Re: [PATCH v3 0/5] platform/chrome: Fix MEC concurrency problems for Framework Laptop

From: patchwork-bot+chrome-platform
Date: Wed Jun 05 2024 - 23:30:54 EST


Hello:

This series was applied to chrome-platform/linux.git (for-next)
by Tzung-Bi Shih <tzungbi@xxxxxxxxxx>:

On Wed, 5 Jun 2024 07:33:46 +0100 you wrote:
> Framework Laptops with the Microchip EC have a problem where the EC
> "stops working" after a while. Symptoms include the Fn key not
> working, and "bad packet checksum" errors appearing in the system log.
>
> The problem is caused by ACPI code which accesses the Microchip EC
> (MEC) memory using the Microchip EMI protocol. It uses an AML mutex to
> prevent concurrent access. But the cros_ec_lpc driver is not aware of
> this mutex. The ACPI code and LPC driver both attempt to talk to the
> EC at the same time, messing up communication with the EC.
>
> [...]

Here is the summary with links:
- [v3,1/5] platform/chrome: cros_ec_lpc: MEC access can return error code
https://git.kernel.org/chrome-platform/c/68dbac0a58ef
- [v3,2/5] platform/chrome: cros_ec_lpc: MEC access can use an AML mutex
https://git.kernel.org/chrome-platform/c/60c7df66450e
- [v3,3/5] platform/chrome: cros_ec_lpc: Add a new quirk for ACPI id
https://git.kernel.org/chrome-platform/c/040159e0912c
- [v3,4/5] platform/chrome: cros_ec_lpc: Add a new quirk for AML mutex
https://git.kernel.org/chrome-platform/c/38c31b1d737b
- [v3,5/5] platform/chrome: cros_ec_lpc: Add quirks for Framework Laptop
https://git.kernel.org/chrome-platform/c/04ca0a51f1e6

You are awesome, thank you!
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