Re: [PATCH 1/1] platform/chrome: Probe multiple i2c adapters of the same name

From: Scot Doyle
Date: Tue Jun 10 2014 - 00:08:55 EST


That's a good point, I'll submit a new patch which documents this requirement. If this isn't a sufficiently robust solution, I understand.

On Mon, 9 Jun 2014, Mika Westerberg wrote:

On Fri, Jun 06, 2014 at 11:25:14PM +0100, Scot Doyle wrote:
The chromeos_laptop module probes the first i2c
adapter with a specific name
for expected hardware. However, the Acer C720 Chromebook has two i2c
adapters with the same name. This patch probes each i2c adapter with a
specific name in turn, until locating the expected hardware.

Signed-off-by: Scot Doyle <lkml14@xxxxxxxxxxxxx>
CC: Benson Leung <bleung@xxxxxxxxxxxx>
CC: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

I don't have anything against this approach.

One comment though, if you happen to have two devices with the same
address but in different buses this can go wrong. Not sure how likely
that will happen.
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