linux-toradex.git/include/linux/platform_data/gpio-dwapb.h, branch v5.10-rc3

gpio: dwapb: Add max GPIOs macro

2020-08-27T08:32:57+00:00

Add a new macro DWAPB_MAX_GPIOS which defines the maximum possible number
of GPIO lines corresponding to the maximum DW APB GPIO controller port
width. Use the new macro instead of number literal 32 where it's
applicable.

Suggested-by: Andy Shevchenko 
Signed-off-by: Serge Semin 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20200730152808.2955-5-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Linus Walleij

gpio: dwapb: Remove unneeded has_irq member in struct dwapb_port_property

2020-05-25T09:05:09+00:00

has_irq member of struct dwapb_port_property is used only in one place,
so, make it local test instead and remove from the structure.
This local test is using memchr_inv() which is quite efficient in comparison
to the original loop and possible little overhead can be neglected.

Signed-off-by: Andy Shevchenko 
Tested-by: Serge Semin 
Acked-by: Lee Jones 
Acked-by: Serge Semin 
Link: https://lore.kernel.org/r/20200519131233.59032-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288

2019-06-05T15:36:37+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation this program
  is distributed in the hope it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 263 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Reviewed-by: Alexios Zavras 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de
Signed-off-by: Greg Kroah-Hartman

gpio: dwapb: Fix rework support for 1 interrupt per port A GPIO

2018-05-28T07:45:27+00:00

Commit da069d5d2b814d9887989dcdb29fb0202eac8b38 ("gpio: dwapb: Rework
support for 1 interrupt per port A GPIO"), was an incremental patch that
was supposed to provide the delta between v5 and v6 patch set for
adding support for 1 interupt per port A GPIO. v5 was applied, then some
other feedback came afterwards.

However, in my haste I managed to drop the changes made to dwapb_port_property
struct. This patch includes those missing changes.

Signed-off-by: Phil Edworthy 
Signed-off-by: Linus Walleij

gpio: dwapb: Add support for 1 interrupt per port A GPIO

2018-05-16T12:35:24+00:00

The DesignWare GPIO IP can be configured for either 1 interrupt or 1
per GPIO in port A, but the driver currently only supports 1 interrupt.
See the DesignWare DW_apb_gpio Databook description of the
'GPIO_INTR_IO' parameter.

This change allows the driver to work with up to 32 interrupts, it will
get as many interrupts as specified in the DT 'interrupts' property.
It doesn't do anything clever with the different interrupts, it just calls
the same handler used for single interrupt hardware.

ACPI companion code provided by Hoan Tran . This was tested
on X-Gene by Hoan.

Signed-off-by: Phil Edworthy 
Reviewed-by: Rob Herring 
Acked-by: Lee Jones 
Acked-by: Hoan Tran 
Signed-off-by: Linus Walleij

gpio: dwapb: convert device node to fwnode

2016-04-29T09:23:53+00:00

This patch converts device node to fwnode for dwapb driver, so
as to provide a unified fwnode for DT and ACPI bindings.

Tested-by: Alan Tull 
Acked-by: Andy Shevchenko 
Signed-off-by: Jiang Qiu 
Signed-off-by: Linus Walleij

gpio: dwapb: remove name from dwapb_port_property

2016-04-29T09:22:53+00:00

This patch removed the name property from dwapb_port_property.
The name property is redundant, since we can get this info
from dwapb_gpio dev node.

Reviewed-by: Andy Shevchenko 
Signed-off-by: Jiang Qiu 
Signed-off-by: Linus Walleij

GPIO: gpio-dwapb: Enable platform driver binding to MFD driver

2014-09-23T15:51:37+00:00

The Synopsys DesignWare APB GPIO driver only supports open firmware devices.
But, like Intel Quark X1000 SOC, which has a single PCI function exporting
a GPIO and an I2C controller, it is a Multifunction device. This patch is
to enable the current Synopsys DesignWare APB GPIO driver to support the
Multifunction device which exports the designware GPIO controller.

Reviewed-by: Hock Leong Kweh 
Signed-off-by: Weike Chen 
Signed-off-by: Linus Walleij