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Lin" , Singo Chang , Nancy Lin , Shawn Sung , , , , , , Subject: [PATCH 06/15] mailbox: mediatek: Add cmdq_mbox_stop to disable GCE thread Date: Tue, 19 Sep 2023 03:21:55 +0800 Message-ID: <20230918192204.32263-7-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230918192204.32263-1-jason-jh.lin@mediatek.com> References: <20230918192204.32263-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--1.988300-8.000000 X-TMASE-MatchedRID: uVuWzlu52RkiDrsceLMV4Q5KPhGIg0MRkKAa/khZ3iTFJnEpmt9OExFx R5JQAS6O09NQNrxIpFYBtjkcfRMmqTWBtSWZ+bE6ngIgpj8eDcAZ1CdBJOsoY8RB0bsfrpPIcSq bxBgG0w6ujTD8QgIK1kQ6fjiZXZogD+jiC1oMBt0eayzllU2Q/1TJDW/3g1sVmnNXN2Yg01ZCSb LlGtGkW7KHfI39uPZVtH1PlKbdBAd5lSmbrC6fdtr/To2FgNrjDLMIOOVTHz12N6Rg5qIpOg== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--1.988300-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 27B40605C2A0C3207783487520CC4AA9778409CD16F2F742F472B934C2B6A9CD2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230918_122217_891866_5AC1D168 X-CRM114-Status: GOOD ( 10.50 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add cmdq_mbox_stop to disable GCE thread. To support the error handling or the stop flow of the GCE loopping thread, lopping thread user can call cmdq_mbox_stop to disable the GCE HW thread. Signed-off-by: Jason-JH.Lin --- drivers/mailbox/mtk-cmdq-mailbox.c | 6 ++++++ include/linux/mailbox/mtk-cmdq-mailbox.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index 4d62b07c1411..8bd39fecbf00 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -469,6 +469,12 @@ static void cmdq_mbox_shutdown(struct mbox_chan *chan) spin_unlock_irqrestore(&thread->chan->lock, flags); } +void cmdq_mbox_stop(struct mbox_chan *chan) +{ + cmdq_mbox_shutdown(chan); +} +EXPORT_SYMBOL(cmdq_mbox_stop); + static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout) { struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv; diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index a8f0070c7aa9..f3e577335acb 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -79,5 +79,6 @@ struct cmdq_pkt { }; u8 cmdq_get_shift_pa(struct mbox_chan *chan); +void cmdq_mbox_stop(struct mbox_chan *chan); #endif /* __MTK_CMDQ_MAILBOX_H__ */