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authorMika Westerberg <mika.westerberg@linux.intel.com>2014-10-31 13:40:58 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-11-04 21:58:25 +0100
commitc673a2b4008103525a3cf21bedf15ffac37bfef0 (patch)
tree66ab68fab43ca9311a0eef5ddec307d332735510 /arch/arm/plat-orion
parente36d453e98c57dda0f8ba68585676ac4ba36631e (diff)
downloadop-kernel-dev-c673a2b4008103525a3cf21bedf15ffac37bfef0.zip
op-kernel-dev-c673a2b4008103525a3cf21bedf15ffac37bfef0.tar.gz
leds: leds-gpio: Convert gpio_blink_set() to use GPIO descriptors
Commit 21f2aae91e902aad ("leds: leds-gpio: Add support for GPIO descriptors") already converted most of the driver to use GPIO descriptors. What is still missing is the platform specific hook gpio_blink_set() and board files which pass legacy GPIO numbers to this driver in platform data. In this patch we handle the former and convert gpio_blink_set() to take GPIO descriptor instead. In order to do this we convert the existing four users to accept GPIO descriptor and translate it to legacy GPIO number in the platform code. This effectively "pushes" legacy GPIO number usage from the driver to platforms. Also add comment to the remaining block describing that it is legacy code path and we are getting rid of it eventually. Suggested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/arm/plat-orion')
-rw-r--r--arch/arm/plat-orion/gpio.c3
-rw-r--r--arch/arm/plat-orion/include/plat/orion-gpio.h5
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c
index b61a3bc..b357053 100644
--- a/arch/arm/plat-orion/gpio.c
+++ b/arch/arm/plat-orion/gpio.c
@@ -306,9 +306,10 @@ EXPORT_SYMBOL(orion_gpio_set_blink);
#define ORION_BLINK_HALF_PERIOD 100 /* ms */
-int orion_gpio_led_blink_set(unsigned gpio, int state,
+int orion_gpio_led_blink_set(struct gpio_desc *desc, int state,
unsigned long *delay_on, unsigned long *delay_off)
{
+ unsigned gpio = desc_to_gpio(desc);
if (delay_on && delay_off && !*delay_on && !*delay_off)
*delay_on = *delay_off = ORION_BLINK_HALF_PERIOD;
diff --git a/arch/arm/plat-orion/include/plat/orion-gpio.h b/arch/arm/plat-orion/include/plat/orion-gpio.h
index e763988..e856b073a 100644
--- a/arch/arm/plat-orion/include/plat/orion-gpio.h
+++ b/arch/arm/plat-orion/include/plat/orion-gpio.h
@@ -14,12 +14,15 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/irqdomain.h>
+
+struct gpio_desc;
+
/*
* Orion-specific GPIO API extensions.
*/
void orion_gpio_set_unused(unsigned pin);
void orion_gpio_set_blink(unsigned pin, int blink);
-int orion_gpio_led_blink_set(unsigned gpio, int state,
+int orion_gpio_led_blink_set(struct gpio_desc *desc, int state,
unsigned long *delay_on, unsigned long *delay_off);
#define GPIO_INPUT_OK (1 << 0)
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