diff options
| author | Dom Cobley <popcornmix@gmail.com> | 2022-10-27 14:52:46 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-10-28 13:03:20 +0200 |
| commit | f09e172da85854d71284638d8ca25f0b3a980cb6 (patch) | |
| tree | 26f3df569c6f922d5daff04ad36d7ab8e68fdb7e /drivers/gpu/drm/vc4/vc4_hvs.c | |
| parent | drm/vc4: hdmi: Rework hdmi_enable_4kp60 detection code (diff) | |
| download | linux-f09e172da85854d71284638d8ca25f0b3a980cb6.tar.xz linux-f09e172da85854d71284638d8ca25f0b3a980cb6.zip | |
drm/vc4: hdmi: Add more checks for 4k resolutions
At least the 4096x2160@60Hz mode requires some overclocking that isn't
available by default, even if hdmi_enable_4kp60 is enabled.
Let's add some logic to detect whether we can satisfy the core clock
requirements for that mode, and prevent it from being used otherwise.
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20220815-rpi-fix-4k-60-v5-6-fe9e7ac8b111@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_hvs.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hvs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c index fc4b7310bf63..c4453a5ae163 100644 --- a/drivers/gpu/drm/vc4/vc4_hvs.c +++ b/drivers/gpu/drm/vc4/vc4_hvs.c @@ -818,6 +818,9 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) if (max_rate >= 550000000) hvs->vc5_hdmi_enable_hdmi_20 = true; + if (max_rate >= 600000000) + hvs->vc5_hdmi_enable_4096by2160 = true; + hvs->max_core_rate = max_rate; ret = clk_prepare_enable(hvs->core_clk); |