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SubjectRe: [PATCH v5 22/23] drivers/fsi: Add hub master support
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On 04/04/17 19:06, Christopher Bostic wrote:
> From: Chris Bostic <cbostic@linux.vnet.ibm.com>
>
> Add an engine driver to expose a "hub" FSI master - which has a set of
> control registers in the engine address space, and uses a chunk of the
> slave address space for actual FSI communication.
>
> Additional changes from Jeremy Kerr <jk@ozlabs.org>.
>
> Signed-off-by: Chris Bostic <cbostic@linux.vnet.ibm.com>
> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
> Signed-off-by: Joel Stanley <joel@jms.id.au>
> ---
> drivers/fsi/Kconfig | 9 ++
> drivers/fsi/Makefile | 1 +
> drivers/fsi/fsi-master-hub.c | 327 +++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 337 insertions(+)
> create mode 100644 drivers/fsi/fsi-master-hub.c
>
> diff --git a/drivers/fsi/Kconfig b/drivers/fsi/Kconfig
> index 0fa265c..e1156b4 100644
> --- a/drivers/fsi/Kconfig
> +++ b/drivers/fsi/Kconfig
> @@ -18,6 +18,15 @@ config FSI_MASTER_GPIO
> ---help---
> This option enables a FSI master driver using GPIO lines.
>
> +config FSI_MASTER_HUB
> + tristate "FSI hub master"
> + depends on FSI

redundant again.

> + ---help---
> + This option enables a FSI hub master driver. Hub is a type of FSI
> + master that is connected to the upstream master via a slave. Hubs
> + allow chaining of FSI links to an arbitrary depth. This allows for
> + a high target device fanout.
> +
> config FSI_SCOM
> tristate "SCOM FSI client device driver"
> depends on FSI


--
~Randy

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