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gpiolib: Pass array info to get/set array functions

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In order to make use of array info obtained from gpiod_get_array() and
speed up processing of arrays matching single GPIO chip layout, that
information must be passed to get/set array functions.  Extend the
functions' API with that additional parameter and update all users.
Pass NULL if a user builds an array itself from single GPIOs.

Cc: Jonathan Corbet <[email protected]>
Cc: Miguel Ojeda Sandonis <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Sebastien Bourdelin <[email protected]>
Cc: Lukas Wunner <[email protected]>
Cc: Peter Korsgaard <[email protected]>
Cc: Peter Rosin <[email protected]>
Cc: Andrew Lunn <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Rojhalat Ibrahim <[email protected]>
Cc: Dominik Brodowski <[email protected]>
Cc: Russell King <[email protected]>
Cc: Kishon Vijay Abraham I <[email protected]>
Cc: Tony Lindgren <[email protected]>
Cc: Lars-Peter Clausen <[email protected]>
Cc: Michael Hennerich <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Hartmut Knaack <[email protected]>
Cc: Peter Meerwald-Stadler <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Yegor Yefremov <[email protected]>
Cc: Uwe Kleine-König <[email protected]>
Signed-off-by: Janusz Krzysztofik <[email protected]>
Acked-by: Ulf Hansson <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Janusz Krzysztofik 2018-09-05 23:50:07 +02:00 • committed by Linus Walleij
commit 77588c14ac
15 changed files with 86 additions and 26 deletions
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8
drivers/auxdisplay/hd44780.c
View file

@ -70,7 +70,7 @@ static void hd44780_write_gpio8(struct hd44780 *hd, u8 val, unsigned int rs)
n = hd->pins[PIN_CTRL_RW] ? 10 : 9;
/* Present the data to the port */
gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA0], values);
gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA0], NULL, values);
hd44780_strobe_gpio(hd);
}
@ -87,7 +87,7 @@ static void hd44780_write_gpio4(struct hd44780 *hd, u8 val, unsigned int rs)
n = hd->pins[PIN_CTRL_RW] ? 6 : 5;
/* Present the data to the port */
gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], values);
gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);
hd44780_strobe_gpio(hd);
@ -96,7 +96,7 @@ static void hd44780_write_gpio4(struct hd44780 *hd, u8 val, unsigned int rs)
values[0] |= val & 0x0f;
/* Present the data to the port */
gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], values);
gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);
hd44780_strobe_gpio(hd);
}
@ -152,7 +152,7 @@ static void hd44780_write_cmd_raw_gpio4(struct charlcd *lcd, int cmd)
n = hd->pins[PIN_CTRL_RW] ? 6 : 5;
/* Present the data to the port */
gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], values);
gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);
hd44780_strobe_gpio(hd);
}