linux-kernel - [PATCH 14/62] gpio: gpio-gpio-mm: Use new GPIO_LINE

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Message-ID: <ddb3030b090543401c8c8348938e5bbf5bd9e25e.1572945762.git.matti.vaittinen@fi.rohmeurope.com>
Date:   Tue, 5 Nov 2019 12:16:25 +0200
From:   Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
To:     matti.vaittinen@...rohmeurope.com, mazziesaccount@...il.com
Cc:     William Breathitt Gray <vilhelm.gray@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 14/62] gpio: gpio-gpio-mm: Use new GPIO_LINE_DIRECTION

It's hard for occasional GPIO code reader/writer to know if values 0/1
equal to IN or OUT. Use defined GPIO_LINE_DIRECTION_IN and
GPIO_LINE_DIRECTION_OUT to help them out.

Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
---
 drivers/gpio/gpio-gpio-mm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-gpio-mm.c b/drivers/gpio/gpio-gpio-mm.c
index 78a1db24e931..c22d6f94129c 100644
--- a/drivers/gpio/gpio-gpio-mm.c
+++ b/drivers/gpio/gpio-gpio-mm.c
@@ -52,7 +52,10 @@ static int gpiomm_gpio_get_direction(struct gpio_chip *chip,
 	const unsigned int port = offset / 8;
 	const unsigned int mask = BIT(offset % 8);
 
-	return !!(gpiommgpio->io_state[port] & mask);
+	if (gpiommgpio->io_state[port] & mask)
+		return GPIO_LINE_DIRECTION_IN;
+
+	return GPIO_LINE_DIRECTION_OUT;
 }
 
 static int gpiomm_gpio_direction_input(struct gpio_chip *chip,
-- 
2.21.0


-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]