Re: Goodix touchscreen works intermittently, fails reading config info.
From: Brad Baker <hidden>
Date: 2016-10-03 00:53:49
On Wed, Sep 14, 2016 at 6:29 AM, Tirdea, Irina [off-list ref] wrote:
quoted
-----Original Message----- From: linux-input-owner@vger.kernel.org [mailto:linux-input-owner@vger.kernel.org] On Behalf Of Brad Baker Sent: 13 September, 2016 6:05 To: Tirdea, Irina Cc: bastien nocera; linux-input@vger.kernel.org Subject: Re: Goodix touchscreen works intermittently, fails reading config info. Irina, a little more info on the symptoms. The user reports the touchscreen works when restarting but fails when powering on. He says pretty much 100% of the time. The log is the same...Hi Brad, Thanks for all the information you provided. I have already replied on the Bugzilla thread with some patches that enable reset for the device. Regards, Irina
Hi Irina, please see my updates to your Bugzilla comments. In the directions for generating the firmware file I did not understand this: "set Config_Fresh to 1 and generate the binary config firmware image" Where is Config_Fresh set? Do I set it to 1 at the top of the shell script?... https://github.com/blocksonic/gt9xx/blob/device-tree/goodix-generate-fw.sh Also, your comment was not clear to me... "You might need to revert the patch that enables reset for the Chuwi tablet [3]" Under what conditions do I need to move these changes? The user is reporting the following dmesg output with your latest code... [ 8.635097] goodix_backport: loading out-of-tree module taints kernel. [ 8.635878] goodix_backport: module verification failed: signature and/or required key missing - tainting kernel [ 8.644537] Goodix-TS i2c-GDIX1001:00: I2C Address: 0x14 [ 8.644549] Goodix-TS i2c-GDIX1001:00: Applying gpios quirk [ 8.679120] EFI Variables Facility v0.08 2004-May-17 [ 8.690345] pstore: using zlib compression [ 8.690382] pstore: Registered efi as persistent store backend [ 8.741171] Goodix-TS i2c-GDIX1001:00: i2c test failed attempt 1: -121 [ 8.772461] Goodix-TS i2c-GDIX1001:00: i2c test failed attempt 2: -121 [ 8.797575] Goodix-TS i2c-GDIX1001:00: I2C communication failure: -121 [ 8.819003] SSE version of gcm_enc/dec engaged. [ 8.821731] Goodix-TS: probe of i2c-GDIX1001:00 failed with error -121 Please see my latest posts on Bugzilla. Thanks, -Brad-