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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY, 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 81049C43381 for ; Wed, 6 Mar 2019 09:51:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5BFBC20661 for ; Wed, 6 Mar 2019 09:51:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729951AbfCFJu7 (ORCPT ); Wed, 6 Mar 2019 04:50:59 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:29190 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1729906AbfCFJu4 (ORCPT ); Wed, 6 Mar 2019 04:50:56 -0500 X-UUID: 6ea47da22e344777bfac4e6ac486ae40-20190306 X-UUID: 6ea47da22e344777bfac4e6ac486ae40-20190306 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1110594604; Wed, 06 Mar 2019 17:50:40 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n1.mediatek.inc (172.21.101.68) 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 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 v2 10/10] soc: mediatek: cmdq: add cmdq_dev_get_event function Date: Wed, 6 Mar 2019 17:50:35 +0800 Message-ID: <1551865835-50974-11-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 Content-Type: text/plain 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 | 32 ++++++++++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 12 ++++++++++++ 2 files changed, 44 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 0a9609e..ab49673 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -71,6 +71,38 @@ 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; + struct of_phandle_args spec; + 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_parse_phandle_with_args(dev->of_node, "mediatek,gce-events", + "#event-cells", index, &spec)) { + dev_err(dev, "can't parse gce-events property"); + + return -ENODEV; + } + + result = spec.args[0]; + of_node_put(spec.np); + + 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 e39ba1e..2abfb45 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -159,4 +159,16 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb, */ 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__ */ -- 1.9.1