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Lin" , Yongqiang Niu , , , , , , , Subject: [PATCH v7 09/20] soc: mediatek: mmsys: modify reset controller for MT8195 vdosys1 Date: Fri, 29 Oct 2021 15:51:52 +0800 Message-ID: <20211029075203.17093-10-nancy.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20211029075203.17093-1-nancy.lin@mediatek.com> References: <20211029075203.17093-1-nancy.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211029_005219_950282_C35B821B X-CRM114-Status: GOOD ( 15.74 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org MT8195 vdosys1 has more than 32 reset bits and a different reset base than other chips. Modify mmsys for support 64 bit and different reset base. Signed-off-by: Nancy.Lin --- drivers/soc/mediatek/mt8195-mmsys.h | 1 + drivers/soc/mediatek/mtk-mmsys.c | 21 ++++++++++++++++----- drivers/soc/mediatek/mtk-mmsys.h | 2 ++ 3 files changed, 19 insertions(+), 5 deletions(-) diff --git a/drivers/soc/mediatek/mt8195-mmsys.h b/drivers/soc/mediatek/mt8195-mmsys.h index 11ba79e3275e..628098260f61 100644 --- a/drivers/soc/mediatek/mt8195-mmsys.h +++ b/drivers/soc/mediatek/mt8195-mmsys.h @@ -229,6 +229,7 @@ #define MT8195_VDO1_MIXER_SOUT_SEL_IN 0xf68 #define MT8195_MIXER_SOUT_SEL_IN_FROM_DISP_MIXER 0 +#define MT8195_VDO1_SW0_RST_B 0x1d0 #define MT8195_VDO1_MERGE0_ASYNC_CFG_WD 0xe30 #define MT8195_VDO1_MERGE1_ASYNC_CFG_WD 0xe40 #define MT8195_VDO1_MERGE2_ASYNC_CFG_WD 0xe50 diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c index 868df83eb57d..362609bd244b 100644 --- a/drivers/soc/mediatek/mtk-mmsys.c +++ b/drivers/soc/mediatek/mtk-mmsys.c @@ -19,6 +19,8 @@ #include "mt8192-mmsys.h" #include "mt8195-mmsys.h" +#define MMSYS_SW_RESET_PER_REG 32 + static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = { .clk_driver = "clk-mt2701-mm", .routes = mmsys_default_routing_table, @@ -49,12 +51,16 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = { .clk_driver = "clk-mt8173-mm", .routes = mmsys_default_routing_table, .num_routes = ARRAY_SIZE(mmsys_default_routing_table), + .sw_reset_start = MMSYS_SW0_RST_B, + .num_resets = 32, }; static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = { .clk_driver = "clk-mt8183-mm", .routes = mmsys_mt8183_routing_table, .num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table), + .sw_reset_start = MMSYS_SW0_RST_B, + .num_resets = 32, }; static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = { @@ -75,6 +81,8 @@ static const struct mtk_mmsys_driver_data mt8195_vdosys1_driver_data = { .num_routes = ARRAY_SIZE(mmsys_mt8195_routing_table), .config = mmsys_mt8195_config_table, .num_configs = ARRAY_SIZE(mmsys_mt8195_config_table), + .sw_reset_start = MT8195_VDO1_SW0_RST_B, + .num_resets = 64, }; static const struct mtk_mmsys_driver_data mt8365_mmsys_driver_data = { @@ -133,18 +141,22 @@ static int mtk_mmsys_reset_update(struct reset_controller_dev *rcdev, unsigned l { struct mtk_mmsys *mmsys = container_of(rcdev, struct mtk_mmsys, rcdev); unsigned long flags; + u32 offset; u32 reg; + offset = (id / MMSYS_SW_RESET_PER_REG) * sizeof(u32); + id = id % MMSYS_SW_RESET_PER_REG; + spin_lock_irqsave(&mmsys->lock, flags); - reg = readl_relaxed(mmsys->regs + MMSYS_SW0_RST_B); + reg = readl_relaxed(mmsys->regs + mmsys->data->sw_reset_start + offset); if (assert) reg &= ~BIT(id); else reg |= BIT(id); - writel_relaxed(reg, mmsys->regs + MMSYS_SW0_RST_B); + writel_relaxed(reg, mmsys->regs + mmsys->data->sw_reset_start + offset); spin_unlock_irqrestore(&mmsys->lock, flags); @@ -240,10 +252,11 @@ static int mtk_mmsys_probe(struct platform_device *pdev) return ret; } + mmsys->data = of_device_get_match_data(&pdev->dev); spin_lock_init(&mmsys->lock); mmsys->rcdev.owner = THIS_MODULE; - mmsys->rcdev.nr_resets = 32; + mmsys->rcdev.nr_resets = mmsys->data->num_resets; mmsys->rcdev.ops = &mtk_mmsys_reset_ops; mmsys->rcdev.of_node = pdev->dev.of_node; ret = devm_reset_controller_register(&pdev->dev, &mmsys->rcdev); @@ -252,8 +265,6 @@ static int mtk_mmsys_probe(struct platform_device *pdev) return ret; } - mmsys->data = of_device_get_match_data(&pdev->dev); - #if IS_REACHABLE(CONFIG_MTK_CMDQ) ret = cmdq_dev_get_client_reg(dev, &mmsys->cmdq_base, 0); if (ret) diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h index 2694021435d2..4842102cd451 100644 --- a/drivers/soc/mediatek/mtk-mmsys.h +++ b/drivers/soc/mediatek/mtk-mmsys.h @@ -102,6 +102,8 @@ struct mtk_mmsys_driver_data { const unsigned int num_routes; const struct mtk_mmsys_config *config; const unsigned int num_configs; + u32 sw_reset_start; + u32 num_resets; }; /*