#sm8250-mainline on 2024-07-13 — irc logs at oftc.irclog.whitequark.org

08:06 <kxxt[m]> Does anyone know how to get touchscreen information.... (full message at <https://matrix.org/_matrix/media/v3/download/matrix.org/FZgQLRVdHxAwcQnMjinWOCRE>)

08:15 <alexeymin-matrix> run deviceinfohw in android?

08:15 <kxxt[m]> alexeymin-matrix: It only shows fts_ts

08:16 <ungeskriptet[m]> kxxt: You can also check downstream dmesg and firmware if you touchscreen has one

08:16 <alexeymin-matrix> dmesg in twrp then

08:18 <kxxt[m]> ungeskriptet[m]: Thanks. I think I found it in a kernel header. https://github.com/LineageOS/android_kernel_xiaomi_sm8250/blob/0b967da514b28aef10da76ffe79e9d2320e35606/drivers/input/touchscreen/focaltech_touch_mi/focaltech_config.h#L98

08:18 <kxxt[m]> I didn't really expect it to be hardcoded

08:29 <ungeskriptet> Expect everything from downstream

08:29 <ungeskriptet> Sometimes the code quality is 🤡

08:42 <kxxt[m]> Hmm, what should I do to bring i2c up. I tried to enable gpi_dma1 and i2c13 by setting status.... (full message at <https://matrix.org/_matrix/media/v3/download/matrix.org/nHGikMieMOcDvSzrpSLzEEgJ>)

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16:27 <CalcProgrammer1[m]> also did you check the downstream dts? then search for the compatible string in the downstream kernel source, should lead you to the driver

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18:21 <chalkin[m]> Ungeskriptet, have you made any progress with your Lenovo J716F tablet on the QCA6390? I also tried running mainline on my Q706F tablet

18:24 <ungeskriptet> chalkin[m]: Pretty much only display and gpu is working. I'm busy with porting LineageOS right now but I'll try to get touchscreen working soon

18:54 * chalkin[m] uploaded an image: (14871KiB) < https://matrix.org/_matrix/media/v3/download/matrix.org/iVxXUYRqigSxTvIUTeMOowkh/ima_1fa6ab2.gif >

18:56 <chalkin[m]> TB-Q706F

18:56 <chalkin[m]> touchscreen is working. Tomorrow, I'll check the panel and WiFi.😋

19:37 <ungeskriptet> chalkin[m]: Oh cool

19:37 <ungeskriptet> Which touchscreen IC does it have?

19:51 * chalkin[m] uploaded an image: (3027KiB) < https://matrix.org/_matrix/media/v3/download/matrix.org/AJeYmlRwlbYvcTkoVdVofVpY/ima_d762917.png >

19:51 <chalkin[m]> the touch IC is the Goodix GT6975P, but I saw that the downstream kernel describes it as the GT9966. However, they both use the same Goodix-Berlin driver.

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20:19 <CalcProgrammer1[m]> I don't think the option to write regmap registers is enabled on xiaomi elish

20:19 <CalcProgrammer1[m]> it would help debugging the audio channel issue

20:21 <CalcProgrammer1[m]> ~ # echo -n "0x00004820 0x00000001" > /sys/kernel/debug/regmap/1-0040/registers

20:21 <CalcProgrammer1[m]> ash: write error: Invalid argument

20:21 <CalcProgrammer1[m]> the 0x00004820 register should be the RX channel select register in the CS35L41 codec/amp

20:22 <CalcProgrammer1[m]> the current value is 0x00000100

20:23 <CalcProgrammer1[m]> it seems like there are multiple RX channels to the ASP/DSP and that is mapping channel 0 to 0 (left) and channel 1 to 1 (right) but I can't figure out how to make the amp use the second ASP RX channel for the output

20:27 <CalcProgrammer1[m]> I think I need CONFIG_REGMAP_ALLOW_WRITE_DEBUGFS=y

20:36 <CalcProgrammer1[m]> oof they got rid of this config option 😐️😐️:|

20:36 <CalcProgrammer1[m]> now you have to edit the kernel source to enable it ewww

21:50 <CalcProgrammer1[m]> ok, finally got my modified kernel loaded

21:53 <CalcProgrammer1[m]> YES!

21:53 <CalcProgrammer1[m]> STEREO

21:54 <CalcProgrammer1[m]> /sys/kernel/debug/regmap/1-0040 # echo -n "0x00004820 0x00000002" > /sys/kernel/debug/regmap/1-0040/registers... (full message at <https://matrix.org/_matrix/media/v3/download/matrix.org/bvtLasWDajXWfClUJEPHGZcp>)

21:54 <CalcProgrammer1[m]> the right channel seems to be 2 not 1

21:54 <CalcProgrammer1[m]> 0 for left, 2 for right