mbox series

[RFC,char-misc-next,0/5] misc: microchip: pci1xxxx: Add auxiliary bus driver and the GPIO driver for PIO function of pci1xxxx.

Message ID 20220804163219.921640-1-kumaravel.thiagarajan@microchip.com
Headers show
Series misc: microchip: pci1xxxx: Add auxiliary bus driver and the GPIO driver for PIO function of pci1xxxx. | expand

Message

Kumaravel Thiagarajan Aug. 4, 2022, 4:32 p.m. UTC
pci1xxxx is a PCIe switch with a multi-function endpoint on one of its
downstream ports. PIO function is one of the functions in the
multi-function endpoint. PIO function combines a GPIO controller and also
an interface to program pci1xxxx'x OTP & EEPROM. This patch adds an
auxiliary bus driver that enumerates separate child devices for gpio and
OTP/EEPROM interface and the gpio controller driver for the first child.

Kumaravel Thiagarajan (5):
  misc: microchip: pci1xxxx: load auxiliary bus driver for the PIO
    function in the multi-function endpoint of pci1xxxx device.
  misc: microchip: pci1xxxx: load gpio driver for the gpio controller
    auxiliary device enumerated by the auxiliary bus driver.
  misc: microchip: pci1xxxx: Add functions to configure gpio pins as
    input / output, get status, handle I/O for gpio pins.
  misc: microchip: pci1xxxx: Add gpio irq handler and irq helper
    functions irq_ack, irq_mask, irq_unmask and irq_set_type of
    irq_chip.
  misc: microchip: pci1xxxx: Add power management functions - suspend &
    resume handlers.

 MAINTAINERS                                   |   9 +
 drivers/misc/Kconfig                          |   1 +
 drivers/misc/Makefile                         |   3 +-
 drivers/misc/mchp_pci1xxxx/Kconfig            |  10 +
 drivers/misc/mchp_pci1xxxx/Makefile           |   1 +
 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.c | 167 +++++++
 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.h |  28 ++
 .../misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c   | 438 ++++++++++++++++++
 8 files changed, 656 insertions(+), 1 deletion(-)
 create mode 100644 drivers/misc/mchp_pci1xxxx/Kconfig
 create mode 100644 drivers/misc/mchp_pci1xxxx/Makefile
 create mode 100644 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.c
 create mode 100644 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.h
 create mode 100644 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c

Comments

Kumaravel Thiagarajan Aug. 24, 2022, 9:50 a.m. UTC | #1
On Tue, 2022-08-23 at 13:22 +0200, Greg KH wrote:
> 
> On Thu, Aug 04, 2022 at 10:02:14PM +0530, Kumaravel Thiagarajan wrote:
> > pci1xxxx is a PCIe switch with a multi-function endpoint on one of its
> > downstream ports. PIO function is one of the functions in the
> > multi-function endpoint. PIO function combines a GPIO controller and also
> > an interface to program pci1xxxx'x OTP & EEPROM. This patch adds an
> > auxiliary bus driver that enumerates separate child devices for gpio and
> > OTP/EEPROM interface and the gpio controller driver for the first child.
> > 
> > Kumaravel Thiagarajan (5):
> >   misc: microchip: pci1xxxx: load auxiliary bus driver for the PIO
> >     function in the multi-function endpoint of pci1xxxx device.
> >   misc: microchip: pci1xxxx: load gpio driver for the gpio controller
> >     auxiliary device enumerated by the auxiliary bus driver.
> >   misc: microchip: pci1xxxx: Add functions to configure gpio pins as
> >     input / output, get status, handle I/O for gpio pins.
> >   misc: microchip: pci1xxxx: Add gpio irq handler and irq helper
> >     functions irq_ack, irq_mask, irq_unmask and irq_set_type of
> >     irq_chip.
> >   misc: microchip: pci1xxxx: Add power management functions - suspend &
> >     resume handlers.
> > 
> >  MAINTAINERS                                   |   9 +
> >  drivers/misc/Kconfig                          |   1 +
> >  drivers/misc/Makefile                         |   3 +-
> >  drivers/misc/mchp_pci1xxxx/Kconfig            |  10 +
> >  drivers/misc/mchp_pci1xxxx/Makefile           |   1 +
> >  drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.c | 167 +++++++
> >  drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.h |  28 ++
> >  .../misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c   | 438 ++++++++++++++++++
> >  8 files changed, 656 insertions(+), 1 deletion(-)
> >  create mode 100644 drivers/misc/mchp_pci1xxxx/Kconfig
> >  create mode 100644 drivers/misc/mchp_pci1xxxx/Makefile
> >  create mode 100644 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.c
> >  create mode 100644 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.h
> >  create mode 100644 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c
> > 
> > --
> > 2.25.1
> > 
> 
> This patch is marked as "RFC" but I don't see any questions that you
> have here.  Please resolve anything you think needs to be handled and
> submit a "this series is ok to be merged" version.

Ok. I will do this.

Thank You.

Regards,
Kumar