From patchwork Tue May 21 01:11:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibby Hsieh X-Patchwork-Id: 10952791 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 3B46E912 for ; Tue, 21 May 2019 01:13:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2A42A28901 for ; Tue, 21 May 2019 01:13:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1DD9528925; Tue, 21 May 2019 01:13:49 +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=unavailable 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 C931E28901 for ; Tue, 21 May 2019 01:13:48 +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=pnaFlk1FekB0S+A1kWzCMJGJ6a9MOFFhFmHcCOMPz+o=; b=F9NQCOYFH/xqwB +rkwB0DFTKX4kCagU1U746OuVOXLXSKcp3r6sLIcyutP2ZLJQr4otrgR8TvhBGmcziWWLdzDyHvVB qd5JAsT+XQhZCuSa6SysyGwkJ0qmnAvPKC82w5K8bRfzEqJ1skLNjMIs+NjxLq9UrB/2f5Ah3WG+R hgbRE9p2dAVnCC0fRil0fv5zjsEdpfDKugyFDzCkT+hoxLmV9i08+AnNfgDRKL5M9khzgLEODBBhb hbfQd5zJ9pxaBHHkeu3NO6ArptpfYtZl5+Aepi/sHxSYreHkTg4+KCZudbedpZKQSkDDm+Lsm6g/9 TVuB9ka7+sJGD1tJ0jLg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hStLV-0006GH-Eb; Tue, 21 May 2019 01:13:37 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hStJl-00041L-W3; Tue, 21 May 2019 01:12:03 +0000 X-UUID: 0f2b2ecf5a8840149db05e46ca355457-20190520 X-UUID: 0f2b2ecf5a8840149db05e46ca355457-20190520 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1528710066; Mon, 20 May 2019 17:11:20 -0800 Received: from mtkmbs03n2.mediatek.inc (172.21.101.182) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 20 May 2019 18:11:19 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs03n2.mediatek.inc (172.21.101.182) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 21 May 2019 09:11:12 +0800 Received: from mtkslt302.mediatek.inc (10.21.14.115) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 21 May 2019 09:11:12 +0800 From: Bibby Hsieh To: Jassi Brar , Matthias Brugger , Rob Herring , CK HU Subject: [PATCH v7 11/12] soc: mediatek: cmdq: add cmdq_dev_get_client_reg function Date: Tue, 21 May 2019 09:11:07 +0800 Message-ID: <20190521011108.40428-12-bibby.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20190521011108.40428-1-bibby.hsieh@mediatek.com> References: <20190521011108.40428-1-bibby.hsieh@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: EB31BCC285E1AB052BEA5788C4AF42BA4F51DFC824E3E5B86A20834AD3655F012000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190520_181150_454275_8B14D3C0 X-CRM114-Status: GOOD ( 10.71 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 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 --- drivers/soc/mediatek/mtk-cmdq-helper.c | 25 +++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 18 ++++++++++++++++++ 2 files changed, 43 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 70ad4d806fac..815845bb5982 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -27,6 +27,31 @@ struct cmdq_instruction { u8 op; }; +struct cmdq_client_reg *cmdq_dev_get_client_reg(struct device *dev, int idx) +{ + struct cmdq_client_reg *client_reg; + struct of_phandle_args spec; + + client_reg = devm_kzalloc(dev, sizeof(*client_reg), GFP_KERNEL); + if (!client_reg) + return NULL; + + if (of_parse_phandle_with_args(dev->of_node, "mediatek,gce-client-reg", + "#subsys-cells", idx, &spec)) { + dev_err(dev, "can't parse gce-client-reg property (%d)", idx); + + return NULL; + } + + client_reg->subsys = spec.args[0]; + client_reg->offset = spec.args[1]; + client_reg->size = spec.args[2]; + of_node_put(spec.np); + + return client_reg; +} +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..d0dea3780f7a 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; @@ -142,4 +148,16 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb, */ int cmdq_pkt_flush(struct cmdq_pkt *pkt); +/** + * cmdq_dev_get_client_reg() - parse cmdq client reg from the device node of CMDQ client + * @dev: device of CMDQ mailbox client + * @idx: the index of desired reg + * + * Return: CMDQ client reg pointer + * + * Help CMDQ client pasing the cmdq client reg + * from the device node of CMDQ client. + */ +struct cmdq_client_reg *cmdq_dev_get_client_reg(struct device *dev, int idx); + #endif /* __MTK_CMDQ_H__ */