drm/bridge: tc358768: fix TXTAGOCNT computation

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[ Upstream commit 3666aad818 ]

Correct computation of TXTAGOCNT register.

This register must be set to a value that ensure that the
TTA-GO period = (4 x TLPX)

with the actual value of TTA-GO being

4 x (TXTAGOCNT + 1) x (HSByteClk cycle)

Fixes: ff1ca6397b ("drm/bridge: Add tc358768 driver")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230427142934.55435-8-francesco@dolcini.it
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Francesco Dolcini 2023-04-27 16:29:32 +02:00 • committed by Greg Kroah-Hartman

parent 7b19315737

commit 010f68aecd

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/bridge/tc358768.c

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