tree 7299dc642a1add52341f36fbae4c008dbf8e1dcf
parent 02b880ed38e5047ef6c9c4324ce15403d2a45404
author Raul E Rangel <rrangel@chromium.org> 1587572034 -0600
committer Heiko Schocher <hs@denx.de> 1590637847 +0200

i2c: designware_i2c: Check if the device is powered

If the device doesn't return a version that means the device is
non-functional.

The dw_i2c_regs had invalid offsets for the version field. I got the
correct value from the DesignWare databook. It also matches what the
Picasso PPR says.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Tested on chromebook_coral:
Signed-off-by: Simon Glass <sjg@chromium.org>