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2 Commits

Author SHA1 Message Date
Kees Cook
699112f5e8 drm/i2c: tda9950: Remove VLA usage 
In the quest to remove all stack VLA usage from the kernel[1], this
sets the buffer to maximum size and adds a sanity check.

[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com

Cc: David Airlie <airlied@linux.ie>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Kees Cook <keescook@chromium.org>
 2018-08-13 13:40:52 -07:00
Russell King
f0316f9389 drm/i2c: tda9950: add CEC driver 
Add a CEC driver for the TDA9950, which is a stand-alone I2C CEC device,
but is also integrated into HDMI transceivers such as the TDA9989 and
TDA19989.

The TDA9950 contains a command processor which handles retransmissions
and the low level bus protocol.  The driver just has to read and write
the messages, and handle error conditions.

Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2018-04-24 10:44:25 +01:00