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Add kernel 5.15 for RPI4 support

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Ycarus (Yannick Chabanois) 2021-11-24 18:32:01 +01:00
parent e961d478cd
commit df88a19bbd
638 changed files with 239907 additions and 0 deletions
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56
root/target/linux/bcm27xx/patches-5.15/0388-rpivid-Request-maximum-hevc-clock.patch Normal file
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@ -0,0 +1,56 @@
From 5bee2922512516d8ba3ea4d009cb40975d2230f0 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Mon, 22 Feb 2021 18:50:50 +0000
Subject: [PATCH 388/634] 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(-)
diff --git a/drivers/staging/media/rpivid/rpivid_video.c b/drivers/staging/media/rpivid/rpivid_video.c
index 3b9e51ca05b3..b377c17dfb21 100644
--- 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 vb2_queue *vq, unsigned int count)
{
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 vb2_queue *vq, unsigned int count)
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 vb2_queue *vq)
{
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);
}
--
2.33.1