[PATCH v6, 10/15] media: mtk-vcodec: Add new interface to lock different hardware
From: Yunfei Dong <yunfei.dong@mediatek.com>
Date: 2021-09-01 08:33:05
Also in:
dri-devel, linux-arm-kernel, linux-devicetree, linux-media, lkml
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
For add new hardware, not only need to lock lat hardware, also need to lock core hardware in case of different instance start to decoder at the same time. Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com> --- drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c | 4 ++-- drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 6 +++--- drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
index 2b334a8a81c6..130ecef2e766 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c@@ -105,12 +105,12 @@ static int vidioc_decoder_cmd(struct file *file, void *priv, void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx) { - mutex_unlock(&ctx->dev->dec_mutex); + mutex_unlock(&ctx->dev->dec_mutex[ctx->hw_id]); } void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx) { - mutex_lock(&ctx->dev->dec_mutex); + mutex_lock(&ctx->dev->dec_mutex[ctx->hw_id]); } void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx)
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 109f7de126a1..e448cb238c7f 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c@@ -373,7 +373,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev) struct video_device *vfd_dec; phandle rproc_phandle; enum mtk_vcodec_fw_type fw_type; - int ret; + int i, ret; dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev)
@@ -405,8 +405,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev) goto err_dec_pm; } - mutex_init(&dev->dec_mutex); - mutex_init(&dev->dev_mutex); + for (i = 0; i < MTK_VDEC_HW_MAX; i++) + mutex_init(&dev->dec_mutex[i]); spin_lock_init(&dev->irqlock); snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s",
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index a8242389ad24..f1e63acaec76 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h@@ -496,7 +496,7 @@ struct mtk_vcodec_dev { int dec_irq; int enc_irq; - struct mutex dec_mutex; + struct mutex dec_mutex[MTK_VDEC_HW_MAX]; struct mutex enc_mutex; struct mtk_vcodec_pm pm;
--
2.25.1
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