From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F8BF1F3D50; Tue, 17 Dec 2024 14:33:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734445999; cv=none; b=WRavWU4ucbhhgbCcX0+DkRgENqAAjjaVdiAObzPemjexckBJCFUZWCjQThHQPM0C2QhjLwJIJGjJpRbDDRtTz15ZoSeXYiJ706fIpzfiRek272tH+0a+EzyfJj1koIIpUcI8CCXxyO+9gUuY+uAnFCYYOOJuYKervxV47H82GOY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734445999; c=relaxed/simple; bh=T7qgal3YAgYxvdv4wdowLqbXzjVg1bdGafPFLHnupHg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=itVqza/z+86rnEFFyJ3dz13V9ajJGV6zxJ56SNJjltcE8NHS2O2Dpf+9RIxpP6WyUlC+lJbpzudddg21RxBDjrVnqfOzgtCvEdsniQJ8YR81wHGw5Q5zXdrAtHGQNSydFJ30GG5Du6jJTLZs47k1qNHBshvZWkSUjJ6YayG0MVM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Cy9ouM1y; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Cy9ouM1y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CF494C4CED3; Tue, 17 Dec 2024 14:33:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734445998; bh=T7qgal3YAgYxvdv4wdowLqbXzjVg1bdGafPFLHnupHg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Cy9ouM1yGW3hMREEViJa2DLshacyA3d/rjpnnQ+5Aq5n+4VPcfjZUYdl1SsRhinH/ GdUXssSOGHNxDEUOQGH+Sv/HaU1a41bY21qlAl8oIUzTrriBf0+ncRqlzD6OgZ2eUL +oU4TJMLRvsXoLEvzF6KayvgZuSKGc2vr/ijiinS2gNsIiOVjfL2iBJ5VDRQZXUJ/7 XbXdxk3N8OX1RuQz+6W3HwBqoKfZsp/E0lIlZB6Soy/Y5dEfWi1ggs8bYGUEyrY8e+ EaMw2ctQKVOuF65opBqzJILnk1cjT9WIN5r61d1FSwm4/knZbiJ7KaA6j9VmUPEXY/ 8PDsF8vwuPuzg== Date: Tue, 17 Dec 2024 08:33:16 -0600 From: "Rob Herring (Arm)" To: David Lechner Cc: devicetree@vger.kernel.org, Mark Brown , Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= , linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, Jonathan Cameron , Lars-Peter Clausen , Krzysztof Kozlowski , Conor Dooley , Michael Hennerich , Martin Sperl , linux-iio@vger.kernel.org, linux-pwm@vger.kernel.org, Nuno =?iso-8859-1?Q?S=E1?= , David Jander Subject: Re: [PATCH v6 06/17] spi: dt-bindings: axi-spi-engine: add SPI offload properties Message-ID: <173444599609.1628708.4430713259293370272.robh@kernel.org> References: <20241211-dlech-mainline-spi-engine-offload-2-v6-0-88ee574d5d03@baylibre.com> <20241211-dlech-mainline-spi-engine-offload-2-v6-6-88ee574d5d03@baylibre.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241211-dlech-mainline-spi-engine-offload-2-v6-6-88ee574d5d03@baylibre.com> On Wed, 11 Dec 2024 14:54:43 -0600, David Lechner wrote: > The AXI SPI Engine has support for hardware offloading capabilities. > This includes a connection to a DMA controller for streaming RX or TX > data and a trigger input for starting execution of the SPI message > programmed in the offload. It is designed to support up to 32 offload > instances. > > Signed-off-by: David Lechner > --- > > v6 changes: > * Drop type $ref for trigger-sources property since it is defined > elsewhere now > * Undo v5 changes that limited the number of offloads to 1 > > v5 changes: > * Also document offload0-tx DMA names since the hardware can support > that now. > * Limit the number of offloads to 1 for now since it would require > significant hardware changes to actually support more than that. > > v4 changes: > * Dropped #spi-offload-cells property. > * Changed subject line. > > v3 changes: > * Added #spi-offload-cells property. > * Added properties for triggers and RX data stream connected to DMA. > > v2 changes: > * This is basically a new patch. It partially replaces "dt-bindings: > iio: offload: add binding for PWM/DMA triggered buffer". > * The controller no longer has an offloads object node and the > spi-offloads property is now a standard SPI peripheral property. > --- > .../bindings/spi/adi,axi-spi-engine.yaml | 24 ++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > Reviewed-by: Rob Herring (Arm)