r3173 - trunk/src/target/kernel/patches

[laforge at sita.openmoko.org]

Author: laforge
Date: 2007-10-15 14:49:23 +0200 (Mon, 15 Oct 2007)
New Revision: 3173

Modified:
   trunk/src/target/kernel/patches/gta01-vibrator.patch
Log:
increase vibrator PWM frequency to 257kHz (66MHz / 2 / 2 / 64) to be outside
the human-audible range.  It's a vibrator, not a 4kHz beeper!


Modified: trunk/src/target/kernel/patches/gta01-vibrator.patch
===================================================================
--- trunk/src/target/kernel/patches/gta01-vibrator.patch	2007-10-15 12:13:46 UTC (rev 3172)
+++ trunk/src/target/kernel/patches/gta01-vibrator.patch	2007-10-15 12:49:23 UTC (rev 3173)
@@ -31,7 +31,7 @@
 +#include <asm/arch/pwm.h>
 +#include <asm/arch/gta01.h>
 +
-+#define COUNTER 256
++#define COUNTER 64
 +
 +struct gta01_vib_priv
 +{
@@ -64,7 +64,7 @@
 + 	 */
 + 	mutex_lock(&vp->mutex);
 +	if (vp->has_pwm) {
-+			s3c2410_pwm_duty_cycle(value, vp->pwm);
++			s3c2410_pwm_duty_cycle(value/4, vp->pwm);
 +			s3c2410_gpio_cfgpin(vp->gpio, S3C2410_GPB3_TOUT3);
 +	} else {
 +		if (value)
@@ -102,7 +102,7 @@
 +	vp->pwm->timerid= PWM3;
 +	/* use same prescaler as arch/arm/plat-s3c24xx/time.c */
 +	vp->pwm->prescaler = (6 - 1) / 2;
-+	vp->pwm->divider = S3C2410_TCFG1_MUX3_DIV16;
++	vp->pwm->divider = S3C2410_TCFG1_MUX3_DIV2;
 +	vp->pwm->counter = COUNTER;
 +	vp->pwm->comparer = COUNTER;
 +