Re: [PATCH v5 5/6] drm/mediatek: add mediatek-drm of vdosys0 support for mt8195

From: Matthias Brugger <matthias.bgg@gmail.com>
To: "Jason-JH.Lin" <jason-jh.lin@mediatek.com>,
	Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>
Cc: devicetree@vger.kernel.org,
	Singo Chang <singo.chang@mediatek.com>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Project_Global_Chrome_Upstream_Group@mediatek.com,
	Rex-BC Chen <rex-bc.chen@mediatek.com>,
	Nancy Lin <nancy.lin@mediatek.com>,
	linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 5/6] drm/mediatek: add mediatek-drm of vdosys0 support for mt8195
Date: Fri, 11 Nov 2022 12:42:03 +0100	[thread overview]
Message-ID: <c3c7396c-de5b-1853-e914-9d8eabd31099@gmail.com> (raw)
In-Reply-To: <20220927152704.12018-6-jason-jh.lin@mediatek.com>

On 27/09/2022 17:27, Jason-JH.Lin wrote:
> Add driver data of mt8195 vdosys0 to mediatek-drm and the sub driver.
> 
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
> ---
>   drivers/gpu/drm/mediatek/mtk_disp_rdma.c |  6 +++++
>   drivers/gpu/drm/mediatek/mtk_drm_drv.c   | 28 ++++++++++++++++++++++++
>   2 files changed, 34 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> index 2cb90466798c..66cdd0bc1311 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> @@ -374,6 +374,10 @@ static const struct mtk_disp_rdma_data mt8192_rdma_driver_data = {
>   	.fifo_size = 5 * SZ_1K,
>   };
>   
> +static const struct mtk_disp_rdma_data mt8195_rdma_driver_data = {
> +	.fifo_size = 1920,
> +};
> +
>   static const struct of_device_id mtk_disp_rdma_driver_dt_match[] = {
>   	{ .compatible = "mediatek,mt2701-disp-rdma",
>   	  .data = &mt2701_rdma_driver_data},
> @@ -383,6 +387,8 @@ static const struct of_device_id mtk_disp_rdma_driver_dt_match[] = {
>   	  .data = &mt8183_rdma_driver_data},
>   	{ .compatible = "mediatek,mt8192-disp-rdma",
>   	  .data = &mt8192_rdma_driver_data},
> +	{ .compatible = "mediatek,mt8195-disp-rdma",
> +	  .data = &mt8195_rdma_driver_data},
>   	{},
>   };
>   MODULE_DEVICE_TABLE(of, mtk_disp_rdma_driver_dt_match);
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index adc9a4f4085b..9b5a7a7ddde0 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -195,6 +195,19 @@ static const enum mtk_ddp_comp_id mt8192_mtk_ddp_ext[] = {
>   	DDP_COMPONENT_DPI0,
>   };
>   
> +static const enum mtk_ddp_comp_id mt8195_mtk_ddp_main[] = {
> +	DDP_COMPONENT_OVL0,
> +	DDP_COMPONENT_RDMA0,
> +	DDP_COMPONENT_COLOR0,
> +	DDP_COMPONENT_CCORR,
> +	DDP_COMPONENT_AAL0,
> +	DDP_COMPONENT_GAMMA,
> +	DDP_COMPONENT_DITHER0,
> +	DDP_COMPONENT_DSC0,
> +	DDP_COMPONENT_MERGE0,
> +	DDP_COMPONENT_DP_INTF0,
> +};
> +
>   static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
>   	.main_path = mt2701_mtk_ddp_main,
>   	.main_len = ARRAY_SIZE(mt2701_mtk_ddp_main),
> @@ -253,6 +266,11 @@ static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
>   	.ext_len = ARRAY_SIZE(mt8192_mtk_ddp_ext),
>   };
>   
> +static const struct mtk_mmsys_driver_data mt8195_vdosys0_driver_data = {
> +	.main_path = mt8195_mtk_ddp_main,
> +	.main_len = ARRAY_SIZE(mt8195_mtk_ddp_main),
> +};
> +
>   static int mtk_drm_kms_init(struct drm_device *drm)
>   {
>   	struct mtk_drm_private *private = drm->dev_private;
> @@ -470,12 +488,16 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>   	  .data = (void *)MTK_DISP_DITHER },
>   	{ .compatible = "mediatek,mt8183-disp-dither",
>   	  .data = (void *)MTK_DISP_DITHER },
> +	{ .compatible = "mediatek,mt8195-disp-dsc",
> +	  .data = (void *)MTK_DISP_DSC },
>   	{ .compatible = "mediatek,mt8167-disp-gamma",
>   	  .data = (void *)MTK_DISP_GAMMA, },
>   	{ .compatible = "mediatek,mt8173-disp-gamma",
>   	  .data = (void *)MTK_DISP_GAMMA, },
>   	{ .compatible = "mediatek,mt8183-disp-gamma",
>   	  .data = (void *)MTK_DISP_GAMMA, },
> +	{ .compatible = "mediatek,mt8195-disp-merge",
> +	  .data = (void *)MTK_DISP_MERGE },
>   	{ .compatible = "mediatek,mt2701-disp-mutex",
>   	  .data = (void *)MTK_DISP_MUTEX },
>   	{ .compatible = "mediatek,mt2712-disp-mutex",
> @@ -490,6 +512,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>   	  .data = (void *)MTK_DISP_MUTEX },
>   	{ .compatible = "mediatek,mt8192-disp-mutex",
>   	  .data = (void *)MTK_DISP_MUTEX },
> +	{ .compatible = "mediatek,mt8195-disp-mutex",
> +	  .data = (void *)MTK_DISP_MUTEX },
>   	{ .compatible = "mediatek,mt8173-disp-od",
>   	  .data = (void *)MTK_DISP_OD },
>   	{ .compatible = "mediatek,mt2701-disp-ovl",
> @@ -524,6 +548,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>   	  .data = (void *)MTK_DISP_RDMA },
>   	{ .compatible = "mediatek,mt8192-disp-rdma",
>   	  .data = (void *)MTK_DISP_RDMA },
> +	{ .compatible = "mediatek,mt8195-disp-rdma",
> +	  .data = (void *)MTK_DISP_RDMA },
>   	{ .compatible = "mediatek,mt8173-disp-ufoe",
>   	  .data = (void *)MTK_DISP_UFOE },
>   	{ .compatible = "mediatek,mt8173-disp-wdma",
> @@ -568,6 +594,8 @@ static const struct of_device_id mtk_drm_of_ids[] = {
>   	  .data = &mt8186_mmsys_driver_data},
>   	{ .compatible = "mediatek,mt8192-mmsys",
>   	  .data = &mt8192_mmsys_driver_data},
> +	{ .compatible = "mediatek,mt8195-vdosys0",
> +	  .data = &mt8195_vdosys0_driver_data},

To make this work with older device tree, we will need to provide the same 
driver data to the old compatible:

+	{ .compatible = "mediatek,,mt8195-mmsys",
+	  .data = &mt8195_vdosys0_driver_data},
+       }

Regards,
Matthias

>   	{ }
>   };
>   MODULE_DEVICE_TABLE(of, mtk_drm_of_ids);