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Tue, 26 Nov 2019 17:59:13 -0800 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 26 Nov 2019 17:59:45 -0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 27 Nov 2019 09:59:02 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 27 Nov 2019 09:58:20 +0800 From: Dennis YC Hsieh To: Rob Herring , Matthias Brugger , Jassi Brar Subject: [PATCH v2 13/14] soc: mediatek: cmdq: add wait no clear event function Date: Wed, 27 Nov 2019 09:58:56 +0800 Message-ID: <1574819937-6246-15-git-send-email-dennis-yc.hsieh@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1574819937-6246-1-git-send-email-dennis-yc.hsieh@mediatek.com> References: <1574819937-6246-1-git-send-email-dennis-yc.hsieh@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191126_175918_181580_8527F39C X-CRM114-Status: GOOD ( 10.49 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 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, wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, Houlong Wei , Dennis YC Hsieh , linux-mediatek@lists.infradead.org, Bibby Hsieh , CK Hu , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add wait no clear event function in cmdq helper functions to wait specific event without clear to 0 after receive it. Signed-off-by: Dennis YC Hsieh --- drivers/soc/mediatek/mtk-cmdq-helper.c | 15 +++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 10 ++++++++++ 2 files changed, 25 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 10a9b4481e58..6f270fadfb50 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -330,6 +330,21 @@ int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event) } EXPORT_SYMBOL(cmdq_pkt_wfe); +int cmdq_pkt_wait_no_clear(struct cmdq_pkt *pkt, u16 event) +{ + struct cmdq_instruction inst = { {0} }; + + if (event >= CMDQ_MAX_EVENT) + return -EINVAL; + + inst.op = CMDQ_CODE_WFE; + inst.value = CMDQ_WFE_WAIT | CMDQ_WFE_WAIT_VALUE; + inst.event = event; + + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_wait_no_clear); + int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event) { struct cmdq_instruction inst = { {0} }; diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index d15d8c941992..40bc61ad8d31 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -149,6 +149,16 @@ int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, dma_addr_t addr, */ int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event); +/** + * cmdq_pkt_wait_no_clear() - Append wait for event command to the CMDQ packet, + * without update event to 0 after receive it. + * @pkt: the CMDQ packet + * @event: the desired event type to wait + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_wait_no_clear(struct cmdq_pkt *pkt, u16 event); + /** * cmdq_pkt_clear_event() - append clear event command to the CMDQ packet * @pkt: the CMDQ packet