[PATCH 2/7] misc: ixp4-beeper: switch to use gpiolib

* [PATCH 2/7] misc: ixp4-beeper: switch to use gpiolib
@ 2013-09-10 12:30 ` Linus Walleij
  0 siblings, 0 replies; 8+ messages in thread
From: Linus Walleij @ 2013-09-10 12:30 UTC (permalink / raw)
  To: linux-gpio, Imre Kaloz, Krzysztof Halasa
  Cc: Alexandre Courbot, linux-arm-kernel, Linus Walleij,
	Arnd Bergmann, Greg Kroah-Hartman

The platform using this beeper has support for gpiolib, so there
is no point to use the custom gpio_line* API. A strange ambiguity
where a line was first set as input and then driven high was
solved by first driving the line high as output and then switch
it to input.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
Arnd/Greg: seeking your ACK to take this through the GPIO tree
as part of the attempt at cleaning out custom GPIO implementations.
---
 drivers/input/misc/ixp4xx-beeper.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
index f34beb2..f14afd0 100644
--- a/drivers/input/misc/ixp4xx-beeper.c
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
+#include <linux/gpio.h>
 #include <mach/hardware.h>
 
 MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
@@ -35,15 +36,12 @@ static void ixp4xx_spkr_control(unsigned int pin, unsigned int count)
 
 	spin_lock_irqsave(&beep_lock, flags);
 
-	 if (count) {
-		gpio_line_config(pin, IXP4XX_GPIO_OUT);
-		gpio_line_set(pin, IXP4XX_GPIO_LOW);
-
+	if (count) {
+		gpio_direction_output(pin, 0);
 		*IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE;
 	} else {
-		gpio_line_config(pin, IXP4XX_GPIO_IN);
-		gpio_line_set(pin, IXP4XX_GPIO_HIGH);
-
+		gpio_direction_output(pin, 1);
+		gpio_direction_input(pin);
 		*IXP4XX_OSRT2 = 0;
 	}
 
-- 
1.8.3.1


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