After adding device_link between the consumer with the smi-larbs, if the consumer call its owner pm_runtime_get(_sync), the pm_runtime_get(_sync) of smi-larb and smi-common will be called automatically. Thus, the consumer don't need this property.

And IOMMU also know which larb this consumer connects with from iommu id in the "iommus=" property.

Signed-off-by: Yong Wu yong.wu@mediatek.com Reviewed-by: Rob Herring robh@kernel.org Reviewed-by: Evan Green evgreen@chromium.org Acked-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com --- .../bindings/display/mediatek/mediatek,disp.txt | 9 --------- .../bindings/media/mediatek,vcodec-decoder.yaml | 7 ------- .../bindings/media/mediatek,vcodec-encoder.yaml | 8 -------- .../devicetree/bindings/media/mediatek-jpeg-decoder.yaml | 9 --------- .../devicetree/bindings/media/mediatek-jpeg-encoder.yaml | 9 --------- Documentation/devicetree/bindings/media/mediatek-mdp.txt | 8 -------- 6 files changed, 50 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt index 78044c340e20..8b575e11bcec 100644 --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt @@ -61,8 +61,6 @@ Required properties (DMA function blocks): "mediatek,<chip>-disp-rdma" "mediatek,<chip>-disp-wdma" the supported chips are mt2701, mt8167 and mt8173. -- larb: Should contain a phandle pointing to the local arbiter device as defined - in Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml - iommus: Should point to the respective IOMMU block with master port as argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. @@ -91,7 +89,6 @@ ovl0: ovl@1400c000 { power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; clocks = <&mmsys CLK_MM_DISP_OVL0>; iommus = <&iommu M4U_PORT_DISP_OVL0>; - mediatek,larb = <&larb0>; };

ovl1: ovl@1400d000 { @@ -101,7 +98,6 @@ ovl1: ovl@1400d000 { power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; clocks = <&mmsys CLK_MM_DISP_OVL1>; iommus = <&iommu M4U_PORT_DISP_OVL1>; - mediatek,larb = <&larb4>; };

rdma0: rdma@1400e000 { @@ -111,7 +107,6 @@ rdma0: rdma@1400e000 { power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; clocks = <&mmsys CLK_MM_DISP_RDMA0>; iommus = <&iommu M4U_PORT_DISP_RDMA0>; - mediatek,larb = <&larb0>; mediatek,rdma-fifosize = <8192>; };

@@ -122,7 +117,6 @@ rdma1: rdma@1400f000 { power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; clocks = <&mmsys CLK_MM_DISP_RDMA1>; iommus = <&iommu M4U_PORT_DISP_RDMA1>; - mediatek,larb = <&larb4>; };

rdma2: rdma@14010000 { @@ -132,7 +126,6 @@ rdma2: rdma@14010000 { power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; clocks = <&mmsys CLK_MM_DISP_RDMA2>; iommus = <&iommu M4U_PORT_DISP_RDMA2>; - mediatek,larb = <&larb4>; };

wdma0: wdma@14011000 { @@ -142,7 +135,6 @@ wdma0: wdma@14011000 { power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; clocks = <&mmsys CLK_MM_DISP_WDMA0>; iommus = <&iommu M4U_PORT_DISP_WDMA0>; - mediatek,larb = <&larb0>; };

wdma1: wdma@14012000 { @@ -152,7 +144,6 @@ wdma1: wdma@14012000 { power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; clocks = <&mmsys CLK_MM_DISP_WDMA1>; iommus = <&iommu M4U_PORT_DISP_WDMA1>; - mediatek,larb = <&larb4>; };

color0: color@14013000 { diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml index df1d677098fd..9b179bb44dfb 100644 --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml @@ -61,12 +61,6 @@ properties: description: | Describes the physical address space of IOMMU maps to memory.

- mediatek,larb: - $ref: /schemas/types.yaml#/definitions/phandle - maxItems: 1 - description: | - Must contain the local arbiters in the current Socs. - mediatek,vpu: $ref: /schemas/types.yaml#/definitions/phandle maxItems: 1 @@ -137,7 +131,6 @@ examples: <0x16027800 0x800>, /*VP8_VL*/ <0x16028400 0x400>; /*VP9_VD*/ interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_LOW>; - mediatek,larb = <&larb1>; iommus = <&iommu M4U_PORT_HW_VDEC_MC_EXT>, <&iommu M4U_PORT_HW_VDEC_PP_EXT>, <&iommu M4U_PORT_HW_VDEC_AVC_MV_EXT>, diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml index b72c1a50e89e..e7b65a91c92c 100644 --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml @@ -53,12 +53,6 @@ properties: description: | Describes the physical address space of IOMMU maps to memory.

- mediatek,larb: - $ref: /schemas/types.yaml#/definitions/phandle - maxItems: 1 - description: | - Must contain the local arbiters in the current Socs. - mediatek,vpu: $ref: /schemas/types.yaml#/definitions/phandle maxItems: 1 @@ -157,7 +151,6 @@ examples: <&iommu M4U_PORT_VENC_REF_CHROMA>, <&iommu M4U_PORT_VENC_NBM_RDMA>, <&iommu M4U_PORT_VENC_NBM_WDMA>; - mediatek,larb = <&larb3>; mediatek,vpu = <&vpu>; clocks = <&topckgen CLK_TOP_VENC_SEL>; clock-names = "venc_sel"; @@ -178,7 +171,6 @@ examples: <&iommu M4U_PORT_VENC_CUR_CHROMA_SET2>, <&iommu M4U_PORT_VENC_REF_LUMA_SET2>, <&iommu M4U_PORT_VENC_REC_CHROMA_SET2>; - mediatek,larb = <&larb5>; mediatek,vpu = <&vpu>; clocks = <&topckgen CLK_TOP_VENC_LT_SEL>; clock-names = "venc_lt_sel"; diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml index 9b87f036f178..052e752157b4 100644 --- a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml +++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml @@ -42,13 +42,6 @@ properties: power-domains: maxItems: 1

- mediatek,larb: - $ref: '/schemas/types.yaml#/definitions/phandle' - description: | - Must contain the local arbiters in the current Socs, see - Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml - for details. - iommus: maxItems: 2 description: | @@ -63,7 +56,6 @@ required: - clocks - clock-names - power-domains - - mediatek,larb - iommus

additionalProperties: false @@ -83,7 +75,6 @@ examples: clock-names = "jpgdec-smi", "jpgdec"; power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>; - mediatek,larb = <&larb2>; iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>, <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>; }; diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml index fcd9b829e036..8bfdfdfaba59 100644 --- a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml +++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml @@ -35,13 +35,6 @@ properties: power-domains: maxItems: 1

- mediatek,larb: - $ref: '/schemas/types.yaml#/definitions/phandle' - description: | - Must contain the local arbiters in the current Socs, see - Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml - for details. - iommus: maxItems: 2 description: | @@ -56,7 +49,6 @@ required: - clocks - clock-names - power-domains - - mediatek,larb - iommus

additionalProperties: false @@ -75,7 +67,6 @@ examples: clocks = <&imgsys CLK_IMG_VENC>; clock-names = "jpgenc"; power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>; - mediatek,larb = <&larb2>; iommus = <&iommu MT2701_M4U_PORT_JPGENC_RDMA>, <&iommu MT2701_M4U_PORT_JPGENC_BSDMA>; }; diff --git a/Documentation/devicetree/bindings/media/mediatek-mdp.txt b/Documentation/devicetree/bindings/media/mediatek-mdp.txt index caa24943da33..53ef26e2c857 100644 --- a/Documentation/devicetree/bindings/media/mediatek-mdp.txt +++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt @@ -27,9 +27,6 @@ Required properties (DMA function blocks, child node): - iommus: should point to the respective IOMMU block with master port as argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. -- mediatek,larb: must contain the local arbiters in the current Socs, see - Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml - for details.

Example: mdp_rdma0: rdma@14001000 { @@ -40,7 +37,6 @@ Example: <&mmsys CLK_MM_MUTEX_32K>; power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; iommus = <&iommu M4U_PORT_MDP_RDMA0>; - mediatek,larb = <&larb0>; mediatek,vpu = <&vpu>; };

@@ -51,7 +47,6 @@ Example: <&mmsys CLK_MM_MUTEX_32K>; power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; iommus = <&iommu M4U_PORT_MDP_RDMA1>; - mediatek,larb = <&larb4>; };

mdp_rsz0: rsz@14003000 { @@ -81,7 +76,6 @@ Example: clocks = <&mmsys CLK_MM_MDP_WDMA>; power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; iommus = <&iommu M4U_PORT_MDP_WDMA>; - mediatek,larb = <&larb0>; };

mdp_wrot0: wrot@14007000 { @@ -90,7 +84,6 @@ Example: clocks = <&mmsys CLK_MM_MDP_WROT0>; power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; iommus = <&iommu M4U_PORT_MDP_WROT0>; - mediatek,larb = <&larb0>; };

mdp_wrot1: wrot@14008000 { @@ -99,5 +92,4 @@ Example: clocks = <&mmsys CLK_MM_MDP_WROT1>; power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; iommus = <&iommu M4U_PORT_MDP_WROT1>; - mediatek,larb = <&larb4>; };

Prepare for adding device_link.

The iommu consumer should use device_link to connect with the smi-larb(supplier). then the smi-larb should run before the iommu consumer. Here we delay the iommu driver until the smi driver is ready, then all the iommu consumers always are after the smi driver.

When there is no this patch, if some consumer drivers run before smi-larb, the supplier link_status is DL_DEV_NO_DRIVER(0) in the device_link_add, then device_links_driver_bound will use WARN_ON to complain that the link_status of supplier is not right.

device_is_bound may be more elegant here. but it is not allowed to EXPORT from https://lore.kernel.org/patchwork/patch/1334670/.

Signed-off-by: Yong Wu yong.wu@mediatek.com Tested-by: Frank Wunderlich frank-w@public-files.de # BPI-R2/MT7623 Acked-by: Joerg Roedel jroedel@suse.de Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com --- drivers/iommu/mtk_iommu.c | 4 ++++ drivers/iommu/mtk_iommu_v1.c | 4 ++++ 2 files changed, 8 insertions(+)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 77ae20ff9b35..5cff5bc556d4 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -850,6 +850,10 @@ static int mtk_iommu_probe(struct platform_device *pdev) of_node_put(larbnode); return -ENODEV; } + if (!plarbdev->dev.driver) { + of_node_put(larbnode); + return -EPROBE_DEFER; + } data->larb_imu[id].dev = &plarbdev->dev;

component_match_add_release(dev, &match, release_of, diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index 68bf02f87cfd..4089077256f4 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -606,6 +606,10 @@ static int mtk_iommu_probe(struct platform_device *pdev) of_node_put(larbnode); return -ENODEV; } + if (!plarbdev->dev.driver) { + of_node_put(larbnode); + return -EPROBE_DEFER; + } data->larb_imu[i].dev = &plarbdev->dev;

component_match_add_release(dev, &match, release_of,

MediaTek IOMMU has already added device_link between the consumer and smi-larb device. If the jpg device calls the pm_runtime_get_sync, the smi-larb's pm_runtime_get_sync also be called automatically.

After removing the larb_get operations, then mtk_jpeg_clk_init is also unnecessary. Remove it too.

CC: Rick Chang rick.chang@mediatek.com CC: Xia Jiang xia.jiang@mediatek.com Signed-off-by: Yong Wu yong.wu@mediatek.com Reviewed-by: Evan Green evgreen@chromium.org Acked-by: Rick Chang rick.chang@mediatek.com Reviewed-by: Dafna Hirschfeld dafna.hirschfeld@collabora.com Tested-by: Frank Wunderlich frank-w@public-files.de # BPI-R2/MT7623 Acked-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com --- .../media/platform/mtk-jpeg/mtk_jpeg_core.c | 45 +------------------ .../media/platform/mtk-jpeg/mtk_jpeg_core.h | 2 - 2 files changed, 2 insertions(+), 45 deletions(-)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c index af994b9913a6..1e29ca0aad77 100644 --- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c +++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c @@ -22,7 +22,6 @@ #include <media/v4l2-ioctl.h> #include <media/videobuf2-core.h> #include <media/videobuf2-dma-contig.h> -#include <soc/mediatek/smi.h>

#include "mtk_jpeg_enc_hw.h" #include "mtk_jpeg_dec_hw.h" @@ -1055,10 +1054,6 @@ static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg) { int ret;

- ret = mtk_smi_larb_get(jpeg->larb); - if (ret) - dev_err(jpeg->dev, "mtk_smi_larb_get larbvdec fail %d\n", ret); - ret = clk_bulk_prepare_enable(jpeg->variant->num_clks, jpeg->variant->clks); if (ret) @@ -1069,7 +1064,6 @@ static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg) { clk_bulk_disable_unprepare(jpeg->variant->num_clks, jpeg->variant->clks); - mtk_smi_larb_put(jpeg->larb); }

static irqreturn_t mtk_jpeg_enc_done(struct mtk_jpeg_dev *jpeg) @@ -1284,35 +1278,6 @@ static struct clk_bulk_data mtk_jpeg_clocks[] = { { .id = "jpgenc" }, };

-static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg) -{ - struct device_node *node; - struct platform_device *pdev; - int ret; - - node = of_parse_phandle(jpeg->dev->of_node, "mediatek,larb", 0); - if (!node) - return -EINVAL; - pdev = of_find_device_by_node(node); - if (WARN_ON(!pdev)) { - of_node_put(node); - return -EINVAL; - } - of_node_put(node); - - jpeg->larb = &pdev->dev; - - ret = devm_clk_bulk_get(jpeg->dev, jpeg->variant->num_clks, - jpeg->variant->clks); - if (ret) { - dev_err(&pdev->dev, "failed to get jpeg clock:%d\n", ret); - put_device(&pdev->dev); - return ret; - } - - return 0; -} - static void mtk_jpeg_job_timeout_work(struct work_struct *work) { struct mtk_jpeg_dev *jpeg = container_of(work, struct mtk_jpeg_dev, @@ -1333,11 +1298,6 @@ static void mtk_jpeg_job_timeout_work(struct work_struct *work) v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx); }

-static inline void mtk_jpeg_clk_release(struct mtk_jpeg_dev *jpeg) -{ - put_device(jpeg->larb); -} - static int mtk_jpeg_probe(struct platform_device *pdev) { struct mtk_jpeg_dev *jpeg; @@ -1374,7 +1334,8 @@ static int mtk_jpeg_probe(struct platform_device *pdev) goto err_req_irq; }

- ret = mtk_jpeg_clk_init(jpeg); + ret = devm_clk_bulk_get(jpeg->dev, jpeg->variant->num_clks, + jpeg->variant->clks); if (ret) { dev_err(&pdev->dev, "Failed to init clk, err %d\n", ret); goto err_clk_init; @@ -1440,7 +1401,6 @@ static int mtk_jpeg_probe(struct platform_device *pdev) v4l2_device_unregister(&jpeg->v4l2_dev);

err_dev_register: - mtk_jpeg_clk_release(jpeg);

err_clk_init:

@@ -1458,7 +1418,6 @@ static int mtk_jpeg_remove(struct platform_device *pdev) video_device_release(jpeg->vdev); v4l2_m2m_release(jpeg->m2m_dev); v4l2_device_unregister(&jpeg->v4l2_dev); - mtk_jpeg_clk_release(jpeg);

return 0; } diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h index 595f7f10c9fd..3e4811a41ba2 100644 --- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h +++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h @@ -85,7 +85,6 @@ struct mtk_jpeg_variant { * @alloc_ctx: videobuf2 memory allocator's context * @vdev: video device node for jpeg mem2mem mode * @reg_base: JPEG registers mapping - * @larb: SMI device * @job_timeout_work: IRQ timeout structure * @variant: driver variant to be used */ @@ -99,7 +98,6 @@ struct mtk_jpeg_dev { void *alloc_ctx; struct video_device *vdev; void __iomem *reg_base; - struct device *larb; struct delayed_work job_timeout_work; const struct mtk_jpeg_variant *variant; };

From: Yongqiang Niu yongqiang.niu@mediatek.com

Prepare for smi cleaning up "mediatek,larb".

Display use the dispsys device to call pm_rumtime_get_sync before. This patch add pm_runtime_xx with ovl and rdma device whose nodes has "iommus" property, then display could help pm_runtime_get for smi via ovl or rdma device.

CC: CK Hu ck.hu@mediatek.com Signed-off-by: Yongqiang Niu yongqiang.niu@mediatek.com Signed-off-by: Yong Wu yong.wu@mediatek.com (Yong: Use pm_runtime_resume_and_get instead of pm_runtime_get_sync) Acked-by: Chun-Kuang Hu chunkuang.hu@kernel.org Tested-by: Frank Wunderlich frank-w@public-files.de # BPI-R2/MT7623 Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 8 +++++++- drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 9 ++++++++- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 13 ++++++++++++- 3 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 5326989d5206..716eac6831f2 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -11,6 +11,7 @@ #include <linux/of_device.h> #include <linux/of_irq.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/soc/mediatek/mtk-cmdq.h>

#include "mtk_disp_drv.h" @@ -414,9 +415,13 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev) return ret; }

+ pm_runtime_enable(dev); + ret = component_add(dev, &mtk_disp_ovl_component_ops); - if (ret) + if (ret) { + pm_runtime_disable(dev); dev_err(dev, "Failed to add component: %d\n", ret); + }

return ret; } @@ -424,6 +429,7 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev) static int mtk_disp_ovl_remove(struct platform_device *pdev) { component_del(&pdev->dev, &mtk_disp_ovl_component_ops); + pm_runtime_disable(&pdev->dev);

return 0; } diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c index 75d7f45579e2..251f034acb09 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c @@ -9,6 +9,7 @@ #include <linux/of_device.h> #include <linux/of_irq.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/soc/mediatek/mtk-cmdq.h>

#include "mtk_disp_drv.h" @@ -327,9 +328,13 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev)

platform_set_drvdata(pdev, priv);

+ pm_runtime_enable(dev); + ret = component_add(dev, &mtk_disp_rdma_component_ops); - if (ret) + if (ret) { + pm_runtime_disable(dev); dev_err(dev, "Failed to add component: %d\n", ret); + }

return ret; } @@ -338,6 +343,8 @@ static int mtk_disp_rdma_remove(struct platform_device *pdev) { component_del(&pdev->dev, &mtk_disp_rdma_component_ops);

+ pm_runtime_disable(&pdev->dev); + return 0; }

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index a4e80e499674..ce5bbd6918cf 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -554,9 +554,17 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc, return; }

+ ret = pm_runtime_resume_and_get(comp->dev); + if (ret < 0) { + mtk_smi_larb_put(comp->larb_dev); + DRM_DEV_ERROR(comp->dev, "Failed to enable power domain: %d\n", ret); + return; + } + ret = mtk_crtc_ddp_hw_init(mtk_crtc); if (ret) { mtk_smi_larb_put(comp->larb_dev); + pm_runtime_put(comp->dev); return; }

@@ -569,7 +577,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc, { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0]; - int i; + int i, ret;

DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id); if (!mtk_crtc->enabled) @@ -593,6 +601,9 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc, drm_crtc_vblank_off(crtc); mtk_crtc_ddp_hw_fini(mtk_crtc); mtk_smi_larb_put(comp->larb_dev); + ret = pm_runtime_put(comp->dev); + if (ret < 0) + DRM_DEV_ERROR(comp->dev, "Failed to disable power domain: %d\n", ret);

mtk_crtc->enabled = false; }

MediaTek IOMMU has already added the device_link between the consumer and smi-larb device. If the vcodec devices call the pm_runtime_get_sync, the smi-larb's pm_runtime_get_sync also be called automatically.

CC: Tiffany Lin tiffany.lin@mediatek.com CC: Irui Wang irui.wang@mediatek.com Signed-off-by: Yong Wu yong.wu@mediatek.com Reviewed-by: Evan Green evgreen@chromium.org Acked-by: Tiffany Lin tiffany.lin@mediatek.com Reviewed-by: Dafna Hirschfeld dafna.hirschfeld@collabora.com --- .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 2 - .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c | 1 - .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 41 +++-------------- .../platform/mtk-vcodec/mtk_vcodec_drv.h | 3 -- .../platform/mtk-vcodec/mtk_vcodec_enc.c | 1 - .../platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 2 - .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 45 +++---------------- 7 files changed, 12 insertions(+), 83 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c index 86b639d82be8..8d11510e441e 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -450,7 +450,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev) destroy_workqueue(dev->core_workqueue); err_res: pm_runtime_disable(dev->pm.dev); - put_device(dev->pm.larbvdec); err_dec_pm: mtk_vcodec_fw_release(dev->fw_handler); return ret; @@ -494,7 +493,6 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev)

v4l2_device_unregister(&dev->v4l2_dev); pm_runtime_disable(dev->pm.dev); - put_device(dev->pm.larbvdec); mtk_vcodec_fw_release(dev->fw_handler); return 0; } diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c index 7b5da3e4cac2..8d2a641d92f1 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c @@ -184,7 +184,6 @@ static int mtk_vdec_hw_probe(struct platform_device *pdev) return 0; err: pm_runtime_disable(subdev_dev->pm.dev); - put_device(subdev_dev->pm.larbvdec); return ret; }

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c index 44035a50e335..7e0c2644bf7b 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c @@ -9,7 +9,6 @@ #include <linux/of_address.h> #include <linux/of_platform.h> #include <linux/pm_runtime.h> -#include <soc/mediatek/smi.h>

#include "mtk_vcodec_dec_hw.h" #include "mtk_vcodec_dec_pm.h" @@ -17,25 +16,11 @@

int mtk_vcodec_init_dec_clk(struct platform_device *pdev, struct mtk_vcodec_pm *pm) { - struct device_node *node; - struct platform_device *larb_pdev; struct mtk_vcodec_clk *dec_clk; struct mtk_vcodec_clk_info *clk_info; - int i = 0, ret = 0; + int i = 0, ret;

dec_clk = &pm->vdec_clk; - node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0); - if (!node) { - mtk_v4l2_err("of_parse_phandle mediatek,larb fail!"); - return -1; - } - - larb_pdev = of_find_device_by_node(node); - of_node_put(node); - if (WARN_ON(!larb_pdev)) - return -1; - - pm->larbvdec = &larb_pdev->dev; pm->dev = &pdev->dev;

dec_clk->clk_num = @@ -44,14 +29,11 @@ int mtk_vcodec_init_dec_clk(struct platform_device *pdev, struct mtk_vcodec_pm * dec_clk->clk_info = devm_kcalloc(&pdev->dev, dec_clk->clk_num, sizeof(*clk_info), GFP_KERNEL); - if (!dec_clk->clk_info) { - ret = -ENOMEM; - goto put_device; - } + if (!dec_clk->clk_info) + return -ENOMEM; } else { mtk_v4l2_err("Failed to get vdec clock count"); - ret = -EINVAL; - goto put_device; + return -EINVAL; }

for (i = 0; i < dec_clk->clk_num; i++) { @@ -60,22 +42,18 @@ int mtk_vcodec_init_dec_clk(struct platform_device *pdev, struct mtk_vcodec_pm * "clock-names", i, &clk_info->clk_name); if (ret) { mtk_v4l2_err("Failed to get clock name id = %d", i); - goto put_device; + return ret; } clk_info->vcodec_clk = devm_clk_get(&pdev->dev, clk_info->clk_name); if (IS_ERR(clk_info->vcodec_clk)) { mtk_v4l2_err("devm_clk_get (%d)%s fail", i, clk_info->clk_name); - ret = PTR_ERR(clk_info->vcodec_clk); - goto put_device; + return PTR_ERR(clk_info->vcodec_clk); } }

return 0; -put_device: - put_device(pm->larbvdec); - return ret; } EXPORT_SYMBOL_GPL(mtk_vcodec_init_dec_clk);

@@ -157,13 +135,7 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_dev *vdec_dev, int hw_idx) } }

- ret = mtk_smi_larb_get(pm->larbvdec); - if (ret) { - mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret); - goto error; - } return; - error: for (i -= 1; i >= 0; i--) clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk); @@ -191,7 +163,6 @@ void mtk_vcodec_dec_clock_off(struct mtk_vcodec_dev *vdec_dev, int hw_idx) }

dec_clk = &pm->vdec_clk; - mtk_smi_larb_put(pm->larbvdec); for (i = dec_clk->clk_num - 1; i >= 0; i--) clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk); } diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h index 94b47b7c912b..813901c4be5e 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h @@ -214,10 +214,7 @@ struct mtk_vcodec_clk { */ struct mtk_vcodec_pm { struct mtk_vcodec_clk vdec_clk; - struct device *larbvdec; - struct mtk_vcodec_clk venc_clk; - struct device *larbvenc; struct device *dev; };

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c index 7457451ebff0..8998244ea671 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c @@ -8,7 +8,6 @@ #include <media/v4l2-event.h> #include <media/v4l2-mem2mem.h> #include <media/videobuf2-dma-contig.h> -#include <soc/mediatek/smi.h> #include <linux/pm_runtime.h>

#include "mtk_vcodec_drv.h" diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c index fc40a02af942..dbb0134e8cc0 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c @@ -371,7 +371,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev) v4l2_device_unregister(&dev->v4l2_dev); err_res: pm_runtime_disable(dev->pm.dev); - put_device(dev->pm.larbvenc); err_enc_pm: mtk_vcodec_fw_release(dev->fw_handler); return ret; @@ -461,7 +460,6 @@ static int mtk_vcodec_enc_remove(struct platform_device *pdev)

v4l2_device_unregister(&dev->v4l2_dev); pm_runtime_disable(dev->pm.dev); - put_device(dev->pm.larbvenc); mtk_vcodec_fw_release(dev->fw_handler); return 0; } diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c index 0825c6ec4eb7..7055954eb2af 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c @@ -8,57 +8,35 @@ #include <linux/of_address.h> #include <linux/of_platform.h> #include <linux/pm_runtime.h> -#include <soc/mediatek/smi.h>

#include "mtk_vcodec_enc_pm.h" #include "mtk_vcodec_util.h"

int mtk_vcodec_init_enc_clk(struct mtk_vcodec_dev *mtkdev) { - struct device_node *node; struct platform_device *pdev; struct mtk_vcodec_pm *pm; struct mtk_vcodec_clk *enc_clk; struct mtk_vcodec_clk_info *clk_info; - int ret = 0, i = 0; - struct device *dev; + int ret, i;

pdev = mtkdev->plat_dev; pm = &mtkdev->pm; memset(pm, 0, sizeof(struct mtk_vcodec_pm)); pm->dev = &pdev->dev; - dev = &pdev->dev; enc_clk = &pm->venc_clk;

- node = of_parse_phandle(dev->of_node, "mediatek,larb", 0); - if (!node) { - mtk_v4l2_err("no mediatek,larb found"); - return -ENODEV; - } - pdev = of_find_device_by_node(node); - of_node_put(node); - if (!pdev) { - mtk_v4l2_err("no mediatek,larb device found"); - return -ENODEV; - } - pm->larbvenc = &pdev->dev; - pdev = mtkdev->plat_dev; - pm->dev = &pdev->dev; - enc_clk->clk_num = of_property_count_strings(pdev->dev.of_node, "clock-names"); if (enc_clk->clk_num > 0) { enc_clk->clk_info = devm_kcalloc(&pdev->dev, enc_clk->clk_num, sizeof(*clk_info), GFP_KERNEL); - if (!enc_clk->clk_info) { - ret = -ENOMEM; - goto put_larbvenc; - } + if (!enc_clk->clk_info) + return -ENOMEM; } else { mtk_v4l2_err("Failed to get venc clock count"); - ret = -EINVAL; - goto put_larbvenc; + return -EINVAL; }

for (i = 0; i < enc_clk->clk_num; i++) { @@ -67,23 +45,18 @@ int mtk_vcodec_init_enc_clk(struct mtk_vcodec_dev *mtkdev) "clock-names", i, &clk_info->clk_name); if (ret) { mtk_v4l2_err("venc failed to get clk name %d", i); - goto put_larbvenc; + return ret; } clk_info->vcodec_clk = devm_clk_get(&pdev->dev, clk_info->clk_name); if (IS_ERR(clk_info->vcodec_clk)) { mtk_v4l2_err("venc devm_clk_get (%d)%s fail", i, clk_info->clk_name); - ret = PTR_ERR(clk_info->vcodec_clk); - goto put_larbvenc; + return PTR_ERR(clk_info->vcodec_clk); } }

return 0; - -put_larbvenc: - put_device(pm->larbvenc); - return ret; }

void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm) @@ -100,11 +73,6 @@ void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm) } }

- ret = mtk_smi_larb_get(pm->larbvenc); - if (ret) { - mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret); - goto clkerr; - } return;

clkerr: @@ -117,7 +85,6 @@ void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm) struct mtk_vcodec_clk *enc_clk = &pm->venc_clk; int i = 0;

- mtk_smi_larb_put(pm->larbvenc); for (i = enc_clk->clk_num - 1; i >= 0; i--) clk_disable_unprepare(enc_clk->clk_info[i].vcodec_clk); }

After adding device_link between the IOMMU consumer and smi, the mediatek,larb is unnecessary now.

CC: Matthias Brugger matthias.bgg@gmail.com Signed-off-by: Yong Wu yong.wu@mediatek.com Reviewed-by: Evan Green evgreen@chromium.org Tested-by: Frank Wunderlich frank-w@public-files.de # BPI-R2/MT7623 --- arch/arm/boot/dts/mt2701.dtsi | 2 -- arch/arm/boot/dts/mt7623n.dtsi | 5 ----- 2 files changed, 7 deletions(-)

diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi index 4776f85d6d5b..ef583cfd3baf 100644 --- a/arch/arm/boot/dts/mt2701.dtsi +++ b/arch/arm/boot/dts/mt2701.dtsi @@ -564,7 +564,6 @@ clock-names = "jpgdec-smi", "jpgdec"; power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>; - mediatek,larb = <&larb2>; iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>, <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>; }; @@ -577,7 +576,6 @@ clocks = <&imgsys CLK_IMG_VENC>; clock-names = "jpgenc"; power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>; - mediatek,larb = <&larb2>; iommus = <&iommu MT2701_M4U_PORT_JPGENC_RDMA>, <&iommu MT2701_M4U_PORT_JPGENC_BSDMA>; }; diff --git a/arch/arm/boot/dts/mt7623n.dtsi b/arch/arm/boot/dts/mt7623n.dtsi index bcb0846e29fd..3adab5cd1fef 100644 --- a/arch/arm/boot/dts/mt7623n.dtsi +++ b/arch/arm/boot/dts/mt7623n.dtsi @@ -121,7 +121,6 @@ clock-names = "jpgdec-smi", "jpgdec"; power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>; - mediatek,larb = <&larb2>; iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>, <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>; }; @@ -144,7 +143,6 @@ interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_LOW>; clocks = <&mmsys CLK_MM_DISP_OVL>; iommus = <&iommu MT2701_M4U_PORT_DISP_OVL_0>; - mediatek,larb = <&larb0>; };

rdma0: rdma@14008000 { @@ -154,7 +152,6 @@ interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_LOW>; clocks = <&mmsys CLK_MM_DISP_RDMA>; iommus = <&iommu MT2701_M4U_PORT_DISP_RDMA>; - mediatek,larb = <&larb0>; };

wdma@14009000 { @@ -164,7 +161,6 @@ interrupts = <GIC_SPI 154 IRQ_TYPE_LEVEL_LOW>; clocks = <&mmsys CLK_MM_DISP_WDMA>; iommus = <&iommu MT2701_M4U_PORT_DISP_WDMA>; - mediatek,larb = <&larb0>; };

bls: pwm@1400a000 { @@ -215,7 +211,6 @@ interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_LOW>; clocks = <&mmsys CLK_MM_DISP_RDMA1>; iommus = <&iommu MT2701_M4U_PORT_DISP_RDMA1>; - mediatek,larb = <&larb0>; };

dpi0: dpi@14014000 {