linux-kernel - Re: [PATCH] soc: mediatek: knows_txdone needs to be set in Mediatek CMDQ helper

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Message-ID: <1581661437.16618.0.camel@mtksdaap41>
Date:   Fri, 14 Feb 2020 14:23:57 +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>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Dennis-YC Hsieh <dennis-yc.hsieh@...iatek.com>,
        Houlong Wei <houlong.wei@...iatek.com>
Subject: Re: [PATCH] soc: mediatek: knows_txdone needs to be set in Mediatek
 CMDQ helper

Hi, Bibby:

On Fri, 2020-02-14 at 12:35 +0800, Bibby Hsieh wrote:
> Mediatek CMDQ driver have a mechanism to do TXDONE_BY_ACK,
> so we should set knows_txdone.
> 

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

> Fixes:576f1b4bc802 ("soc: mediatek: Add Mediatek CMDQ helper")
> 
> Signed-off-by: Bibby Hsieh <bibby.hsieh@...iatek.com>
> ---
>  drivers/soc/mediatek/mtk-cmdq-helper.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> index 9add0fd5fa6c..2ca1a759a347 100644
> --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> @@ -80,6 +80,7 @@ struct cmdq_client *cmdq_mbox_create(struct device *dev, int index, u32 timeout)
>  	client->pkt_cnt = 0;
>  	client->client.dev = dev;
>  	client->client.tx_block = false;
> +	client->client.knows_txdone = true;
>  	client->chan = mbox_request_channel(&client->client, index);
>  
>  	if (IS_ERR(client->chan)) {