Re: [PATCH v3 0/6] genirq/gpio: Add driver for ThunderX and OCTEON-TX SoCs

From: David Daney
Date: Wed Feb 15 2017 - 14:30:19 EST

The kbuild test robot found a compile problem on sparc64, also Christoph has noted, in a reply to a different patch, that pci_enable_msix() is deprecated.

I will respin to correct these issues.


On 02/14/2017 09:49 AM, David Daney wrote:
Per the Subject: Add driver for ThunderX and OCTEON-TX SoCs

This GPIO hardware looks like a PCIe device, with the interrupt signal
from each GPIO line being routed to a dedicated MSI-X. This interrupt
routing requires that we add some custom processing to the beginning
of the MSI-X irqdomain hierarchy.

Changes from v2:

- in 4/6: Added Rob Harring's Acked-by

- Added three patches to genirq/irqdomain to support interrupt code
in the driver.

- Rewrite irq code in driver to use irqdomain hierarchy.

- Other naming and style changes as recommended by Linus Walleij.

Changes from v1:

- in 1/3: Addressed Rob Harring's comments.

- in 2/3: Trivial cleanups found in internal review + add some

David Daney (6):
genirq: Export more irq_chip_*_parent() functions.
genirq: Add handle_fasteoi_{level,edge}_irq flow handlers.
irqdomain: Add irq_domain_{push,pop}_irq() functions.
dt-bindings: gpio: Add binding documentation for gpio-thunderx
gpio: Add gpio driver support for ThunderX and OCTEON-TX

.../devicetree/bindings/gpio/gpio-thunderx.txt | 27 ++
drivers/gpio/Kconfig | 7 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-thunderx.c | 490 +++++++++++++++++++++
include/linux/irq.h | 2 +
include/linux/irqdomain.h | 3 +
kernel/irq/chip.c | 105 +++++
kernel/irq/irqdomain.c | 137 ++++++
9 files changed, 777 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-thunderx.txt
create mode 100644 drivers/gpio/gpio-thunderx.c