From patchwork Thu Nov 5 21:21:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Hilber X-Patchwork-Id: 11885247 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=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 27817C55178 for ; Thu, 5 Nov 2020 21:22:38 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A86112073A for ; Thu, 5 Nov 2020 21:22:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="r1bpZqSJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A86112073A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=opensynergy.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=hAq4EJoi2kZvKVLhiAsCuISk/fe6sva+S6wkzi9SzJs=; b=r1bpZqSJtcJ+KeE1gxRt84xu4 tvF1MUudPwq2yDyqbyBAvs+Kpn46Wh9z9XTPEYTLQgqcoduiS8ULeYW8tUEvVv9eC3VfpKkxlmLJU qQwEVyxHloGXdR3KJJ/qcVUn4qCxg+0stn5xX0Q6X7+iDe09JDNk+i0Xuk2VS5Ry/6FxJcAqnUVmD GUG4dr5ctlXEjKvefBwowTZD7GmLlbHgzUUTbYW2z09r4a4Il7Eb/z6QBm4tNiovXXiZtIAjLSZb7 MvnlFtJJ2BzMGh1OHzb6Lbvztb3hUbSv7hADn0hUlyP/blyyVb7pZB3LpTWD9OWsVqxGKwfpVF2qx wEQhNR6Vw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kamhq-0003u0-NZ; Thu, 05 Nov 2020 21:22:06 +0000 Received: from plasma4.jpberlin.de ([80.241.57.33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kamhc-0003p1-ED for linux-arm-kernel@lists.infradead.org; Thu, 05 Nov 2020 21:21:56 +0000 Received: from gerste.heinlein-support.de (gerste.heinlein-support.de [91.198.250.173]) by plasma.jpberlin.de (Postfix) with ESMTP id AAA2CABA75; Thu, 5 Nov 2020 22:21:49 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de Received: from plasma.jpberlin.de ([91.198.250.140]) by gerste.heinlein-support.de (gerste.heinlein-support.de [91.198.250.173]) (amavisd-new, port 10030) with ESMTP id egG-IPKffLbR; Thu, 5 Nov 2020 22:21:48 +0100 (CET) Received: from webmail.opensynergy.com (unknown [217.66.60.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (Client CN "*.opensynergy.com", Issuer "Starfield Secure Certificate Authority - G2" (not verified)) (Authenticated sender: opensynergy@jpberlin.de) by plasma.jpberlin.de (Postfix) with ESMTPSA id 74546AB986; Thu, 5 Nov 2020 22:21:48 +0100 (CET) From: Peter Hilber To: , Subject: [RFC PATCH v2 06/10] firmware: arm_scmi: Add optional link_supplier() transport op Date: Thu, 5 Nov 2020 22:21:12 +0100 Message-ID: <20201105212116.411422-7-peter.hilber@opensynergy.com> In-Reply-To: <20201105212116.411422-1-peter.hilber@opensynergy.com> References: <20201105212116.411422-1-peter.hilber@opensynergy.com> MIME-Version: 1.0 X-ClientProxiedBy: SR-MAIL-01.open-synergy.com (10.26.10.21) To SR-MAIL-01.open-synergy.com (10.26.10.21) X-MBO-SPAM-Probability: X-Rspamd-Score: -3.86 / 15.00 / 15.00 X-Rspamd-Queue-Id: AAA2CABA75 X-Rspamd-UID: ab3d6a X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201105_162152_588115_EC7E0356 X-CRM114-Status: GOOD ( 15.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jean-philippe@linaro.org, mikhail.golubev@opensynergy.com, souvik.chakravarty@arm.com, igor.skalkin@opensynergy.com, linux-kernel@vger.kernel.org, Rob Herring , Peter Hilber , anton.yakovlev@opensynergy.com, sudeep.holla@arm.com, alex.bennee@linaro.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org For the scmi-virtio transport, it might not be possible to refer to the proper virtio device at device tree build time. Therefore, add an op which will allow scmi-virtio to dynamically link to the proper virtio device during probe. Signed-off-by: Peter Hilber --- drivers/firmware/arm_scmi/common.h | 2 ++ drivers/firmware/arm_scmi/driver.c | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h index ae5db602e45d..2f55ac71555a 100644 --- a/drivers/firmware/arm_scmi/common.h +++ b/drivers/firmware/arm_scmi/common.h @@ -202,6 +202,7 @@ struct scmi_chan_info { /** * struct scmi_transport_ops - Structure representing a SCMI transport ops * + * @link_supplier: Optional callback to add link to a supplier device * @chan_available: Callback to check if channel is available or not * @chan_setup: Callback to allocate and setup a channel * @chan_free: Callback to free a channel @@ -217,6 +218,7 @@ struct scmi_chan_info { * @poll_done: Callback to poll transfer status */ struct scmi_transport_ops { + int (*link_supplier)(struct device *dev); bool (*chan_available)(struct device *dev, int idx); int (*chan_setup)(struct scmi_chan_info *cinfo, struct device *dev, bool tx); diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index d7ad5a77b9dc..dedc9b3f3e97 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -826,6 +826,12 @@ static int scmi_probe(struct platform_device *pdev) handle->dev = info->dev; handle->version = &info->version; + if (desc->ops->link_supplier) { + ret = desc->ops->link_supplier(dev); + if (ret) + return ret; + } + ret = scmi_txrx_setup(info, dev, SCMI_PROTOCOL_BASE); if (ret) return ret;