Re: [PATCH 09/11] mfd: flexcard: add DMA ringbuffer demux driver

From: Lee Jones
Date: Mon Mar 30 2015 - 05:02:41 EST


On Wed, 25 Mar 2015, Holger Dengler wrote:

> From: Benedikt Spranger <b.spranger@xxxxxxxxxxxxx>
>
> The Flexcard interface design split packet receive and transmit. All
> received packets and card status information are multiplexed with a
> Flexcard specific protocol and handled through a DMA capable ringbuffer.
> The TX path has to poke each available component separate.
>
> Add a Flexcard DMA ringbuffer driver and packet demultiplexer.

These are not MFD devices.

> Signed-off-by: Holger Dengler <dengler@xxxxxxxxxxxxx>
> Signed-off-by: Benedikt Spranger <b.spranger@xxxxxxxxxxxxx>
> cc: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
> cc: Lee Jones <lee.jones@xxxxxxxxxx>
> ---
> drivers/mfd/Kconfig | 9 ++
> drivers/mfd/flexcard/Makefile | 3 +
> drivers/mfd/flexcard/dma.c | 286 ++++++++++++++++++++++++++++++++++++

drivers/dma?

> drivers/mfd/flexcard/flexcard-dma.h | 207 ++++++++++++++++++++++++++
> drivers/mfd/flexcard/parser.c | 193 ++++++++++++++++++++++++

drivers/pci?

> include/linux/mfd/flexcard.h | 5 +
> 6 files changed, 703 insertions(+)
> create mode 100644 drivers/mfd/flexcard/dma.c
> create mode 100644 drivers/mfd/flexcard/flexcard-dma.h
> create mode 100644 drivers/mfd/flexcard/parser.c

</review>

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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