linux-kernel - Re: [PATCH v10, 1/4] mailbox: mtk-cmdq: Use GCE_CTRL_BY

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Date:   Tue, 18 Oct 2022 05:23:05 +0000
From:   CK Hu (胡俊光) <ck.hu@...iatek.com>
To:     Yongqiang Niu (牛永强) 
        <yongqiang.niu@...iatek.com>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "hsinyi@...omium.org" <hsinyi@...omium.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "jassisinghbrar@...il.com" <jassisinghbrar@...il.com>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH v10, 1/4] mailbox: mtk-cmdq: Use GCE_CTRL_BY_SW definition
 instead of number

Hi, Yongqiang:

On Mon, 2022-10-10 at 16:50 +0800, Yongqiang Niu wrote:
> Use GCE_CTRL_BY_SW definition instead of number

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

> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@...labora.com>
> ---
>  drivers/mailbox/mtk-cmdq-mailbox.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c
> b/drivers/mailbox/mtk-cmdq-mailbox.c
> index 9465f9081515..c3cb24f51699 100644
> --- a/drivers/mailbox/mtk-cmdq-mailbox.c
> +++ b/drivers/mailbox/mtk-cmdq-mailbox.c
> @@ -38,6 +38,7 @@
>  #define CMDQ_THR_PRIORITY		0x40
>  
>  #define GCE_GCTL_VALUE			0x48
> +#define GCE_CTRL_BY_SW				GENMASK(2, 0)
>  
>  #define CMDQ_THR_ACTIVE_SLOT_CYCLES	0x3200
>  #define CMDQ_THR_ENABLED		0x1
> @@ -129,7 +130,8 @@ static void cmdq_init(struct cmdq *cmdq)
>  
>  	WARN_ON(clk_bulk_enable(cmdq->gce_num, cmdq->clocks));
>  	if (cmdq->control_by_sw)
> -		writel(0x7, cmdq->base + GCE_GCTL_VALUE);
> +		writel(GCE_CTRL_BY_SW, cmdq->base + GCE_GCTL_VALUE);
> +
>  	writel(CMDQ_THR_ACTIVE_SLOT_CYCLES, cmdq->base +
> CMDQ_THR_SLOT_CYCLES);
>  	for (i = 0; i <= CMDQ_MAX_EVENT; i++)
>  		writel(i, cmdq->base + CMDQ_SYNC_TOKEN_UPDATE);