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It's hard for occasional GPIO code reader/writer to know if values 0/1
equal to IN or OUT. Use defined GPIO_LINE_DIRECTION_IN and
GPIO_LINE_DIRECTION_OUT to help them out.
NOTE - for gpio-amd-fch and gpio-bd9571mwv:
This commit also changes the return value for direction get to equal 1
for direction INPUT. Prior this commit these drivers might have
returned some other positive value but 1 for INPUT.
Signed-off-by: Matti Vaittinen <[email protected]>
Acked-by: Scott Branden <[email protected]>
Reviewed-by: Grygorii Strashko <[email protected]>
Reviewed-by: Michal Simek <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Acked-by: William Breathitt Gray <[email protected]>
Acked-by: Kuppuswamy Sathyanarayanan <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 3029 file(s).
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Use the new helper that wraps the calls to platform_get_resource()
and devm_ioremap_resource() together.
Signed-off-by: Enrico Weigelt, metux IT consult <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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Use of_device_get_match_data() instead of open-coding it.
Signed-off-by: Thierry Reding <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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Use devm_gpiochip_add_data() for GPIO registration and remove the
call for gpiochip_remove() from error path.
Also remove the need of driver callback .remove.
Signed-off-by: Laxman Dewangan <[email protected]>
Cc: Alexander Shiyan <[email protected]>
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The separate struct bgpio_chip has been a pain to handle, both
by being confusingly similar in name to struct gpio_chip and
for being contained inside a struct so that struct gpio_chip
is contained in a struct contained in a struct, making several
steps of dereferencing necessary.
Make things simpler: include the fields directly into
<linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
some of the member variables with bgpio_* and add proper
kerneldoc while we're at it.
Modify all users to handle the change and use a struct
gpio_chip directly. And while we're at it: replace all
container_of() dereferencing by gpiochip_get_data() and
registering the gpio_chip with gpiochip_add_data().
Cc: [email protected]
Cc: Alexander Shiyan <[email protected]>
Cc: Shawn Guo <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Alexandre Courbot <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: Lorenzo Pieralisi <[email protected]>
Cc: Nicolas Pitre <[email protected]>
Cc: Olof Johansson <[email protected]>
Cc: Vladimir Zapolskiy <[email protected]>
Cc: Rabin Vincent <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Acked-by: Gregory Fong <[email protected]>
Acked-by: Liviu Dudau <[email protected]>
Acked-by: H Hartley Sweeten <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Lee Jones <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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of_match_device could return NULL, and so cause a NULL pointer
dereference later at line 132:
priv->flags = (uintptr_t) of_id->data;
Reported-by: coverity (CID 1324141)
Signed-off-by: LABBE Corentin <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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This fixes the build warning , warning: cast from pointer to integer
of different size when building this file on a x86 allmodconfig
configuration. In order for me to fix this build warning I changed
the cast in the function mmio_74xx_gpio_probe from casting the
variable data of the stucture pointer of_id to uintptr_t rather
then unsigned when assigning to the variable flag of the structure
pointer priv of the structure type mmio_74xx_gpio_priv.
Signed-off-by: Nicholas Krause <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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This patch adds driver to support GPIO functionality for 74xx-compatible
ICs with MMIO access. Compatible models include:
1 bit: 741G125 (Input), 741G74 (Output)
2 bits: 742G125 (Input), 7474 (Output)
4 bits: 74125 (Input), 74175 (Output)
6 bits: 74365 (Input), 74174 (Output)
8 bits: 74244 (Input), 74273 (Output)
16 bits: 741624 (Input), 7416374 (Output)
Signed-off-by: Alexander Shiyan <[email protected]>
Reviewed-by: Alexandre Courbot <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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