From patchwork Mon Aug 19 02:53:58 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibby Hsieh X-Patchwork-Id: 11100189 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5FD881395 for ; Mon, 19 Aug 2019 02:57:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5011027CAF for ; Mon, 19 Aug 2019 02:57:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4372828573; Mon, 19 Aug 2019 02:57:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id DDE4327CAF for ; Mon, 19 Aug 2019 02:57:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.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=UZ3oAKGoUb5z8Ky9AhJzp1EYalzHgDJDSoaJY3coiNI=; b=d93bC6WQ6A1ZN1 gTPNswl9k06axXH6jW9dpkLkVa/WpOT8zK+gmBw6YY71hsgOCdESF08V2firpDeSgPM2JhLfDgndJ eOYyu4GR5RQNCvgX0iTQaBD4C3GlzAuuhMn9eA/2Q57KSRcwMX7D7htVAe2EVNhFBOwGS8rk1bp6A /tny60NAwE7lWmzjoFgHsqR7vCA5dc7mprjtuwrJ91wewPtT2ZXipkZJ1rY61Ejt0QJzXmD2hiSWX +LEqDNZ7ylQNeu7HMRgbbbmFsPJjiPzioDmbtwc9id7mGm1hPwtZyd4cZitp4dEzafaBFz+zHud/7 lI1V0kfKoTY2nHM4xkAw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hzXrN-0004bz-HB; Mon, 19 Aug 2019 02:57:29 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hzXow-00013d-HO; Mon, 19 Aug 2019 02:55:00 +0000 X-UUID: 4c27bc216035434d91d9727cb2ed2d00-20190818 X-UUID: 4c27bc216035434d91d9727cb2ed2d00-20190818 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 558385053; Sun, 18 Aug 2019 18:54:33 -0800 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 18 Aug 2019 19:54:24 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 19 Aug 2019 10:54:03 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 19 Aug 2019 10:54:03 +0800 From: Bibby Hsieh To: Jassi Brar , Matthias Brugger , Rob Herring , CK HU Subject: [PATCH v12 11/12] soc: mediatek: cmdq: add cmdq_dev_get_client_reg function Date: Mon, 19 Aug 2019 10:53:58 +0800 Message-ID: <20190819025359.11381-12-bibby.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20190819025359.11381-1-bibby.hsieh@mediatek.com> References: <20190819025359.11381-1-bibby.hsieh@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190818_195458_789170_0D599775 X-CRM114-Status: GOOD ( 11.55 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Nicolas Boichat , Philipp Zabel , srv_heupstream@mediatek.com, Daoyuan Huang , Sascha Hauer , linux-kernel@vger.kernel.org, Dennis-YC Hsieh , linux-mediatek@lists.infradead.org, Houlong Wei , Sascha Hauer , Jiaguang Zhang , Bibby Hsieh , linux-arm-kernel@lists.infradead.org, ginny.chen@mediatek.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP GCE cannot know the register base address, this function can help cmdq client to get the cmdq_client_reg structure. Signed-off-by: Bibby Hsieh Reviewed-by: CK Hu --- drivers/soc/mediatek/mtk-cmdq-helper.c | 29 ++++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 21 +++++++++++++++++++ 2 files changed, 50 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 340a92a254e5..1bed07362b7a 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -27,6 +27,35 @@ struct cmdq_instruction { u8 op; }; +int cmdq_dev_get_client_reg(struct device *dev, + struct cmdq_client_reg *client_reg, int idx) +{ + struct of_phandle_args spec; + int err; + + if (!client_reg) + return -ENOENT; + + err = of_parse_phandle_with_fixed_args(dev->of_node, + "mediatek,gce-client-reg", + 3, idx, &spec); + if (err < 0) { + dev_err(dev, + "error %d can't parse gce-client-reg property (%d)", + err, idx); + + return err; + } + + client_reg->subsys = (u8)spec.args[0]; + client_reg->offset = (u16)spec.args[1]; + client_reg->size = (u16)spec.args[2]; + of_node_put(spec.np); + + return 0; +} +EXPORT_SYMBOL(cmdq_dev_get_client_reg); + static void cmdq_client_timeout(struct timer_list *t) { struct cmdq_client *client = from_timer(client, t, timer); diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index a345870a6d10..6215d4fc4ba3 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -15,6 +15,12 @@ struct cmdq_pkt; +struct cmdq_client_reg { + u8 subsys; + u16 offset; + u16 size; +}; + struct cmdq_client { spinlock_t lock; u32 pkt_cnt; @@ -24,6 +30,21 @@ struct cmdq_client { u32 timeout_ms; /* in unit of microsecond */ }; +/** + * cmdq_dev_get_client_reg() - parse cmdq client reg from the device + * node of CMDQ client + * @dev: device of CMDQ mailbox clienti + * @client_reg: CMDQ client reg pointer + * @idx: the index of desired reg + * + * Return: 0 for success; else the error code is returned + * + * Help CMDQ client pasing the cmdq client reg + * from the device node of CMDQ client. + */ +int cmdq_dev_get_client_reg(struct device *dev, + struct cmdq_client_reg *client_reg, int idx); + /** * cmdq_mbox_create() - create CMDQ mailbox client and channel * @dev: device of CMDQ mailbox client