Re: [PATCH v2] HID: i2c-hid: Use block reads when possible to save power

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Hi

On 7/1/20 6:00 PM, Sultan Alsawaf wrote:
On Wed, Jul 01, 2020 at 11:04:01AM +0300, Jarkko Nikula wrote:
On 6/29/20 8:43 PM, Sultan Alsawaf wrote:
Hmm, for some reason in 5.8 I get the same problem, but 5.7 is fine. Could you
try this on 5.7 and see if it works?

In the meantime I'll bisect 5.8 to see why it's causing problems for me...

I see the same issue on top of v5.7:

Try reverting my "i2c: designware: Only check the first byte for SMBus block
read length" patch and apply the following change instead:

This combination (the diff and this HID patch) works on top of v5.7.

I tried also these other combinations:

v5.7
- HID patch + this diff -> ok
- HID patch -> not ok
- HID + acked i2c-dw patch -> acked i2c-dw patch doesn't apply

v5.8-rc3
- acked i2c-dw patch -> ok
- HID patch -> nok
- HID patch + acked i2c-dw patch -> nok
- HID patch + this diff -> diff doesn't apply

Hopefully gives some glue. I'll be out of office for a few weeks and unfortunately cannot test patches meanwhile.

Jarkko



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