From fea017a99ba5e28b23f8249c04b2f475e4ed1fb3 Mon Sep 17 00:00:00 2001 From: Kendra Moore Date: Sun, 20 Apr 2025 21:02:05 -0400 Subject: [PATCH] docs: dmaengine: add explanation for DMA_ASYNC_TX capability This patch replaces the TODO for DMA_ASYNC_TX in the DMA engine provider documentation. The flag is automatically set by the DMA framework when a device supports key asynchronous memory-to-memory operations such as memcpy, memset, xor, pq, xor_val, and pq_val. It must not be set by drivers directly. Signed-off-by: Kendra Moore Signed-off-by: Jonathan Corbet Message-ID: <20250421010205.84719-1-kendra.j.moore3443@gmail.com> --- Documentation/driver-api/dmaengine/provider.rst | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/Documentation/driver-api/dmaengine/provider.rst b/Documentation/driver-api/dmaengine/provider.rst index 3085f8b460fa5..8f0910668ca31 100644 --- a/Documentation/driver-api/dmaengine/provider.rst +++ b/Documentation/driver-api/dmaengine/provider.rst @@ -217,10 +217,12 @@ Currently, the types available are: - DMA_ASYNC_TX - - Must not be set by the device, and will be set by the framework - if needed + - The device supports asynchronous memory-to-memory operations, + including memcpy, memset, xor, pq, xor_val, and pq_val. - - TODO: What is it about? + - This capability is automatically set by the DMA engine + framework and must not be configured manually by device + drivers. - DMA_SLAVE -- 2.47.2