kernel/linux.git - Linux kernel stable tree (mirror)

Age	Commit message (Collapse)	Author	Files	Lines
2022-10-17	ASoC: kirkwood: enable Kirkwood driver for Armada 38x platforms	Marcin Wojtas	1	-1/+13
	The audio unit of Marvell Armada38x SoC is similar to the ones comprised by other Marvell SoCs (Kirkwood, Dove and Armada 370). Therefore KW audio driver can be used to support it and this commit adds new compatible string to identify Armada 38x variant. Two new memory regions are added: first one for PLL configuration and the second one for choosing one of audio I/O modes (I2S or S/PDIF). For the latter purpose a new optional DT property is added ('spdif-mode'). kirkwood-i2s driver is extended by adding a new init function for Armada 38x flavor and also a routine that enables PLL output (i.e. MCLK) configuration. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Tested-by: Star_Automation <star@marvell.com> Reviewed-by: Nadav Haklai <nadavh@marvell.com> Reviewed-by: Lior Amsalem <alior@marvell.com> Tested-by: Lior Amsalem <alior@marvell.com> Signed-off-by: Hezi Shahmoon <hezi@marvell.com> Reviewed-by: Neta Zur Hershkovits <neta@marvell.com> [pali: Fix support for pre-38x SoCs] Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20220926110533.13475-1-pali@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2014-02-11	ASoC: kirkwood: enable Kirkwood driver for mvebu platforms	Thomas Petazzoni	1	-0/+1
	The audio unit found in the Armada 370 SoC is similar to the one used in the Marvell Kirkwood and Marvell Dove SoCs. Therefore, this commit allows the Kirkwood audio driver to be built on mvebu platforms, and adds an additional compatible string to identify the Armada 370 variant of the audio unit. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-06	ASoC: kirkwood: change the compatible string of the kirkwood-i2s driver	Thomas Petazzoni	1	-4/+8
	The compatible string of the kirkwood-i2s driver was chosen as "marvell,mvebu-audio". Using such a compatible string is not a good idea, since "mvebu" is the name of a large family of SOCs, in which new, unknown SOCs will be coming in the future. It is therefore impossible to know what will be evolutions of this hardware block in the next generations of the SOCs. For this reason, the recommandation for compatible strings of on-SOCs devices has always been to use the name of the oldest SOC that has the hardware block. New SOCs that have an exactly compatible hardware block can reference it using the same compatible string. See [1], [2] and [3] for various cases were this suggestion was made, including from Rob Herring, a Device Tree binding maintainer. As an example, there are already small differences between current generations: * On Kirkwood, only one interrupt is used for audio. * On Dove, two interrupts are used, one for audio data and one for error reporting. In the near future, I'll be adding audio support to Armada 370, which allows has the same hardware block (but maybe with minor variants). Therefore, this patch changes the driver to accept "marvell,kirkwood-audio" and "marvell,dove-audio" as compatible strings instead of the too-generic "marvell,mvebu-audio". The reason for the two different compatible strings is the difference in the number of interrupts used by the two SOCs for audio. This Device Tree binding has never been part of a Linux kernel stable release so far, so it can be changed now without breaking backward compatibility. [1] http://lists.infradead.org/pipermail/linux-mtd/2012-March/040417.html [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-April/161065.html [3] http://lists.infradead.org/pipermail/linux-arm-kernel/2012-March/087702.html Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-22	ASoc: kirkwood: add DT support to the mvebu audio subsystem	Jean-Francois Moine	1	-0/+29
	This patch adds DT support to the audio subsystem of the mvebu family (Kirkwood, Dove, Armada 370). Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mark Brown <broonie@linaro.org>