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linux-purism-librem5dev: Disable CONFIG_FW_LOADER_USER_HELPER (!237)

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When working on Librem5 devkit we had issue with touchscreen driver not
probing fast enough and taking ~70 seconds to finish initialization.

Touchscreen driver for the Librem5 devkit uses goodix driver, roughly
speaking device initialization is done in following sequence,

- start kernel and load driver
- attempt to request firmware
- if no firmware is found use defaults value
- initialize touchscreen

Now, on Librem 5 no firmware is provided (of course!) which makes 2nd
step 4 step process,

- attempt to load firmware at initramfs level
- fail, wait for it userspace to finish loading
- userspace attempts to load firmware
- fail and tell kernel to stop looking for firmware.

Step 2 to 4 is done after udev is loaded in userspace, which easily
takes 40-50 seconds. Since Purism Librem 5 devkit is never going to have
userspace level firmware, it is safe bet to disable this altogether.

[skip ci] tested locally and this is going to take more then hour on CI
and fail
This commit is contained in:
Bhushan Shah 2019-02-25 20:29:00 +00:00 committed by Martijn Braam
parent a38f1fb092
commit e9f8f27b51
2 changed files with 3 additions and 4 deletions
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4
device/linux-purism-librem5dev/APKBUILD
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@ -3,7 +3,7 @@
pkgname="linux-purism-librem5dev"
pkgver=4.18.11
pkgrel=1
pkgrel=2
pkgdesc="Purism Librem 5 devkit kernel fork"
arch="aarch64"
_carch="arm64"
@ -73,4 +73,4 @@ package() {
}
sha512sums="51fd07402e63ce7538e65c01deba51faaf60cbb853d0af2d362aceb710e608d0cdee4b53524d32b4217b7da7cc827270c427207e7bd34b8b5f87b43791aa81db linux-purism-librem5dev-bcc9a4658624009ce94abeb19b1be07b55d6da21.tar.gz
e8871767aac7895de98769e70b6eef791a78d3eb41c73570e35dd82795e89f1da2eaa96014abf54c50ba6bae55ac02c1aea19ca40a0ded3bd23560fdedb3e932 config-purism-librem5dev.aarch64"
b5d9f27826355814479cad9673452bc648733b3779c2856eed7d60127c8cd83cdf3c23ad2fab6c81a1adf05ef2d14dac36250053cfa2e730659059e5bdb7c093 config-purism-librem5dev.aarch64"

3
device/linux-purism-librem5dev/config-purism-librem5dev.aarch64
View File

@ -1099,8 +1099,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
# CONFIG_FW_LOADER_USER_HELPER is not set
CONFIG_WANT_DEV_COREDUMP=y
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_DEV_COREDUMP=y