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Date: Tue, 8 Jul 2014 17:58:06 +0530 From: Sekhar Nori <nsekhar@...com> To: Nick Dyer <nick.dyer@...ev.co.uk>, Dmitry Torokhov <dmitry.torokhov@...il.com> CC: Yufeng Shen <miletus@...gle.com>, Daniel Kurtz <djkurtz@...omium.org>, Henrik Rydberg <rydberg@...omail.se>, Joonyoung Shim <jy0922.shim@...sung.com>, Alan Bowens <Alan.Bowens@...el.com>, <linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Peter Meerwald <pmeerw@...erw.net>, Benson Leung <bleung@...omium.org>, Olof Johansson <olofj@...omium.org> Subject: Re: [PATCH 00/15] atmel_mxt_ts - device tree, bootloader, etc On Monday 07 July 2014 05:08 PM, Nick Dyer wrote: > On 07/07/14 12:21, Sekhar Nori wrote: >> I was unable to get the touchscreen working on my board after applying >> just these patches. It does work correctly with your for-next branch so >> I guess I need to wait for you to post the rest of your patches too. >> >> Here are the relevant messages at boot. Full boot log is available here >> (in case you want to have a look): http://paste.ubuntu.com/7759703/ >> >> [ 2.315717] atmel_mxt_ts 0-004a: Direct firmware load failed with error -2 >> [ 2.322949] atmel_mxt_ts 0-004a: Falling back to user helper >> [ 5.934924] atmel_mxt_ts 0-004a: Wait for completion timed out. >> [ 5.941237] atmel_mxt_ts 0-004a: Warning: Info CRC error - device=0x000000 file=0x8EE45C >> [ 7.294769] atmel_mxt_ts 0-004a: Wait for completion timed out. >> [ 7.300976] atmel_mxt_ts 0-004a: Resetting chip >> [ 10.574729] atmel_mxt_ts 0-004a: Wait for completion timed out. >> [ 10.581010] atmel_mxt_ts 0-004a: Error -110 updating config >> [ 10.626788] atmel_mxt_ts 0-004a: Family: 128 Variant: 1 Firmware V1.6.AB Objects: 17 >> >> One key difference is that these patches try to load the config at >> probe where as with your -next branch that is avoided in the DT case. >> This is also missing the new update_cfg sysfs interface (which I guess >> you will post as follow-on patches). >> >> The wait_for_completion() times out because the interrupt never >> arrives. Even later when testing using evtest, I do not see interrupts >> coming. There are only two interrupts that arrive during boot and it >> stays that way. There is something going on with the way interrupts are >> handled. I havent debugged further yet. This problem is not there with >> your for-next branch. > > Thanks for trying this, apologies that it didn't work. > > Looking at it, I've a feeling that this is the solution for the issue you see: > https://github.com/ndyer/linux/commit/4e8f8d56361b09a2a Okay, I rebased that patch onto this series, but it did not solve the problem. > > Although, the fact that it says the device is reporting the Info CRC to be > 0x000000 is rather odd, as well. Thats because the device was not configured at factory (I was using the board for the first time). Once I run the kernel from your for-next branch, this messages disappear since I guess the configuration is successfully flashed by that kernel. > It would be useful if you could turn on all the debug in the driver and > re-test (#define DEBUG 1 at the top). However, if you don't have time, I > will try and reproduce on my test system. Here are the messages I see: [ 2.257611] atmel_mxt_ts 0-004a: T5 Start:242 Size:9 Instances:1 Report IDs:0-0 [ 2.265261] atmel_mxt_ts 0-004a: T6 Start:251 Size:6 Instances:1 Report IDs:1-1 [ 2.272966] atmel_mxt_ts 0-004a: T38 Start:257 Size:8 Instances:1 Report IDs:0-0 [ 2.280726] atmel_mxt_ts 0-004a: T7 Start:265 Size:3 Instances:1 Report IDs:0-0 [ 2.288389] atmel_mxt_ts 0-004a: T8 Start:268 Size:8 Instances:1 Report IDs:0-0 [ 2.296045] atmel_mxt_ts 0-004a: T9 Start:276 Size:31 Instances:1 Report IDs:2-11 [ 2.303905] atmel_mxt_ts 0-004a: T15 Start:307 Size:11 Instances:1 Report IDs:12-12 [ 2.311935] atmel_mxt_ts 0-004a: T18 Start:318 Size:2 Instances:1 Report IDs:0-0 [ 2.319695] atmel_mxt_ts 0-004a: T19 Start:320 Size:16 Instances:1 Report IDs:13-13 [ 2.327723] atmel_mxt_ts 0-004a: T20 Start:336 Size:12 Instances:1 Report IDs:14-14 [ 2.335732] atmel_mxt_ts 0-004a: T22 Start:348 Size:17 Instances:1 Report IDs:15-15 [ 2.343761] atmel_mxt_ts 0-004a: T23 Start:365 Size:15 Instances:1 Report IDs:16-16 [ 2.351789] atmel_mxt_ts 0-004a: T24 Start:380 Size:19 Instances:1 Report IDs:17-20 [ 2.359812] atmel_mxt_ts 0-004a: T25 Start:399 Size:14 Instances:1 Report IDs:21-21 [ 2.367844] atmel_mxt_ts 0-004a: T27 Start:413 Size:7 Instances:1 Report IDs:22-22 [ 2.375763] atmel_mxt_ts 0-004a: T28 Start:420 Size:6 Instances:1 Report IDs:23-23 [ 2.383705] atmel_mxt_ts 0-004a: T37 Start:112 Size:130 Instances:1 Report IDs:0-0 [ 2.401277] atmel_mxt_ts 0-004a: T6 Config Checksum: 0x6BC1AB [ 2.407301] atmel_mxt_ts 0-004a: T6 Status 0x90 RESET CAL [ 2.413026] atmel_mxt_ts 0-004a: T6 Status 0x00 OK [ 2.424854] atmel_mxt_ts 0-004a: Direct firmware load failed with error -2 [ 2.462113] atmel_mxt_ts 0-004a: Falling back to user helper [ 5.698524] atmel_mxt_ts 0-004a: Initialized power cfg: ACTV 255, IDLE 32 [ 5.712014] atmel_mxt_ts 0-004a: Touchscreen size X799Y479 [ 5.742180] atmel_mxt_ts 0-004a: Family: 128 Variant: 1 Firmware V1.6.AB Objects: 17 Full testing log here: http://paste.ubuntu.com/7765352/ Thanks, Sekhar -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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