From mboxrd@z Thu Jan 1 00:00:00 1970 From: rdunlap@infradead.org (Randy Dunlap) Date: Wed, 5 Apr 2017 09:35:40 -0700 Subject: [PATCH v5 19/23] drivers/fsi: Add GPIO based FSI master In-Reply-To: <20170405020607.79939-20-cbostic@linux.vnet.ibm.com> References: <20170405020607.79939-1-cbostic@linux.vnet.ibm.com> <20170405020607.79939-20-cbostic@linux.vnet.ibm.com> Message-ID: <5d173f9c-e01c-6093-16ab-d114857009b2@infradead.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 04/04/17 19:06, Christopher Bostic wrote: > From: Chris Bostic > > Implement a FSI master using GPIO. Will generate FSI protocol for > read and write commands to particular addresses. Sends master command > and waits for and decodes a slave response. > > Includes changes from Edward A. James and Jeremy > Kerr . > > Signed-off-by: Edward A. James > Signed-off-by: Jeremy Kerr > Signed-off-by: Chris Bostic > Signed-off-by: Joel Stanley > --- > drivers/fsi/Kconfig | 11 + > drivers/fsi/Makefile | 1 + > drivers/fsi/fsi-master-gpio.c | 610 ++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 622 insertions(+) > create mode 100644 drivers/fsi/fsi-master-gpio.c > > diff --git a/drivers/fsi/Kconfig b/drivers/fsi/Kconfig > index 04c1a0e..9cf8345 100644 > --- a/drivers/fsi/Kconfig > +++ b/drivers/fsi/Kconfig > @@ -9,4 +9,15 @@ config FSI > ---help--- > FSI - the FRU Support Interface - is a simple bus for low-level > access to POWER-based hardware. > + > +if FSI > + > +config FSI_MASTER_GPIO > + tristate "GPIO-based FSI master" > + depends on FSI && GPIOLIB depends on FSI is redundant since "if FSI" does the same thing. > + ---help--- > + This option enables a FSI master driver using GPIO lines. > + > +endif > + -- ~Randy