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From: Ahmad Fatoum <ahmad@a3f.at>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <ahmad@a3f.at>
Subject: [PATCH] gpio: pl061: implement gpio_ops::get_direction
Date: Sat, 10 Apr 2021 12:51:10 +0200	[thread overview]
Message-ID: <20210410105110.2080785-1-ahmad@a3f.at> (raw)

This makes gpioinfo on board that incorporate it more useful.

Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
---
 drivers/gpio/gpio-pl061.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index b9a8846dedaa..8dd9ca3bd5cd 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -84,7 +84,18 @@ static void pl061_set_value(struct gpio_chip *gc, unsigned offset, int value)
 	writeb(!!value << offset, chip->base + (1 << (offset + 2)));
 }
 
+static int pl061_get_direction(struct gpio_chip *gc, unsigned offset)
+{
+	struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
+
+	if (readb(chip->base + GPIODIR) & (1 << offset))
+		return GPIOF_DIR_OUT;
+
+	return GPIOF_DIR_IN;
+}
+
 static struct gpio_ops pl061_gpio_ops = {
+	.get_direction = pl061_get_direction,
 	.direction_input = pl061_direction_input,
 	.direction_output = pl061_direction_output,
 	.get = pl061_get_value,
-- 
2.30.0


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             reply	other threads:[~2021-04-10 10:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-10 10:51 Ahmad Fatoum [this message]
2021-04-13  7:20 ` Sascha Hauer

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