linux-kernel - Re: [PATCH 1/2] soc: mediatek: pm-domains: Use correct mask for bus_prot

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Date:   Mon, 1 Feb 2021 13:54:10 +0800
From:   Hsin-Yi Wang <hsinyi@...omium.org>
To:     Bilal Wasim <bilalwasim676@...il.com>
Cc:     "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Weiyi Lu <weiyi.lu@...iatek.com>
Subject: Re: [PATCH 1/2] soc: mediatek: pm-domains: Use correct mask for bus_prot_clr

On Mon, Feb 1, 2021 at 1:45 PM Bilal Wasim <bilalwasim676@...il.com> wrote:
>
> When "bus_prot_reg_update" is false, the driver should use
> INFRA_TOPAXI_PROTECTEN for both setting and clearing the bus
> protection. However, the driver does not use this mask for
> clearing bus protection which causes failure when booting
> the imgtec gpu.
>
> Corrected and tested with mt8173 chromebook.
>
> Signed-off-by: Bilal Wasim <Bilal.Wasim@...tec.com>

Reviewed-by: Hsin-Yi Wang <hsinyi@...omium.org>

> ---
>  drivers/soc/mediatek/mtk-pm-domains.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/soc/mediatek/mtk-pm-domains.h b/drivers/soc/mediatek/mtk-pm-domains.h
> index 141dc76054e6..7454c0b4f768 100644
> --- a/drivers/soc/mediatek/mtk-pm-domains.h
> +++ b/drivers/soc/mediatek/mtk-pm-domains.h
> @@ -60,7 +60,7 @@
>  #define BUS_PROT_UPDATE_TOPAXI(_mask)                          \
>                 BUS_PROT_UPDATE(_mask,                          \
>                                 INFRA_TOPAXI_PROTECTEN,         \
> -                               INFRA_TOPAXI_PROTECTEN_CLR,     \
> +                               INFRA_TOPAXI_PROTECTEN,         \
>                                 INFRA_TOPAXI_PROTECTSTA1)
>
>  struct scpsys_bus_prot_data {
> --
> 2.25.1
>