Re: [PATCH v5 14/16] memory: mtk-smi: Get rid of mtk_smi_larb_get/put

From: Matthias Brugger <matthias.bgg@gmail.com>
To: Yong Wu <yong.wu@mediatek.com>, Joerg Roedel <joro@8bytes.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>
Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org,
	yi.kuo@mediatek.com, Nicolas Boichat <drinkcat@chromium.org>,
	acourbot@chromium.org, srv_heupstream@mediatek.com,
	eizan@chromium.org, Will Deacon <will.deacon@arm.com>,
	linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>,
	chao.hao@mediatek.com, iommu@lists.linux-foundation.org,
	Matthias Kaehlcke <mka@chromium.org>,
	linux-mediatek@lists.infradead.org, ming-fan.chen@mediatek.com,
	anan.sun@mediatek.com, Robin Murphy <robin.murphy@arm.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 14/16] memory: mtk-smi: Get rid of mtk_smi_larb_get/put
Date: Wed, 9 Jun 2021 16:42:08 +0200	[thread overview]
Message-ID: <1755fd87-a724-508f-92a8-d09b627d58ca@gmail.com> (raw)
In-Reply-To: <20210410091128.31823-15-yong.wu@mediatek.com>


On 10/04/2021 11:11, Yong Wu wrote:
> After adding device_link between the iommu consumer and smi-larb,
> the pm_runtime_get(_sync) of smi-larb and smi-common will be called
> automatically. we can get rid of mtk_smi_larb_get/put.
> 
> CC: Matthias Brugger <matthias.bgg@gmail.com>
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> Reviewed-by: Evan Green <evgreen@chromium.org>

Acked-by: Matthias Brugger <matthias.bgg@gmail.com>

> ---
>  drivers/memory/mtk-smi.c   | 14 --------------
>  include/soc/mediatek/smi.h | 20 --------------------
>  2 files changed, 34 deletions(-)
> 
> diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
> index c5fb51f73b34..7c61c924e220 100644
> --- a/drivers/memory/mtk-smi.c
> +++ b/drivers/memory/mtk-smi.c
> @@ -134,20 +134,6 @@ static void mtk_smi_clk_disable(const struct mtk_smi *smi)
>  	clk_disable_unprepare(smi->clk_apb);
>  }
>  
> -int mtk_smi_larb_get(struct device *larbdev)
> -{
> -	int ret = pm_runtime_resume_and_get(larbdev);
> -
> -	return (ret < 0) ? ret : 0;
> -}
> -EXPORT_SYMBOL_GPL(mtk_smi_larb_get);
> -
> -void mtk_smi_larb_put(struct device *larbdev)
> -{
> -	pm_runtime_put_sync(larbdev);
> -}
> -EXPORT_SYMBOL_GPL(mtk_smi_larb_put);
> -
>  static int
>  mtk_smi_larb_bind(struct device *dev, struct device *master, void *data)
>  {
> diff --git a/include/soc/mediatek/smi.h b/include/soc/mediatek/smi.h
> index 15e3397cec58..11f7d6b59642 100644
> --- a/include/soc/mediatek/smi.h
> +++ b/include/soc/mediatek/smi.h
> @@ -19,26 +19,6 @@ struct mtk_smi_larb_iommu {
>  	unsigned char  bank[32];
>  };
>  
> -/*
> - * mtk_smi_larb_get: Enable the power domain and clocks for this local arbiter.
> - *                   It also initialize some basic setting(like iommu).
> - * mtk_smi_larb_put: Disable the power domain and clocks for this local arbiter.
> - * Both should be called in non-atomic context.
> - *
> - * Returns 0 if successful, negative on failure.
> - */
> -int mtk_smi_larb_get(struct device *larbdev);
> -void mtk_smi_larb_put(struct device *larbdev);
> -
> -#else
> -
> -static inline int mtk_smi_larb_get(struct device *larbdev)
> -{
> -	return 0;
> -}
> -
> -static inline void mtk_smi_larb_put(struct device *larbdev) { }
> -
>  #endif
>  
>  #endif
> 
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