linux-kernel - Re: [PATCH v7 07/12] soc: mediatek: cmdq: reorder the parameter

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Date:   Tue, 21 May 2019 10:28:37 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     Bibby Hsieh <bibby.hsieh@...iatek.com>
CC:     Jassi Brar <jassisinghbrar@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Daniel Kurtz <djkurtz@...omium.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>,
        Sascha Hauer <kernel@...gutronix.de>,
        "Philipp Zabel" <p.zabel@...gutronix.de>,
        Nicolas Boichat <drinkcat@...omium.org>,
        "YT Shen" <yt.shen@...iatek.com>,
        Daoyuan Huang <daoyuan.huang@...iatek.com>,
        Jiaguang Zhang <jiaguang.zhang@...iatek.com>,
        Dennis-YC Hsieh <dennis-yc.hsieh@...iatek.com>,
        Houlong Wei <houlong.wei@...iatek.com>,
        <ginny.chen@...iatek.com>
Subject: Re: [PATCH v7 07/12] soc: mediatek: cmdq: reorder the parameter

Hi, Bibby:

On Tue, 2019-05-21 at 09:11 +0800, Bibby Hsieh wrote:
> The order of instructions gce knowed is [subsys offset value]
> so reorder the parameter of cmdq_pkt_write_mask
> and cmdq_pkt_write function.
> 

Except the word 'knowed',

Reviewed-by: CK Hu <ck.hu@...iatek.com>

> Signed-off-by: Bibby Hsieh <bibby.hsieh@...iatek.com>
> ---
>  drivers/soc/mediatek/mtk-cmdq-helper.c |  6 +++---
>  include/linux/soc/mediatek/mtk-cmdq.h  | 10 +++++-----
>  2 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> index ff9fef5a032b..082b8978651e 100644
> --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> @@ -136,7 +136,7 @@ static int cmdq_pkt_append_command(struct cmdq_pkt *pkt, enum cmdq_code code,
>  	return 0;
>  }
>  
> -int cmdq_pkt_write(struct cmdq_pkt *pkt, u32 value, u32 subsys, u32 offset)
> +int cmdq_pkt_write(struct cmdq_pkt *pkt, u32 subsys, u32 offset, u32 value)
>  {
>  	u32 arg_a = (offset & CMDQ_ARG_A_WRITE_MASK) |
>  		    (subsys << CMDQ_SUBSYS_SHIFT);
> @@ -145,8 +145,8 @@ int cmdq_pkt_write(struct cmdq_pkt *pkt, u32 value, u32 subsys, u32 offset)
>  }
>  EXPORT_SYMBOL(cmdq_pkt_write);
>  
> -int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u32 value,
> -			u32 subsys, u32 offset, u32 mask)
> +int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u32 subsys,
> +			u32 offset, u32 value, u32 mask)
>  {
>  	u32 offset_mask = offset;
>  	int err = 0;
> diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
> index 4e8899972db4..39d813dde4b4 100644
> --- a/include/linux/soc/mediatek/mtk-cmdq.h
> +++ b/include/linux/soc/mediatek/mtk-cmdq.h
> @@ -60,26 +60,26 @@ void cmdq_pkt_destroy(struct cmdq_pkt *pkt);
>  /**
>   * cmdq_pkt_write() - append write command to the CMDQ packet
>   * @pkt:	the CMDQ packet
> - * @value:	the specified target register value
>   * @subsys:	the CMDQ sub system code
>   * @offset:	register offset from CMDQ sub system
> + * @value:	the specified target register value
>   *
>   * Return: 0 for success; else the error code is returned
>   */
> -int cmdq_pkt_write(struct cmdq_pkt *pkt, u32 value, u32 subsys, u32 offset);
> +int cmdq_pkt_write(struct cmdq_pkt *pkt, u32 subsys, u32 offset, u32 value);
>  
>  /**
>   * cmdq_pkt_write_mask() - append write command with mask to the CMDQ packet
>   * @pkt:	the CMDQ packet
> - * @value:	the specified target register value
>   * @subsys:	the CMDQ sub system code
>   * @offset:	register offset from CMDQ sub system
> + * @value:	the specified target register value
>   * @mask:	the specified target register mask
>   *
>   * Return: 0 for success; else the error code is returned
>   */
> -int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u32 value,
> -			u32 subsys, u32 offset, u32 mask);
> +int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u32 subsys,
> +			u32 offset, u32 value, u32 mask);
>  
>  /**
>   * cmdq_pkt_wfe() - append wait for event command to the CMDQ packet