[PATCH 2/4] cris: Update comments for generic idle conversion

Geert Uytterhoeven
2014-05-23T08:55:58Z

As of commit 8dc7c5ecd8d0f739728d844ee794c4fae169f9c2 ("cris: Use generic
idle loop"), cris no longer provides cpu_idle().

- On cris-v10, etrax_gpio_wake_up_check() is called from
default_idle() instead of cpu_idle(),
- On cris-v32, etrax_gpio_wake_up_check() is not called from
default_idle(), so remove this (copy-and-paste?) part.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: linux-cris-kernel@axis.com
---
arch/cris/arch-v10/drivers/gpio.c | 4 ++--
arch/cris/arch-v32/drivers/mach-fs/gpio.c | 6 +-----
2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index f4374bae4fb4..64285e0d3481 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -833,8 +833,8 @@ static int __init gpio_init(void)
printk(KERN_INFO "ETRAX 100LX GPIO driver v2.5, (c) 2001-2008 "
"Axis Communications AB\n");
/* We call etrax_gpio_wake_up_check() from timer interrupt and
- * from cpu_idle() in kernel/process.c
- * The check in cpu_idle() reduces latency from ~15 ms to ~6 ms
+ * from default_idle() in kernel/process.c
+ * The check in default_idle() reduces latency from ~15 ms to ~6 ms
* in some tests.
*/
res = request_irq(TIMER0_IRQ_NBR, gpio_poll_timer_interrupt,
diff --git a/arch/cris/arch-v32/drivers/mach-fs/gpio.c b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
index 9e54273af0ca..009f4ee1bd09 100644
--- a/arch/cris/arch-v32/drivers/mach-fs/gpio.c
+++ b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
@@ -958,11 +958,7 @@ gpio_init(void)

printk(KERN_INFO "ETRAX FS GPIO driver v2.5, (c) 2003-2007 "
"Axis Communications AB\n");
- /* We call etrax_gpio_wake_up_check() from timer interrupt and
- * from cpu_idle() in kernel/process.c
- * The check in cpu_idle() reduces latency from ~15 ms to ~6 ms
- * in some tests.
- */
+ /* We call etrax_gpio_wake_up_check() from timer interrupt */
if (request_irq(TIMER0_INTR_VECT, gpio_poll_timer_interrupt,
IRQF_SHARED, "gpio poll", &alarmlist))
printk(KERN_ERR "timer0 irq for gpio\n");
--
1.9.1