From patchwork Mon Jul 1 07:48:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibby Hsieh X-Patchwork-Id: 11025193 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 BA63A13BD for ; Mon, 1 Jul 2019 07:51:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BA33C28511 for ; Mon, 1 Jul 2019 07:51:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ADF9728516; Mon, 1 Jul 2019 07:51:48 +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 5985928511 for ; Mon, 1 Jul 2019 07:51:48 +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=imXX+BAKPQ/ZIMwQQ0aqTddQfUkul0Erje5XOChrkSI=; b=PToTeNwqouHnVr 4q41p7E7op8TNEIJwmb81jni4hpEJlUkjf3qLvsjAMYQu40V2yV/sGA0SEwuYa3TshOxJzFxKCGI+ wL9ehS8ETTeIbg/ztGErH+v5AGdgtBAw52wKAMsf20oxspPKfLO+55yVyhQpOPuEiiPNNaVlu0kDM r97u0NiKGFZjykWVaqJ1yq2NnrQZ8UCuHH9UxzIb0TGWcmi3m0fQkGzq6VCcInkIAnEKyEelmZQjr yx52pce780AV3zoDQBJk27mcoPl7bQ766C99zOlwyixX7RuLM5a2jEB65yq4r9A6lwNbKg+a+WVTw VlmVvAO5FTHD9NgwdcaQ==; 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 1hhr6F-0000ZR-2V; Mon, 01 Jul 2019 07:51:43 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hhr3h-0005nq-OS; Mon, 01 Jul 2019 07:49:07 +0000 X-UUID: 7ecd9613faa94407a9d5789af0b79349-20190630 X-UUID: 7ecd9613faa94407a9d5789af0b79349-20190630 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 135606695; Sun, 30 Jun 2019 23:48:48 -0800 Received: from MTKMBS02N2.mediatek.inc (172.21.101.101) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 1 Jul 2019 00:48:48 -0700 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 1 Jul 2019 15:48:45 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 1 Jul 2019 15:48:45 +0800 From: Bibby Hsieh To: Jassi Brar , Matthias Brugger , Rob Herring , CK HU Subject: [PATCH v10 11/12] soc: mediatek: cmdq: add cmdq_dev_get_client_reg function Date: Mon, 1 Jul 2019 15:48:41 +0800 Message-ID: <20190701074842.15401-12-bibby.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20190701074842.15401-1-bibby.hsieh@mediatek.com> References: <20190701074842.15401-1-bibby.hsieh@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: EC1B146BD69580DEC6F0B29093304AD6A7722C24DD9950FCD53F4D29D1CFFEBD2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190701_004905_811360_048279CD X-CRM114-Status: GOOD ( 10.66 ) 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: devicetree@vger.kernel.org, Nicolas Boichat , Philipp Zabel , srv_heupstream@mediatek.com, Daoyuan Huang , Sascha Hauer , linux-kernel@vger.kernel.org, Daniel Kurtz , Dennis-YC Hsieh , linux-mediatek@lists.infradead.org, Houlong Wei , Sascha Hauer , YT Shen , Jiaguang Zhang , Bibby Hsieh , linux-arm-kernel@lists.infradead.org, ginny.chen@mediatek.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=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 | 28 ++++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 21 +++++++++++++++++++ 2 files changed, 49 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 70ad4d806fac..ad52ac3ccfbb 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -27,6 +27,34 @@ 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_args(dev->of_node, "mediatek,gce-client-reg", + "#subsys-cells", 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 = spec.args[0]; + client_reg->offset = spec.args[1]; + client_reg->size = 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..be402c4c740e 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 +148,19 @@ 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 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); + #endif /* __MTK_CMDQ_H__ */