Hi, Yongqiang:
On Thu, 2022-01-20 at 15:43 +0800, Yongqiang Niu wrote:
> From: mtk18742
>
> add cmdq_pkt_poll_addr function in cmdq helper functions
>
> Signed-off-by: Yongqiang Niu
> ---
> drivers/soc/mediatek/mtk-cmdq-helper.c | 39
>
> include/linux/mailbox/mtk-cmdq-mailbox.h | 1 +
> include/linux/soc/mediatek/mtk-cmdq.h| 2 ++
> 3 files changed, 42 insertions(+)
>
> diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c
> b/drivers/soc/mediatek/mtk-cmdq-helper.c
> index 3c8e4212d941..6c5cfb284140 100644
> --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> @@ -344,6 +344,45 @@ int cmdq_pkt_set_event(struct cmdq_pkt *pkt, u16
> event)
> }
> EXPORT_SYMBOL(cmdq_pkt_set_event);
>
> +s32 cmdq_pkt_poll_addr(struct cmdq_pkt *pkt, u32 value, u32 addr,
> u32 mask, u8 reg_gpr)
> +{
> + struct cmdq_instruction inst = { {0} };
> +
> + s32 err;
> +
> + if (mask != 0x) {
> + inst.op = CMDQ_CODE_MASK;
> + inst.mask = ~mask;
> + err = cmdq_pkt_append_command(pkt, inst);
> + if (err != 0)
> + return err;
> +
> + addr = addr | 0x1;
> + }
> +
> + /* Move extra handle APB address to GPR */
> + inst.op = CMDQ_CODE_MOVE;
> + inst.value = addr;
> + inst.sop = reg_gpr;
> + inst.dst_t = 1;
> + err = cmdq_pkt_append_command(pkt, inst);
> + if (err != 0)
> + pr_err("%s fail append command move addr to reg
> err:%d",
> + __func__, err);
cmdq_pkt_assign() could assign a value to GPR, so remove this part.
> +
> + inst.op = CMDQ_CODE_POLL;
> + inst.value = value;
> + inst.sop = reg_gpr;
> + inst.dst_t = 1;
> + err = cmdq_pkt_append_command(pkt, inst);
> + if (err != 0)
> + pr_err("%s fail append command poll err:%d",
> + __func__, err);
> +
> + return err;
> +}
> +EXPORT_SYMBOL(cmdq_pkt_poll_addr);
> +
> 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 44365aab043c..a27329fd7c7f 100644
> --- a/include/linux/mailbox/mtk-cmdq-mailbox.h
> +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
> @@ -54,6 +54,7 @@
> */
> enum cmdq_code {
> CMDQ_CODE_MASK = 0x02,
> + CMDQ_CODE_MOVE = 0x02,
> CMDQ_CODE_WRITE = 0x04,
> CMDQ_CODE_POLL = 0x08,
> CMDQ_CODE_JUMP = 0x10,
> diff --git a/include/linux/soc/mediatek/mtk-cmdq.h
> b/include/linux/soc/mediatek/mtk-cmdq.h
> index ac6b5f3cba95..28dc5ce0ff03 100644
> --- a/include/linux/soc/mediatek/mtk-cmdq.h
> +++ b/include/linux/soc/mediatek/mtk-cmdq.h
> @@ -280,4 +280,6 @@ int cmdq_pkt_finalize(struct cmdq_pkt *pkt);
> int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb
> cb,
>void *data);
>
Add comment for this function, parameters, and return value like other
interface.
Regards,
CK
> +s32 cmdq_pkt_poll_addr(struct cmdq_pkt *pkt, u32 value, u32 addr,
> u32 mask, u8 reg_gpr);
> +
> #endif /* __MTK_CMDQ_H__ */
