From patchwork Tue Jun 1 12:31:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 452984 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C709C47092 for ; Tue, 1 Jun 2021 12:32:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 709B1613B9 for ; Tue, 1 Jun 2021 12:32:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233944AbhFAMdz (ORCPT ); Tue, 1 Jun 2021 08:33:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233925AbhFAMdu (ORCPT ); Tue, 1 Jun 2021 08:33:50 -0400 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 945B5C0613CE for ; Tue, 1 Jun 2021 05:32:06 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id v184-20020a257ac10000b02904f84a5c5297so16934267ybc.16 for ; Tue, 01 Jun 2021 05:32:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=v0JmXkpPcwyLfGDXD/UYS9VSnqvDE/X6cwHvlaKvCDo=; b=ge7A6t9VrjoPBf2yczWshpuNpcJZv+LVPUatnZpS2YHPIoaKCjHvFlupHnnnhYfJAR XvQM/yh73IVnhEcR2oWqVAVDSrjr/74D749Zvw/1LIcroeerCuzqxiZa/x9SACanH4RN KPzu+5NiiqQ1f3r8YOM428JJaiFwsygOY9aXhYWJGPEe+LatsxZrxr+KSjXGL/51NulJ 5Zx6IzzPlFya6Yag8zcGLBVKK1A+dXElnGCr3HgW8dBx6RNgUAzd8DqG7IWbW8fx7ADp 5Oglr2Vhh4aWvCNg8OTB0vtNKlOIKgKMAqlgeGNkb1Zvkxlg6XO7yrB5eOgjgQOO1rmJ SjDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=v0JmXkpPcwyLfGDXD/UYS9VSnqvDE/X6cwHvlaKvCDo=; b=cW+7rqDrJ9WyXFrp9vBItm7KUPKGi9YoNgcJNcFnemIQtT4Ffm3wnqJUSbn4yhre8h btKFafH/+7g88pkdIHI44RLLH4GXUYXzWwnyVkBZrSYArfwSnleBvcaq1q8YU9P48yud RVs8AGgJwlAe5lN0waLmlh496E2db3BF1TyX+r/oxN39TthXff1yJSLAJ0icN1B2xzAT W+hQNEyBGf6Nwg3KPKlgtcXDsUNHryInbrxbbU0yhZIdTJV9G8qP4bEQQ1fz2RrYmwla B/hPLylk4MW3Fp8F5i8Hxnwm24K/AP9KTLtMWG7xk/9LMDlRYDU+NODY5cyWPcO/6/yR bKlg== X-Gm-Message-State: AOAM533ovrGBtjU2cnmdjJu1xpxcoG5TOVLo5WDVfKD3MVWnNjv65LcT IIeHqGM21XnXiOoK4k2dRArRKe2sG3lW X-Google-Smtp-Source: ABdhPJw70HX3AuFEpGy9CEQ/cqaj7ZnCC+oIoMK07F8aUbNTKbvzWpdIYlW135qYOIx/LmXcSr0Q2YradCx2 X-Received: from kyletso.ntc.corp.google.com ([2401:fa00:fc:202:c9e8:9a17:9774:bcd3]) (user=kyletso job=sendgmr) by 2002:a05:6902:100c:: with SMTP id w12mr37901747ybt.122.1622550725722; Tue, 01 Jun 2021 05:32:05 -0700 (PDT) Date: Tue, 1 Jun 2021 20:31:48 +0800 In-Reply-To: <20210601123151.3441914-1-kyletso@google.com> Message-Id: <20210601123151.3441914-2-kyletso@google.com> Mime-Version: 1.0 References: <20210601123151.3441914-1-kyletso@google.com> X-Mailer: git-send-email 2.32.0.rc0.204.g9fa02ecfa5-goog Subject: [PATCH v3 1/4] usb: typec: tcpm: Correct the responses in SVDM Version 2.0 DFP From: Kyle Tso To: linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org, robh+dt@kernel.org Cc: badhri@google.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Kyle Tso Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In USB PD Spec Rev 3.1 Ver 1.0, section "6.12.5 Applicability of Structured VDM Commands", DFP is allowed and recommended to respond to Discovery Identity with ACK. And in section "6.4.4.2.5.1 Commands other than Attention", NAK should be returned only when receiving Messages with invalid fields, Messages in wrong situation, or unrecognize Messages. Still keep the original design for SVDM Version 1.0 for backward compatibilities. Fixes: 193a68011fdc ("staging: typec: tcpm: Respond to Discover Identity commands") Signed-off-by: Kyle Tso Acked-by: Heikki Krogerus --- changes since v2: - no change drivers/usb/typec/tcpm/tcpm.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 0db685d5d9c0..617f48cdd90c 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -1575,19 +1575,25 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, if (PD_VDO_VID(p[0]) != USB_SID_PD) break; - if (PD_VDO_SVDM_VER(p[0]) < svdm_version) + if (PD_VDO_SVDM_VER(p[0]) < svdm_version) { typec_partner_set_svdm_version(port->partner, PD_VDO_SVDM_VER(p[0])); + svdm_version = PD_VDO_SVDM_VER(p[0]); + } tcpm_ams_start(port, DISCOVER_IDENTITY); - /* 6.4.4.3.1: Only respond as UFP (device) */ - if (port->data_role == TYPEC_DEVICE && + /* + * PD2.0 Spec 6.10.3: respond with NAK as DFP (data host) + * PD3.1 Spec 6.4.4.2.5.1: respond with NAK if "invalid field" or + * "wrong configuation" or "Unrecognized" + */ + if ((port->data_role == TYPEC_DEVICE || svdm_version >= SVDM_VER_2_0) && port->nr_snk_vdo) { /* * Product Type DFP and Connector Type are not defined in SVDM * version 1.0 and shall be set to zero. */ - if (typec_get_negotiated_svdm_version(typec) < SVDM_VER_2_0) + if (svdm_version < SVDM_VER_2_0) response[1] = port->snk_vdo[0] & ~IDH_DFP_MASK & ~IDH_CONN_MASK; else From patchwork Tue Jun 1 12:31:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 451729 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2497DC4708F for ; Tue, 1 Jun 2021 12:32:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 033A6613CB for ; Tue, 1 Jun 2021 12:32:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233964AbhFAMd5 (ORCPT ); Tue, 1 Jun 2021 08:33:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233864AbhFAMdv (ORCPT ); Tue, 1 Jun 2021 08:33:51 -0400 Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07C27C06174A for ; Tue, 1 Jun 2021 05:32:10 -0700 (PDT) Received: by mail-pf1-x449.google.com with SMTP id y11-20020aa79e0b0000b02902e9e0e19fdcso69325pfq.14 for ; Tue, 01 Jun 2021 05:32:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=TIrhdCc52rc8xIChZbfsdMmrnlqSYB0L7zocAcYSf8g=; b=Z2JJbKOInWk3+LebbLnIcnl9YSUIAwmuFET3biLitBcvHxS2KU0C95zR57/BaH5DaD phDzNwkuM/niYUAPJgkU8PDTQb+toOLz9+bNFqxgTwadijQba8XKYCqYin6kNuOT4eNP scs3/vlJK84k86Vs8vQgKz9/S8ilQfGVNqWPUuVLv0C3niZ8OgRBxYw1273kvcVD3l6T IBKpzkL7HR6t2F6LmeizUMMk4fVv/mADkpJqKuRMp6TmuX/Fvr1DsJ7jTisN0F4g4uOt nhxQZkWnTZDblEB4oVGQ10KIAJsbctsN1dKljGNrAO6oLdIrT00P/MJg8w4XI8U1Sm77 KREg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=TIrhdCc52rc8xIChZbfsdMmrnlqSYB0L7zocAcYSf8g=; b=RDWAS2iS8HkHFHzzmvcZyeUWkw3u/z1H8Cbcbia3Qzdh6RgKrnZzThkSd6Ic4e83X2 nT6V38rjJF5pYB6dQ2udpK8EC2Tqn+/IRTMmc1eyrOHy7W2HkOyRJ+8Lxv+T0Xy/wowb Obqc7V+bLR2OwDPPudlDl24MqjKvdQV4lwhVk2xacIsEEuYQUfKoyKAljEfaCpeFH6Vd m/sGskupBlVmdRqrAemnWUdECdPMUYT3PI6OsHfNcHPTd5cfnLxm26t/+bSZVHP3Ds1b /Z6ZQELyHtMDSc7g+qGOD8UsARx8dw8uKdPGEgittWEuruR8Wh2PBbUeY1bbj0JfNJAd nuGA== X-Gm-Message-State: AOAM531FWuUQ/ciMJJO3K1yUVEOyzVK+N9sKglghoJSmpQxArFAEizKx 968pIN/HImPN4F+41EW3E9WbWlExWg2P X-Google-Smtp-Source: ABdhPJxlAklxzfnTINsiLmJn3Ph2Na4Gpui4YC0qxqbm3xTguS1F20aoPin/rgz29Dln9oKdkMD0IEgkl9/x X-Received: from kyletso.ntc.corp.google.com ([2401:fa00:fc:202:c9e8:9a17:9774:bcd3]) (user=kyletso job=sendgmr) by 2002:a17:90a:4d01:: with SMTP id c1mr4671785pjg.113.1622550729511; Tue, 01 Jun 2021 05:32:09 -0700 (PDT) Date: Tue, 1 Jun 2021 20:31:49 +0800 In-Reply-To: <20210601123151.3441914-1-kyletso@google.com> Message-Id: <20210601123151.3441914-3-kyletso@google.com> Mime-Version: 1.0 References: <20210601123151.3441914-1-kyletso@google.com> X-Mailer: git-send-email 2.32.0.rc0.204.g9fa02ecfa5-goog Subject: [PATCH v3 2/4] dt-bindings: connector: Add PD rev 2.0 VDO definition From: Kyle Tso To: linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org, robh+dt@kernel.org Cc: badhri@google.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Kyle Tso Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add the VDO definition for USB PD rev 2.0 in the bindings and define a new property snk-vdos-v1 containing legacy VDOs as the responses to the port partner which only supports PD rev 2.0. Signed-off-by: Kyle Tso Reviewed-by: Rob Herring --- changes since v2: - no change .../bindings/connector/usb-connector.yaml | 15 ++++ include/dt-bindings/usb/pd.h | 69 ++++++++++++++++++- 2 files changed, 81 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml index 32509b98142e..92b49bc37939 100644 --- a/Documentation/devicetree/bindings/connector/usb-connector.yaml +++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml @@ -149,6 +149,17 @@ properties: maxItems: 6 $ref: /schemas/types.yaml#/definitions/uint32-array + sink-vdos-v1: + description: An array of u32 with each entry, a Vendor Defined Message Object (VDO), + providing additional information corresponding to the product, the detailed bit + definitions and the order of each VDO can be found in + "USB Power Delivery Specification Revision 2.0, Version 1.3" chapter 6.4.4.3.1 Discover + Identity. User can specify the VDO array via VDO_IDH/_CERT/_PRODUCT/_CABLE/_AMA defined in + dt-bindings/usb/pd.h. + minItems: 3 + 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 @@ -207,6 +218,10 @@ properties: SNK_READY for non-pd link. type: boolean +dependencies: + sink-vdos-v1: [ 'sink-vdos' ] + sink-vdos: [ 'sink-vdos-v1' ] + required: - compatible diff --git a/include/dt-bindings/usb/pd.h b/include/dt-bindings/usb/pd.h index fef3ef65967f..9e47f9673405 100644 --- a/include/dt-bindings/usb/pd.h +++ b/include/dt-bindings/usb/pd.h @@ -106,6 +106,10 @@ * <20:16> :: Reserved, Shall be set to zero * <15:0> :: USB-IF assigned VID for this cable vendor */ + +/* PD Rev2.0 definition */ +#define IDH_PTYPE_UNDEF 0 + /* SOP Product Type (UFP) */ #define IDH_PTYPE_NOT_UFP 0 #define IDH_PTYPE_HUB 1 @@ -228,7 +232,25 @@ | ((pnum) & 0x1f)) /* - * Passive Cable VDO + * Cable VDO (for both Passive and Active Cable VDO in PD Rev2.0) + * --------- + * <31:28> :: Cable HW version + * <27:24> :: Cable FW version + * <23:20> :: Reserved, Shall be set to zero + * <19:18> :: type-C to Type-A/B/C/Captive (00b == A, 01 == B, 10 == C, 11 == Captive) + * <17> :: Reserved, Shall be set to zero + * <16:13> :: cable latency (0001 == <10ns(~1m length)) + * <12:11> :: cable termination type (11b == both ends active VCONN req) + * <10> :: SSTX1 Directionality support (0b == fixed, 1b == cfgable) + * <9> :: SSTX2 Directionality support + * <8> :: SSRX1 Directionality support + * <7> :: SSRX2 Directionality support + * <6:5> :: Vbus current handling capability (01b == 3A, 10b == 5A) + * <4> :: Vbus through cable (0b == no, 1b == yes) + * <3> :: SOP" controller present? (0b == no, 1b == yes) + * <2:0> :: USB SS Signaling support + * + * Passive Cable VDO (PD Rev3.0+) * --------- * <31:28> :: Cable HW version * <27:24> :: Cable FW version @@ -244,7 +266,7 @@ * <4:3> :: Reserved, Shall be set to zero * <2:0> :: USB highest speed * - * Active Cable VDO 1 + * Active Cable VDO 1 (PD Rev3.0+) * --------- * <31:28> :: Cable HW version * <27:24> :: Cable FW version @@ -266,7 +288,9 @@ #define CABLE_VDO_VER1_0 0 #define CABLE_VDO_VER1_3 3 -/* Connector Type */ +/* Connector Type (_ATYPE and _BTYPE are for PD Rev2.0 only) */ +#define CABLE_ATYPE 0 +#define CABLE_BTYPE 1 #define CABLE_CTYPE 2 #define CABLE_CAPTIVE 3 @@ -303,12 +327,22 @@ #define CABLE_CURR_3A 1 #define CABLE_CURR_5A 2 +/* USB SuperSpeed Signaling Support (PD Rev2.0) */ +#define CABLE_USBSS_U2_ONLY 0 +#define CABLE_USBSS_U31_GEN1 1 +#define CABLE_USBSS_U31_GEN2 2 + /* USB Highest Speed */ #define CABLE_USB2_ONLY 0 #define CABLE_USB32_GEN1 1 #define CABLE_USB32_4_GEN2 2 #define CABLE_USB4_GEN3 3 +#define VDO_CABLE(hw, fw, cbl, lat, term, tx1d, tx2d, rx1d, rx2d, cur, vps, sopp, usbss) \ + (((hw) & 0x7) << 28 | ((fw) & 0x7) << 24 | ((cbl) & 0x3) << 18 \ + | ((lat) & 0x7) << 13 | ((term) & 0x3) << 11 | (tx1d) << 10 \ + | (tx2d) << 9 | (rx1d) << 8 | (rx2d) << 7 | ((cur) & 0x3) << 5 \ + | (vps) << 4 | (sopp) << 3 | ((usbss) & 0x7)) #define VDO_PCABLE(hw, fw, ver, conn, lat, term, vbm, cur, spd) \ (((hw) & 0xf) << 28 | ((fw) & 0xf) << 24 | ((ver) & 0x7) << 21 \ | ((conn) & 0x3) << 18 | ((lat) & 0xf) << 13 | ((term) & 0x3) << 11 \ @@ -373,6 +407,35 @@ | ((hops) & 0x3) << 6 | (u2) << 5 | (u32) << 4 | (lane) << 3 \ | (iso) << 2 | (gen)) +/* + * AMA VDO (PD Rev2.0) + * --------- + * <31:28> :: Cable HW version + * <27:24> :: Cable FW version + * <23:12> :: Reserved, Shall be set to zero + * <11> :: SSTX1 Directionality support (0b == fixed, 1b == cfgable) + * <10> :: SSTX2 Directionality support + * <9> :: SSRX1 Directionality support + * <8> :: SSRX2 Directionality support + * <7:5> :: Vconn power + * <4> :: Vconn power required + * <3> :: Vbus power required + * <2:0> :: USB SS Signaling support + */ +#define VDO_AMA(hw, fw, tx1d, tx2d, rx1d, rx2d, vcpwr, vcr, vbr, usbss) \ + (((hw) & 0x7) << 28 | ((fw) & 0x7) << 24 \ + | (tx1d) << 11 | (tx2d) << 10 | (rx1d) << 9 | (rx2d) << 8 \ + | ((vcpwr) & 0x7) << 5 | (vcr) << 4 | (vbr) << 3 \ + | ((usbss) & 0x7)) + +#define PD_VDO_AMA_VCONN_REQ(vdo) (((vdo) >> 4) & 1) +#define PD_VDO_AMA_VBUS_REQ(vdo) (((vdo) >> 3) & 1) + +#define AMA_USBSS_U2_ONLY 0 +#define AMA_USBSS_U31_GEN1 1 +#define AMA_USBSS_U31_GEN2 2 +#define AMA_USBSS_BBONLY 3 + /* * VPD VDO * --------- From patchwork Tue Jun 1 12:31:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 452983 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8DFDC47080 for ; Tue, 1 Jun 2021 12:32:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B49E613D6 for ; Tue, 1 Jun 2021 12:32:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233996AbhFAMd7 (ORCPT ); Tue, 1 Jun 2021 08:33:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55734 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233914AbhFAMdz (ORCPT ); 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d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=N3k4r2devy507FQlh/IHXNwgibHstn5wOW3VSoEKkfs=; b=E8Z9srwm/3xJfmsAgWd/L5kJ/sjvxje+5moc7cpJNHjdY29+/BE+e9XLonE2sVlYH+ UU6jCAFPT2geQtxmG2jo//g4VfgyuOhr8vdCNB+gLsY/cFgorvjnrWi8Pp8ca4j1ovw2 2zeZaBayu1QqP2AgNgrb3aZ+884cqG42Z1VqH7BwysHSE0gI/LGCj8pM6WN4Gg7zsq2l 1CHUTGv0Nf8+jOYX/VokyEcVoxmTkh3sp4TK4oZosA4WteTgrwfqEfXRf87EmTytuNZ5 +dtV+msTlsnncFAdFEmRv3P3G9evdR6RMsuHRiGwlH7HM6J0sPnfeTDimU6r+ugumLof 0ZKw== X-Gm-Message-State: AOAM533Wyzv8pYhxloR2mAKMINGatihpUfmUaYzT2cosxfYR1oUZ6oTx w3+y32GYOfwgZHb+GE2U9uFHn/IXJ7Wk X-Google-Smtp-Source: ABdhPJzAZexrTW+OtZij5NsHi7IgsAw9VWmgdvbjjD4PyPgxMnDVhBL84gO6nKM1GJHVxzPrymQIGYdgnnxo X-Received: from kyletso.ntc.corp.google.com ([2401:fa00:fc:202:c9e8:9a17:9774:bcd3]) (user=kyletso job=sendgmr) by 2002:a05:6214:1788:: with SMTP id ct8mr7138841qvb.0.1622550732802; Tue, 01 Jun 2021 05:32:12 -0700 (PDT) Date: Tue, 1 Jun 2021 20:31:50 +0800 In-Reply-To: <20210601123151.3441914-1-kyletso@google.com> Message-Id: <20210601123151.3441914-4-kyletso@google.com> Mime-Version: 1.0 References: <20210601123151.3441914-1-kyletso@google.com> X-Mailer: git-send-email 2.32.0.rc0.204.g9fa02ecfa5-goog Subject: [PATCH v3 3/4] usb: typec: tcpm: Introduce snk_vdo_v1 for SVDM version 1.0 From: Kyle Tso To: linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org, robh+dt@kernel.org Cc: badhri@google.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Kyle Tso Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The ID Header VDO and Product VDOs defined in USB PD Spec rev 2.0 and rev 3.1 are quite different. Add an additional array snk_vdo_v1 and send it as the response to the port partner if it only supports SVDM version 1.0. Signed-off-by: Kyle Tso Acked-by: Heikki Krogerus --- changes since v2: - no change drivers/usb/typec/tcpm/tcpm.c | 40 ++++++++++++++++++++++++----------- 1 file changed, 28 insertions(+), 12 deletions(-) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 617f48cdd90c..ebe490949fa0 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -401,6 +401,8 @@ struct tcpm_port { unsigned int nr_src_pdo; u32 snk_pdo[PDO_MAX_OBJECTS]; unsigned int nr_snk_pdo; + u32 snk_vdo_v1[VDO_MAX_OBJECTS]; + unsigned int nr_snk_vdo_v1; u32 snk_vdo[VDO_MAX_OBJECTS]; unsigned int nr_snk_vdo; @@ -1589,18 +1591,16 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, */ if ((port->data_role == TYPEC_DEVICE || svdm_version >= SVDM_VER_2_0) && port->nr_snk_vdo) { - /* - * Product Type DFP and Connector Type are not defined in SVDM - * version 1.0 and shall be set to zero. - */ - if (svdm_version < SVDM_VER_2_0) - response[1] = port->snk_vdo[0] & ~IDH_DFP_MASK - & ~IDH_CONN_MASK; - else - response[1] = port->snk_vdo[0]; - for (i = 1; i < port->nr_snk_vdo; i++) - response[i + 1] = port->snk_vdo[i]; - rlen = port->nr_snk_vdo + 1; + if (svdm_version < SVDM_VER_2_0) { + for (i = 0; i < port->nr_snk_vdo_v1; i++) + response[i + 1] = port->snk_vdo_v1[i]; + rlen = port->nr_snk_vdo_v1 + 1; + + } else { + for (i = 0; i < port->nr_snk_vdo; i++) + response[i + 1] = port->snk_vdo[i]; + rlen = port->nr_snk_vdo + 1; + } } break; case CMD_DISCOVER_SVID: @@ -5969,6 +5969,22 @@ static int tcpm_fw_get_caps(struct tcpm_port *port, return ret; } + /* If sink-vdos is found, sink-vdos-v1 is expected for backward compatibility. */ + if (port->nr_snk_vdo) { + ret = fwnode_property_count_u32(fwnode, "sink-vdos-v1"); + if (ret < 0) + return ret; + else if (ret == 0) + return -ENODATA; + + port->nr_snk_vdo_v1 = min(ret, VDO_MAX_OBJECTS); + ret = fwnode_property_read_u32_array(fwnode, "sink-vdos-v1", + port->snk_vdo_v1, + port->nr_snk_vdo_v1); + if (ret < 0) + return ret; + } + return 0; } From patchwork Tue Jun 1 12:31:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 451728 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 150E7C4708F for ; Tue, 1 Jun 2021 12:32:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EB2B9613B9 for ; Tue, 1 Jun 2021 12:32:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233862AbhFAMeI (ORCPT ); Tue, 1 Jun 2021 08:34:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233983AbhFAMd7 (ORCPT ); Tue, 1 Jun 2021 08:33:59 -0400 Received: from mail-pl1-x649.google.com (mail-pl1-x649.google.com [IPv6:2607:f8b0:4864:20::649]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2142C061574 for ; Tue, 1 Jun 2021 05:32:16 -0700 (PDT) Received: by mail-pl1-x649.google.com with SMTP id 31-20020a1709020022b02900eeddd708c8so4484515pla.11 for ; Tue, 01 Jun 2021 05:32:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=JctqiyfH0XVicZkZGLx/v4l2VDYTxFT6JonHjlOUxnA=; b=iKgRwDxKFYOf43YFz+J13Vd9f53h3y8It79xAgBtsJ+r7a6Kfh3unBAXGmR3yA/LJO sjYeH9LKaVRJcoaI8VfpyukIQACtEPHO7yKRvwelwBTHnUe4aI7AoedLeG0rsTnqDunI vwcNKNaTRBPgD6QHvkO58Sd77wyRpGx8aAiNh5X+K43hg1WpW/m5CBREZu0N+kqZREZj Yid4SIVbvFvAOYNHvpi8ARN3PndW3Q+6qVnSJ6Vd+fgQ5erTz5EMabepq+UboSi3pDDJ hKcQYjgUPct4N+Fm3J1Vwau6O4LqFPcOWJxsGexH2crGiLPer01vzFEl8lrFiDgU2GKF PFjQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=JctqiyfH0XVicZkZGLx/v4l2VDYTxFT6JonHjlOUxnA=; b=S0A5pFNLGdhFxv6R5Lc1MgRHM71kVKga6b/A95hn097+p7AD2yGw6XvSoyiAjttwmu NH7tGS3dnAX0FqRKk5liRHkanM9U3GvhCGagA1VjIEVlSr7mBXaTEU5Ui+7hME5720RU rvGFOz2A5t6xyoPeLmYOyITK2z9Pt+v00IZu0WI2Rk1dXTF4cCf0Vk6yW895UUsqmhvT IbLFby7K6dm0WXTW81RNTWIQwi9ohpv8xZ2lWv3BgLIl+JHyjI4fDlnKVE6wOh5Ulu5D AHph2pOQc3GWC2rsFFW2NTyoplrucB4mHjnXGgMBXevcijJiMJMOm2nTXOe4oM8Iu7bU hSow== X-Gm-Message-State: AOAM530XjhdQzKOkkIgRh8mMc9IyA1nOy8QNMw7KrXnf36dRlZPYYi2B pVbzTygW2ljPymeTSw/SEAguRhorsBm4 X-Google-Smtp-Source: ABdhPJzSHVTD5EqPx2Ya73euD4lw0KuKiVoKG9/k0unvlAhODYfOVEOZC2AuYw+ElX/k8F9CwnWVge3uTsMo X-Received: from kyletso.ntc.corp.google.com ([2401:fa00:fc:202:c9e8:9a17:9774:bcd3]) (user=kyletso job=sendgmr) by 2002:a17:902:7401:b029:102:34f7:48f5 with SMTP id g1-20020a1709027401b029010234f748f5mr16020870pll.47.1622550736436; Tue, 01 Jun 2021 05:32:16 -0700 (PDT) Date: Tue, 1 Jun 2021 20:31:51 +0800 In-Reply-To: <20210601123151.3441914-1-kyletso@google.com> Message-Id: <20210601123151.3441914-5-kyletso@google.com> Mime-Version: 1.0 References: <20210601123151.3441914-1-kyletso@google.com> X-Mailer: git-send-email 2.32.0.rc0.204.g9fa02ecfa5-goog Subject: [PATCH v3 4/4] usb: typec: tcpm: Fix misuses of AMS invocation From: Kyle Tso To: linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org, robh+dt@kernel.org Cc: badhri@google.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Kyle Tso Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org tcpm_ams_start is used to initiate an AMS as well as checking Collision Avoidance conditions but not for flagging passive AMS (initiated by the port partner). Fix the misuses of tcpm_ams_start in tcpm_pd_svdm. ATTENTION doesn't need responses so the AMS flag is not needed here. Fixes: 0bc3ee92880d ("usb: typec: tcpm: Properly interrupt VDM AMS") Signed-off-by: Kyle Tso Acked-by: Heikki Krogerus --- drivers/usb/typec/tcpm/tcpm.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index ebe490949fa0..c4b02a6ca3d7 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -1583,7 +1583,7 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, svdm_version = PD_VDO_SVDM_VER(p[0]); } - tcpm_ams_start(port, DISCOVER_IDENTITY); + port->ams = DISCOVER_IDENTITY; /* * PD2.0 Spec 6.10.3: respond with NAK as DFP (data host) * PD3.1 Spec 6.4.4.2.5.1: respond with NAK if "invalid field" or @@ -1604,19 +1604,18 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, } break; case CMD_DISCOVER_SVID: - tcpm_ams_start(port, DISCOVER_SVIDS); + port->ams = DISCOVER_SVIDS; break; case CMD_DISCOVER_MODES: - tcpm_ams_start(port, DISCOVER_MODES); + port->ams = DISCOVER_MODES; break; case CMD_ENTER_MODE: - tcpm_ams_start(port, DFP_TO_UFP_ENTER_MODE); + port->ams = DFP_TO_UFP_ENTER_MODE; break; case CMD_EXIT_MODE: - tcpm_ams_start(port, DFP_TO_UFP_EXIT_MODE); + port->ams = DFP_TO_UFP_EXIT_MODE; break; case CMD_ATTENTION: - tcpm_ams_start(port, ATTENTION); /* Attention command does not have response */ *adev_action = ADEV_ATTENTION; return 0;