diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-09-02 15:42:02 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2022-10-17 12:02:35 +0300 |
| commit | 95b39792c6646322e0684f1a1aa395ee82b6f3fb (patch) | |
| tree | 4431d8df35466e31c1e70ba5cede4507de842564 /drivers/gpio/gpio-aggregator.c | |
| parent | 317627a4a19e2a6f8d60e3e2eefe6dfd87059d79 (diff) | |
| download | linux-95b39792c6646322e0684f1a1aa395ee82b6f3fb.tar.xz | |
gpio: aggregator: Stop using ARCH_NR_GPIOS
ARCH_NR_GPIOS is used locally in aggr_parse() as the maximum number
of GPIOs to be aggregated together by the driver since
commit ec75039d5550 ("gpio: aggregator: Use bitmap_parselist() for
parsing GPIO offsets").
Don't rely on the total possible number of GPIOs in the system but
define a local arbitrary macro for that, set to 512 which should be
large enough as it is also the default value for ARCH_NR_GPIOS.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-aggregator.c')
| -rw-r--r-- | drivers/gpio/gpio-aggregator.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-aggregator.c b/drivers/gpio/gpio-aggregator.c index 0cb2664085cf..6d17d262ad91 100644 --- a/drivers/gpio/gpio-aggregator.c +++ b/drivers/gpio/gpio-aggregator.c @@ -23,6 +23,7 @@ #include <linux/spinlock.h> #include <linux/string.h> +#define AGGREGATOR_MAX_GPIOS 512 /* * GPIO Aggregator sysfs interface @@ -64,7 +65,7 @@ static int aggr_parse(struct gpio_aggregator *aggr) unsigned int i, n = 0; int error = 0; - bitmap = bitmap_alloc(ARCH_NR_GPIOS, GFP_KERNEL); + bitmap = bitmap_alloc(AGGREGATOR_MAX_GPIOS, GFP_KERNEL); if (!bitmap) return -ENOMEM; @@ -84,13 +85,13 @@ static int aggr_parse(struct gpio_aggregator *aggr) } /* GPIO chip + offset(s) */ - error = bitmap_parselist(offsets, bitmap, ARCH_NR_GPIOS); + error = bitmap_parselist(offsets, bitmap, AGGREGATOR_MAX_GPIOS); if (error) { pr_err("Cannot parse %s: %d\n", offsets, error); goto free_bitmap; } - for_each_set_bit(i, bitmap, ARCH_NR_GPIOS) { + for_each_set_bit(i, bitmap, AGGREGATOR_MAX_GPIOS) { error = aggr_add_gpio(aggr, name, i, &n); if (error) goto free_bitmap; |