drm/vc4: hdmi: Rework hdmi_enable_4kp60 detection code

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In order to support higher HDMI frequencies, users have to set the
hdmi_enable_4kp60 parameter in their config.txt file.

This will have the side-effect of raising the maximum of the core clock,
tied to the HVS, and managed by the HVS driver.

However, we are querying this in the HDMI driver by poking into the HVS
structure to get our struct clk handle.

Let's make this part of the HVS bind implementation to have all the core
clock related setup in the same place.

Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20220815-rpi-fix-4k-60-v5-5-fe9e7ac8b111@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

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This commit is contained in:

Maxime Ripard 2022-10-27 14:52:45 +02:00

parent dd51d3a33c

commit 2a001ca00a

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4 changed files with 37 additions and 19 deletions

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10

drivers/gpu/drm/vc4/vc4_drv.h

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15

drivers/gpu/drm/vc4/vc4_hdmi.c

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8

drivers/gpu/drm/vc4/vc4_hdmi.h

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23

drivers/gpu/drm/vc4/vc4_hvs.c

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