MediaTek IOMMU has already added device_link between the consumer and smi-larb device. If the jpg device call 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: Dafna Hirschfeld dafna.hirschfeld@collabora.com # on mt8173 --- .../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 a89c7b206eef..4fea2c512434 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; @@ -1376,7 +1336,8 @@ 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; @@ -1442,7 +1403,6 @@ 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:
@@ -1460,7 +1420,6 @@ 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; };