| From: |
| <thloh@altera.com> |
| To: |
| <robh+dt@kernel.org>, <pawel.moll@arm.com>, <mark.rutland@arm.com>, <ijc+devicetree@hellion.org.uk>, <galak@codeaurora.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linus.walleij@linaro.org>, <gnurou@gmail.com>, <grant.likely@linaro.org>, <akpm@linux-foundation.org>, <davem@davemloft.net>, <gregkh@linuxfoundation.org>, <joe@perches.com>, <mchehab@osg.samsung.com>, <crope@iki.fi>, <linux-gpio@vger.kernel.org> |
| Subject: |
| [PATCH v9 0/2] Altera soft IP GPIO driver |
| Date: |
| Mon, 5 Jan 2015 18:19:31 -0800 |
| Message-ID: |
| <1420510773-24605-1-git-send-email-thloh@altera.com> |
| Cc: |
| <thloh.linux@gmail.com>, <thloh@altera.com> |
| Archive‑link: | |
Article |
From: Tien Hock Loh <thloh@altera.com>
Adds a new device tree binding and driver for Altera soft GPIO IP.
The driver is able to do read/write and allows GPIO to be a interrupt
controller.
Tested on Altera GHRD on interrupt handling and IO.
v9:
Removed duplicated initialization on set_type
using temporals to improve code readability in calling generic_handle_irq
Using ?: ternary to reduce code size
v8:
Using for_each_set_bit
added const for struct definition
removed naggy pr_err
sort alpha header
remove unused macros
use fixed width data types instead of unsigned long
whitespace issue fixes
removed _relaxed function for better compatibility across different CPU
changed irq_create_mapping to platform_get_irq
updated implementation to use gpiochip_irqchip_add
reserve interrupt-cells number 2 in device tree binding for future use
remove confusing sections on devicetree bindings
Added tristate Kconfig help text
v7:
used dev_warn instead of pr_warn
clean up unnecesarry if else indentation
v6:
Added irq_startup and irq_shutdown
changed bitwise clamping style
cleanup bitwise operation to improve readability
change naming of mapped irqs from virq to mapped_irq
v5:
dispose irq_domain mapping correctly
update optional binding description in binding docs
v4:
added vendor prefix to devicetree binding for IP specific properties
using MMIO GPIO helper library instead of manually map PIO to memory
altera_gpio_chip inline struct documentation to kerneldoc
using dev_ print to print a better failure message
v2, v3:
Do not reference NO_IRQ
Updated irq_set_type to only allow the hardware configured irq type
Tien Hock Loh (2):
drivers/gpio: Altera soft IP GPIO driver device tree binding
drivers/gpio: Altera soft IP GPIO driver
.../devicetree/bindings/gpio/gpio-altera.txt | 43 +++
MAINTAINERS | 6 +
drivers/gpio/Kconfig | 8 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-altera.c | 405 +++++++++++++++++++++
5 files changed, 463 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-altera.txt
create mode 100644 drivers/gpio/gpio-altera.c
--
1.7.11.GIT
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