On 10/31/23 19:27, Patrick Williams wrote:
On Tue, Oct 31, 2023 at 04:01:10PM -0700, Guenter Roeck wrote:
On Tue, Oct 31, 2023 at 04:58:06PM +0800, Delphine CC Chiu wrote:
Add support for EMC1442 which is compatible with EMC1403.
Unfortunately, almost no information is available about this chip
except that it ships in an 8-pin package. Are you sure the chip
supports two external temperature sensors like EMC1403 ?
The chip numbering and the number of pins would suggest that
it only supports a single external temperature sensor,
which would make it compatible to emc1402/emc1422.
Guenter
The datasheet I've seen says:
The EMC1442 monitors two temperature channels (one
external and one internal).
Based on this, I agree that emc1403 seems wrong. The datasheet also
says:
Pin compatible with EMC1412
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@xxxxxxxxxx>
---
{ "emc1422", emc1402 },
{ "emc1423", emc1403 },
{ "emc1424", emc1404 },
+ { "emc1442", emc1403 },
So, emc1402?
At the very least, if you are willing to confirm that formally
if/when v2 is submitted.
I previously rejected a similar patch adding emc1444 because it was
impossible to get a datasheet to confirm that the chips are really
register compatible. No idea why that has to be so secretive. It is a
temperature sensor, for heaven's sake :-(
Guenter
