From patchwork Wed Jun 15 17:20:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Prashant Malani X-Patchwork-Id: 12882788 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D5821C433EF for ; Wed, 15 Jun 2022 17:22:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0F81D1126EC; Wed, 15 Jun 2022 17:22:53 +0000 (UTC) Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by gabe.freedesktop.org (Postfix) with ESMTPS id D777C1126FB for ; Wed, 15 Jun 2022 17:22:51 +0000 (UTC) Received: by mail-pj1-x1030.google.com with SMTP id e24so11866278pjt.0 for ; Wed, 15 Jun 2022 10:22:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2W8ZiDCOiI2bSKlNFhYrholIlbWHA9JNdcBup3bW7Yo=; b=Hpp3AncTQoSOnV7UdHW2TvyOhTzBZiIH0LBgD/t5tp0ITB9U3aOqAo7WF6v6e8UoHc fy+xPhaHHN0pBCYm3iDpjYgr3ApnSfCrnFnteSX1XQQw2d7eOXGWyoYf0VitILM0XChL 19KtVerTsiYctQ0HQr3Ozthgj4KmrtiAJ0ptw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2W8ZiDCOiI2bSKlNFhYrholIlbWHA9JNdcBup3bW7Yo=; b=apLhb3Ti5DxGtE9CQHEwtSmRsOJlqcK95zRSSSUQC/nXYxsaVK2xDBoI6NmMQnFzzr ikYqi6W5ng/4y78JI0vxwXvKWkfbjSJn9EZi3jU0LGgdiT9+vsB7B06nBkmVD0+G3IoY vXnDN8u2fwrTrU9uqy0dmZ6Cz/h2Qvqt7kTMayXupbuLQvfwgU+UJrpDeMlqHisDQKSl WNkcDJi+40ROpk+ak3t5HtZC7EestOZG6PU6wI+NpXlAResG4eAs622hWnHYHve717yS cB2Nuh7IDtUzlLtSc0RpJR4htdkSssu99QhSpLpLT0gvLGEC5MP6044/5w6L8leB0Gdi tbPA== X-Gm-Message-State: AJIora/zebB6TsDI2iqbG9a3k41HgeJ0qkpaKhWOIbLud7HG6H+xlIws nyOjOZrfyCtZI8CuF8bw4aXpaQ== X-Google-Smtp-Source: AGRyM1tVcBDAyxkz3btNQE+y26IairXVXjxbk4noExnU1pNBJVc+tpf6h4bkXr5F9i8LHqZ7aBd3jg== X-Received: by 2002:a17:90b:380b:b0:1e6:67f6:c5b4 with SMTP id mq11-20020a17090b380b00b001e667f6c5b4mr11445610pjb.48.1655313771456; Wed, 15 Jun 2022 10:22:51 -0700 (PDT) Received: from pmalani.c.googlers.com.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id d10-20020aa7814a000000b005103abd2fdbsm10147433pfn.206.2022.06.15.10.22.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 10:22:51 -0700 (PDT) From: Prashant Malani To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v4 1/7] usb: typec: mux: Allow muxes to specify mode-switch Date: Wed, 15 Jun 2022 17:20:17 +0000 Message-Id: <20220615172129.1314056-2-pmalani@chromium.org> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog In-Reply-To: <20220615172129.1314056-1-pmalani@chromium.org> References: <20220615172129.1314056-1-pmalani@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: heikki.krogerus@linux.intel.com, Andrzej Hajda , Neil Armstrong , David Airlie , "open list:DRM DRIVERS" , Laurent Pinchart , Krzysztof Kozlowski , Sam Ravnborg , Jernej Skrabec , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Thomas Zimmermann , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Jonas Karlman , swboyd@chromium.org, Pin-Yen Lin , Rob Herring , Maxime Ripard , Hsin-Yi Wang , Xin Ji , AngeloGioacchino Del Regno , Greg Kroah-Hartman , Robert Foss , Prashant Malani , =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Loosen the typec_mux_match() requirements so that searches where an alt mode is not specified, but the target mux device lists the "mode-switch" property, return a success. This is helpful in Type C port drivers which would like to get a pointer to the mux switch associated with a Type C port, but don't want to specify a particular alt mode. Signed-off-by: Prashant Malani Reviewed-by: Heikki Krogerus Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado --- Changes since v3: - No changes. Changes since v2: - Included Reviewed-by and Tested-by tags from v2. Changes since v1: - No changes. drivers/usb/typec/mux.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c index fd55c2c516a5..464330776cd6 100644 --- a/drivers/usb/typec/mux.c +++ b/drivers/usb/typec/mux.c @@ -281,9 +281,13 @@ static void *typec_mux_match(struct fwnode_handle *fwnode, const char *id, if (match) goto find_mux; - /* Accessory Mode muxes */ if (!desc) { - match = fwnode_property_present(fwnode, "accessory"); + /* + * Accessory Mode muxes & muxes which explicitly specify + * the required identifier can avoid SVID matching. + */ + match = fwnode_property_present(fwnode, "accessory") || + fwnode_property_present(fwnode, id); if (match) goto find_mux; return NULL; From patchwork Wed Jun 15 17:20:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Prashant Malani X-Patchwork-Id: 12882792 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0B9F4C43334 for ; Wed, 15 Jun 2022 17:24:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4340910E2EB; Wed, 15 Jun 2022 17:24:12 +0000 (UTC) Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8436A10E2EB for ; Wed, 15 Jun 2022 17:24:11 +0000 (UTC) Received: by mail-pj1-x1030.google.com with SMTP id q12-20020a17090a304c00b001e2d4fb0eb4so2748276pjl.4 for ; Wed, 15 Jun 2022 10:24:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=fd+38h/ZuXO4QEJ1wGS9J1AZQKshnBpf5+thNgq+mvo=; b=fOBgTZqs3hQWvC0l3F/p+i0TivYNq1gtt4eW8E5d/3EHeKhewOjTxbqwIFFM0Lbu/+ GerPeMoFwy6Z4NemLuydPC6RvG7vpFvFGMyg+AVSadlJ5a+5TyQ5+Fa6xMfwhJ89GRj5 61ppCfkk/HUEn6FzNFZYKJ5NkQdUVDIEWg3jE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fd+38h/ZuXO4QEJ1wGS9J1AZQKshnBpf5+thNgq+mvo=; b=N1ENHfzziZSv5M4GcqJ++13ldHwUIc3lgoZDjMrG6+95Xyb+j/dewgCi+nhgK0HG8g 59t98WA5g9wA9Glzns5/Td79Dc9eXk0BBV9NaP82SjBQ7wKfLIXN8ouTZdzxE61l4Dhf UvsetZLpxm2FUeQ1wVhlnBNXN4dnjp+XXfhOsWcfVd8XJOcjwrOhNPAIaiyYfpbDrNrr IFboOk4oCZXJ2pS6Xo35WAzLTZ7z2dYMjTQfjV2+tPHpNPt2qhNpteQv7KX9u22UGn1D OIT3BEbU9QPrE8lvMZUlMehS+kO2g4OPj5aPZrEGUYPz5OdVDMRjJmFkBVj0Pm+wjAJa Qevg== X-Gm-Message-State: AJIora9Q3YRHl2l/IJK/1J0eQIZVpw2MPlJqESrBIhompvyqJoZpb3/z VxKJtu2a0UAdWvPDJqNMs6qVyA== X-Google-Smtp-Source: AGRyM1u814zjEMHfZtf5sU7v86toFZpanB4vAxQLXrCLt1xth/wAXbRon/BiyEIZtPgjcFL0ZTmeDw== X-Received: by 2002:a17:902:ca0b:b0:167:4c4d:7320 with SMTP id w11-20020a170902ca0b00b001674c4d7320mr390478pld.113.1655313851115; Wed, 15 Jun 2022 10:24:11 -0700 (PDT) Received: from pmalani.c.googlers.com.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id d10-20020aa7814a000000b005103abd2fdbsm10147433pfn.206.2022.06.15.10.24.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 10:24:10 -0700 (PDT) From: Prashant Malani To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v4 2/7] usb: typec: mux: Add CONFIG guards for functions Date: Wed, 15 Jun 2022 17:20:18 +0000 Message-Id: <20220615172129.1314056-3-pmalani@chromium.org> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog In-Reply-To: <20220615172129.1314056-1-pmalani@chromium.org> References: <20220615172129.1314056-1-pmalani@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: heikki.krogerus@linux.intel.com, Andrzej Hajda , Neil Armstrong , David Airlie , "open list:DRM DRIVERS" , Laurent Pinchart , Krzysztof Kozlowski , Sam Ravnborg , kernel test robot , Jernej Skrabec , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Thomas Zimmermann , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Jonas Karlman , swboyd@chromium.org, Pin-Yen Lin , Rob Herring , Maxime Ripard , Hsin-Yi Wang , Xin Ji , Greg Kroah-Hartman , Robert Foss , Prashant Malani , =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" There are some drivers that can use the Type C mux API, but don't have to. Introduce CONFIG guards for the mux functions so that drivers can include the header file and not run into compilation errors on systems which don't have CONFIG_TYPEC enabled. When CONFIG_TYPEC is not enabled, the Type C mux functions will be stub versions of the original calls. Reported-by: kernel test robot Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Signed-off-by: Prashant Malani Reviewed-by: Heikki Krogerus --- Changes since v3: - No changes. Changes since v2: - Fix up return types for some of the stubs. Remove 1 unnecessary stub in the else condition. - Remove unnecessary IS_MODULE config guard. - Added Reviewed-by and Tested-by tags. Changes since v1: - Added static inline to stub functions. - Updated function signature of stub functions from "struct typec_mux" to "struct typec_mux_dev" in accordance with updates from commit 713fd49b430c ("usb: typec: mux: Introduce indirection") include/linux/usb/typec_mux.h | 44 ++++++++++++++++++++++++++++++----- 1 file changed, 38 insertions(+), 6 deletions(-) diff --git a/include/linux/usb/typec_mux.h b/include/linux/usb/typec_mux.h index ee57781dcf28..9292f0e07846 100644 --- a/include/linux/usb/typec_mux.h +++ b/include/linux/usb/typec_mux.h @@ -58,17 +58,13 @@ struct typec_mux_desc { void *drvdata; }; +#if IS_ENABLED(CONFIG_TYPEC) + struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, const struct typec_altmode_desc *desc); void typec_mux_put(struct typec_mux *mux); int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state); -static inline struct typec_mux * -typec_mux_get(struct device *dev, const struct typec_altmode_desc *desc) -{ - return fwnode_typec_mux_get(dev_fwnode(dev), desc); -} - struct typec_mux_dev * typec_mux_register(struct device *parent, const struct typec_mux_desc *desc); void typec_mux_unregister(struct typec_mux_dev *mux); @@ -76,4 +72,40 @@ void typec_mux_unregister(struct typec_mux_dev *mux); void typec_mux_set_drvdata(struct typec_mux_dev *mux, void *data); void *typec_mux_get_drvdata(struct typec_mux_dev *mux); +#else + +static inline struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, + const struct typec_altmode_desc *desc) +{ + return NULL; +} + +static inline void typec_mux_put(struct typec_mux *mux) {} + +static inline int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state) +{ + return 0; +} + +static inline struct typec_mux_dev * +typec_mux_register(struct device *parent, const struct typec_mux_desc *desc) +{ + return ERR_PTR(-EOPNOTSUPP); +} +static inline void typec_mux_unregister(struct typec_mux_dev *mux) {} + +static inline void typec_mux_set_drvdata(struct typec_mux_dev *mux, void *data) {} +static inline void *typec_mux_get_drvdata(struct typec_mux_dev *mux) +{ + return ERR_PTR(-EOPNOTSUPP); +} + +#endif /* CONFIG_TYPEC */ + +static inline struct typec_mux * +typec_mux_get(struct device *dev, const struct typec_altmode_desc *desc) +{ + return fwnode_typec_mux_get(dev_fwnode(dev), desc); +} + #endif /* __USB_TYPEC_MUX */ From patchwork Wed Jun 15 17:20:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Prashant Malani X-Patchwork-Id: 12882793 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B6C0FC43334 for ; Wed, 15 Jun 2022 17:25:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0075D1126FC; Wed, 15 Jun 2022 17:25:27 +0000 (UTC) Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by gabe.freedesktop.org (Postfix) with ESMTPS id 308F21126FC for ; Wed, 15 Jun 2022 17:25:26 +0000 (UTC) Received: by mail-pf1-x436.google.com with SMTP id u37so3623504pfg.3 for ; Wed, 15 Jun 2022 10:25:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=n+O4l98CKUL7yv4rRVYlrIx5OvopY+8TSKj5Ikkq3GM=; b=gghcg5nU3xACsIsovR9FpypGdUvez5exCrXgZBOdo7LpwjPJv4H/xILX5Hh5GSy5Vr l8kPxW9GmVc8Ue3y7TtcIORtJWI+zjA9PJn1NSCuqpbQulo3RUP2z0+bPiSRi3JDw73y nnGGTMuH1knVYujxOboX7OYG0H0m+9TaUpjcg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=n+O4l98CKUL7yv4rRVYlrIx5OvopY+8TSKj5Ikkq3GM=; b=O53iAY09D/C2AMkARRlzAK0G9xtIaznWXuEUM4L+nWcUdD3jSZtG9Jul84b6MlIAFj gI5VSKU4YHgdX/FE+puA3z4Cvb1zPJMSbYQ9Zlo78dlt+byM7dJdLKUzfOhZq7L4Fy46 bM3EKB6bTu8AmK0/4X1QEoupcOxQxtx8IcTIButKEPj8TpNF3aS7fdvbK++gxqqrm/Dq FHsNfcRfHSRf4TqVYmfIInDdxwKJN/KiTNKBW/x59zBV0oo1hF1+d/jaO/GVWCJq08fd M5jUWhY+d8ryBgh+3+uIQIBHYhPYA0RnT5HFcyjZESxFVh5wYJ5adzNGirqOK9VRGf/5 vDhQ== X-Gm-Message-State: AJIora+DPv4BwrQ3YyhGH2z2bbkualtC+IkkBD6uetz8xBfNE/96Y4is UI24vlDHYRAmypeBO/J7RsPD6Q== X-Google-Smtp-Source: AGRyM1tGCvTtzArk3W0yqf67r0nmmu/yAlWJ8zSXcnyuv01jrd8kkfDlmi9jTJeyYPFVjrKXkwE8LA== X-Received: by 2002:a63:ff19:0:b0:403:7c60:ae96 with SMTP id k25-20020a63ff19000000b004037c60ae96mr725428pgi.466.1655313925709; Wed, 15 Jun 2022 10:25:25 -0700 (PDT) Received: from pmalani.c.googlers.com.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id d10-20020aa7814a000000b005103abd2fdbsm10147433pfn.206.2022.06.15.10.25.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 10:25:24 -0700 (PDT) From: Prashant Malani To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v4 3/7] dt-bindings: usb: Add Type-C switch binding Date: Wed, 15 Jun 2022 17:20:19 +0000 Message-Id: <20220615172129.1314056-4-pmalani@chromium.org> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog In-Reply-To: <20220615172129.1314056-1-pmalani@chromium.org> References: <20220615172129.1314056-1-pmalani@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: heikki.krogerus@linux.intel.com, Andrzej Hajda , Neil Armstrong , David Airlie , "open list:DRM DRIVERS" , Laurent Pinchart , Krzysztof Kozlowski , Sam Ravnborg , Jernej Skrabec , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Thomas Zimmermann , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Jonas Karlman , swboyd@chromium.org, Pin-Yen Lin , Rob Herring , Maxime Ripard , Hsin-Yi Wang , Xin Ji , Greg Kroah-Hartman , Robert Foss , Prashant Malani , =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Introduce a binding which represents a component that can control the routing of USB Type-C data lines as well as address data line orientation (based on CC lines' orientation). Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Signed-off-by: Prashant Malani Reviewed-by: Krzysztof Kozlowski --- Changes since v3: - No changes. Changes since v2: - Added Reviewed-by and Tested-by tags. Changes since v1: - Removed "items" from compatible. - Fixed indentation in example. .../devicetree/bindings/usb/typec-switch.yaml | 74 +++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/typec-switch.yaml diff --git a/Documentation/devicetree/bindings/usb/typec-switch.yaml b/Documentation/devicetree/bindings/usb/typec-switch.yaml new file mode 100644 index 000000000000..78b0190c8543 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/typec-switch.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/typec-switch.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: USB Type-C Switch + +maintainers: + - Prashant Malani + +description: + A USB Type-C switch represents a component which routes USB Type-C data + lines to various protocol host controllers (e.g USB, VESA DisplayPort, + Thunderbolt etc.) depending on which mode the Type-C port, port partner + and cable are operating in. It can also modify lane routing based on + the orientation of a connected Type-C peripheral. + +properties: + compatible: + const: typec-switch + + mode-switch: + type: boolean + description: Specify that this switch can handle alternate mode switching. + + orientation-switch: + type: boolean + description: Specify that this switch can handle orientation switching. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + description: OF graph binding modelling data lines to the Type-C switch. + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Link between the switch and a Type-C connector. + + required: + - port@0 + +required: + - compatible + - ports + +anyOf: + - required: + - mode-switch + - required: + - orientation-switch + +additionalProperties: true + +examples: + - | + drm-bridge { + usb-switch { + compatible = "typec-switch"; + mode-switch; + orientation-switch; + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + anx_ep: endpoint { + remote-endpoint = <&typec_controller>; + }; + }; + }; + }; + }; From patchwork Wed Jun 15 17:20:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Prashant Malani X-Patchwork-Id: 12882794 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EB58FC433EF for ; Wed, 15 Jun 2022 17:26:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 331B611270C; Wed, 15 Jun 2022 17:26:42 +0000 (UTC) Received: from mail-pj1-x102e.google.com (mail-pj1-x102e.google.com [IPv6:2607:f8b0:4864:20::102e]) by gabe.freedesktop.org (Postfix) with ESMTPS id B4EA9112709 for ; Wed, 15 Jun 2022 17:26:40 +0000 (UTC) Received: by mail-pj1-x102e.google.com with SMTP id y13-20020a17090a154d00b001eaaa3b9b8dso2678448pja.2 for ; Wed, 15 Jun 2022 10:26:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=aa7FUr+a4wTLA6dveYSDwzq+b8uS7oCLyp/1t0s5ZQk=; b=CAQ+dmgXLnCpOneVjwNL5kpN6rOGZbSytP5STuLrI3qdQ1hVnuP9caJgZQNzUdthYe uSsFNuTORwXK3GxXnictIpOtpinr5qhJLleVZNgZqY1c0P+lxBEvYCHdMbDup9dctw2z dEVcqC3DjUSckiueSzrMDLdfw55sIl/2w2+QM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=aa7FUr+a4wTLA6dveYSDwzq+b8uS7oCLyp/1t0s5ZQk=; b=0mM3OEMx0pF/jbVhzQrwTHOHB6Z2PATJ3iXmXbxUlAM2EGZBJzFNaaKUsDiCmRVHhf 4vf+N/w1IFE4A9yEtkuSynC+SOZPzxxNk1aEgxS2CsFTUlZVAMHfJYN5KesfR4VqjvmL kZAyPkCS9w4MrrmlUM4qvM9dpWaKayq7PtR1gqqeSchJ0HEPl68+gyzmX20PmupoEfQ6 jKT3FOGmNKAfIYypmcOna6gLay2DJJs0DCKNv4DVhu1v+sdcTUmnhZMtt45m0UG8agXr QUz/o5qetp0aGwATxYLdFP9Z50HHi1ltrcwXis7YdKcPud26xplKmU7C0cGVn0Lyi3w6 0riA== X-Gm-Message-State: AJIora8JNakcv8OQh9G3I3ieEV1h6xiNDk9yn44qiLkRzXumoTu90IYl p/GQ2CECUsqXOUSRNonnWLG6yQ== X-Google-Smtp-Source: AGRyM1uSrdUs/T/dpJk26aZhxjT4s9RRiOCflVK1iLxjEQj7cxNMUO+9tRjyyANhGXkkD90n+7hMZg== X-Received: by 2002:a17:90a:f3c1:b0:1ea:a976:dd9a with SMTP id ha1-20020a17090af3c100b001eaa976dd9amr543523pjb.160.1655314000332; Wed, 15 Jun 2022 10:26:40 -0700 (PDT) Received: from pmalani.c.googlers.com.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id d10-20020aa7814a000000b005103abd2fdbsm10147433pfn.206.2022.06.15.10.26.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 10:26:40 -0700 (PDT) From: Prashant Malani To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v4 4/7] dt-bindings: drm/bridge: anx7625: Add mode-switch support Date: Wed, 15 Jun 2022 17:20:20 +0000 Message-Id: <20220615172129.1314056-5-pmalani@chromium.org> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog In-Reply-To: <20220615172129.1314056-1-pmalani@chromium.org> References: <20220615172129.1314056-1-pmalani@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: heikki.krogerus@linux.intel.com, Andrzej Hajda , Neil Armstrong , David Airlie , "open list:DRM DRIVERS" , Laurent Pinchart , Krzysztof Kozlowski , Sam Ravnborg , Jernej Skrabec , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Thomas Zimmermann , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Jonas Karlman , swboyd@chromium.org, Pin-Yen Lin , Rob Herring , Maxime Ripard , Hsin-Yi Wang , Xin Ji , Greg Kroah-Hartman , Robert Foss , Prashant Malani , =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Analogix 7625 can be used in systems to switch USB Type-C DisplayPort alternate mode lane traffic between 2 Type-C ports. Update the binding to accommodate this usage by introducing a switch property. Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Signed-off-by: Prashant Malani Reviewed-by: Krzysztof Kozlowski --- Changes since v3: - Fix unevaluatedProperties usage. - Add additionalProperties to top level "switches" nodes. - Make quotes consistent. - Add '^..$' to regex. (All suggested by Krzysztof Kozlowski) Changes since v2: - Added Reviewed-by and Tested-by tags. Changes since v1: - Introduced patternProperties for "switch" children (suggested by Krzysztof Kozlowski). - Added unevaluatedProperties descriptor (suggested by Krzysztof Kozlowski). - Added "address-cells" and "size-cells" properties to "switches". .../display/bridge/analogix,anx7625.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml index 35a48515836e..bc6f7644db31 100644 --- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml +++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml @@ -105,6 +105,34 @@ properties: - port@0 - port@1 + switches: + type: object + description: Set of switches controlling DisplayPort traffic on + outgoing RX/TX lanes to Type C ports. + additionalProperties: false + + properties: + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + patternProperties: + '^switch@[01]$': + $ref: /schemas/usb/typec-switch.yaml# + unevaluatedProperties: false + + properties: + reg: + maxItems: 1 + + required: + - reg + + required: + - switch@0 + required: - compatible - reg @@ -167,5 +195,41 @@ examples: }; }; }; + switches { + #address-cells = <1>; + #size-cells = <0>; + switch@0 { + compatible = "typec-switch"; + reg = <0>; + mode-switch; + + ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + anx_typec0: endpoint { + remote-endpoint = <&typec_port0>; + }; + }; + }; + }; + switch@1 { + compatible = "typec-switch"; + reg = <1>; + mode-switch; + + ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + anx_typec1: endpoint { + remote-endpoint = <&typec_port1>; + }; + }; + }; + }; + }; }; }; From patchwork Wed Jun 15 17:20:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Prashant Malani X-Patchwork-Id: 12882812 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F1E70C43334 for ; Wed, 15 Jun 2022 17:29:02 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4BB63112744; Wed, 15 Jun 2022 17:29:02 +0000 (UTC) Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by gabe.freedesktop.org (Postfix) with ESMTPS id E88DF11275A for ; Wed, 15 Jun 2022 17:29:00 +0000 (UTC) Received: by mail-pl1-x634.google.com with SMTP id d13so10956837plh.13 for ; Wed, 15 Jun 2022 10:29:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yU1gCwo/vpUxCIc57VV4IsZishi0TSmAXrvBQIGpe2U=; b=R48f0TErt8niv/gv0d0lSVb6ITUrGLs9Pd30o8jOJZHXeD52Fzw4OHBJ7lzPtQ1FLu wTXzhTC2c8lGmQ/HkwHyMOyoDwMv8eMS97KPLg62tAJyPlPdqaPPN9e5lywZaCofvNb/ 2stqabdAEpTT7j5KWGiwE2SbZRUUlEodPRwkk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=yU1gCwo/vpUxCIc57VV4IsZishi0TSmAXrvBQIGpe2U=; b=PMOueivWl0YIwjnIsn0h6p2yeHXR2vlW0QoTm/z9hqyPUr973yPUVcUlmsevaqNexL W71Wvpoe4vhBxrTxJiuy0nyCYxpZ+prF7yMRvfznl/V9iDa88VKhsl1LuX1L1Rti5yGY 3isb5cdba9X8bcY7R1D89asKCJpddWlP6fdmXIDG9rHWgX1ihHi6CwG+DVbqvkGTpZwp 4DKrEs61dF3nCZ1bRaAO2YCK29qoI2lxbLkkjIoc4YmHCdle88HT7RFkFFgHOJlI9jia BQvAPVbDAe+IQVJua1KMgNm7bV0BBRi8tIerjRIbPPlOdYkAtle190GAR2IuYUTyGTrV 9uAw== X-Gm-Message-State: AJIora9fY7gL2/bTXFoeOXIfVnVAAiLDw04tZ2OA6QWeiV4UUJ/2VWnE yIMPibxioRxU4FA1fP7FVLkiTg== X-Google-Smtp-Source: AGRyM1vwzPqUpHG5Lx/pI9IZTeCHB9Koz2dOT5UMwKL1uJ93y7aUKTlLKD5db94RZYOrNopuHiJliQ== X-Received: by 2002:a17:903:1cd:b0:168:e97b:54be with SMTP id e13-20020a17090301cd00b00168e97b54bemr782149plh.163.1655314140495; Wed, 15 Jun 2022 10:29:00 -0700 (PDT) Received: from pmalani.c.googlers.com.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id d10-20020aa7814a000000b005103abd2fdbsm10147433pfn.206.2022.06.15.10.29.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 10:29:00 -0700 (PDT) From: Prashant Malani To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v4 5/7] drm/bridge: anx7625: Register number of Type C switches Date: Wed, 15 Jun 2022 17:20:21 +0000 Message-Id: <20220615172129.1314056-6-pmalani@chromium.org> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog In-Reply-To: <20220615172129.1314056-1-pmalani@chromium.org> References: <20220615172129.1314056-1-pmalani@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: heikki.krogerus@linux.intel.com, Andrzej Hajda , Neil Armstrong , David Airlie , "open list:DRM DRIVERS" , Laurent Pinchart , Krzysztof Kozlowski , Sam Ravnborg , Jernej Skrabec , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Thomas Zimmermann , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Jonas Karlman , swboyd@chromium.org, Pin-Yen Lin , Rob Herring , Maxime Ripard , Hsin-Yi Wang , Xin Ji , Greg Kroah-Hartman , Robert Foss , Prashant Malani , =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Parse the "switches" node, if available, and count and store the number of Type-C switches within it. Since we currently don't do anything with this info, no functional changes are expected from this change. This patch sets a foundation for the actual registering of Type-C switches with the Type-C connector class framework. Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Signed-off-by: Prashant Malani --- Changes since v3: - No changes. Changes since v2: - Move ret variable to Patch v3 6/7. - Make error print a dev_dbg, since it is noisy. - Added Reviewed-by and Tested-by tags. Changes since v1: - No changes. drivers/gpu/drm/bridge/analogix/anx7625.c | 18 ++++++++++++++++++ drivers/gpu/drm/bridge/analogix/anx7625.h | 1 + 2 files changed, 19 insertions(+) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 53a5da6c49dd..e3d4c2738b8c 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -2581,6 +2581,20 @@ static void anx7625_runtime_disable(void *data) pm_runtime_disable(data); } +static int anx7625_register_typec_switches(struct device *device, struct anx7625_data *ctx) +{ + struct device_node *of = of_get_child_by_name(device->of_node, "switches"); + + if (!of) + return -ENODEV; + + ctx->num_typec_switches = of_get_child_count(of); + if (ctx->num_typec_switches <= 0) + return -ENODEV; + + return 0; +} + static int anx7625_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -2686,6 +2700,10 @@ static int anx7625_i2c_probe(struct i2c_client *client, if (platform->pdata.intp_irq) queue_work(platform->workqueue, &platform->work); + ret = anx7625_register_typec_switches(dev, platform); + if (ret) + dev_dbg(dev, "Didn't register Type C switches, err: %d\n", ret); + platform->bridge.funcs = &anx7625_bridge_funcs; platform->bridge.of_node = client->dev.of_node; if (!anx7625_of_panel_on_aux_bus(&client->dev)) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.h b/drivers/gpu/drm/bridge/analogix/anx7625.h index e257a84db962..d5cbca708842 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.h +++ b/drivers/gpu/drm/bridge/analogix/anx7625.h @@ -473,6 +473,7 @@ struct anx7625_data { struct drm_connector *connector; struct mipi_dsi_device *dsi; struct drm_dp_aux aux; + int num_typec_switches; }; #endif /* __ANX7625_H__ */ From patchwork Wed Jun 15 17:20:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Prashant Malani X-Patchwork-Id: 12882813 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A50B1C43334 for ; Wed, 15 Jun 2022 17:30:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BDB13112740; Wed, 15 Jun 2022 17:30:12 +0000 (UTC) Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5C13B11275B for ; Wed, 15 Jun 2022 17:30:11 +0000 (UTC) Received: by mail-pg1-x529.google.com with SMTP id 184so11957401pga.12 for ; Wed, 15 Jun 2022 10:30:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6culLu8Dk3rzyJWu55f+Mr5Uwb5J3lBiEPJ8LAzaeEU=; b=efkj7DkT5itHUuSWTimca6V8Dl8BYgPcpa2YZNDQrmu3cIf6RC9eQVwsvgiC5s/Cj+ Voz2aMekulQK0r89/sXT5fB8sfP+nMa4Kh56MgJ9o0kJTn9ch85lyVVTTDucSKFZ47pW oN75nop1FrxRtYmRt7+0gL5ZqE3X1kSpab7rA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6culLu8Dk3rzyJWu55f+Mr5Uwb5J3lBiEPJ8LAzaeEU=; b=rnCsSLHLICp3conr38uUdJ/h1A4O1sKG90DrFSlSlTgt8e1w2tCRAzhCi5O+jEV1J5 v1Qvpvh+Bni/Wb32Rk9XJAHMWDQXFxtlaU/vfANQuraLXcsnrs30yvFaJBCvwiGGRigU XupKrNxesCbAXmLwR5stZsw/8l0+RlUbvmR1o1eetnHD1D6xsZSgn8P5OuRnbOr9NiMP Lv5Y7KM8WgvPBtS4Juc2vysgAmjF4h5lMsNeOJW13XMllJCUfeYxFOAOmzDUjQH0Fvjb NKbgh6UA8eB9eZ4o0TLE1Bi+Rgsb3IfoDXnvV5GtGlH/6rKxADHZ0doC5rRevFu55CKn tiWw== X-Gm-Message-State: AJIora8DCOJub9153+3FMkROpk5iDZ/84U9HgQlWQR+jYb1/WP7DdcvV x+5qzeVO8awYM7yakwXAVMgekw== X-Google-Smtp-Source: AGRyM1uyYuXv/zNVaSknswcFjiqrPpyY+9txa301mMTCpJQJ2mWo3Mt58qohGEwgUKir1yneBQXd+w== X-Received: by 2002:a63:234f:0:b0:405:3981:be7 with SMTP id u15-20020a63234f000000b0040539810be7mr744099pgm.15.1655314210872; Wed, 15 Jun 2022 10:30:10 -0700 (PDT) Received: from pmalani.c.googlers.com.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id d10-20020aa7814a000000b005103abd2fdbsm10147433pfn.206.2022.06.15.10.30.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 10:30:10 -0700 (PDT) From: Prashant Malani To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v4 6/7] drm/bridge: anx7625: Register Type-C mode switches Date: Wed, 15 Jun 2022 17:20:22 +0000 Message-Id: <20220615172129.1314056-7-pmalani@chromium.org> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog In-Reply-To: <20220615172129.1314056-1-pmalani@chromium.org> References: <20220615172129.1314056-1-pmalani@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: heikki.krogerus@linux.intel.com, Andrzej Hajda , Neil Armstrong , David Airlie , "open list:DRM DRIVERS" , Laurent Pinchart , Krzysztof Kozlowski , Sam Ravnborg , Jernej Skrabec , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Thomas Zimmermann , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Jonas Karlman , swboyd@chromium.org, Pin-Yen Lin , Rob Herring , Maxime Ripard , Hsin-Yi Wang , Xin Ji , Greg Kroah-Hartman , Robert Foss , Prashant Malani , =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" When the DT node has "switches" available, register a Type-C mode-switch for each listed "switch". This allows the driver to receive state information about what operating mode a Type-C port and its connected peripherals are in, as well as status information (like VDOs) related to that state. The callback function is currently a stub, but subsequent patches will implement the required functionality. Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Signed-off-by: Prashant Malani --- Changes since v3: - No changes. Changes since v2: - Updated dev_info() to dev_warn() print, but added a check to ensure it only triggers on non -ENODEV errors. - Made conflict resolutions resulting from changes introduced in Patch v3 5/7 (add ret variable here instead of in Patch v3 5/7). - Added Reviewed-by and Tested-by tags. Changes since v1: - No changes. drivers/gpu/drm/bridge/analogix/anx7625.c | 82 +++++++++++++++++++++-- drivers/gpu/drm/bridge/analogix/anx7625.h | 6 ++ 2 files changed, 84 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index e3d4c2738b8c..bd21f159b973 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -2581,10 +2582,61 @@ static void anx7625_runtime_disable(void *data) pm_runtime_disable(data); } +static int anx7625_typec_mux_set(struct typec_mux_dev *mux, + struct typec_mux_state *state) +{ + return 0; +} + +static int anx7625_register_mode_switch(struct device *dev, struct device_node *node, + struct anx7625_data *ctx) +{ + struct anx7625_port_data *port_data; + struct typec_mux_desc mux_desc = {}; + char name[32]; + u32 port_num; + int ret; + + ret = of_property_read_u32(node, "reg", &port_num); + if (ret) + return ret; + + if (port_num >= ctx->num_typec_switches) { + dev_err(dev, "Invalid port number specified: %d\n", port_num); + return -EINVAL; + } + + port_data = &ctx->typec_ports[port_num]; + port_data->ctx = ctx; + mux_desc.fwnode = &node->fwnode; + mux_desc.drvdata = port_data; + snprintf(name, sizeof(name), "%s-%u", node->name, port_num); + mux_desc.name = name; + mux_desc.set = anx7625_typec_mux_set; + + port_data->typec_mux = typec_mux_register(dev, &mux_desc); + if (IS_ERR(port_data->typec_mux)) { + ret = PTR_ERR(port_data->typec_mux); + dev_err(dev, "Mode switch register for port %d failed: %d", port_num, ret); + } + + return ret; +} + +static void anx7625_unregister_typec_switches(struct anx7625_data *ctx) +{ + int i; + + for (i = 0; i < ctx->num_typec_switches; i++) + typec_mux_unregister(ctx->typec_ports[i].typec_mux); +} + static int anx7625_register_typec_switches(struct device *device, struct anx7625_data *ctx) { - struct device_node *of = of_get_child_by_name(device->of_node, "switches"); + struct device_node *of, *sw; + int ret = 0; + of = of_get_child_by_name(device->of_node, "switches"); if (!of) return -ENODEV; @@ -2592,7 +2644,27 @@ static int anx7625_register_typec_switches(struct device *device, struct anx7625 if (ctx->num_typec_switches <= 0) return -ENODEV; - return 0; + ctx->typec_ports = devm_kzalloc(device, + ctx->num_typec_switches * sizeof(struct anx7625_port_data), + GFP_KERNEL); + if (!ctx->typec_ports) + return -ENOMEM; + + /* Register switches for each connector. */ + for_each_available_child_of_node(of, sw) { + if (!of_property_read_bool(sw, "mode-switch")) + continue; + ret = anx7625_register_mode_switch(device, sw, ctx); + if (ret) { + dev_err(device, "Failed to register mode switch: %d\n", ret); + break; + } + } + + if (ret) + anx7625_unregister_typec_switches(ctx); + + return ret; } static int anx7625_i2c_probe(struct i2c_client *client, @@ -2701,8 +2773,8 @@ static int anx7625_i2c_probe(struct i2c_client *client, queue_work(platform->workqueue, &platform->work); ret = anx7625_register_typec_switches(dev, platform); - if (ret) - dev_dbg(dev, "Didn't register Type C switches, err: %d\n", ret); + if (ret && ret != -ENODEV) + dev_warn(dev, "Didn't register Type C switches, err: %d\n", ret); platform->bridge.funcs = &anx7625_bridge_funcs; platform->bridge.of_node = client->dev.of_node; @@ -2757,6 +2829,8 @@ static int anx7625_i2c_remove(struct i2c_client *client) drm_bridge_remove(&platform->bridge); + anx7625_unregister_typec_switches(platform); + if (platform->pdata.intp_irq) destroy_workqueue(platform->workqueue); diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.h b/drivers/gpu/drm/bridge/analogix/anx7625.h index d5cbca708842..76cfc64f7574 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.h +++ b/drivers/gpu/drm/bridge/analogix/anx7625.h @@ -443,6 +443,11 @@ struct anx7625_i2c_client { struct i2c_client *tcpc_client; }; +struct anx7625_port_data { + struct typec_mux_dev *typec_mux; + struct anx7625_data *ctx; +}; + struct anx7625_data { struct anx7625_platform_data pdata; struct platform_device *audio_pdev; @@ -474,6 +479,7 @@ struct anx7625_data { struct mipi_dsi_device *dsi; struct drm_dp_aux aux; int num_typec_switches; + struct anx7625_port_data *typec_ports; }; #endif /* __ANX7625_H__ */ From patchwork Wed Jun 15 17:20:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Prashant Malani X-Patchwork-Id: 12882814 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 20173C433EF for ; Wed, 15 Jun 2022 17:31:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4813D11276C; Wed, 15 Jun 2022 17:31:28 +0000 (UTC) Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by gabe.freedesktop.org (Postfix) with ESMTPS id 186A411275F for ; Wed, 15 Jun 2022 17:31:24 +0000 (UTC) Received: by mail-pg1-x535.google.com with SMTP id l4so10920071pgh.13 for ; Wed, 15 Jun 2022 10:31:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wmCuVasGBHT+oeeLMMo5433/xEeQJbzTl6n4hqXBTCk=; b=HJHVVJndWSroXL8p792C1jSRti6XTfPSo+LFfFDAIlYBl1LifrQ0MEWldc7GhWY3zE VNvHCvuE3vrAZ0XaLbT2RsXT9KEDuEYk9Edpvxeqr5Lm3Z3PqEorVFpkALmFU1bHN4nP FstsaD9Wo+lVZ5T+I6Vj3XudDBgklJHfIZwlM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=wmCuVasGBHT+oeeLMMo5433/xEeQJbzTl6n4hqXBTCk=; b=bTst1vjCooAVLQ7LzbNdDXxu7WYZZ1xahEhmKvLKfCjFl0pthrj/zpBrFGIFQ1qGNQ 8CrkC2J6Nk1NMhrAofEiSJsv/mCqk9W0TmHbVn/WXv9Lg9Mz4krwUuuEJpfqFzq4ZKT9 XGyx51Tz1LKJ2svb7XV0rlGWk4OKtRCgA1gXwTrUs0ZdmhWbKwcrksQ006vnCKjhv56l IZpTzQhehClY2VjAN3XeYv35g7sXXBZz25SIsGeBsQnOQ5mxMwUDm9IbfQCJiq4TdNDq QXb4RN08ZHCAC4jKRIDwjLDurzfqtXFmvjdMj80k9VtVjCTUiV2Xj5gSH0Zb6YhK8gq2 fQuA== X-Gm-Message-State: AJIora/cefCFVAYfOfF8uqI362r5W2h5QiThx+3ORw1slBLZqUlsbUL0 /6KtOQSTTd+1t4SAabNlrkNAWA== X-Google-Smtp-Source: AGRyM1tFrR4gnXmY5HmGoU47YNts9hwluvgy8faKnzboRPTMIoiWnP92JTAXRCYZL3wLk1Z0s1gRdg== X-Received: by 2002:a63:155:0:b0:3fd:1b8e:16ca with SMTP id 82-20020a630155000000b003fd1b8e16camr749024pgb.407.1655314283666; Wed, 15 Jun 2022 10:31:23 -0700 (PDT) Received: from pmalani.c.googlers.com.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id d10-20020aa7814a000000b005103abd2fdbsm10147433pfn.206.2022.06.15.10.31.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 10:31:22 -0700 (PDT) From: Prashant Malani To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v4 7/7] drm/bridge: anx7625: Add typec_mux_set callback function Date: Wed, 15 Jun 2022 17:20:23 +0000 Message-Id: <20220615172129.1314056-8-pmalani@chromium.org> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog In-Reply-To: <20220615172129.1314056-1-pmalani@chromium.org> References: <20220615172129.1314056-1-pmalani@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: heikki.krogerus@linux.intel.com, Andrzej Hajda , Neil Armstrong , David Airlie , "open list:DRM DRIVERS" , Laurent Pinchart , Krzysztof Kozlowski , Sam Ravnborg , Jernej Skrabec , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Thomas Zimmermann , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Jonas Karlman , swboyd@chromium.org, Pin-Yen Lin , Rob Herring , Maxime Ripard , Hsin-Yi Wang , Xin Ji , AngeloGioacchino Del Regno , Greg Kroah-Hartman , Robert Foss , Prashant Malani , =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Pin-Yen Lin Add the callback function when the driver receives state changes of the Type-C port. The callback function configures the crosspoint switch of the anx7625 bridge chip, which can change the output pins of the signals according to the port state. Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Signed-off-by: Pin-Yen Lin Signed-off-by: Prashant Malani --- Changes since v3: - Added Reviewed-by tag from Angelo. Changes since v2: - Moved num_typec_switches check to beginning of function - Made dp_connected assignments fit on one line (and removed unnecessary parentheses) - Added Reviewed-by and Tested-by tags. Changes since v1: - No changes. drivers/gpu/drm/bridge/analogix/anx7625.c | 56 +++++++++++++++++++++++ drivers/gpu/drm/bridge/analogix/anx7625.h | 13 ++++++ 2 files changed, 69 insertions(+) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index bd21f159b973..5992fc8beeeb 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -2582,9 +2583,64 @@ static void anx7625_runtime_disable(void *data) pm_runtime_disable(data); } +static void anx7625_set_crosspoint_switch(struct anx7625_data *ctx, + enum typec_orientation orientation) +{ + if (orientation == TYPEC_ORIENTATION_NORMAL) { + anx7625_reg_write(ctx, ctx->i2c.tcpc_client, TCPC_SWITCH_0, + SW_SEL1_SSRX_RX1 | SW_SEL1_DPTX0_RX2); + anx7625_reg_write(ctx, ctx->i2c.tcpc_client, TCPC_SWITCH_1, + SW_SEL2_SSTX_TX1 | SW_SEL2_DPTX1_TX2); + } else if (orientation == TYPEC_ORIENTATION_REVERSE) { + anx7625_reg_write(ctx, ctx->i2c.tcpc_client, TCPC_SWITCH_0, + SW_SEL1_SSRX_RX2 | SW_SEL1_DPTX0_RX1); + anx7625_reg_write(ctx, ctx->i2c.tcpc_client, TCPC_SWITCH_1, + SW_SEL2_SSTX_TX2 | SW_SEL2_DPTX1_TX1); + } +} + +static void anx7625_typec_two_ports_update(struct anx7625_data *ctx) +{ + if (ctx->typec_ports[0].dp_connected && ctx->typec_ports[1].dp_connected) + /* Both ports available, do nothing to retain the current one. */ + return; + else if (ctx->typec_ports[0].dp_connected) + anx7625_set_crosspoint_switch(ctx, TYPEC_ORIENTATION_NORMAL); + else if (ctx->typec_ports[1].dp_connected) + anx7625_set_crosspoint_switch(ctx, TYPEC_ORIENTATION_REVERSE); +} + static int anx7625_typec_mux_set(struct typec_mux_dev *mux, struct typec_mux_state *state) { + struct anx7625_port_data *data = typec_mux_get_drvdata(mux); + struct anx7625_data *ctx = data->ctx; + struct device *dev = &ctx->client->dev; + bool new_dp_connected, old_dp_connected; + + if (ctx->num_typec_switches == 1) + return 0; + + old_dp_connected = ctx->typec_ports[0].dp_connected || ctx->typec_ports[1].dp_connected; + + dev_dbg(dev, "mux_set dp_connected: c0=%d, c1=%d\n", + ctx->typec_ports[0].dp_connected, ctx->typec_ports[1].dp_connected); + + data->dp_connected = (state->alt && state->alt->svid == USB_TYPEC_DP_SID && + state->alt->mode == USB_TYPEC_DP_MODE); + + new_dp_connected = ctx->typec_ports[0].dp_connected || ctx->typec_ports[1].dp_connected; + + /* dp on, power on first */ + if (!old_dp_connected && new_dp_connected) + pm_runtime_get_sync(dev); + + anx7625_typec_two_ports_update(ctx); + + /* dp off, power off last */ + if (old_dp_connected && !new_dp_connected) + pm_runtime_put_sync(dev); + return 0; } diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.h b/drivers/gpu/drm/bridge/analogix/anx7625.h index 76cfc64f7574..7d6c6fdf9a3a 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.h +++ b/drivers/gpu/drm/bridge/analogix/anx7625.h @@ -55,6 +55,18 @@ #define HPD_STATUS_CHANGE 0x80 #define HPD_STATUS 0x80 +#define TCPC_SWITCH_0 0xB4 +#define SW_SEL1_DPTX0_RX2 BIT(0) +#define SW_SEL1_DPTX0_RX1 BIT(1) +#define SW_SEL1_SSRX_RX2 BIT(4) +#define SW_SEL1_SSRX_RX1 BIT(5) + +#define TCPC_SWITCH_1 0xB5 +#define SW_SEL2_DPTX1_TX2 BIT(0) +#define SW_SEL2_DPTX1_TX1 BIT(1) +#define SW_SEL2_SSTX_TX2 BIT(4) +#define SW_SEL2_SSTX_TX1 BIT(5) + /******** END of I2C Address 0x58 ********/ /***************************************************************/ @@ -444,6 +456,7 @@ struct anx7625_i2c_client { }; struct anx7625_port_data { + bool dp_connected; struct typec_mux_dev *typec_mux; struct anx7625_data *ctx; };