linux-kernel - Re: [PATCH v7 12/26] PM / devfreq: rockchip-dfi: Handle LPDDR4X

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Message-ID: <aa8b7d74-008d-f704-5d63-1cbaac70cf77@kernel.org>
Date:   Sat, 7 Oct 2023 03:26:02 +0900
From:   Chanwoo Choi <chanwoo@...nel.org>
To:     Sascha Hauer <s.hauer@...gutronix.de>,
        linux-rockchip@...ts.infradead.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, Heiko Stuebner <heiko@...ech.de>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>, kernel@...gutronix.de,
        Michael Riesch <michael.riesch@...fvision.net>,
        Robin Murphy <robin.murphy@....com>,
        Vincent Legoll <vincent.legoll@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: [PATCH v7 12/26] PM / devfreq: rockchip-dfi: Handle LPDDR4X

On 23. 7. 4. 18:32, Sascha Hauer wrote:
> In the DFI driver LPDDR4X can be handled in the same way as LPDDR4. Add
> the missing case.
> 
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.com>
> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
> ---
>  drivers/devfreq/event/rockchip-dfi.c | 1 +
>  include/soc/rockchip/rockchip_grf.h  | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c
> index 16cd5365671f7..0a568c5551699 100644
> --- a/drivers/devfreq/event/rockchip-dfi.c
> +++ b/drivers/devfreq/event/rockchip-dfi.c
> @@ -89,6 +89,7 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev)
>  			       dfi_regs + DDRMON_CTRL);
>  		break;
>  	case ROCKCHIP_DDRTYPE_LPDDR4:
> +	case ROCKCHIP_DDRTYPE_LPDDR4X:
>  		writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK),
>  			       dfi_regs + DDRMON_CTRL);
>  		break;
> diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h
> index dde1a9796ccb5..e46fd72aea8d1 100644
> --- a/include/soc/rockchip/rockchip_grf.h
> +++ b/include/soc/rockchip/rockchip_grf.h
> @@ -12,6 +12,7 @@ enum {
>  	ROCKCHIP_DDRTYPE_LPDDR2	= 5,
>  	ROCKCHIP_DDRTYPE_LPDDR3	= 6,
>  	ROCKCHIP_DDRTYPE_LPDDR4	= 7,
> +	ROCKCHIP_DDRTYPE_LPDDR4X = 8,
>  };
>  
>  #endif /* __SOC_ROCKCHIP_GRF_H */

Acked-by: Chanwoo Choi <cw00.choi@...sung.com>

-- 
Best Regards,
Samsung Electronics
Chanwoo Choi