forked from Minki/linux
2560da49de
Back in the early days when gru devices were still under development we found an issue where the WiFi reset line needed to be configured as early as possible during the boot process to avoid the WiFi module being in a bad state. We found that the way to get the kernel to do this in the earliest possible place was to configure this line in the pinctrl hogs, so that's what we did. For some history here you can see <http://crosreview.com/368770>. After the time that change landed in the kernel, we landed a firmware change to configure this line even earlier. See <http://crosreview.com/399919>. However, even after the firmware change landed we kept the kernel change to deal with the fact that some people working on devices might take a little while to update their firmware. At this there are definitely zero devices out in the wild that have firmware without the fix in it. Specifically looking in the firmware branch several critically important fixes for memory stability landed after the patch in coreboot and I know we didn't ship without those. Thus, by now, everyone should have the new firmware and it's safe to not have the kernel set this up in a pinctrl hog. Historically, even though it wasn't needed to have this in a pinctrl hog, we still kept it since it didn't hurt. Pinctrl would apply the default hog at bootup and then would never touch things again. That all changed with commit |
||
|---|---|---|
| .. | ||
| boot | ||
| configs | ||
| crypto | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| mm | ||
| net | ||
| xen | ||
| Kconfig | ||
| Kconfig.debug | ||
| Kconfig.platforms | ||
| Makefile | ||