With the new more strict ACPI gpio code the DSDT's IoRestriction flags
are honored on gpiod_get(), but in some DSDT's it is wrong, so explicitly
call gpiod_direction_input() on the IRQ GPIO if necessary.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/iio/proximity/sx9500.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c
index eb687b3dd442..3cf054155779 100644
--- a/drivers/iio/proximity/sx9500.c
+++ b/drivers/iio/proximity/sx9500.c
@@ -17,6 +17,7 @@
#include <linux/irq.h>
#include <linux/acpi.h>
#include <linux/gpio/consumer.h>
+#include <linux/gpio.h>
#include <linux/regmap.h>
#include <linux/pm.h>
#include <linux/delay.h>
@@ -892,8 +893,13 @@ static void sx9500_gpio_probe(struct i2c_client *client,
gpiod_int = devm_gpiod_get(dev, "interrupt", GPIOD_IN);
if (IS_ERR(gpiod_int))
dev_err(dev, "gpio get irq failed\n");
- else
+ else {
+ if (gpiod_get_direction(gpiod_int) != GPIOF_DIR_IN) {
+ dev_warn(dev, FW_BUG "IRQ GPIO not in input mode, fixing\n");
+ gpiod_direction_input(gpiod_int);
+ }
client->irq = gpiod_to_irq(gpiod_int);
+ }
}
data->gpiod_rst = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
--
2.14.2
--
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