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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2018-12-18 09:47:57 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-12-21 11:29:57 +0100 |
| commit | f0df462f3ae1d10131f8ff7daa016ce1a8686727 (patch) | |
| tree | 4f96aa4bda17a100659cd6eca661fc4c8d6a7ff8 /drivers/gpio | |
| parent | 533918b6f6ae7566b703adf0346dd15f2a60fe77 (diff) | |
| download | linux-0-day-f0df462f3ae1d10131f8ff7daa016ce1a8686727.tar.gz linux-0-day-f0df462f3ae1d10131f8ff7daa016ce1a8686727.tar.xz | |
gpio: mxs: read pin level directly instead of using .get
Calling readl directly instead of going through another function that
results in the same result to remove some overhead. I didn't try to
measure the performance gain, but IMHO there is little benefit from
abstracting a GPIO register access in the GPIO driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-mxs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c index ea874fd033a5e..5e5437a2c607e 100644 --- a/drivers/gpio/gpio-mxs.c +++ b/drivers/gpio/gpio-mxs.c @@ -84,7 +84,7 @@ static int mxs_gpio_set_irq_type(struct irq_data *d, unsigned int type) port->both_edges &= ~pin_mask; switch (type) { case IRQ_TYPE_EDGE_BOTH: - val = port->gc.get(&port->gc, d->hwirq); + val = readl(port->base + PINCTRL_DIN(port)) & pin_mask; if (val) edge = GPIO_INT_FALL_EDGE; else |