From patchwork Tue Jan 24 19:23:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Halaney X-Patchwork-Id: 13114638 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 61C52C54E94 for ; Tue, 24 Jan 2023 19:25:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233925AbjAXTZS (ORCPT ); Tue, 24 Jan 2023 14:25:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57128 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233062AbjAXTZR (ORCPT ); Tue, 24 Jan 2023 14:25:17 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEEBB4C6CB for ; Tue, 24 Jan 2023 11:24:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1674588264; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=cO6b+dBIzWhUJ0Ot0Nn16J8i3J9gyi8QLbDA6Oroy1E=; b=B1NXQj/96QP3d1RKURPicgtZDFE7li6G6jwsydeSDrrKLX8PSkIGgxZp5hVkyhTLRcPTE9 mC6iKU1It6LFFYRo9vA+M7SXWrJU5ZFM7Et62WBdsAR/YRcG+8lD/5cvcEUVIvTcKGWfji LOpz27jHDcu2y5I/uqAc/ongbGWbBEs= Received: from mail-ot1-f72.google.com (mail-ot1-f72.google.com [209.85.210.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-259-0xKtew2lOCyJHclhDTeYCQ-1; Tue, 24 Jan 2023 14:24:22 -0500 X-MC-Unique: 0xKtew2lOCyJHclhDTeYCQ-1 Received: by mail-ot1-f72.google.com with SMTP id c13-20020a9d784d000000b006866230a44aso8117446otm.15 for ; Tue, 24 Jan 2023 11:24:22 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=cO6b+dBIzWhUJ0Ot0Nn16J8i3J9gyi8QLbDA6Oroy1E=; b=i1pSG9kdrwyhdejSmmudlPgQXvxiyFVYoYS8Q9yladomM7qiJKPEtdydRO9L8+WItR 8X8nlEqPBj8Le5uuaI1hCB4qt83D6WAqP5XVJ8hLfERIdtbU/pK/yemhl1C0vZlSZchu x9PF1EW7vb1b91mYmwQyQpYe3r80a6MR0ANCWgOFPB6WQkIS4bflQ/9ISC5DCejvH/BA RwZ+POoUNVcAjVwXsumEoYnddDKNSQdAQGuZ//kPcfDDimPmZ0BSI7/DcP/3QMdNTIKp qtGqkQPXtbsbza3ANKTZpvJYxvNuKhfAS0QTexf0mwsDv3ktlbpdVtu3paaOK1VADSV4 6+Xg== X-Gm-Message-State: AFqh2kohHgXKRHuS8wSapoXxj+onod1GGtp9t5mvgc3mXQjnsoxqY5Qx nQtZt4Gc9GDJSMmlZfB5LWrIenujeJNHmI7EWHIfH+BHV5K7x5SlrCSckK1LsNm1HsSgYrmBvPp acHer64WwI5cSk115RAgJhaTX/w== X-Received: by 2002:a05:6808:300e:b0:364:f962:afd1 with SMTP id ay14-20020a056808300e00b00364f962afd1mr15578552oib.56.1674588262025; Tue, 24 Jan 2023 11:24:22 -0800 (PST) X-Google-Smtp-Source: AMrXdXtXJqXdze5ERKsi/TEq4I3Qn8MLneaaxsNGXIqSS/Q8exKfwqcnDFs/GLX78SPVbd3lckA+0A== X-Received: by 2002:a05:6808:300e:b0:364:f962:afd1 with SMTP id ay14-20020a056808300e00b00364f962afd1mr15578541oib.56.1674588261773; Tue, 24 Jan 2023 11:24:21 -0800 (PST) Received: from halaney-x13s.attlocal.net ([2600:1700:1ff0:d0e0::21]) by smtp.gmail.com with ESMTPSA id r21-20020a056808211500b0036e3bb67a20sm1388024oiw.38.2023.01.24.11.24.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Jan 2023 11:24:21 -0800 (PST) From: Andrew Halaney To: andersson@kernel.org Cc: agross@kernel.org, konrad.dybcio@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, bmasney@redhat.com, quic_shazhuss@quicinc.com, Andrew Halaney Subject: [PATCH 2/2] arm64: dts: qcom: sa8540p-ride: Document i2c busses Date: Tue, 24 Jan 2023 13:23:51 -0600 Message-Id: <20230124192351.695838-2-ahalaney@redhat.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124192351.695838-1-ahalaney@redhat.com> References: <20230124192351.695838-1-ahalaney@redhat.com> MIME-Version: 1.0 Content-type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org It isn't obvious in the current devicetree what is connected. Go ahead and document what's on the other end. Signed-off-by: Andrew Halaney --- Not sure if this sort of patch is actually welcomed or not but I went through this exercise (for the prior patch) and thought it might be useful to document. Shazad, this also highlights (unless I misread things) that i2c12 has no use for us, right? If agreed I can remove it but sorting through the lore links that provided all this it seems like at the time it was desired to be added. Thanks, Andrew arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts index cb9fbdeb5a9e..3478ab91fe73 100644 --- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts +++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts @@ -317,6 +317,7 @@ &xo_board_clk { &tlmm { i2c0_default: i2c0-default-state { + /* To USB7002T-I/KDXVA0 USB hub (SIP1 only) */ pins = "gpio135", "gpio136"; function = "qup0"; drive-strength = <2>; @@ -324,6 +325,7 @@ i2c0_default: i2c0-default-state { }; i2c1_default: i2c1-default-state { + /* To PM40028B-F3EI PCIe switch */ pins = "gpio158", "gpio159"; function = "qup1"; drive-strength = <2>; @@ -331,6 +333,7 @@ i2c1_default: i2c1-default-state { }; i2c12_default: i2c12-default-state { + /* Not connected */ pins = "gpio0", "gpio1"; function = "qup12"; drive-strength = <2>; @@ -338,6 +341,7 @@ i2c12_default: i2c12-default-state { }; i2c15_default: i2c15-default-state { + /* To display connector (SIP1 only) */ pins = "gpio36", "gpio37"; function = "qup15"; drive-strength = <2>; @@ -345,6 +349,7 @@ i2c15_default: i2c15-default-state { }; i2c18_default: i2c18-default-state { + /* To ASM330LHH IMU (SIP1 only) */ pins = "gpio66", "gpio67"; function = "qup18"; drive-strength = <2>;