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(parent: 42c681b) | patch
Juno: Change I2C bus speed used for HDMI to 100kHz.
authorLiviu Dudau <Liviu.Dudau@arm.com>
Fri, 3 Oct 2014 13:52:28 +0000 (14:52 +0100)
committerLiviu Dudau <Liviu.Dudau@arm.com>
Tue, 7 Oct 2014 11:11:02 +0000 (12:11 +0100)
commit9d6d1f614a5159f03634a010d47026c6876983cb
tree400e8d38de930a4f72639f2bece327ddd80068e8tree | snapshot
parent42c681b8e6478c20dd2a529698c25906ca222784commit | diff
Juno: Change I2C bus speed used for HDMI to 100kHz.

The I2C bus driver has problems under heavy load to keep the FIFO
filled. Combined with the auto-STOP setting baked into the hardware,
it spells disaster for conversations with HDMI chip, specially
around the boot time when we want to retrieve the EDID information.

Change the bus speed to 100kHz to increase the chance of servicing
the "FIFO empty" interrupt in time.

Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
arch/arm64/boot/dts/juno.dts diff | blob | history
Domain: System / Kernel;