Messages in this thread | | | Subject | Re: [PATCH v13 1/3] platform/chrome: cros_ec_uart: Add transport layer | From | patchwork-bot+chrome-platform@kernel ... | Date | Wed, 28 Dec 2022 05:40:16 +0000 |
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Hello:
This series was applied to chrome-platform/linux.git (for-next) by Tzung-Bi Shih <tzungbi@kernel.org>:
On Tue, 27 Dec 2022 12:32:22 -0700 you wrote: > From: Bhanu Prakash Maiya <bhanumaiya@chromium.org> > > This patch does following: > 1. Adds a new cros-ec-uart driver. This driver can send EC requests on > UART and process response packets received on UART transport. > 2. Once probed, this driver will initialize the serdev device based on > the underlying information in the ACPI resource. After serdev device > properties are set, this driver will register itself cros-ec. > 3. High level driver can use this implementation to talk to ChromeOS > Embedded Controller device in case it supports UART as transport. > 4. When cros-ec driver initiates a request packet, outgoing message is > processed in buffer and sent via serdev. Once bytes are sent, driver > enables a wait_queue. > 5. Since ChromeOS EC device sends response asynchronously, AP's TTY > driver accumulates response bytes and calls the registered callback. > TTY driver can send multiple callback for bytes ranging from 1 to MAX > bytes supported by EC device. > 6. Driver waits for EC_MSG_DEADLINE_MS to collect and process received > bytes. It wakes wait_queue if expected bytes are received or else > wait_queue timeout. Based on the error condition, driver returns > data_len or error to cros_ec. > > [...]
Here is the summary with links: - [v13,1/3] platform/chrome: cros_ec_uart: Add transport layer https://git.kernel.org/chrome-platform/c/04a8bdd135cc - [v13,2/3] dt-bindings: mfd: cros-ec: Add UART compatible string https://git.kernel.org/chrome-platform/c/5be8cd61dcdd - [v13,3/3] platform/chrome: cros_ec_uart: Add DT enumeration support https://git.kernel.org/chrome-platform/c/c34fea225806
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