From patchwork Sat Nov 12 20:07:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Elder X-Patchwork-Id: 624279 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 2EC8FC4332F for ; Sat, 12 Nov 2022 20:07:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235028AbiKLUHu (ORCPT ); Sat, 12 Nov 2022 15:07:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235020AbiKLUHb (ORCPT ); Sat, 12 Nov 2022 15:07:31 -0500 Received: from mail-il1-x132.google.com (mail-il1-x132.google.com [IPv6:2607:f8b0:4864:20::132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 803A4167D9 for ; Sat, 12 Nov 2022 12:07:30 -0800 (PST) Received: by mail-il1-x132.google.com with SMTP id x16so4022252ilm.5 for ; Sat, 12 Nov 2022 12:07:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=umpLk1dbP5jy5ZPV4Q21UM7cr1nZKFjsXDStFsdzpxA=; b=Ut/gqy52LOxFagWry8zJuDnyu69bte+omzwmYqNJjdvDmQX60UlPpo692bej4Zhl9C tiH32C6p562bFsgNQA8qY2bXfS9xVCJDURVWy9Axdoe4EDtoH3XEqI0TZ2T7qjHfcFJB PaY2LK/FfpGEuv0LrqIoWWh6tWDsbtR+x8kK1rs4TBR9zzW2uRrVBikuYPEPu/LI/3vX BRKu2HCJ9gP608jB7pEpv+zCebScrj1VyC87MTS0v8ueM5/5I6Ilt3hRJUlw1su3zUAf wkjT+etQqpiHzS1wCY+eYesaBbyEXYjEPwEMwYfygSVfg68S6NMNma9zaalqmkK3WA77 QdPg== 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=umpLk1dbP5jy5ZPV4Q21UM7cr1nZKFjsXDStFsdzpxA=; b=sEV0buufLKitNkFR7dW8II50xJFVm5zEB/JQvhHxNM4MN4vPdq7SGcsWBNCi6k4vPN ioUqNkdQ+BmGUvs269b/AkWBvxNeSl19ABk3JP812ygmpTV2F2LLPVpn3hxynmMAf2FI S6sOt2MHK4TkjGjZNt6D5adBLCM9uVL+lIBuTWMd/AYdXBHRX2p9DYkbF84nBbMmMyAs Gir6EGqOzqNH0VJPY3ZafeqlMud0Xs5aDgLOClR537scn9A8/TsmjowH8uu7zIZpmGTP MxUSuInuujD6BU8jMLOGHxbYgXqdtYK+pNSVPWfiGtrXF+TaR+1dbSL+rzPqYKbHM3zn BPfQ== X-Gm-Message-State: ANoB5plwpTjRNx/ezAR31qzpLSnhfQ6A8/ebOP8YEMjDnsVnmYvlXXDQ GsHXdE9WLcEER5HF3DjZsxXDLw== X-Google-Smtp-Source: AA0mqf6wJzsiyKserLnxFT3qmoxPiw6AwBOUHizEn6i/Wpy285f3kTXAf8dscv0fIstCOJQ0uE9myA== X-Received: by 2002:a92:da45:0:b0:302:568e:b493 with SMTP id p5-20020a92da45000000b00302568eb493mr210216ilq.183.1668283649429; Sat, 12 Nov 2022 12:07:29 -0800 (PST) Received: from presto.localdomain ([98.61.227.136]) by smtp.gmail.com with ESMTPSA id j28-20020a02cb1c000000b00363dee286edsm2036870jap.60.2022.11.12.12.07.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 12 Nov 2022 12:07:28 -0800 (PST) From: Alex Elder To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: andersson@kernel.org, konrad.dybcio@linaro.org, agross@kernel.org, elder@kernel.org, linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 5/5] net: ipa: permit GSI firmware loading to be skipped Date: Sat, 12 Nov 2022 14:07:17 -0600 Message-Id: <20221112200717.1533622-6-elder@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221112200717.1533622-1-elder@linaro.org> References: <20221112200717.1533622-1-elder@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Define a new value "skip" for the "qcom,gsi-loader" Device Tree property. If used, it indicates that neither the AP nor the modem need to load GSI firmware (because it has already been loaded--for example by the boot loader). Signed-off-by: Alex Elder --- drivers/net/ipa/ipa_main.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/net/ipa/ipa_main.c b/drivers/net/ipa/ipa_main.c index 214e524dce795..8f20825675a1a 100644 --- a/drivers/net/ipa/ipa_main.c +++ b/drivers/net/ipa/ipa_main.c @@ -87,12 +87,14 @@ * @IPA_LOADER_DEFER: System not ready; try again later * @IPA_LOADER_SELF: AP loads GSI firmware * @IPA_LOADER_MODEM: Modem loads GSI firmware, signals when done + * @IPA_LOADER_SKIP: Neither AP nor modem need to load GSI firmware * @IPA_LOADER_INVALID: GSI firmware loader specification is invalid */ enum ipa_firmware_loader { IPA_LOADER_DEFER, IPA_LOADER_SELF, IPA_LOADER_MODEM, + IPA_LOADER_SKIP, IPA_LOADER_INVALID, }; @@ -740,6 +742,10 @@ static enum ipa_firmware_loader ipa_firmware_loader(struct device *dev) if (!strcmp(str, "modem")) return IPA_LOADER_MODEM; + /* No GSI firmware load is needed for "skip" */ + if (!strcmp(str, "skip")) + return IPA_LOADER_SKIP; + /* Any value other than "self" is an error */ if (strcmp(str, "self")) return IPA_LOADER_INVALID; @@ -872,10 +878,12 @@ static int ipa_probe(struct platform_device *pdev) if (loader == IPA_LOADER_MODEM) goto done; - /* The AP is loading GSI firmware; do so now */ - ret = ipa_firmware_load(dev); - if (ret) - goto err_deconfig; + if (loader == IPA_LOADER_SELF) { + /* The AP is loading GSI firmware; do so now */ + ret = ipa_firmware_load(dev); + if (ret) + goto err_deconfig; + } /* Otherwise loader == IPA_LOADER_SKIP */ /* GSI firmware is loaded; proceed to setup */ ret = ipa_setup(ipa);