From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT 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 2CCA8C004C9 for ; Tue, 7 May 2019 08:14:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 02919214AE for ; Tue, 7 May 2019 08:14:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727324AbfEGIOd (ORCPT ); Tue, 7 May 2019 04:14:33 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:41778 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727241AbfEGIOW (ORCPT ); Tue, 7 May 2019 04:14:22 -0400 X-UUID: bd959553276b45819cab7a4f5bd2ca19-20190507 X-UUID: bd959553276b45819cab7a4f5bd2ca19-20190507 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1933250245; Tue, 07 May 2019 16:14:00 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 7 May 2019 16:13:59 +0800 Received: from mtkslt302.mediatek.inc (10.21.14.115) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 7 May 2019 16:13:59 +0800 From: Bibby Hsieh To: Jassi Brar , Matthias Brugger , Rob Herring , CK HU CC: Daniel Kurtz , Sascha Hauer , , , , , , Sascha Hauer , Philipp Zabel , Nicolas Boichat , Bibby Hsieh , YT Shen , Daoyuan Huang , Jiaguang Zhang , Dennis-YC Hsieh , Houlong Wei , , , Frederic Chen Subject: [PATCH v5 11/12] soc: mediatek: cmdq: add cmdq_dev_get_event function Date: Tue, 7 May 2019 16:13:54 +0800 Message-ID: <20190507081355.52630-12-bibby.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20190507081355.52630-1-bibby.hsieh@mediatek.com> References: <20190507081355.52630-1-bibby.hsieh@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-TM-SNTS-SMTP: D92EDB47A209A967D8D161E8C5204CD18762992545980573347E692AA8D164202000:8 X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When client ask gce to clear or wait for event, client need to pass event number to the API. We suggest client store the event information in device node, so we provide an API for client parse the event property. Signed-off-by: Bibby Hsieh --- drivers/soc/mediatek/mtk-cmdq-helper.c | 28 ++++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 12 +++++++++++ 2 files changed, 40 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 00636ec995e8..b44bce1f9159 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -52,6 +52,34 @@ struct cmdq_subsys *cmdq_dev_get_subsys(struct device *dev, int idx) } EXPORT_SYMBOL(cmdq_dev_get_subsys); +s32 cmdq_dev_get_event(struct device *dev, const char *name) +{ + s32 index = 0; + s32 result; + + if (!dev) + return -EINVAL; + + index = of_property_match_string(dev->of_node, + "mediatek,gce-event-names", name); + if (index < 0) { + dev_err(dev, "no gce-event-names property or no such event:%s", + name); + + return index; + } + + if (of_property_read_u32_index(dev->of_node, "mediatek,gce-events", + index, &result)) { + dev_err(dev, "can't parse gce-events property"); + + return -ENODEV; + } + + return result; +} +EXPORT_SYMBOL(cmdq_dev_get_event); + 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 574006c5cd76..15884354af20 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -160,4 +160,16 @@ int cmdq_pkt_flush(struct cmdq_pkt *pkt); */ struct cmdq_subsys *cmdq_dev_get_subsys(struct device *dev, int idx); +/** + * cmdq_dev_get_event() - parse event from the device node of CMDQ client + * @dev: device of CMDQ mailbox client + * @name: the name of desired event + * + * Return: CMDQ event number + * + * Help CMDQ client pasing the event number + * from the device node of CMDQ client. + */ +s32 cmdq_dev_get_event(struct device *dev, const char *name); + #endif /* __MTK_CMDQ_H__ */ -- 2.18.0