From 17b6038942e304c522d0688c2b29b1c630f1cfa6 Mon Sep 17 00:00:00 2001 From: William Breathitt Gray Date: Wed, 4 Dec 2019 16:51:25 -0800 Subject: gpio: uniphier: utilize for_each_set_clump8 macro Replace verbose implementation in set_multiple callback with for_each_set_clump8 macro to simplify code and improve clarity. An improvement in this case is that banks that are not masked will now be skipped. Link: http://lkml.kernel.org/r/5b24887e97f3093e4832d7c50a1093f537e91ab4.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray Cc: Andy Shevchenko Cc: Masahiro Yamada Cc: Arnd Bergmann Cc: Bartosz Golaszewski Cc: Geert Uytterhoeven Cc: Geert Uytterhoeven Cc: Linus Walleij Cc: Lukas Wunner Cc: Mathias Duckeck Cc: Morten Hein Tiljeset Cc: Phil Reid Cc: Rasmus Villemoes Cc: Sean Nyekjaer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/gpio-uniphier.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) (limited to 'drivers/gpio') diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c index bd203e8fa58e..7ec97499b7f7 100644 --- a/drivers/gpio/gpio-uniphier.c +++ b/drivers/gpio/gpio-uniphier.c @@ -15,9 +15,6 @@ #include #include -#define UNIPHIER_GPIO_BANK_MASK \ - GENMASK((UNIPHIER_GPIO_LINES_PER_BANK) - 1, 0) - #define UNIPHIER_GPIO_IRQ_MAX_NUM 24 #define UNIPHIER_GPIO_PORT_DATA 0x0 /* data */ @@ -150,15 +147,11 @@ static void uniphier_gpio_set(struct gpio_chip *chip, static void uniphier_gpio_set_multiple(struct gpio_chip *chip, unsigned long *mask, unsigned long *bits) { - unsigned int bank, shift, bank_mask, bank_bits; - int i; + unsigned long i, bank, bank_mask, bank_bits; - for (i = 0; i < chip->ngpio; i += UNIPHIER_GPIO_LINES_PER_BANK) { + for_each_set_clump8(i, bank_mask, mask, chip->ngpio) { bank = i / UNIPHIER_GPIO_LINES_PER_BANK; - shift = i % BITS_PER_LONG; - bank_mask = (mask[BIT_WORD(i)] >> shift) & - UNIPHIER_GPIO_BANK_MASK; - bank_bits = bits[BIT_WORD(i)] >> shift; + bank_bits = bitmap_get_value8(bits, i); uniphier_gpio_bank_write(chip, bank, UNIPHIER_GPIO_PORT_DATA, bank_mask, bank_bits); -- cgit v1.2.3-58-ga151