diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0372-rpivid-Request-maximum-hevc-clock.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0372-rpivid-Request-maximum-hevc-clock.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0372-rpivid-Request-maximum-hevc-clock.patch b/target/linux/bcm27xx/patches-5.15/950-0372-rpivid-Request-maximum-hevc-clock.patch new file mode 100644 index 0000000000..241b1e7383 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0372-rpivid-Request-maximum-hevc-clock.patch @@ -0,0 +1,51 @@ +From 276aead8fe8654ba130f2bc866fd8aa7f236e507 Mon Sep 17 00:00:00 2001 +From: Dom Cobley <popcornmix@gmail.com> +Date: Mon, 22 Feb 2021 18:50:50 +0000 +Subject: [PATCH] rpivid: Request maximum hevc clock + +Query maximum and minimum clock from driver +and use those + +Signed-off-by: Dom Cobley <popcornmix@gmail.com> +--- + drivers/staging/media/rpivid/rpivid_video.c | 9 ++++++++- + 1 file changed, 8 insertions(+), 1 deletion(-) + +--- a/drivers/staging/media/rpivid/rpivid_video.c ++++ b/drivers/staging/media/rpivid/rpivid_video.c +@@ -490,6 +490,7 @@ static int rpivid_start_streaming(struct + { + struct rpivid_ctx *ctx = vb2_get_drv_priv(vq); + struct rpivid_dev *dev = ctx->dev; ++ long max_hevc_clock = clk_round_rate(dev->clock, ULONG_MAX); + int ret = 0; + + if (ctx->src_fmt.pixelformat != V4L2_PIX_FMT_HEVC_SLICE) +@@ -498,7 +499,7 @@ static int rpivid_start_streaming(struct + if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->start) + ret = dev->dec_ops->start(ctx); + +- ret = clk_set_rate(dev->clock, 500 * 1000 * 1000); ++ ret = clk_set_rate(dev->clock, max_hevc_clock); + if (ret) { + dev_err(dev->dev, "Failed to set clock rate\n"); + goto out; +@@ -519,12 +520,18 @@ static void rpivid_stop_streaming(struct + { + struct rpivid_ctx *ctx = vb2_get_drv_priv(vq); + struct rpivid_dev *dev = ctx->dev; ++ long min_hevc_clock = clk_round_rate(dev->clock, 0); ++ int ret; + + if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->stop) + dev->dec_ops->stop(ctx); + + rpivid_queue_cleanup(vq, VB2_BUF_STATE_ERROR); + ++ ret = clk_set_rate(dev->clock, min_hevc_clock); ++ if (ret) ++ dev_err(dev->dev, "Failed to set minimum clock rate\n"); ++ + clk_disable_unprepare(dev->clock); + } + |