linux-kernel - Re: [PATCH v4 3/3] soc: mediatek: cmdq: Remove cmdq_pkt

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Message-ID: <f6566469-36fe-4cf8-b1c1-4a476e5c5645@gmail.com>
Date: Mon, 2 Sep 2024 17:31:52 +0200
From: Matthias Brugger <matthias.bgg@...il.com>
To: Chun-Kuang Hu <chunkuang.hu@...nel.org>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, Moudy Ho
 <moudy.ho@...iatek.com>, "Jason-JH . Lin" <jason-jh.lin@...iatek.com>,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 linux-media@...r.kernel.org
Subject: Re: [PATCH v4 3/3] soc: mediatek: cmdq: Remove cmdq_pkt_finalize()
 helper function



On 01/09/2024 16:32, Chun-Kuang Hu wrote:
> In order to have fine-grained control, use cmdq_pkt_eoc() and
> cmdq_pkt_jump_rel() to replace cmdq_pkt_finalize().
> 
> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>

Acked-by: Matthias Brugger <matthias.bgg@...il.com>

> ---
>   drivers/soc/mediatek/mtk-cmdq-helper.c | 22 ----------------------
>   include/linux/soc/mediatek/mtk-cmdq.h  | 13 -------------
>   2 files changed, 35 deletions(-)
> 
> diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> index a8fccedba83f..2a47dda4dd4a 100644
> --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> @@ -538,27 +538,5 @@ int cmdq_pkt_eoc(struct cmdq_pkt *pkt)
>   }
>   EXPORT_SYMBOL(cmdq_pkt_eoc);
>   
> -int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
> -{
> -	struct cmdq_instruction inst = { {0} };
> -	int err;
> -
> -	/* insert EOC and generate IRQ for each command iteration */
> -	inst.op = CMDQ_CODE_EOC;
> -	inst.value = CMDQ_EOC_IRQ_EN;
> -	err = cmdq_pkt_append_command(pkt, inst);
> -	if (err < 0)
> -		return err;
> -
> -	/* JUMP to end */
> -	inst.op = CMDQ_CODE_JUMP;
> -	inst.value = CMDQ_JUMP_PASS >>
> -		cmdq_get_shift_pa(((struct cmdq_client *)pkt->cl)->chan);
> -	err = cmdq_pkt_append_command(pkt, inst);
> -
> -	return err;
> -}
> -EXPORT_SYMBOL(cmdq_pkt_finalize);
> -
>   MODULE_DESCRIPTION("MediaTek Command Queue (CMDQ) driver");
>   MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
> index 5bee6f7fc400..0c3906e8ad19 100644
> --- a/include/linux/soc/mediatek/mtk-cmdq.h
> +++ b/include/linux/soc/mediatek/mtk-cmdq.h
> @@ -391,14 +391,6 @@ int cmdq_pkt_jump_rel(struct cmdq_pkt *pkt, s32 offset, u8 shift_pa);
>    */
>   int cmdq_pkt_eoc(struct cmdq_pkt *pkt);
>   
> -/**
> - * cmdq_pkt_finalize() - Append EOC and jump command to pkt.
> - * @pkt:	the CMDQ packet
> - *
> - * Return: 0 for success; else the error code is returned
> - */
> -int cmdq_pkt_finalize(struct cmdq_pkt *pkt);
> -
>   #else /* IS_ENABLED(CONFIG_MTK_CMDQ) */
>   
>   static inline int cmdq_dev_get_client_reg(struct device *dev,
> @@ -519,11 +511,6 @@ static inline int cmdq_pkt_eoc(struct cmdq_pkt *pkt)
>   	return -EINVAL;
>   }
>   
> -static inline int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
> -{
> -	return -EINVAL;
> -}
> -
>   #endif /* IS_ENABLED(CONFIG_MTK_CMDQ) */
>   
>   #endif	/* __MTK_CMDQ_H__ */