Re: [PATCH 14/22 v4] Input: atmel_mxt_ts - don't re-read matrix after applying pdata
From: Daniel Kurtz <hidden>
Date: 2012-06-18 15:28:25
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On Mon, Jun 18, 2012 at 11:03 PM, Nick Dyer [off-list ref] wrote:
Daniel Kurtz wrote:quoted
The matrix x/y size in the Info ID Block represents the number of x/y trace lines on the device. There is no need to re-read them after applying pdata config, since pdata only configures the object table etnries. The matrix size read from the ID can only be updated by a firmware update.This isn't correct. For example, mXT224 can be configured as 16x14, 17x13, 18x12, etc. This only takes effect when the chip is reset, which is why it is necessary to re-read them after applying the config.
Ah, so is that what T46.1 (Mode) does? I hadn't played with that yet. Ok, I'll move this patch into the next series which cleans up all of the configuration stuff. -Dan
cheers -- Nick Dyer Software Engineer, ITDev Ltd Hardware and Software Development Consultancy Website: http://www.itdev.co.uk