && frs_current <= FRS_5V_3A) + port->new_source_frs_current = frs_current; + } -sink: - port->self_powered = fwnode_property_read_bool(fwnode, "self-powered"); + return 0; +} + +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; + u32 *src_pdo, *snk_pdo; + u32 uw; + int ret = 0, i; if (!port->pd_supported) return 0; - /* Get sink pdos */ - ret = fwnode_property_count_u32(fwnode, "sink-pdos"); - if (ret <= 0) - return -EINVAL; + /* 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++; - 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 (!port->pd_count) { + ret = -ENODATA; + goto put_capabilities; + } + } - if (fwnode_property_read_u32(fwnode, "op-sink-microwatt", &mw) < 0) - return -EINVAL; - port->operating_snk_mw = mw / 1000; + port->pds = devm_kcalloc(port->dev, port->pd_count, sizeof(struct usb_power_delivery *), + GFP_KERNEL); + if (!port->pds) { + ret = -ENOMEM; + goto put_capabilities; + } - /* 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) - port->new_source_frs_current = frs_current; + 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) { @@ -6581,13 +6794,18 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) init_completion(&port->pps_complete); tcpm_debugfs_init(port); + err = tcpm_fw_get_properties(port, tcpc->fwnode); + if (err < 0) + goto out_destroy_wq; 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; @@ -6596,7 +6814,6 @@ 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) @@ -6615,7 +6832,7 @@ 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)) {