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Subject: Re: [PATCH V2 7/8] brcmfmac: 4373 save-restore support
To:     Chi-Hsien Lin <Chi-Hsien.Lin@cypress.com>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
References: <1542007730-47284-1-git-send-email-chi-hsien.lin@cypress.com>
 <1542007730-47284-8-git-send-email-chi-hsien.lin@cypress.com>
Cc:     "brcm80211-dev-list@broadcom.com" <brcm80211-dev-list@broadcom.com>,
        brcm80211-dev-list <brcm80211-dev-list@cypress.com>,
        Franky Lin <franky.lin@broadcom.com>,
        Hante Meuleman <hante.meuleman@broadcom.com>,
        Wright Feng <Wright.Feng@cypress.com>,
        Kalle Valo <kvalo@codeaurora.org>
From:   Arend van Spriel <arend.vanspriel@broadcom.com>
Message-ID: <0d024ae5-dc3e-a812-3afb-8b9fbd910444@broadcom.com>
Date:   Mon, 12 Nov 2018 11:30:19 +0100
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On 11/12/2018 8:29 AM, Chi-Hsien Lin wrote:
> Use sr_eng_en bit to check 4373 sr support.
>
> Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
> ---
>  drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c
> index a8d3b96b727f..08d5173d000c 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c
> @@ -1365,6 +1365,11 @@ bool brcmf_chip_sr_capable(struct brcmf_chip *pub)
>  		addr = CORE_CC_REG(base, sr_control1);
>  		reg = chip->ops->read32(chip->ctx, addr);
>  		return reg != 0;
> +	case CY_CC_4373_CHIP_ID:
> +		/* explicitly check SR engine enable bit */
> +		addr = CORE_CC_REG(base, sr_control0);
> +		reg = chip->ops->read32(chip->ctx, addr);
> +		return (reg & BIT(0)) != 0;

Sorry for not saying it earlier, but maybe it is good to add define of 
SR engine enable bit in brcm80211/include/chipcommon.h.

Regards,
Arend