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Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and also it prints the error value.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Bartosz Golaszewski <[email protected]>
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Replace verbose implementation in get_multiple callback with
for_each_set_clump8 macro to simplify code and improve clarity.
Link: http://lkml.kernel.org/r/8a39ee772247d4b7d752b32dbacc06c1cdcb60b5.1570641097.git.vilhelm.gray@gmail.com
Signed-off-by: William Breathitt Gray <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Morten Hein Tiljeset <[email protected]>
Cc: Sean Nyekjaer <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Bartosz Golaszewski <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: Lukas Wunner <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Mathias Duckeck <[email protected]>
Cc: Phil Reid <[email protected]>
Cc: Rasmus Villemoes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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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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Signed-off-by: Morten Hein Tiljeset <[email protected]>
Reviewed-by: Sean Nyekjaer <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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These structures are only used to copy into other structures, so declare
them as const.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct gpio_chip i@p = { ... };
@ok@
identifier r.i;
expression e;
position p;
@@
e = i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct gpio_chip e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct gpio_chip i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <[email protected]>
Acked-by: Joachim Eastwood <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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This driver has .can_sleep flag set.
So the pisosr_gpio_get() can be called from contexts that can sleep.
Thus use the cansleep() variant in pisosr_gpio_refresh().
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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gpio->load_gpio is optional, so use devm_gpiod_get_optional instead.
Signed-off-by: Axel Lin <[email protected]>
Acked-by: Andrew F. Davis <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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If spi_read() fails then we just returned but we missed unlocking the
mutex.
Signed-off-by: Sudip Mukherjee <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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Add generic parallel-in/serial-out shift register GPIO driver.
This includes SPI compatible devices like SN74165 serial-out shift
registers and the SN65HVS88x series of industrial serializers that can
be read over the SPI bus and used for GPI (General Purpose Input).
Signed-off-by: Andrew F. Davis <[email protected]>
Tested-by: Sean Nyekjaer <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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