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yaml
---
r: 100716
b: refs/heads/master
c: d41d219
h: refs/heads/master
v: v3
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Matthias Kaehlcke authored and Russell King committed Jul 3, 2008
1 parent 81d282c commit c3bda58
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Showing 2 changed files with 10 additions and 9 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 3c093f9f182eef6a8dc535f2c62b36a0320d0db1
refs/heads/master: d41d219e8154885105d631661e5a86ba6461fb81
17 changes: 9 additions & 8 deletions trunk/arch/arm/mach-omap1/board-nokia770.c
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/clk.h>
Expand Down Expand Up @@ -202,7 +203,7 @@ static struct omap_board_config_kernel nokia770_config[] __initdata = {
#define AMPLIFIER_CTRL_GPIO 58

static struct clk *dspxor_ck;
static DECLARE_MUTEX(audio_pwr_sem);
static DEFINE_MUTEX(audio_pwr_lock);
/*
* audio_pwr_state
* +--+-------------------------+---------------------------------------+
Expand All @@ -218,7 +219,7 @@ static DECLARE_MUTEX(audio_pwr_sem);
static int audio_pwr_state = -1;

/*
* audio_pwr_up / down should be called under audio_pwr_sem
* audio_pwr_up / down should be called under audio_pwr_lock
*/
static void nokia770_audio_pwr_up(void)
{
Expand All @@ -237,11 +238,11 @@ static void nokia770_audio_pwr_up(void)

static void codec_delayed_power_down(struct work_struct *work)
{
down(&audio_pwr_sem);
mutex_lock(&audio_pwr_lock);
if (audio_pwr_state == -1)
aic23_power_down();
clk_disable(dspxor_ck);
up(&audio_pwr_sem);
mutex_unlock(&audio_pwr_lock);
}

static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
Expand All @@ -258,19 +259,19 @@ static void nokia770_audio_pwr_down(void)
static int
nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
{
down(&audio_pwr_sem);
mutex_lock(&audio_pwr_lock);
if (audio_pwr_state == -1)
nokia770_audio_pwr_up();
/* force audio_pwr_state = 0, even if it was 1. */
audio_pwr_state = 0;
up(&audio_pwr_sem);
mutex_unlock(&audio_pwr_lock);
return 0;
}

static int
nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
{
down(&audio_pwr_sem);
mutex_lock(&audio_pwr_lock);
switch (stage) {
case 1:
if (audio_pwr_state == 0)
Expand All @@ -283,7 +284,7 @@ nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
}
break;
}
up(&audio_pwr_sem);
mutex_unlock(&audio_pwr_lock);
return 0;
}

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