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SubjectRe: [PATCH v5 22/23] drivers/fsi: Add hub master support
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On 4/5/17 11:36 AM, Randy Dunlap wrote:
> 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.

Will correct.

Thanks,
Chris
>
>> + ---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
>

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