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Thu, 28 Oct 2021 03:01:07 -0700 (PDT) MIME-Version: 1.0 References: <20211028022049.22129-1-wenbin.mei@mediatek.com> In-Reply-To: <20211028022049.22129-1-wenbin.mei@mediatek.com> From: Ulf Hansson Date: Thu, 28 Oct 2021 12:00:30 +0200 Message-ID: Subject: Re: [PATCH] mmc: mediatek: move cqhci init behind ungate clock To: Wenbin Mei Cc: Matthias Brugger , Chaotian Jing , Chun-Hung Wu , Yong Mao , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com, stable@vger.kernel.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211028_030109_013193_CBA2E28B X-CRM114-Status: GOOD ( 16.07 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Thu, 28 Oct 2021 at 04:20, Wenbin Mei wrote: > > We must enable clock before cqhci init, because crypto needs > read information from CQHCI registers, otherwise, it will hang > in MediaTek mmc host controller. > > Signed-off-by: Wenbin Mei > Fixes: 88bd652b3c74 ("mmc: mediatek: command queue support") > Cc: stable@vger.kernel.org Applied for fixes, thanks! Kind regards Uffe > --- > drivers/mmc/host/mtk-sd.c | 38 +++++++++++++++++++------------------- > 1 file changed, 19 insertions(+), 19 deletions(-) > > diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c > index b124cfee05a1..943940b44e83 100644 > --- a/drivers/mmc/host/mtk-sd.c > +++ b/drivers/mmc/host/mtk-sd.c > @@ -2656,6 +2656,25 @@ static int msdc_drv_probe(struct platform_device *pdev) > host->dma_mask = DMA_BIT_MASK(32); > mmc_dev(mmc)->dma_mask = &host->dma_mask; > > + host->timeout_clks = 3 * 1048576; > + host->dma.gpd = dma_alloc_coherent(&pdev->dev, > + 2 * sizeof(struct mt_gpdma_desc), > + &host->dma.gpd_addr, GFP_KERNEL); > + host->dma.bd = dma_alloc_coherent(&pdev->dev, > + MAX_BD_NUM * sizeof(struct mt_bdma_desc), > + &host->dma.bd_addr, GFP_KERNEL); > + if (!host->dma.gpd || !host->dma.bd) { > + ret = -ENOMEM; > + goto release_mem; > + } > + msdc_init_gpd_bd(host, &host->dma); > + INIT_DELAYED_WORK(&host->req_timeout, msdc_request_timeout); > + spin_lock_init(&host->lock); > + > + platform_set_drvdata(pdev, mmc); > + msdc_ungate_clock(host); > + msdc_init_hw(host); > + > if (mmc->caps2 & MMC_CAP2_CQE) { > host->cq_host = devm_kzalloc(mmc->parent, > sizeof(*host->cq_host), > @@ -2676,25 +2695,6 @@ static int msdc_drv_probe(struct platform_device *pdev) > mmc->max_seg_size = 64 * 1024; > } > > - host->timeout_clks = 3 * 1048576; > - host->dma.gpd = dma_alloc_coherent(&pdev->dev, > - 2 * sizeof(struct mt_gpdma_desc), > - &host->dma.gpd_addr, GFP_KERNEL); > - host->dma.bd = dma_alloc_coherent(&pdev->dev, > - MAX_BD_NUM * sizeof(struct mt_bdma_desc), > - &host->dma.bd_addr, GFP_KERNEL); > - if (!host->dma.gpd || !host->dma.bd) { > - ret = -ENOMEM; > - goto release_mem; > - } > - msdc_init_gpd_bd(host, &host->dma); > - INIT_DELAYED_WORK(&host->req_timeout, msdc_request_timeout); > - spin_lock_init(&host->lock); > - > - platform_set_drvdata(pdev, mmc); > - msdc_ungate_clock(host); > - msdc_init_hw(host); > - > ret = devm_request_irq(&pdev->dev, host->irq, msdc_irq, > IRQF_TRIGGER_NONE, pdev->name, host); > if (ret) > -- > 2.25.1 > _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek