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    Subject[PATCH v5 13/13] soc: mediatek: cmdq: add set event function
    Date
    Add set event function in cmdq helper functions to set specific event.

    Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
    Reviewed-by: CK Hu <ck.hu@mediatek.com>
    ---
    drivers/soc/mediatek/mtk-cmdq-helper.c | 15 +++++++++++++++
    include/linux/mailbox/mtk-cmdq-mailbox.h | 1 +
    include/linux/soc/mediatek/mtk-cmdq.h | 9 +++++++++
    3 files changed, 25 insertions(+)

    diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
    index ec5637d43254..3294c9285994 100644
    --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
    +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
    @@ -327,6 +327,21 @@ int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event)
    }
    EXPORT_SYMBOL(cmdq_pkt_clear_event);

    +int cmdq_pkt_set_event(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_UPDATE | CMDQ_WFE_UPDATE_VALUE;
    + inst.event = event;
    +
    + return cmdq_pkt_append_command(pkt, inst);
    +}
    +EXPORT_SYMBOL(cmdq_pkt_set_event);
    +
    int cmdq_pkt_poll(struct cmdq_pkt *pkt, u8 subsys,
    u16 offset, u32 value)
    {
    diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
    index 42d2a30e6a70..ba2d811183a9 100644
    --- a/include/linux/mailbox/mtk-cmdq-mailbox.h
    +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
    @@ -17,6 +17,7 @@
    #define CMDQ_JUMP_PASS CMDQ_INST_SIZE

    #define CMDQ_WFE_UPDATE BIT(31)
    +#define CMDQ_WFE_UPDATE_VALUE BIT(16)
    #define CMDQ_WFE_WAIT BIT(15)
    #define CMDQ_WFE_WAIT_VALUE 0x1

    diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
    index d63749440697..ca70296ae120 100644
    --- a/include/linux/soc/mediatek/mtk-cmdq.h
    +++ b/include/linux/soc/mediatek/mtk-cmdq.h
    @@ -168,6 +168,15 @@ int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event, bool clear);
    */
    int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event);

    +/**
    + * cmdq_pkt_set_event() - append set event command to the CMDQ packet
    + * @pkt: the CMDQ packet
    + * @event: the desired event to be set
    + *
    + * Return: 0 for success; else the error code is returned
    + */
    +int cmdq_pkt_set_event(struct cmdq_pkt *pkt, u16 event);
    +
    /**
    * cmdq_pkt_poll() - Append polling command to the CMDQ packet, ask GCE to
    * execute an instruction that wait for a specified
    --
    2.18.0
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