From patchwork Wed Mar 6 09:50:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibby Hsieh X-Patchwork-Id: 10840731 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 A4F91922 for ; Wed, 6 Mar 2019 09:51:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8C2332D429 for ; Wed, 6 Mar 2019 09:51:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 801662D449; Wed, 6 Mar 2019 09:51:26 +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 23E2E2D429 for ; Wed, 6 Mar 2019 09:51:26 +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=ZxHwdyVXuzgbTXKryPgpnACAnugSECK0jQRMNOoJvf0=; b=mIrAOYS6SPpX6+ JxOsVIRAVfYXj68iGU4OKa+WhGOjg7BnvLINvFwgBtzNT42mWNIGzna+1NjtDpI4RskuEn0Ay+BFd M1vvZQUobSN3hCdTZFn36aQE4qWgFR6Eyz6nx3pWo9RcB/la8kpFJMZl9hIMEbnTh1rio8JgHK0M1 8aoWIGzompxu/AE+kkI3DxbYMAjaQ5BSuUE1BcbI6UOOtuaSZfFzIVchRAAn2rlas37jg6/UQe2Dm wYY2Wl5gnV5gwUv1pdHUT8dML6ENuik3Qm23xLQ0bSJ2JdR7eAVMdWdGGLm6Gp5IkHawsy5GNjfkj CcMutD/MMKGXlfUXdKuA==; 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 1h1TCn-0004PV-3A; Wed, 06 Mar 2019 09:51:17 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h1TCK-0003mV-Mv; Wed, 06 Mar 2019 09:50:51 +0000 X-UUID: 4631fe906ee244fa939d9cb736852155-20190306 X-UUID: 4631fe906ee244fa939d9cb736852155-20190306 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 575213902; Wed, 06 Mar 2019 01:50:42 -0800 Received: from MTKMBS01N2.mediatek.inc (172.21.101.79) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 6 Mar 2019 01:50:41 -0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 6 Mar 2019 17:50:38 +0800 Received: from mtkslt302.mediatek.inc (10.21.14.115) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 6 Mar 2019 17:50:38 +0800 From: Bibby Hsieh To: Jassi Brar , Matthias Brugger , Rob Herring , CK HU Subject: [PATCH v2 09/10] soc: mediatek: cmdq: add cmdq_dev_get_subsys function Date: Wed, 6 Mar 2019 17:50:34 +0800 Message-ID: <1551865835-50974-10-git-send-email-bibby.hsieh@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1551865835-50974-1-git-send-email-bibby.hsieh@mediatek.com> References: <1551865835-50974-1-git-send-email-bibby.hsieh@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 0339FA3E0697B5AC9FCBD590B6EB3B6CAB800BEDB065A04D5FD9D286EC7D6D9F2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190306_015048_752178_29A21567 X-CRM114-Status: GOOD ( 11.27 ) 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 , kendrick.hsu@mediatek.com, linux-mediatek@lists.infradead.org, Houlong Wei , Sascha Hauer , Frederic Chen , 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 relationship of subsys and register base address. Signed-off-by: Bibby Hsieh --- drivers/soc/mediatek/mtk-cmdq-helper.c | 24 ++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 17 +++++++++++++++++ 2 files changed, 41 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 71c167c..0a9609e 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -47,6 +47,30 @@ static void cmdq_pkt_instr_encoder(struct cmdq_pkt *pkt, s16 arg_c, s16 arg_b, pkt->cmd_buf_size += CMDQ_INST_SIZE; } +struct cmdq_subsys *cmdq_dev_get_subsys(struct device *dev, int idx) +{ + struct cmdq_subsys *subsys; + struct of_phandle_args spec; + + subsys = devm_kzalloc(dev, sizeof(*subsys), GFP_KERNEL); + if (!subsys) + return NULL; + + if (of_parse_phandle_with_args(dev->of_node, "mediatek,gce-subsys", + "#subsys-cells", idx, &spec)) { + dev_err(dev, "can't parse gce-subsys property"); + + return -ENODEV; + } + + subsys->base = spec.args[0]; + subsys->id = spec.args[1]; + of_node_put(spec.np); + + return subsys; +} +EXPORT_SYMBOL(cmdq_dev_get_subsys); + 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 0651a0b..e39ba1e 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -15,6 +15,11 @@ struct cmdq_pkt; +struct cmdq_subsys { + u32 base; + u8 id; +}; + struct cmdq_client { spinlock_t lock; u32 pkt_cnt; @@ -142,4 +147,16 @@ 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_subsys() - parse sub system from the device node of CMDQ client + * @dev: device of CMDQ mailbox client + * @idx: the index of desired subsys + * + * Return: CMDQ subsys pointer + * + * Help CMDQ client pasing the sub system number + * from the device node of CMDQ client. + */ +struct cmdq_subsys *cmdq_dev_get_subsys(struct device *dev, int idx); + #endif /* __MTK_CMDQ_H__ */