#aarch64-laptops on 2025-03-27 — irc logs at oftc.irclog.whitequark.org

2024-07-16 04:52 ChanServ changed the topic of #aarch64-laptops to: Linux support for AArch64 Laptops (Chrome OS Trogdor Devices - Asus NovaGo TP370QL - HP Envy x2 - Lenovo Mixx 630 - Lenovo Yoga C630 - Lenovo ThinkPad X13s - and various other snapdragon laptops) - https://oftc.irclog.whitequark.org/aarch64-laptops

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04:09 <akaWolf0> hi, guys. anyone had a problem with Linux kernel doesn't see a disk? bootloader working fine, initrd is loading, but then it can't mount rootfs because it completely can't see the internal disk. I didn't update kernel, system packages. just after one of the cycle of shutdown/turn-on it stopped to work.

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04:15 <akaWolf0> Windows is working fine.

04:15 <akaWolf0> https://ibb.co/6RVJJ8Xq I don't know if that is related the error with psci

04:17 <akaWolf0> yeah, at x13s

04:22 <steev> do you have the pci and nvme drivers in the initramfs?

04:23 <akaWolf0> well I didn't change literally nothing and it worked well before

04:24 <akaWolf0> only one reason of change I can imagine -- Windows updates/drivers/firmware

04:25 <akaWolf0> so since it worked before I guess those drivers should be in initramfs

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04:39 <akaWolf0> steev, should I check for those drivers to be sure?

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04:49 <akaWolf0> is there any breaking change in the firmware maybe? so it's just incompatible...

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05:02 <JensGlathe[m]> Do you have the /etc/initramfs.tools/modules file?

05:06 <akaWolf0> you mean in rootfs? or in the loaded initramfs?

05:09 <akaWolf0> 5.19 ready image doesn't work, 6.2 my builded kernel doesn't work, 6.10.6 doesn't work

05:09 <JensGlathe[m]> it will be part of the generated initramfs.

05:10 <akaWolf0> MODULES=(nvme phy_qcom_qmp_pcie pcie_qcom i2c_hid_of i2c_qcom_geni leds_qcom_lpg pwm_bl qrtr pmic_glink_altmode gpio_sbu_mux phy_qcom_qmp_combo panel-edp msm phy_qcom_edp)

05:11 <akaWolf0> this is the config for the current latest kernel which I have (6.10.6)

05:12 <akaWolf0> but I didn't regenerate initramfs and it worked before

05:12 <akaWolf0> didn't rebuild kernel

05:16 <JensGlathe[m]> ok... booted from external USB stick / ssd?

05:16 <JensGlathe[m]> https://drive.google.com/file/d/1xWXGbhkeh9PO9RQSlG5UFuzOSwmbn9ib/view?usp=sharing

05:17 <JensGlathe[m]> I guess my modules has also pwm_bl, but this should only affect screen if at all

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05:22 <JensGlathe[m]> and no other kernel available on the disk?

05:23 <JensGlathe[m]> ok did the Windows update re-enable secure boot or something?

05:23 <JensGlathe[m]> since you mentioned firmware

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06:08 <steev> i don't see any bios update for my x13s

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06:51 <steev> did do a windows update which reset the boot config, but not secure boot; luckily i have a uefi shell entry in my grub config

07:11 <jhovold> dgilmore: that ath12k probe failure is unfortuantely a known regression, I've seen it a couple of times on the crd since 6.13

07:12 <jhovold> looks like a regression due to pwrctl/pwrseq

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08:18 <jhovold> dgilmore: just posted a patch that should enable the modem in your t14s, can you give it a try?

08:18 <jhovold> https://lore.kernel.org/lkml/20250327081427.19693-1-johan+linaro@kernel.org/

08:19 <jhovold> but before testing the patch, can you send the output of 'grep 221 /sys/kernel/debug/gpio'

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13:26 <dgilmore> jhovold: can test. booting it up now to get the output

13:27 <dgilmore> jhovold: gpio221 : out high func0 4mA no pull

13:34 <jhovold> perfect, thanks, and that's before adding the patch, right?

13:38 <dgilmore> yep. just building the kernel now

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14:29 <dgilmore> jhovold: the pcie port does not come up

14:30 <dgilmore> https://paste.centos.org/view/64ad171f is dmesg

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15:02 <jhovold> dgilmore: the controller should show up (it does here), are you sure you're using the right dtb?

15:05 <jhovold> dgilmore: this is your problem:

15:05 <jhovold> [ 28.793242] platform regulator-wwan: deferred probe pending: (reason unknown)

15:05 <jhovold> [ 28.793243] platform 1c00000.pci: deferred probe pending: platform: supplier regulator-wwan not ready

15:06 <dgilmore> I triple checked I had the right dtb

15:07 <dgilmore> I wonder if that goes back to

15:07 <dgilmore> [ 1.401029] qcom-pcie 1c08000.pci: supply vddpe-3v3 not found, using dummy regulator

15:08 <JensGlathe[m]> vreg_wwan: regulator-wwan {... (full message at <https://matrix.org/oftc/media/v1/media/download/AWKStZbfcI302tzpu9kncXMudwPgZfl4_D-8Oq0c6kkC7ssjBbzQhAj5XpV-zrjmwGnlMbUheYsjoYn5YCkh9k1CeWID8JIAAG1hdHJpeC5vcmcvcFRNeXN5bVNqS0RCT1BobEZHTkRPcVRh>)

15:09 <JensGlathe[m]> wwan_sw_en: wwan-sw-en-state {... (full message at <https://matrix.org/oftc/media/v1/media/download/AfTX77FfFb2Vu5bCj9qHqJVJ-IgV9OBeObv3tBeR7tyBe58W7CF84f4y16rl0UzbvOil0bNTopChBdhOHYq_QdhCeWID_ZlwAG1hdHJpeC5vcmcvcWZyb1JrZU5XVGtKbnFZSkVEZlZLdHJh>)

15:10 <JensGlathe[m]> both from the devkit, it has a LAN card in this slot

15:10 <dgilmore> nope that is just me looking in the wrong place

15:11 <jhovold> JensGlathe[m]: dgimlore's is testing a patch for t14s

15:11 <JensGlathe[m]> I know

15:12 <jhovold> no idea why the fixed regulator would fail to probe...

15:12 <JensGlathe[m]> the wwan is on pcie5, right?

15:12 <jhovold> yes

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16:13 <jhovold> dgilmore: I took a look at the fixed regulator code, but can't see why it would probe defer (without providing a reason)

16:14 <jhovold> perhaps you can add some printks to reg_fixed_voltage_probe() to figure out what is going on

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17:01 <dgilmore> Will take a look at the code

17:18 <JensGlathe[m]> I took another look at the devkit, there are a few dummy regulators, too.

17:18 * JensGlathe[m] uploaded an image: (110KiB) < https://matrix.org/oftc/media/v1/media/download/Ab9A4H_-xYXx4fEICVNsluIF7inP7tUop1j34pnlUI2suRn4LoV47iSsR8y2jk-AhqW4mBGtpaSuEcrrpBzZ1VFCeWILW4XwAG1hdHJpeC5vcmcvWmVzc2Z0Q3hweW5ibXFtb0VBWFJvcHJh >

17:20 <JensGlathe[m]> 1c00000 is pcie5

17:21 <JensGlathe[m]> 1c08000 is pcie4

17:21 <JensGlathe[m]> 1bc8000 is pcie6

17:22 <JensGlathe[m]> 🤔

17:22 <JensGlathe[m]> * 1bf8000 is pcie6

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22:17 <sre> Would it be easy to add support for the LED in the T14s lid (i.e. is it just a simple GPIO)? Would be nice to change the state based on system suspend.

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23:21 <steev> i don't believe so, i believe its hooked up to the ec and most devices don't have an ec driver (yet)

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