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Wed, 14 Sep 2022 13:42:47 -0700 (PDT) Message-ID: Date: Wed, 14 Sep 2022 22:42:45 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1 Subject: Re: [PATCH 2/5] soc: mediatek: change compatible name for mt8195 To: "Jason-JH.Lin" , Chun-Kuang Hu , Rob Herring , Krzysztof Kozlowski , AngeloGioacchino Del Regno Cc: CK Hu , Rex-BC Chen , Singo Chang , Nancy Lin , dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Project_Global_Chrome_Upstream_Group@mediatek.com References: <20220914182331.20515-1-jason-jh.lin@mediatek.com> <20220914182331.20515-3-jason-jh.lin@mediatek.com> Content-Language: en-US From: Matthias Brugger In-Reply-To: <20220914182331.20515-3-jason-jh.lin@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220914_134255_422408_24ADF4B2 X-CRM114-Status: GOOD ( 25.92 ) 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: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 14/09/2022 20:23, Jason-JH.Lin wrote: > In mt8195, vdosys0 and vdosys1 are 2 different function blocks > for mediatek-drm, so using 2 compatible instead of identifying > multiple mmsys by io_start. > > Fixes: b804923b7ccb ("soc: mediatek: add mtk-mmsys support for mt8195 vdosys0") > Signed-off-by: Jason-JH.Lin From what I have seen we can just revert the commit. No fixes tag needed, it does not fix any (runtime) bug. Regards, Matthias > --- > drivers/soc/mediatek/mtk-mmsys.c | 141 +++++-------------------------- > drivers/soc/mediatek/mtk-mmsys.h | 6 -- > 2 files changed, 21 insertions(+), 126 deletions(-) > > diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c > index 06d8e83a2cb5..e1c653f3abc0 100644 > --- a/drivers/soc/mediatek/mtk-mmsys.c > +++ b/drivers/soc/mediatek/mtk-mmsys.c > @@ -26,61 +26,26 @@ static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = { > .num_routes = ARRAY_SIZE(mmsys_default_routing_table), > }; > > -static const struct mtk_mmsys_match_data mt2701_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt2701_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = { > .clk_driver = "clk-mt2712-mm", > .routes = mmsys_default_routing_table, > .num_routes = ARRAY_SIZE(mmsys_default_routing_table), > }; > > -static const struct mtk_mmsys_match_data mt2712_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt2712_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt6779_mmsys_driver_data = { > .clk_driver = "clk-mt6779-mm", > }; > > -static const struct mtk_mmsys_match_data mt6779_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt6779_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt6797_mmsys_driver_data = { > .clk_driver = "clk-mt6797-mm", > }; > > -static const struct mtk_mmsys_match_data mt6797_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt6797_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt8167_mmsys_driver_data = { > .clk_driver = "clk-mt8167-mm", > .routes = mt8167_mmsys_routing_table, > .num_routes = ARRAY_SIZE(mt8167_mmsys_routing_table), > }; > > -static const struct mtk_mmsys_match_data mt8167_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt8167_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = { > .clk_driver = "clk-mt8173-mm", > .routes = mmsys_default_routing_table, > @@ -88,13 +53,6 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = { > .sw0_rst_offset = MT8183_MMSYS_SW0_RST_B, > }; > > -static const struct mtk_mmsys_match_data mt8173_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt8173_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = { > .clk_driver = "clk-mt8183-mm", > .routes = mmsys_mt8183_routing_table, > @@ -102,13 +60,6 @@ static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = { > .sw0_rst_offset = MT8183_MMSYS_SW0_RST_B, > }; > > -static const struct mtk_mmsys_match_data mt8183_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt8183_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = { > .clk_driver = "clk-mt8186-mm", > .routes = mmsys_mt8186_routing_table, > @@ -116,13 +67,6 @@ static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = { > .sw0_rst_offset = MT8186_MMSYS_SW0_RST_B, > }; > > -static const struct mtk_mmsys_match_data mt8186_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt8186_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = { > .clk_driver = "clk-mt8192-mm", > .routes = mmsys_mt8192_routing_table, > @@ -130,66 +74,29 @@ static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = { > .sw0_rst_offset = MT8186_MMSYS_SW0_RST_B, > }; > > -static const struct mtk_mmsys_match_data mt8192_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt8192_mmsys_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt8195_vdosys0_driver_data = { > - .io_start = 0x1c01a000, > .clk_driver = "clk-mt8195-vdo0", > .routes = mmsys_mt8195_routing_table, > .num_routes = ARRAY_SIZE(mmsys_mt8195_routing_table), > }; > > static const struct mtk_mmsys_driver_data mt8195_vdosys1_driver_data = { > - .io_start = 0x1c100000, > .clk_driver = "clk-mt8195-vdo1", > }; > > -static const struct mtk_mmsys_match_data mt8195_mmsys_match_data = { > - .num_drv_data = 2, > - .drv_data = { > - &mt8195_vdosys0_driver_data, > - &mt8195_vdosys1_driver_data, > - }, > -}; > - > static const struct mtk_mmsys_driver_data mt8365_mmsys_driver_data = { > .clk_driver = "clk-mt8365-mm", > .routes = mt8365_mmsys_routing_table, > .num_routes = ARRAY_SIZE(mt8365_mmsys_routing_table), > }; > > -static const struct mtk_mmsys_match_data mt8365_mmsys_match_data = { > - .num_drv_data = 1, > - .drv_data = { > - &mt8365_mmsys_driver_data, > - }, > -}; > - > struct mtk_mmsys { > void __iomem *regs; > const struct mtk_mmsys_driver_data *data; > spinlock_t lock; /* protects mmsys_sw_rst_b reg */ > struct reset_controller_dev rcdev; > - phys_addr_t io_start; > }; > > -static int mtk_mmsys_find_match_drvdata(struct mtk_mmsys *mmsys, > - const struct mtk_mmsys_match_data *match) > -{ > - int i; > - > - for (i = 0; i < match->num_drv_data; i++) > - if (mmsys->io_start == match->drv_data[i]->io_start) > - return i; > - > - return -EINVAL; > -} > - > void mtk_mmsys_ddp_connect(struct device *dev, > enum mtk_ddp_comp_id cur, > enum mtk_ddp_comp_id next) > @@ -284,7 +191,6 @@ static int mtk_mmsys_probe(struct platform_device *pdev) > struct device *dev = &pdev->dev; > struct platform_device *clks; > struct platform_device *drm; > - const struct mtk_mmsys_match_data *match_data; > struct mtk_mmsys *mmsys; > struct resource *res; > int ret; > @@ -317,20 +223,11 @@ static int mtk_mmsys_probe(struct platform_device *pdev) > dev_err(dev, "Couldn't get mmsys resource\n"); > return -EINVAL; > } > - mmsys->io_start = res->start; > - > - match_data = of_device_get_match_data(dev); > - if (match_data->num_drv_data > 1) { > - /* This SoC has multiple mmsys channels */ > - ret = mtk_mmsys_find_match_drvdata(mmsys, match_data); > - if (ret < 0) { > - dev_err(dev, "Couldn't get match driver data\n"); > - return ret; > - } > - mmsys->data = match_data->drv_data[ret]; > - } else { > - dev_dbg(dev, "Using single mmsys channel\n"); > - mmsys->data = match_data->drv_data[0]; > + > + mmsys->data = of_device_get_match_data(&pdev->dev); > + if (!mmsys->data) { > + dev_err(dev, "Couldn't get match driver data\n"); > + return -EINVAL; > } > > platform_set_drvdata(pdev, mmsys); > @@ -353,47 +250,51 @@ static int mtk_mmsys_probe(struct platform_device *pdev) > static const struct of_device_id of_match_mtk_mmsys[] = { > { > .compatible = "mediatek,mt2701-mmsys", > - .data = &mt2701_mmsys_match_data, > + .data = &mt2701_mmsys_driver_data, > }, > { > .compatible = "mediatek,mt2712-mmsys", > - .data = &mt2712_mmsys_match_data, > + .data = &mt2712_mmsys_driver_data, > }, > { > .compatible = "mediatek,mt6779-mmsys", > - .data = &mt6779_mmsys_match_data, > + .data = &mt6779_mmsys_driver_data, > }, > { > .compatible = "mediatek,mt6797-mmsys", > - .data = &mt6797_mmsys_match_data, > + .data = &mt6797_mmsys_driver_data, > }, > { > .compatible = "mediatek,mt8167-mmsys", > - .data = &mt8167_mmsys_match_data, > + .data = &mt8167_mmsys_driver_data, > }, > { > .compatible = "mediatek,mt8173-mmsys", > - .data = &mt8173_mmsys_match_data, > + .data = &mt8173_mmsys_driver_data, > }, > { > .compatible = "mediatek,mt8183-mmsys", > - .data = &mt8183_mmsys_match_data, > + .data = &mt8183_mmsys_driver_data, > }, > { > .compatible = "mediatek,mt8186-mmsys", > - .data = &mt8186_mmsys_match_data, > + .data = &mt8186_mmsys_driver_data, > }, > { > .compatible = "mediatek,mt8192-mmsys", > - .data = &mt8192_mmsys_match_data, > + .data = &mt8192_mmsys_driver_data, > + }, > + { > + .compatible = "mediatek,mt8195-vdosys0", > + .data = &mt8195_vdosys0_driver_data, > }, > { > - .compatible = "mediatek,mt8195-mmsys", > - .data = &mt8195_mmsys_match_data, > + .compatible = "mediatek,mt8195-vdosys1", > + .data = &mt8195_vdosys1_driver_data, > }, > { > .compatible = "mediatek,mt8365-mmsys", > - .data = &mt8365_mmsys_match_data, > + .data = &mt8365_mmsys_driver_data, > }, > { } > }; > diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h > index f01ba206481d..77f37f8c715b 100644 > --- a/drivers/soc/mediatek/mtk-mmsys.h > +++ b/drivers/soc/mediatek/mtk-mmsys.h > @@ -87,18 +87,12 @@ struct mtk_mmsys_routes { > }; > > struct mtk_mmsys_driver_data { > - const resource_size_t io_start; > const char *clk_driver; > const struct mtk_mmsys_routes *routes; > const unsigned int num_routes; > const u16 sw0_rst_offset; > }; > > -struct mtk_mmsys_match_data { > - unsigned short num_drv_data; > - const struct mtk_mmsys_driver_data *drv_data[]; > -}; > - > /* > * Routes in mt8173, mt2701, mt2712 are different. That means > * in the same register address, it controls different input/output _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel