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X-UUID: b479665898334e99be70c430bcdd6b60-20200617 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 946492541; Wed, 17 Jun 2020 11:01:02 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 17 Jun 2020 11:00:56 +0800 Received: from localhost.localdomain (10.15.20.246) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 17 Jun 2020 11:00:54 +0800 From: Chao Hao To: Joerg Roedel , Rob Herring , Matthias Brugger Subject: [PATCH v4 2/7] iommu/mediatek: Rename the register STANDARD_AXI_MODE(0x48) to MISC_CTRL Date: Wed, 17 Jun 2020 11:00:24 +0800 Message-ID: <20200617030029.4082-3-chao.hao@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200617030029.4082-1-chao.hao@mediatek.com> References: <20200617030029.4082-1-chao.hao@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 188D1A00A826EE5799AC19EF941DCB135E73C224925AD649618F2E108CC3D7702000:8 X-MTK: N Cc: devicetree@vger.kernel.org, FY Yang , wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, Chao Hao , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" For iommu offset=0x48 register, only the previous mt8173/mt8183 use the name STANDARD_AXI_MODE, all the latest SoC extend the register more feature by different bits, for example: axi_mode, in_order_en, coherent_en and so on. So rename REG_MMU_MISC_CTRL may be more proper. This patch only rename the register name, no functional change. Signed-off-by: Chao Hao Reviewed-by: Yong Wu --- drivers/iommu/mtk_iommu.c | 14 +++++++------- drivers/iommu/mtk_iommu.h | 2 +- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 2be96f1cdbd2..88d3df5b91c2 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -41,7 +41,7 @@ #define F_INVLD_EN0 BIT(0) #define F_INVLD_EN1 BIT(1) -#define REG_MMU_STANDARD_AXI_MODE 0x048 +#define REG_MMU_MISC_CTRL 0x048 #define REG_MMU_DCM_DIS 0x050 #define REG_MMU_CTRL_REG 0x110 @@ -573,8 +573,10 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) } writel_relaxed(0, data->base + REG_MMU_DCM_DIS); - if (data->plat_data->reset_axi) - writel_relaxed(0, data->base + REG_MMU_STANDARD_AXI_MODE); + if (data->plat_data->reset_axi) { + /* The register is called STANDARD_AXI_MODE in this case */ + writel_relaxed(0, data->base + REG_MMU_MISC_CTRL); + } if (devm_request_irq(data->dev, data->irq, mtk_iommu_isr, 0, dev_name(data->dev), (void *)data)) { @@ -718,8 +720,7 @@ static int __maybe_unused mtk_iommu_suspend(struct device *dev) struct mtk_iommu_suspend_reg *reg = &data->reg; void __iomem *base = data->base; - reg->standard_axi_mode = readl_relaxed(base + - REG_MMU_STANDARD_AXI_MODE); + reg->misc_ctrl = readl_relaxed(base + REG_MMU_MISC_CTRL); reg->dcm_dis = readl_relaxed(base + REG_MMU_DCM_DIS); reg->ctrl_reg = readl_relaxed(base + REG_MMU_CTRL_REG); reg->int_control0 = readl_relaxed(base + REG_MMU_INT_CONTROL0); @@ -743,8 +744,7 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev) dev_err(data->dev, "Failed to enable clk(%d) in resume\n", ret); return ret; } - writel_relaxed(reg->standard_axi_mode, - base + REG_MMU_STANDARD_AXI_MODE); + writel_relaxed(reg->misc_ctrl, base + REG_MMU_MISC_CTRL); writel_relaxed(reg->dcm_dis, base + REG_MMU_DCM_DIS); writel_relaxed(reg->ctrl_reg, base + REG_MMU_CTRL_REG); writel_relaxed(reg->int_control0, base + REG_MMU_INT_CONTROL0); diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h index ea949a324e33..1b6ea839b92c 100644 --- a/drivers/iommu/mtk_iommu.h +++ b/drivers/iommu/mtk_iommu.h @@ -18,7 +18,7 @@ #include struct mtk_iommu_suspend_reg { - u32 standard_axi_mode; + u32 misc_ctrl; u32 dcm_dis; u32 ctrl_reg; u32 int_control0; -- 2.18.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu