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s42mr3185648eda.283.1566988119215; Wed, 28 Aug 2019 03:28:39 -0700 (PDT) Received: from ziggy.stardust ([95.169.228.146]) by smtp.gmail.com with ESMTPSA id i1sm369234edi.13.2019.08.28.03.28.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 28 Aug 2019 03:28:38 -0700 (PDT) Subject: Re: [PATCH v7 07/13] soc: mediatek: Refactor bus protection control To: Weiyi Lu , Nicolas Boichat , Rob Herring Cc: James Liao , Fan Chen , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com, Yong Wu References: <1566983506-26598-1-git-send-email-weiyi.lu@mediatek.com> <1566983506-26598-8-git-send-email-weiyi.lu@mediatek.com> From: Matthias Brugger Openpgp: preference=signencrypt Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa 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<1566983506-26598-8-git-send-email-weiyi.lu@mediatek.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 28/08/2019 11:11, Weiyi Lu wrote: > Put bus protection enable and disable control in separate functions. > > Signed-off-by: Weiyi Lu Applied to v5.4-next/soc Thanks! > --- > drivers/soc/mediatek/mtk-scpsys.c | 44 ++++++++++++++++++++++++++------------- > 1 file changed, 30 insertions(+), 14 deletions(-) > > diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c > index ad0f619..fb2b027 100644 > --- a/drivers/soc/mediatek/mtk-scpsys.c > +++ b/drivers/soc/mediatek/mtk-scpsys.c > @@ -274,6 +274,30 @@ static int scpsys_sram_disable(struct scp_domain *scpd, void __iomem *ctl_addr) > MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > } > > +static int scpsys_bus_protect_enable(struct scp_domain *scpd) > +{ > + struct scp *scp = scpd->scp; > + > + if (!scpd->data->bus_prot_mask) > + return 0; > + > + return mtk_infracfg_set_bus_protection(scp->infracfg, > + scpd->data->bus_prot_mask, > + scp->bus_prot_reg_update); > +} > + > +static int scpsys_bus_protect_disable(struct scp_domain *scpd) > +{ > + struct scp *scp = scpd->scp; > + > + if (!scpd->data->bus_prot_mask) > + return 0; > + > + return mtk_infracfg_clear_bus_protection(scp->infracfg, > + scpd->data->bus_prot_mask, > + scp->bus_prot_reg_update); > +} > + > static int scpsys_power_on(struct generic_pm_domain *genpd) > { > struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd); > @@ -316,13 +340,9 @@ static int scpsys_power_on(struct generic_pm_domain *genpd) > if (ret < 0) > goto err_pwr_ack; > > - if (scpd->data->bus_prot_mask) { > - ret = mtk_infracfg_clear_bus_protection(scp->infracfg, > - scpd->data->bus_prot_mask, > - scp->bus_prot_reg_update); > - if (ret) > - goto err_pwr_ack; > - } > + ret = scpsys_bus_protect_disable(scpd); > + if (ret < 0) > + goto err_pwr_ack; > > return 0; > > @@ -344,13 +364,9 @@ static int scpsys_power_off(struct generic_pm_domain *genpd) > u32 val; > int ret, tmp; > > - if (scpd->data->bus_prot_mask) { > - ret = mtk_infracfg_set_bus_protection(scp->infracfg, > - scpd->data->bus_prot_mask, > - scp->bus_prot_reg_update); > - if (ret) > - goto out; > - } > + ret = scpsys_bus_protect_enable(scpd); > + if (ret < 0) > + goto out; > > ret = scpsys_sram_disable(scpd, ctl_addr); > if (ret < 0) >