| commit | 381754fbb43024778951c5638a38d258cf385c30 | [log] [tgz] |
|---|---|---|
| author | Patryk Duda <pdk@semihalf.com> | Tue May 18 14:07:58 2021 |
| committer | Commit Bot <commit-bot@chromium.org> | Tue Jun 22 23:16:41 2021 |
| tree | 9ebc001cbe4277f1a080f053e7fe5845931dfc4b | |
| parent | 6e0f88341f1fc761f11f9d7d694f9bb8103aa118 [diff] |
FROMLIST: platform/chrome: cros_ec_proto: Send command again when timeout occurs Sometimes kernel is trying to probe Fingerprint MCU (FPMCU) when it hasn't initialized SPI yet. This can happen because FPMCU is restarted during system boot and kernel can send message in short window eg. between sysjump to RW and SPI initialization. Cc: <stable@vger.kernel.org> # 4.4+ Signed-off-by: Patryk Duda <pdk@semihalf.com> (am from https://lore.kernel.org/patchwork/patch/1431296/) (also found at https://lore.kernel.org/r/20210518140758.29318-1-pdk@semihalf.com) BUG=b:185467818 TEST=Test on CoachZ SKU1 in secure (normal) mode. Shutdown device first and then press power button (don't use 'reboot' command). Make sure that kernel recognizes FPMCU. Change-Id: I71ff910a0d102cf903832216c4925864a61e40f3 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2878837 Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Alexandru M Stan <amstan@chromium.org> Reviewed-by: Craig Hesling <hesling@chromium.org> Tested-by: Patryk Duda <pdk@semihalf.com> Commit-Queue: Patryk Duda <pdk@semihalf.com> Commit-Queue: Alexandru M Stan <amstan@chromium.org> (cherry picked from commit 47f31a43eea653004995d086194223f451bb21ba) Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2965134 Commit-Queue: Kai Yee Wan <kyw@google.com> Tested-by: Kai Yee Wan <kyw@google.com> Auto-Submit: Kai Yee Wan <kyw@google.com>